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Transmit / Unlock Yaesu FT-70D - MARS MOD
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- เผยแพร่เมื่อ 19 ส.ค. 2024
- A quick and simple tutorial on how to unlock your Yaesu FT-70D to transmit out of band for emergency purposes or for CAP / MARS.
DO THIS AT YOUR OWN RISK. If you closely above the resistor we removed, I almost lost another resistor in the process...
REMEMBER: Back up your settings before doing this mod.
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What an awful way to treat a piece of treasured electronics, you run a very hug risk of fucking it up permanently. I am so disgusted I won't even tell you how to do it properly
Glad you liked the video!
Calm down Elmer. Even if someone fucks up a radio, they’re only a couple of hundred $ for a replacement. You can use the dead one for spare parts. You’ll need a key pad eventually cuz all yaesu pads wear off easily
lol i assume this is sarcasm
I took screw and ice picked it off Chinese radio rebranded works today
Boomer
Thank you so much for this! I'm a missionary in Nigeria and I inherited my FT-70D from an older gentlemen who passed away at our church. We use other radios to keep in touch with the local police and our security and I am so happy to now be able to use the frequency we are on with this radio. By far it has the best range of all the radios we use.
I did fully disassemble mine and used a heat gun and tweezers to remove it incase I ever need to re attach it.
Just performed this mod. Worked like a champ. Thank you!
Very considerate of Yaesu to provide a port & grommet in the back specifically to take out that resistor!
Great shame that Alinco aren't so co-operative with their radios 😕
I watched this video and done it exactly as described. A bit fiddly but I kept my fingures steady and done it using a small pencil soldering iron. Its not that hard but any way up,it makes perfect sense to make sure you know exactly what you are doing, as this mod is well....SMALL to say the least. But once done it worked perfectly. Over here in the UK, we do not have such family frequencies and such, but we do have PMR frequencies and that what I done it for. BUT if you are not sure, then DO NOT do it. Ask a fellow radio ham. Nice video bye the way....
Thanks for the input ! Cheers!
Thanks ! Got my braid in the mail today (Amazon) ... Followed your instructions ... took less than 5 minutes (and I'm clueless
when it comes to soldering and it was done. Booted up and put in my Call sign, went through the ridiculous AMDS software
instructions (remember, export originals codeplug to excel type ....... reloaded it (well .. twice, first time didn't work) ... and I'm
a happy camper. I have an openspot 3 .... this works beautifully linking in to wires x .... So much easier that my pi-star dmr ...
Thanks again.
Glad everything went well!
@@HAMRADIODUDEI have NO resistor on this place but radio is limited in range... Any ideas...
Just did mine. Used tiny screwdriver and pushed it off. Worked great
Without heating it?
@@meespiri9352 yes. Didn't have to apply hardly any pressure
Saw your video too. Thanks!
A most helpful video! You made it look easy enough that I might even try it!
Glad it was helpful!
If you can get your hands on a hot air station, set it to 400, give it a few seconds and use a pair of tweezers to pick the resistor right off. You can even put it back on if you want latter on.
Do you mean use hot air gun? You will hate the components around it and risk damaging the board. Stick to a solder iron
@@spacecoyote6646 - no, he said a hot air station. They’re a specialized tool for working on surface mount boards with a very fine point to deliver hot air. That’s pretty common for SMT reflow work.
i took a screw driver and scraped it like was no tomorrow works good. love the video.
Thank You much!
lmfao
Just did the mod. Used a hot knife to soften it up, came right off. Works fine!
If you do this, perform a "Reset All" when turning on the first time after the mod. See page 24 of the Advanced Manual.
If you already did this and you only transmit white noise, do the same Reset All.
When I do mods of this sort, I use a hotair rework station and a pair of tweezers. I am a Cellphone Motherboard Tech which why I have that kind of equipment. You can also use the Butane Soldering Iron. Just take off the tip to provide the hot air.
Great tips, thanks!
My butane soldering iron has a hot air tip. Also, I bought some ceramic tweezers from a vape shop. Makes easy work of jobs like this.
Like the video now I have to subscribe and go binge watch some of your videos after I eat pizza and pasta
On my first FT 70 D I had HRO perform the modification for me at the same time of purchase, later I researched it figured out how easy it was I came across a second FT 70 D radio for $100 and I decided to do it myself. I literally took a very small flat head screwdriver and snapped it off no problems took me less than a minute.
I'm going to do that on my next video, remove with a flat head..... I bet it'll be easier... Good deal on that radio too
So you just scraped it off without heating it up?
Parabellum yes.
I did the same with a screwdriver. Two radios took me 3 minutes tops. Works great on FRS channels ;)
@@HAMRADIODUDE You will remove the pads from the PCB, and make the change irreversible.
Not certain, but I would bet you would get more bass if that rubber grommet was out. It's likely there to help with water resistance and keep that IPX rating. Otherwise it feels like a genuine window Yaesu left for owners to say "you know you wanna"
If you do it incorrectly, your Yaesu will turn into a Baofeng.
I did mine 2 days ago just make sure you use artistic attic soldering iron.
