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Military-Style Radio - Manpack Crossband Repeater - Part III
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Yes to the cross band video, please. Really enjoy your videos: the right subject matter, the right length and concise. Thank you.
You got it!
Duty cycle refers to the percentage of time the radio is transmitting. If no one is transmitting, the radio is not operating at 100% duty cycle. Being in crossband repeat will be higher duty cycle, but that doesn't mean it's 100%.
Thanks for the correction. Yes, I should have been more clear that it's only while transmitting.
If we’re only talking about while transmitting, isn’t FM always 100%?
@@GeorgeAdams duty cycle is the percentage of time you transmit, the mode doesn't change anything. As an example, if a radio is transmitting 15 seconds per minute on average, that is a 25% duty cycle.
I have been trying to make something like this for over a year, but couldn’t figured it out. This has been super helpful, and has me excited to start a build.
Glad it helped! Good luck.
Thank you, this is the one I've been waiting for. The cross-band feature is of particularly important to me to cross-band to the HT's. Also important is setting up the digital aspect. Just found the taller pouch for the radio to not have to cut the top.
That's great. Apologies about the lighting. I will try to make the detailed configuration video for transmit boost as soon as I can. X-band Repeat is a force multiplier. Good luck with your build.
What pouch is that?
@@jeffallen6459 5.11 6.0 I think is what it is called. It is again discontinued but is 10 inches tall. Found new unused.
Great way to extend a SAR or Woodland Fire team's communication back to incident management / TOC. I've always wondered why LEO/Fire doesn't have something like this inside say, the SGT/LT/Chief's vehicle, to extend communications for everyone involved (think of the active shooter @ the Washington Navy Yard).
It's one thing to be in a big city, with repeaters everywhere, or being somewhere with a planned repeater network (you can talk from Pueblo, CO to Cheyenne, WY, up and down the I25 corridor, on LMRs). But like where I live now (south central PA), with lots of hills and out in the sticks, there are places out here where you could end up in a commo black hole (on LMRs).
I also like the idea of having a 10M/HF band available, for Long Distance/Over the Horizon communications. In an Overlanding scenario, there are definitely places out in the middle of nowhere, that have little to NO communications coverage (cell or repeater). Yes, you could purchase a "Satellite phone" to overcome that, but a radio like this makes a lot more sense (IMO). Throw a simple longwire/half-doublet antenna in your Rig, and you have an Emergency backup (PACE plan).
Something like this could also be used in Milsim/Airsoft games as a "GOD" radio, with Administration being able to flip channels and blast out to EVERYONE (at 50Watts) to cease game because of an Emergency (it's amazing how Airsoft pyro can set things on fire).
Portable crossband repeater stations have tons of practical applications. I'll be joining our local SAR group next year. I'm curious to see how they run their comms.
Like you, I live in a remote area where the only utility we get is electricity. Radio is how my wife and I stay in contact. The x-band repeater is a great way for us to extend our communications when I'm running around the National Forest behind our house.
Note: This rig only does FM on 10m. I'll be doing an HF manpack video next in the series.
Thanks for the comment. Happy Friday!
@@TheTechPrepper Why is FM on 10M a big deal? In my simple mind, AM is for data and FM is for voice (simplified, we would send data over a FM SATCOM WB channel and even LMR (FM) data networks in Bosnia and Iraq). If I was looking at a 10M rig as an Emergency communications system, then Vox would work for that....all I need it for is to send a simple/civilian 9-line saying I'm in trouble, here's my location, here's the issue, and here's what I need.....send help.
@@JohnGatesIII SSB gives you way more range for the power used. It's about efficiency, but the size of the radio would go way up.
They exist and have been deployed for quite a while now. Read up on Pyramid SVR and Futurecom DVRS systems.
I use the TYT9800 in the Armaloq configuration. I picked it because it has a 6.25 khz spacing which Europe requires for PMR 446, and for UK FM CB, as well as the amateur stuff.
73 2M0ILA
I got these same bags and used .5” metal grommets between them to pass cables. I also sewn on Velcro squares between them to keep them better aligned and attached.
Can you post a link to the grommets?
I had an 8800 and sold it to a local new ham. It is a good radio.
Now I want it back LOL.
It's a great rig. I had the FT-8800R in my notes, but failed to mention it in the video. Most of the guys in our county's group run the FT-8800. Never sell your radios! ;-)
Really appreciate the channel! helped motivate me to pursue comms training further. Passed my tech/general today and I'm looking forward to putting the used 8900 I found to use soon. Please continue to share your experience it is greatly appreciated!
Congratulations and welcome to the dark side. The FT-8900 is a great classic radio that is still very capable to this day. It's hands down my favorite dual-band mobile rig. Good luck with your journey.
@@TheTechPrepper thanks! Looking forward to getting some experience and learning what works around me and building a complete system
Yes please on the cross-band Jedi video
Done. Who knows, I may even make this the next video. This time I'll film outside, so that there's better light.
This setup in this video is exactly what I’ve been looking for and yes please call d love to see how the cross banding works as that to me is an extremely important and somewhat confusing aspect of the setup.
Glad to hear. Yes, I will be covering a detailed setup for full duplex x-band and transmit boost in the mega series I'm kicking off shortly. Each episode will detail a real-world scenario that requires a particular solution using amateur radio. Stay tuned.
Yes please continue this great work and a crossbanding video coming from you would be amazing.
I love my FT8900R. Crossband repeat has been so handy for me that I picked up 2 TYT TH-UV8000D Handhelds. Those HT's also crossband repeat. Easy to cast a sinker over a branch way up there and drag an HT up for quick low power repeater.
This is the second time that someone has mentioned the TYT TH-UV8000D since this video was published. Glad to get a second data point. I'll be picking up couple of these. Thanks for sharing.
Here's the video from the other viewer that put the TYT on my radar: th-cam.com/video/8s06ZzhXNvU/w-d-xo.html
@@TheTechPrepper they come already opened up if you catch my drift 👍
I have the yaesu as my base station. We configure it for use as a cross band repeater and have had great success. I had the tyt as a mobile rig. It worked flawlessly for about 18 months and then quit. I have only used them in phone mode so I’m just now exploring the digital side of the hobby. I can’t speak to the tyt’s abilities in that area. Going to keep an eye out for your man pack for the 8900. If it’s a success and you move on to the admin pouch as well, make it pancake open. I hate digging through a bag that won’t open fully…., even if it’s just 8” deep.
Love your channel. Always excited to see the next video come out.
The repeater i use is not accessible w my HT’s so the boost mode doesn’t apply to me, but I think it would have some merit for anyone within ear shot with an HT if understand the application correctly.
Thanks for your videos. Keep it up!
I've read similar stories about the TYT TH-9800 taking a dump pretty quickly. Sorry to hear that it died prematurely. I appreciate you sharing your experience. It might help others that are reading the comments.
This why I typically stick to the Japanese radios even if I need to buy them on the secondary market. It's too bad considering that FT-8800/8900 are discontinued. Thanks for the suggestion on the bag design. I appreciate the support! 73's
GMan, perfect solution. Add a solar pannel and you have a long term bomb proof solution to rough terrain comms
I always have a solar charge controller (Buddipole PowerMini) and 20w folding panel with me in the ruck. I need to break it out in the next video. The next video is on the FT-818ND manpack. That build actually has the Buddipole PowermMini permanently mounted inside the manpack. That's my go-to backcountry and SOTA radio.
One thing to add is to check your local band plans for cross band operation. Here in Tennessee, we're governored by the Southeastern Repeater Association (SERA).
In the 440 MHz band, there's a very small allocation of frequencies for cross band operations. That means to operate on cross band, one has to be in that specific range of UHF frequencies to do it legally. One doesn't need to put a random UHF frequency just to cross band repeat. That has the potential to cause harmful interference without knowing and can get into trouble.
Depending upon the UHF frequency and the radio, let's use Baofeng for an example, one can receive interference while in that spectrum of UHF from radio broadcast stations. To stop that interference, put a Tone in the cross band frequency and into the radio that's set up for a cross band repeater. Without a Tone, the interference could potentially come across on the Repeater side and everyone will hear it.
Last thing to add, if one is cross banding into a VHF Repeater, let the Repeater drop before transmitting again. One would cut themselves off and no one would hear the last transmission. I've done that a few times and speaking from experience.
I think that covers my two cents. Don't mean to steal your thunder, but I imagine you'll bring a lot of what I covered in the next few videos about cross band operation. I'll show myself out.
73, W4ISB
Mike in Tennessee.
Hey, this is what the comment section is all about. I appreciate you sharing your experience. Others will find this useful.
I'll go into more detail when I do the video on half-duplex x-band repeat on how to select an uplink frequency. I wanted to keep this high-level with out losing the new guys on the channel.
Take care and 73's
I was not aware of the 8900’s features. Now I’m going to have to find one. Damn you.
I've received comments along these lines few times. I failed to mention the "Hyper Memory" feature on this radio. It has 6 quick-access keys that saves the full state of the dual-VFO's including power settings. I can actually have 6 different x-band configurations if I wanted. Typically, I have about 3 crossband hyper memories and reserve the others for doing a combination of voice+digital or voice+voice (2m calling + local repeater). My work here is done. Happy hunting!
Yes. I would also like to request a cross band radio video. This was a very informative video. Thanks!
I just bought a used FT-8900R off of Ebay. Going to order the rest of parts off the list you provided. Looking forward to getting this setup! I am not sure if there has been enough interest in a cross band radio video.I would like to request a video on this topic. Thanks!
I have this radio and would definitely like to see a video about Transmit Boost Mode!!!! Please do it!
You got it. I appreciate you letting me know. The Kenwood radios support that feature by default, but the Yaesu's require a small configuration hack. Have a good one!
I love the 8800. It's 70CM/2M only but Crossbands. Knobs are fragile fyi but I've had mine in all weather in vehicle etc
Great vid, I've had the TYT version for several years. It's been a great rig for me. Never thought about digital and phone off the rig but its a great concept. I have TYT UV-8000E HT's as well and they also do cross-band and in emergencies they can operate on GMRS, MURS and FRS up to 10w (in reality max about 8w). The HT' work well in a "drop and go" box to extend range.
I don't believe the TYT has a port for Packet Data (Digital modes)
@@imh116 thanks, I'll verify when I get home but I think you are correct. I dont remember it having a packet radio terminal node controller. I think it has a USB programming port instead.
Please let me know if it has a data port. I'd have to pass if it does not. It sounds like the TH-9800 can transmit out of band without a MARS/CAP mod?
@@TheTechPrepper Pretty certain the tyt-9800 data port is for programming only. I own one and love it for phone. I think you'd have to rig up a signal-link to do pkt. 73's, K5MWA.
@@TheTechPrepper I apologize for the delay. Ended up on a field exercise and couldn't get back online until the holiday. The TYT only has a usb mini-a port for programming. No data port like the Yeasu has.
Great radio and I bought it for the crossband repeater feature, but love it for the 6 quick memory buttons. It is a shame Yaesu discontinued it. This is my main shack/event radio. I use it with a signalink and raspberry pi for NBEMS comms. Same interface cable that most Yaesu's use, such as the 817/818, 857, etc.
The Hyper Memory is a bonus feature. I have all six configured for different applications. It's super simple to set in the field, too. Just a long press. This is my goto rig for our NBEMS exercises as I can handle both digital and voice concurrently. Glad to hear that you're having success with the same setup.
Another great video. Please do a video on the cross-band repeater setup. Thanks!
Will do. I try to find a time to squeeze it in.