You're right. I had a buddy correct me and in my ft3d video, I'm going to be sure to do it with a nice, fine tip. Thanks for the comment. How did it turn out?
I didn't bother with taking out rubber stopper out it was much easier just take the back cover off it was lot easier to work with and taking it out.
Thanks for sharing bro 😎 ! It is very helpful! I have this device
Happy to help!
For folks watching in the UK, "sodder" is a reference to solder.
Yes, sorry. In recent videos, I've worked hard to pronounce it correctly. Unfortunately, I have a bit of a weird way of speaking. Thanks for clarification for the folks who may not have got that
I was trying to work out what "sudder" was. Then I realised it was solder you were referring to!
yeah, unfortunately I have a lazy way of speaking. I try to correct it a lot.
@Schwalbe262 it's just a problem I have with certain words. I also don't pronounce words like "alley" correctly.
Yeah it always throws me for a look when people are talking about HF and they say haitch F. Guess we're even now.
Does this MOD widen the 70cm band for transmit as well? Looking for access to 462/467 for emergency use only. 76 (K6POW)
137-174 and 420-470, you should be good.. 73
New to this radio stuff. What is the purpose of this modification? Is it to add MURS or GMRS? Thanks in advance.
It is! Good luck!
Thank you!!!
Done!! Thank you!!
I've bought a second hand radio that has one of the pads completely torn out. It seems that the resistor was simply removed with a screwdriver. How can I remove the unwanted bands?
Hi ! Thank for video ! My Yaesu FT70D (japan version) not unlocking for this method . Elenent R1300 (lp1001) for shematic was not installed from the factory on a new transceiver.
Interesting! Thank you for the information.
Umm looks like you just let the resistor floating around inside the radio. all it takes is for that resistor to get lodged somewhere on surface mount components and short something.
best way to do this is use the finest tip solder iron you have. use a good amount of flux and rest the tip in the middle of the resistor. when the resistor gets got enough it will float off and stick to the solder tip. Do Not just flick it off with a screw driver. Sometimes these pads are also connected to other components and can cause failure when they are just ripped off.
But I do have a question for you Ham radio dude. how is the TX audio on this HT the receiver as well?
Thank you for sharing BTW
Thanks. I know better, just didn't realize it was in there. I will redeem myself with a part 2 on the FT3D and the right equipment for the job. I have no complaints with this radio and receiver sensitivity. Sounds great through the 700mw speaker. It's loud enough for me to hear it and it doesn't sound overmodulated. I can try to get some audio recorded from it. Thanks for commenting. Recommendations on a good soldering Station? I know most people like hakko?
@@HAMRADIODUDE I paid 50$ if my memory serves me right for a 937d+ it usually comes with a pack a multiple size and style tips.. perfect for surface mount PCB. this station has lasted me 6 years so far. And I am looking as of now they are only 35$.
Just wanted to give you an update regarding the FT3D. I did the mod on it today, and unfortunately I thought I was recording, but I wasn't. Anyway, a few things I observed: 1. Using a magnifying class is WAY helpful. 2. Using a soldering tip that is fine point is nice, but 3. using a Rework was the simplest. I heated it up, being careful of where the heat was pointing, then removed it with a small tweezers. I do wish it was on video, but maybe I'll just have to go buy another radio :D.. Thanks again for the suggestions.
Just done it, no sign of a resistor, just seems to be a solder Bridge?
In the video, it's super small, but I think you can see it. It could be possible though, that it was just a bridge.
If you've just purchased the radio and are studying for the license ... can you use the radio without entering a call sign? thanks
You can bypass the Callsign input, but still you should not transmit
I have the yaesu ft70dr would you be willing to open it up if I send it to you
Oh to do the mod?
If you're anywhere near Northern Illinois, we can arrange a time to bring it by and do it.
Great video, HR Dude. Thanks! 73! ...WI9RHC.
Good job
That's. In hindsight, I'd use a fine tip on the iron 🤣
If I have technician license, will this mod be legal to do? Will I be able to listen marine frequencies after the mod?
I do it to talk on the leased ch's at work because they use junk radios that always mess up but my yaesu dont
Some companies who sell these radios will do the Mars cap mod for you for a modest fee about $35.
Do you know if there is a way to make it transmit on the air band? I am a commercial pilot and that would make it much more useful to me. Also, will this mod void the warranty? Thanks
I'd assume it's not possible for legal reasons as well as Air Band Transmits on VHF AM and this radio doesn't have an AM transmitter. Best of luck.
Yaesu makes two aircraft band handy Takies. One of them can even receive the VOR info.
Yaesu makes excellent Airband Transceivers as well. The best one out there is the FTA 850L.
does this mode allow to talk in pmr446 freqencies?
I'd assume so. this unlocks the radio to transmit on 137-174 mhz and 420-470 mhz. Cheers.
Ah yes, the ole “hiking” scenario every ham radio guy speaks of when performing a MARS/CAP mod. Every transmit expansion mod I’ve researched, the author of the article/video always mentions “hiking” and the need to have the capability to transmit out of band in an emergency.
Have you ever been to a ham fest? Been to one lately? Ain’t none of them fellas doing any hiking!