Have been using crossband for several years. The midland TM-V71A works Great on crossband.
I failed to mention the Kenwood TM-V71A in this video, but should have. I have that on my list of radios to buy so that I can build a comparable manpack. I have a suspicion that it will be discontinued very soon. Don't sell it.
@@TheTechPrepper yes it is discontinued. So is the APRS Kenwood you used to have. I recently replaced the cracked bezel on my TM-V71A. Bought it over 10 years ago when I made tech. Been trying to play catch up with your videos and wondered why the 710G didn't make the cut. I think I remember hearing you could use the 710 head on a V71A body. Don't quote me on that!
Really enjoying your videos...thanks!
73,
Brett K5WXP
The TYT 9800 is currently on sale for $176 on Amazon. Mine will be here tomorrow. I figure it’s a stop gap to get me by until I can find a proper Yaesu rig while getting some of my comm plans moving forward with the ability to test the plans in the field.
Enjoy your 9800. Thanks for the heads up.
Another good one Gaston. Cross Banding is a great feature, if you can figure it out.
Thanks. It can be challenging. There are some nuances in order to do it correctly. I'll cover a detailed how-to on the set up soon. The uplink side has a bunch of critical configurations especially if you're crossbanding into a repeater.
Thanks for the perfecal tips. I'm saving up my ducketts to buy a FTM-200R, this would be a great impromptu repeater. Thanks for sharing.
You're welcome. The FTM-200 is a nice rig. Enjoy!
I don't think the 200 does crossband repeat... It's only a single radio with Dual Watch. The 300 can do it, but it's gotten quite expensive.
Love the Man-Pack to vehicle crossover, what are the options for using vehicle power &/or charging the battery at the same time.
I agree, that is a sell point for me. Dual or triple functionality.
The charging is a bonus.
Maybe your vehicle 12v system is noisy.
Great video Gaston!
I got to watch it on release day too 🤣
I have passed up on the 8900 several times.
Now I think I need to get that for the bag!
I was going to ask about the DigiRig mount. Your setup is awesome!
Now you know not to pass it up again! The FT-8800 is basically the same radio. It's just a 2m/440 dual band rig. I plan to to see what 6m FM can do between my 8900 and VX-6. Thanks for the double views! Let's get these numbers up.
Good vid. Would be cool to see a crossband demo. Also, can't wait to see the custom TTP pouch for this rig.
Thanks, Dennis. I plan to do a demo for both the full duplex and half duplex x-band repeat when I do the follow-up video. I kept this one high-level due to time constraints. I appreciate the view. The new bag prototype is coming together. There will be a video showcasing the bag before it goes to manufacturing. 73
I have that knock-off (UV 9800 plus), which I got specifically for the xbanding. The quality is meh on it, but it does work (on 10 watts) and it did solve some issues that you specifically address in the video. But, there's a major legality issue which would be solved if again if the others would get their tech license. It's why I keep it off for the time being unless there is a power outage. I may swap it out with it's HT equivelent but I haven't tested it with 8 watts yet to see if the two watts less makes makes a difference. I don't think there will, but things have surprised me in the past.
Thanks for your sharing your experience with the 9800. I have read the reviews and they seem to be really mixed. Some people have nothing but issues while others have a decent experience. I am still on the fence myself. Have you tried using the data port yet?
Only for programming since I haven't really experimented with anything else with it due to focusing on the xband capabilities with. I was able to xband some data through it with flmsg with okay results.
Excellent and very useful!!!
Glad it was helpful!
8900 seems like a good radio to source as a first *serious* non-HT since it can be set for radio AND digital. I had a look and I can get hold of a 8900r for less than £300
If you are into VHF/UHF FM, it's are great rig. There are newer radios, but I tend to prefer these older radios for their simplicity. I picked up mine for $350.00 USD on eBay. I payed a little more as it came complete in box with the manual. Good luck finding one!
I'm playing with a TYT-TH-9800 as well. I'm almost done making up an Easy Digi interface specific to the radio that will have to connect through the mic port as the TH-9800 doesn't have a digital in capability. Not as nice as the Yaesu but it should get the job done. KD9RJX
It's unfortunate that the TYT-9800 was not a 100% clone right down to the 6-pin MiniDIN for the data port. This is how the interface works for the FT-2980R. It stinks that you need yo cannibalize the mic connector and speaker jack to run digital modes. Good luck with your cable build. 73's
?Can you get into details on how you set the Digirig and APRS using the FT-8900? Excellent video!
There is only one setting. Set the baud rate to 1200 under the settings on the 8900.
I'd be interested in seeing the steps to set up cross repeat. Actually, I'm interested in whatever you're offering.
Sounds good. I'll make this video as soon as I can. Glad to hear that you are up for anything. Cheers!
Very informative video,
I Have The 8900r- much under utilised in my set up- but good to know all this information - it’s a Keeper for sure.
M7PBX.
Glad to hear it. Enjoy exploring some of these features.
Hi there. Many thanks for you videos. I will send you an email re the Excel spreadsheet on setting up Transmit Boost mode for the 8900r. 73s ZL3NLA
So awesome. Can’t wait for the next episode. 👍👍
Glad to hear it. It's on the FT-818ND. We'll have solar charging capabilities on that rig and...HF!
Had the Yaesu 8900 in a mobile application and hated the radio for that because of all the knobs and small screen were hard to use in a rough riding truck. I packed the radio away and forgot about it, maybe time to pull the radio out and rethink its application. Or Ill sell it since discontinued Yaesu radios seem to hold there value.
Sell it! You'll make a killing. I agree. I do not like this radio for vehicle operations. Personally, I have found the Kenwood D710 to be my go-to mobile rig for the vehicles. It's easy to use while driving. Which rig do you prefer to the vehicle?
@@TheTechPrepper I'm a Yaesu guy, I ended up getting the FTM-400. I like the dual watch and the 400 has much larger display with visual representation of volume level on the screen when you turned the knobs.
I would like to buy it if you are it. I hope we can work something out.
@@ronaldlwilliams6839 I won't ship, local cash only in Denver Colorado. If you really like the Yaesu FT-9800 capabilities and design you might want to look at the clone version. TYT brand TH-9800 is a clone of the Yaesu and still readily available for half the price. Reviews are a bit spotty with some complaints of weak finals.
@@mrbyamile6973 No problem. I was just curious. Thanks for the prompted response. Have a great weekend!
Could you do a detailed video on differential power sources for man packs, with recharging set ups
That is coming in the next video. I do a lot of work operating in the backcountry and I field charge everything off solar. Yes, I will share my setup. It works with the FT-8900 and FT-6000R manpacks.
Great radio and great use of the radio!
It sure is!
hi, i don't believe that full duplex is possible because duplex need "cavities" (for rx/tx isolation) which are not tiny at those frequencies.. also why not to do some holes in the end of your bag for ventilation (and exhaust the heat in the air).. what i love it the idea of autonomy with a minimum of gear in your videos.. i dream of the field way of communication, hope it one day!! ❤
Nice radio. I really like that setup.
Thank you. It's a VHF/UHF Swiss Army Knife.
I suspect thea building a "radio system" such as you are describing follows a plan. In my builds I develop a detailed "Mission Statement". From that statement I decide what equipment will meet the specifications of the mission statement. Without the statement it becomes too easy to be distracted by bells , whistles and gongs that sound good but do nothing for the mission. I built a communications trailer using this concept N6JAI
I could not agree with you more. Each manpack that I build has a specific purpose and set of applications in mind. I actually have three different manpacks that are designed to handle different operating scenarios. Glad to see that you share a similar point of view on radio systems. Pick the right tool for the job at hand. 73.
Unless you have a need for 6 and 10 meters, why not go with the Yaesu FTM 300 ? It offers cross band repeat with the ability to use the Fusion Digital in both UHF or VHF at the same time. In SHTF, you not only have the ability to operate in analog, but also digital. With OPSEC being so important, you will eliminate 95%+ of the people who can understand your transmission. It also has great APRS built in. Trying to find a good used radio is not always easy. To me, it makes far more sense to go with the Yaesu FTM 300. Of course in order for the other person to take advantage of the digital, both must have Fusion radios. The newer radios also offer better cooling. Lastly, if you are needing as much power as you can possibly get, the FTM 300 is 50 watts on both 2 meters and 70 CM and you can adjust the power level for each band independent of the other. Many other great features not offered by the older radio. Just my 2 cents.
I do not have any experience with the FTM-300, so I can't comment. However, when I looked at it, I passed because of the form factor of the head unit. I agree that any digital mode like DMR, C4FM or DStar will limited those who can listen to you (i.e. the Baofeng UV-5R army). For me personally, I have the ability if need to to run end-to-end encryption through the DigiRig using some custom software (EmComm Tools) that I wrote for myself and my group if there's ever a need.
@@TheTechPrepper True, the head is bigger than the body of the radio. It's necessary to have the screen that allows you to do text without the need for another devise with a keyboard. I'm a bit longer in the tooth than you and will not be out humping it for miles. So a radio like the FTM 300 is perfect for me. I'll let you kids (lol) get out in the field. If I can't drive and walk less than a mile, I'd have to really need to get there before find the need for a man pack. I enjoy your videos. Well thought out and lots of food for thought.
Great video and content as usual, very much looking forward to your HF video as I'm looking for a new POTA setup and possibly starting SOTA. Keep up the great work. KO4LLB
I have a ton of SOTA videos already on the FT-818ND. Search "SOTA" or "Summits on the Air" on my channel page. The FT-818ND manpack was the first manpack build. It's gone through three iterations over the last 18 months. Enjoy.
I got an email from Digirig. They are going to make cabling for the FT-2980 before the end of the year. That should work with other Y mobiles with the same mike pin setup.
Congrats on your DigiRig. I was the original tester of the FT-2980R. It works great. The original prototype had too short of a Y connection, but Denis is fixing that now. Here's a picture I posted a couple weeks back. instagram.com/p/CiX2C_prcTg/
@@TheTechPrepper Do not have it yet. Ordered it last night!
What a pity that these radios are almost impossible to find here in Brazil, and when you find something similar, it is very expensive, we have to adapt
機能性とカッコよさを兼ね備えた!欲しい!
Great job with the rig and the videos!!!
I have a question, why did you prefer this over the TUT 9800?
I'm not a fan of Chinese radios due to their poor build quality and buggy software. The TYT is a knockoff except for the digital port. You can't do digital modes easily with that port.
I don’t think you’re setting up crossbanding quite right. The scenario you set up first has the two parties use different HTs. One is on UHF, while the other is VHF only.
What you want is to set up all HTs transmit on UHFand receive on VHF. Set the crossbanding mobile to receive on UHF and simultaneously rebroadcast on VHF. This way all the transceivers in your group can be set up uniformly.
As usual, really thankful and enjoyed the content. You've got me thinking through building out a manpack. I have limited equipment (a DB mobile and a few HTs) and want to utilize what I have since buying/building a whole new kit is out of budget for me. Luckily Armoloq makes a pack frame for my mobile unit (Anytone 578). I was wondering if you had any advice on how and what to think through on determining what someone would want/need in a manpack, capability wise. I know that it's individual to each person's needs, but I'm struggling to figure out how to determine what those needs might be or should consider. Thank you!
This is a great question. It absolutely depends on what you want to do. I will try to touch on this topic on my next video as there are so many bands and modes of operation. I will be covering the Yaesu FT-818ND which is an all-band and all-mode rig. It's basically a Swiss Army Knife, but you lose some capabilities such output power, dual VFO and crossband repeater. There is no perfect radio for all application. Think about who you want to contact and make decisions around the best form communication for that application. Good luck with your build.