Seriously though, good video even though I don’t have a need to perform it. I’m just curious about radio mods in general even if I don’t need them.
What are you implying? Is it then going to be only criminal gangs doing this mod, and then transmitting on illegal frequencies as a challenge to civil society? ;-)
Please explain why to disclose the 70DR if it has already been disclosed?
Well, I made this video 2 years ago......
Have you checked for harmonics after the modification in spectrum analyser for spurious emition or spikes ? Please reply
I commented regarding the wrong video. I have checked it for the 2m band and 70cm band. No problems there. I can test further if needed
Failed to communicate with the radio: Radio did not ack block 1 (CHIRP) after the mod, any clue how to fix that?
Can you confirm with the actual Yaesu software if it reads? Additionally, Chirp instructions are possibly incorrect (I am not a developer, so I don't know). The battery, according to Yaesu's instructions should stay out during the programming process. If I read it correctly. Anyway, I wonder if the yaesu software works? - www.yaesu.com/downloadFile.cfm?FileID=13328&FileCatID=42&FileName=FT%2D70D%5FADMS%2D10%5FEXP.zip&FileContentType=application%2Fx%2Dzip%2Dcompressed
Will this also unlock transmit on marine bands?
Audio sync ... Wahhhh
Took out the tiny resistor with screw driver. But, still it did not work. Shall I remove all soldering remains?
You should be good as long as both contacts/solder joints aren't touching.
Finally did it.. Thank you so much
Just curious, what exactly does the MARs Mod do to this Radio, does it add to the air band AM receive 108-136 or any other am receive frequencies?
Hello. The mars mods opens the radio to transmit on 140-174mhz and 420-470 mhz (FM). As far as I know, it doesn't add any additional AM Air Band receives. Best wishes.
adds murs and grms, sweet mod, looking at 70s now😁😁😁😁😁😁😁😁😁😁
mys work fine i did the same thing and it work fine....
Thanks!
If I Mars mod the ft 70dr, will that open up shortwave bands?
It will not. It will open up the ranges 137-174 and 420-470mhz. Good Luck.
Shame it's only to 470 and not 480
Okay I am new, what does this MARS mod do exactly, what are the advantages of it?
Gives you the ability to transmit outside of amateur bands. Most people are only interested in GMRS, MURS, and marine bands. But depending on radio brand it will will usually open up transmit from 137-174 on VHF and 400-520 on UHF. Most all brands are the same on the vhf side, but they vary on UHF such as some are 420-470, 400-470, 400-500, it just depends. I think my Icom 2730 does 400-480.
Have you discovered the mod for the FTM-300 yet?
I have, but I don't have a 300. Do you need the mod?
Does this give you CB bands?
It only goes up to 470mhz if you're speaking of Australian UHF cb, so probably not. If you're talking US CB, definitely not
im interested in the marines bands for emergency safety purposes only :) will this mod work ? thanks guys
Did anyone else's radio stop working with Chirp after the mod?
Mine is fine
@@HAMRADIODUDE hmmm
Any ideas?
Not at that moment, but on Monday, I'll be happy to double check
@@HAMRADIODUDE sounds good. By the way. The Yaesu software still works?
@@HAMRADIODUDE chirp for me now only reads memory. any idea how could i fix that
Hi thar whot extra frq will it give you to use
I don't have the radio on me at the moment, but I believe - 140.000 - 174.000 MHz and 420.000 - 470.000 MHz
I think I happen to fly another SMD xD
Does it void the warranty?
Most definitely
What is the new transmit bandwidth?
bfy.tw/SEWG
Tx out of band is a bad idea. Just ask Chris Boyer KC6UQG. You would be better off with a SPOT or InReach.
Any level headed adult would give up their rig to save a life. He got it back eventually with no charges.
Do you still need a MARS license?
I just checked and it appears that a license is still required
Thanks for checking.👍🏻
There is no such thing as a MARS license. MARS is a program you join to work with the military, kind of like the Coast Guard Auxiliary or the Civil Air Patrol, but focused on radio. Members must already be a licensed amateur but get a separate MARS callsign for official work. Members get assignments and do training that involves transmitting on non-Ham HF bands and are only authorized to do so when assigned to. They use their own HF radios, so they must be modified to be able to access any HF frequency. They do not use modified VHF radios. We just *call* any radio modified to transmit on expanded frequencies "MARS modded" for convenience.
Ham proponents argue that their $15 multiple choice test ensures that only those with serious interest in electronics and the furthering of the radio arts are allowed to participate in their exclusive, law-abiding club. When these very same proponents are handed a soldering iron they are suddenly forced to acknowledge the fact that memorizing a list of answers to 35 irrelevant questions which somebody wrote in the 1930s has not qualified them to perform even the simplest of operations on a piece of modern electronic hardware and they just resort to ham-handedly stabbing around until something falls off; unironically why it's called "ham radio" in the first place.
get over yourself
You should talk a little bit slower. Non English users will thank you.
I'll try
TH-cam Playback Speed setting is great for this. 1/2 Speed French I understand. Full speed... nope.
You should slow the feed down a step or two that way not all of us have to slow down to "your speed". Please educate yourself with Google if you don't know how to do that.