@@TheTechPrepper so would you say this is the perfect overall radio? To give you basic everything all band and digital too?
@@paulNC It's a toss up between this one (the FT-818ND) and the next one (the FT-857D) I am going to cover. I will be comparing them in the next video. They have the same all-band, all-mode capabilities. The only difference is size and power. If you're on foot, the 818 is the way to go. If you have a vehicle or a base of operation, the 857 is the way to go.
@@paulNC It's a toss up between this one (the FT-818ND) and the next one (the FT-857D) I am going to cover. I will be comparing them in the next video. They have the same all-band, all-mode capabilities. The only difference is size and power. If you're on foot, the 818 is the way to go. If you have a vehicle or a base of operation, the 857 is the way to go.
@thetechprepper Great video and I will be setting up one of my 8900s in just this way. I recall a video where you showed the the man pack bag with a rear vent but I'm not seeing that on the Helikon-Tek E&E Pouch. Can you point me to that pouch?
It's a custom bag that I designed called the TTP Manpack, but I'm no longer able to manufacture any more this year. The final batch sold out last week: shop.thetechprepper.com
So glad I found your channel, like John Snow, I know nothing. I'd love to see your vehicle related stuff as well. What antenna do you recommend for a fender mount?
Welcome to the channel. If you search my channel video page for "jeep" you'll find a bunch of vehicle videos. I've never done a fender install, but start your research with the Diamond K400 series of mounts. Good luck!
A day early! I've been waiting for this video as I own three 8800s. Great radio. Cross band repeat is pretty simple but I am interested in the transmit boost mode. Looking at the image on your video it appears you're only using the cross band to repeat your HT simplex signal to the 8900 it then talks with the main repeater. Then your HT is then receiving the main repeater signal thus eliminating the need for the 8900 to send and receive. RIght? If so, great use of the 8900. Thanks for your time and efforts to make these videos.
The FT-8800 is a great rig. Almost all the guys in our county's emcomm group have at least one 8800. You are correct. Transmit boost just transmits in one direction. In the photo, I was boosting the signal to a 440MHz repeater. My HT can hear the repeater in the house fine. I'll make a video after this series is over on transmit boost. The solution to prevent transmission coming back to the HT from the 8800/8900 is a pretty neat hack that employs setting the dial frequency in special way along with setting the offset in the opposite direction.
I'm almost positive that on the yaesu rigs that you have, you can get into a service menu on them and adjust their power output settings for the 3 or 4 that they do have.
I am pretty sure that you are correct. I know how to get into the service menu on my other rigs, but have not come across the key sequence to access the service menu on the 6000.
@@TheTechPrepper Rgr that, love the videos, keep up the good work
GREAT stuff, as usual. Can anyone please explain the difference between the Yaesu FT-8900 and the 8900R? I see both on ebay.
The "R" is used for the US market.
These vids rock
Glad you like them. Take it easy! This one was rushed. Apologies about the lighting and the dogs barking. I had 30 minutes before I had to start work.
Hi Gaston, can you share a link to that spreadsheet showing the Transmit Boost? I am interested in diving deeper into that. Thanks, Matt, KG8TRS
Sure. Shoot me an email. I'm on QRZ. 73 de KT7RUN
What cable are you using for the DigiRig? I have the Clone radio TYT-TH9800 and the data port is a usb port... you don't have the cabe listed in the comments and I don't see a cable on Gigi rigs site that would be rca to usb...
That is pretty cool. As a beginner I'm about 10 years away from anything like that. 🤔 Can I hook up my Vic 20 to that thing?
Haha. It is technically possible. You just need to get your hands dirty and write some custom code for the integration
Hi Tech Prepper, can you provide everything that is connected to this pack...please
How about that cross band repeater episode you mentioned KT1RUN?
I will be covering it in my "No Random Contacts" series. I have a pipeline of videos and this is one of them. It will be out before the end of the year.
I'm looking at the Yaesu 8900 and the TYT TH-9800 which looks virtually identical. Looks like the data port on the Yaesu is a din connector and works with digirig mobile. The port on the TYT 9800 is a mini USB, does that also work for data with digirig?
Short answer is I do not know what the USB port is used. It sounds like the TH-9800 is not a 100% clone in this case. You may want to check the manual on TH-9800 and see if mentions anything about packet operation or have a pin out diagram. If does not, then I would some that the 9800 users are out of luck. Second, the DigiRig Mobile has a limited set of pre-built cables and I know with confidence that there is no cable that uses USB to the radio side. If packet operation is supported, it sounds like it would have to be a question for the DigiRig Mobile creator. Sorry, I have no experience with the 9800.
Hi, im super interested to work out how to send the keyboard keyboard chat using two of these 8900 radios. I have one, i may get another, and or a 2980. I too got this radio for the crossband repeat option, allowing me to use the low power pmr radios and repeat it out further on vhf....... i was annoyed to see that the radio cannot do the 6.25 steps, but have found the 5 tuning steps to work perfectly well enough. I have a question for you though, when you do cross band repeat. does the fan stay on all the time? Mine turns the fan on the moment it transmits, and it never goes off again until power cycled, i have read this was an issue with the firmware, but dont know if they ever fixed it.
I love this radio, especially the ability to listen to air traffic, just listening to the local weather etc is great to confirm the conditions on the day and make sure eveything is working.
what kind of range does that signal stick get you?
Check out my videos on NBEMS for more info on keyboard to keyboard topics: th-cam.com/users/TheTechPreppersearch?query=nbems
I typically only crossbanding one way. We call it transmit boost. The fan turns off for me.
good stuff
Thanks!
Nice! Great info
Glad it was helpful!
Close the blind on the bright window, lighting solved
Affirmative. Thanks for the tip. I know nothing about filming or lighting. I'll try that next time. Cheers.
I'm looking into how id hook the digirig to the tyt. I got a pin out, might have to get a second mic and do some fabricate'n
it stinks that that TYT did make a 100% clone. It uses a USB cable instead of the 6-pin MiniDIN. I am not sure if it even handles data for digital modes. I would be interested to hear what you find. Good luck!
@@TheTechPrepper basically im going to add a 4 pole .35mm jack for ptt mic speaker n ground so itl plug right into the digirig. Unfortunately theres no speaker on the hand mic pin out so i gotta get wild. KD2YHI
Any luck with digital on the tyt9800?
Do you have a source for the Mobilinkd TNC3? They are sold out with no restock date. GREAT videos BTW.
Unfortunately, you will need to go directly to the mobilinkd site and hang tight until they are available. There may be some on eBay, but I have not personally checked. Good luck finding one. They are great from APRS and generic packet work.
The TYT TH9800 is a quad band too. Might be a little less expensive too.
It's still on unclear to me how the data port works on the TH-9800. It does not have the 6-pin Mini DIN connector like the FT-8800/8900.
@@TheTechPrepper I researched this radio at one point. If I remember correctly, you'd have to make a cable to interface through the mic port. I may be mis-remembering, but pretty sure that's the case.
@@triggerhappy19832007 My understanding as well. I just contacted Radiooddity and they said only through the mic. It looks like Signalink has an option for the TH-9800 via the microphone jack. (full unit SLUSBRJ1; module SLMODR1Y) I bet Digirig can suggest or make a cable off the module schematic.
If that's the case, I think there is more then one mike input, could you input the digirig in one and the mike in the other
Does the 8900 auto-identify or have DTMF control when crossbanding?
Another solid video! I may have missed it, but do you have a planned use for the 6 meter or 10 meter capabilities? Voice? Digital? Keep up the good work, but don't feel obligated to do it on your vacation! 😁
I only plan to run 6m FM. I can run 6m FM on the 8900 and my fleet of VX-6R handhelds. My goal is to run some tests locally to see effective range and performance. I established some good benchmarks during my VX-6R series, so I can compare how it stacks up to 2m FM. Do you think there would be interest in a 6m FM video?
@@TheTechPrepper I'm just starting to explore 6m, so selfishly my answer is yes. However, I'm sure there's wider interest in a crossband video, which would be great too. Thanks Gaston!
Dude, really love your work. I'm learning a ton, super inspiring, love your "get out and test in the dirt/heat/cold" approach. Question about NVIS: would this be a semi-reliable way to communicate between 2 camps separated by a mountain, i.e. instead of a repeater? Or is NVIS more of a "talk to random contacts wherever your signal gets bounced to" kind of thing? I'm contemplating a WRoL situation where running a repeater might attract more "attention" than I'd like. Is NVIS consistent enough for these 2 camps (separated by say a couple of "as the crow flies" miles) to stay connected? Would they be able to stay in constant contact like they would if they were in line of sight on VHF? Or would it be pretty unreliable? Like you I'm gonna get out and test but I'm just wondering what's possible. Thanks!
Glad you're enjoying the content, Robert. This is a great question. I will actually by covering NVIS in an upcoming series. NVIS is a good from about 30 to 300 miles and is an incredible method of communication for local and regional communication with out any infrastructure. It does not matter if there are obstructions like mountains in the way. I have had issues making really close contacts on 40m using my NVIS antennas. However, 75m/80m NVIS has worked a lot better especially at the closer distances. I have a campaign that I am starting when I do this series with the tagline: "NO RANDOM CONTACTS". The military relies on heavily on NVIS.
Here's a video that I made on NVIS: th-cam.com/video/-pKLZCuWZY4/w-d-xo.html
Did you ever get a chance to try the TYT 9800 plus?
Gaston, I sent you an email. I have 2 of the TYT-TH-9800's, one portable, one used as a base. I'd be willing to loan one to you for you to evaluate against the 8900. I'd like to know if it can use a Dgirig or not. Can't find any documentation one way or the other.
Morning, Gene. Thanks for following up. I really appreciate the offer, but can't take you up on the offer until next year. Sadly, I am overwhelmed with all the projects, videos and day job. The comments and mail bag have exploded over the last two months and can't seem to keep up. I am not complaining, but you guys are keeping me busy. ;-)
My only concern about the TYT-9800 is that they did make a 100% clone as they did not include the standard 6-pin MiniDIN data port like the FT-8800/8900. It looks like this clone uses a USB port. I fear that it may just be for programming, but I could be wrong.
Take care and thanks for the offer. Good luck with your 9800.
"Poor man's repeater", but not so poor to get a FT-8900, so I guess the definition of poor has gotten higher 😂 Wish I could find an 8900, or that Seth of Armoloq made a frame for the Kenwood TM-V71A. I have heard about using cross-band repeat in remote areas of California wildfire response, but I lack that capability right now.
Haha. Actually, it's a term we use in the tech industry. I meant "poor man's" more in the context that this is not a "real" repeater. It's like the MacGyver of repeaters. These older rigs seem to be more expensive now than when they were in active production.
I almost brought up the TM-V71A in this video. It's still in production and has the same capabilities. In fact, the V71A is nicer as it supports TX locking on either side of the radio. There's no need for the complicated hack I will show in my "transmit boost" video. I have a feeling this radio will end-of-lifed soon.
I've talked to Seth about making a set of TPA pack frames for the TM-V71A. We are both not in a position to pay close to $500 USD for that rig right now. I have the D710GA, but the form factor is not manpackable. He is open to new frames if you ship him your radio. It's a great way to get a free or discounted frame out of the arrangement. Send him a note.
Cheers.
@@TheTechPrepper I bought my TM-V71 a for exactly the reason you mentioned. Since my HT will usually receive just fine in the house but has trouble hitting the most active repeater in the area I can do a one way x band and get in just fine. If Seth would like me to take some measurements or possibly let him use mine as a model I'd be happy to help. These are great rigs and pretty popular. Shame they seem to have been discontinued and prices have gone nuts. wouldn't mind picking up another.
Quick question: I’m really wanting to get that man pack built around my yaesu 8900. With that, I need to be rigging up a tablet/lap top. I know the Toughbook is the recommended way to go. Is there any merit to a cheap Samsung tablet that will pack easier? Maybe even in a sleeve inside the man pack or between the man pack and auxiliary/battery pack?
Trying to take the cheap way out but maybe “buy once cry once” is the way to go here. I appreciate your “tools not toys” approach.
Thanks again.
I can only recommend what I use. Prior to the Toughbook I ran a Raspberry Pi 3B+. I destroyed three in the desert. The Toughbook has been handling the heat and Sonoran Desert for almost a year. The great thing about the CF-20 is that it coverts to a tablet. The screen detaches from the keyboard. The touch screen works with gloves, sweat and full sun.
What are the thoughts on the wouxon uv-kg980p?
I have an Icom 2730A I've been thinking about setting up for a portable cross band repeater. It receives at 1.2A and transmits at 13A (I know its not the most efficient) so In cross band repeat mode will it draw a constant 13A or only when Transmitting? The Duty cycle statement confused me.
It only transmits when you or the other station is transmitting. The rest of the time it is receiving. In full crossbanding it's transmitting both sides of the conversation between both parties. Sorry, I should have been more clear.
@@TheTechPrepper Thank you! That's what I thought but I figured I could easily be wrong!
TTP- Tactics, Techniques and Procedures/The Tech Prepper
Good one!
Ok, other than Amazon...is there a reliable HAM radio/accessory dealer?
Good customer service with good products?
Checkout Ham Radio Outlet and DX Engineering.
Up next, 818
Yes, the FT-818ND is up next. That was my first manpack. I've actually had the most time with the 818. Stay tuned.
What's your opinion on using a 2m/70cm amp powered by 13.8v DC along with an HT in this role? My daily EDC radio is a Yaesu FT-1DR already MARS modded and programmed the way I want. The built in APRS capability is a plus.
I was thinking of integrating this into a manpack setup along with my Xeigu G90. I see dual band amps come up for sale on QRZ fairly often for very reasonable prices, and it seems an economical way to achieve a lot of capability in a man pack, without a lot more money.
Figured I could power both the G90 and the amp off of the 18ah lithium polymer battery I already have. What pros/cons do you see for this sort of setup?
I can't really comment as I have never run that style of deployment. Personally, I find that I can make most contacts on an HT by moving to higher ground and with a better high gain antenna. APRS is great. I have the Mobilinkd TNC in my chest rig and have a cable for every radio. I just use the APRSDroid app or my own custom ARPS software when I use the laptop. I have considered an external amp, but mostly for my QRP manpack (FT-818). It's another component that can fail and I do not like that there is not an option on the market that covers HF/VHF/UHF. I'm sure others may have a different opinion about it.
Which adapter BNC Signal Stick would I need to use on the TYT 9800?
BNC, but be careful running the Signal Stick above 5 watts with this setup. To get the SWR down add ferrite beads to the jumper coax and add an RF ground. I have a video coming soon on this.
@@TheTechPrepper What antenna would you recommend for running the radio at higher wattage?
2 questions.
1- does this radio support encryption
2- can you use encryption when in cross band mode
Unfortunately, no for both. However, it is technically possible to use encryption when the radio is connected to a computer if you know what you are doing. I have been working on some custom software to do this, but it's not publicly available.
@@TheTechPrepper thanks for the info
Are there any good videos on how to program this radio?
I don't recall, but I'm sure there are. I just read the manual. It had everything that I needed.
Just curious new subscriber. Question could this maniacs setup talk to the baofang uv-5r ?
Welcome! Yes, you can use the Baofeng to talk to the FT-8800/8900 and use its crossband repeat capabilities. The nice thing about the UV-5R is that it supports dual watch, so if you configure the FT-8900 for "transmit boost", the UV-5R can listen on one band and transmit on the other. Good question.
@@TheTechPrepper awesome I was looking for a setup like this to run a squad size unit with a patrol base where the comes could be extended in two directions. Awesome content. Also the battery used is no longer available what would you suggest as an alternative to this battery. Keep up the great work
What radio in 2024 would you recommend that can do everything this radio can do?
I do not know of any quad band mobile rigs that are currently on the market. It seems that the industry has moved away from this.
@@TheTechPrepper I watched your viedeo on the AnyTone AT-D578. Your channel as encouraged me to get my licenses and do more than just GMRS. The Manpack idea is really what got me interested.
Did you do a video on the tyt 9800?
Nope. I do not own one. I'm curious how close of a clone the 9800 is to the 8900.
Nope. I do not own one. I'm curious how close of a clone the 9800 is to the 8900.
Плохо видно... на фоне окна.
How are you sending text?
Do You Guy's have this Kit for a Yeasu FT817?
Yes, there is an ARMOLOQ TPA pack frame for the FT-817/818. That was the first frame that they built and the first frame that I used. In fact, I am covering this in the next video.
Where do you get the batteries for the man pack radios?
I have a link in the description. They are from Bioenno. I've been running these for years and they're still going strong.
Will you be doing a DMR manpack episode?
That's a good idea, but it will have to be next year. I gave away my only DMR radio for the 10K subscriber giveaway. I'll have to research which DMR mobile radios are manpackable and meet my other manpack requirements. I'll likely start by looking at the Anytone line. What DMR radio are you running at the moment?
@@TheTechPrepper I have an AnyTone DMR HT currently but saw that rails are available for the AnyTone 578 mobile.
Where I can buy a Radio
This particular radio is discontinued. You can find them used on eBay, eHam and QRZ. Local hamfests are good place to look. Used prices are around $300 USD.
I have the tyt clone. Do you know if the digirig mobile works the same way with it. I’ve been trying to find a good way to set it up with digital
If it's an exact clone with a data port, it should work. I have no way of knowing without testing it. When funds free up, I'll try to buy a TYT-9800. Have you tested the crossband repeat on your unit?
@@TheTechPrepper I also have the TYT. Do you have a link for the Digirig cable? Can't find it anywhere. I'm using a UV-5R in the house with APRSDroid and the 9800 in crossband. Not the most efficient setup, but it works well.
I’ve programmed for crossband repeat but haven’t had the space or time to fully test it out.
Curious - any idea what the swr looks like on the signal stick?
I personally have not tested it as I do not have the equipment to test it while mounted on the frame. I did receive a report from a viewer that he was seeing < 2:1 on 2m/440 when running the setup. Apparently, the frames mounted to the radio chassis provide a usable ground plane.
Interesting stuff for sure
You're not kidding about being the "TECH" prepper...lol Don't get me wrong, this is very cool stuff, but let's be real too, this is waaaay above virtually everyone who's going to be in a prepper group. I mean it's like medical, everyone needs to know first aid, but if the doctor starts talking about performing even minor surgery, you'll lose 95% of the group, due to being too complex.
Como is the same way. I mean it's obvious YOU know this higher tech stuff, but really for a group, they need basic first aid, or basic commo so they can talk to Johnny 10 miles away on the next ranch over, not 10 counties or 10 states over. The need for a simple GMRS manpack radio is way more important to an average group, than something like this. I mean who's walking all over hells half acre on their ranch, and suddenly needs to talk to someone 100 miles away or more?
For us, I keep things designed very simple and for the least trained person around. Like a gen set, they know to first check oil and water, plug this plug in here, start up the gen set and wait three minutes for it to warm up, and then flip this switch....no magic, and very simple, and easy to put on a cheat sheet too.
This is just me, but I think you'd attract a lot more prepper types who are not hams, but preppers who are looking for someone who's very smart like yourself and can clearly show them basic comm's and even how to build a GMRS manpack radio that they can EASILY operate. Think, turn on radio, change channel, grab mic and talk. I mean have some simple GMRS builds, and use them as the gateway drug to more complex comm's like you're showing here in these videos.
There's A LOT of new preppers coming around, and they just want to talk to family members and close neighbors in an emergency, and nothing more.....right now anyway....lol
Look at NOTARUBICON, his channel. It's all GMRS and I have seen it grow like crazy, but sadly, he doesn't do prepper type videos either. He has good info, but he doesn't do builds like you're doing, and this is what people are looking for.
Again, you're doing a GREAT job, but a job geared more towards seasoned radio operators and ham's more than everyday Joe and Jane prepper, but what do I know, it's just a thought...lol Keep up the great work.
You make a ton of excellent points. This setup is very complicated especially when you layer on digital.
I need to make a video where I talk about the various communication systems used by a small community. The manpack is just one system designed for specific scenarios. It's not intended for the average user. It's really intended for the guy that handles comms for a group (i.e. RTO).
Personally, I have a fleet of MURS radios that have five channels for our local community. There is no front panel for programming so the user can only selects channels 1-5. You can hand these to anyone. I plan to move to some of the commercial radios that are more rugged and have encryption (EF Johnson). The goal is to make the operation simple for the user. Select the channel and press the push-to-talk button.
I have a custom digital platform (computer + software) that runs with a couple of manpacks. I have three of these and they are designed to be deployed at the front, middle and rear of our community. These are more communications hub with offline mapping and encrypted keyboard-to-keyboard chat over radio. These are designed to relay administrative traffic securely. Again, there would be 3 total operators that would just be trained on the software.
@@TheTechPrepper I'm really happy you understood what I was trying to get across. I was NOT trying to be mean or rude, and sometimes we write something meaning it one way, and the reader reads something TOTALLY different and takes offense. I will NEVER do that on anyone's channel.
With that said, we've been kicking around a small Midland 15 watt GMRS radio with a battery in the smallest footprint and lightest weight possible for a backpack or plate carrier. On my ranch, those small hand helds just don't cut, and while the 40 or 50 watt models are great, we also do not want to transmit all over hells half acre either, plus they're bigger and heavier, and require a bigger battery as well, and while not as important, but still a factor, is more cost.
Also, that signalstick antenna would be GREAT for something like this and I read on their website that it works okay for GMRS. Also, I read on Midlands site that they recommend the antenna be 60" or 5 feet away from anyone while transmitting. All these things would be nice to get a true understanding of from someone who knows. I'd love to see some real world testing of this antenna with GMRS. I mean it's a really tough antenna and made to survive rough outside hiking conditions.
The last thing that you said, was encryption. Now we know GMRS does not do that, but apparently some radio does, and that would be a natural next step so to speak for people wanting to go from learning just GMRS, to becoming a ham operator.
I agree with you about an RTO being the go to guy for this, but what happens if he's no longer able to do his job? I remember when we had PRC-77 radios with a VINSON. That was pretty easy to use, but then came SINGARS and man, without REAL training, you were lost. If our RTO was gone, we were a hurting unit, type one each, OD in color...lol
Again, this is just me coming from being in a prepper family since I was a kid in the early 70's, and four years active duty in the infantry with the 3/75th. I am NOT a pro at anything, except maybe making A LOT of mistakes, and I've learned the simpler it is, the better chance of success. It's scary, because failure seems to be more habit forming than succeeding, and it doesn't take long for a group to start fracturing when things start going south more than north. People love to hang around winners, but you really only learn REAL lessons when you're not. Like they say, lessons cost money and good one's cost LOTS. Keep up the great work.