Ham Radio - DMR radio discussion How it works
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- เผยแพร่เมื่อ 13 ก.ค. 2024
- Just an overly simplified discussion on what DMR is and how it works. I hope you find this helpful.
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Hit me up on the echolink repeater down by my house: W9TE (Node: 519521) - วิทยาศาสตร์และเทคโนโลยี
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I know this is an older video but I just found it after buying a new dmr radio. Ive never had a dmr radio so this was good info for me to watch. Thanks for keeping your old videos up for people like me.
Glad it helped
Kevin, I just stumbled into the concept of DMR yesterday and have been reading up on it for hours... This video was VERY helpful. Thanks for making and posting it.
One of the best vids on DMR I have seen so far! Good job!
I'm watching as many DMR video as as I can to try to get an overview. This one covered a lot of material that almost everyone else mentioned, but no-one explained. I especially appreciated the tine slot explanation (best ever) and the talk group visualisation (also, best ever). 100% essential viewing - my thanks for your time and insights.
Finally someone who gives a good explanation about the operation of DMR.
Clear and in intelligible digital language.
Some that FINALLY explained it in a way I understand! So many videos talk like you're already familiar with DMR in the business band.
Thank you for a brief, easy to understand explanation of DMR. I have watched other channels, but I would give up. You do an excellent job of making complex ideas understandable. Now, I can decide whether I need one of these gadgets. At this point, I don’t feel a strong need, but I can make a more intelligent decision due to you.
I'm from Fort Wayne. I wonder if that's why I actually understand your video. I feel that I would not like DMR now. I go to radio to get away from computer stuff and I hate repeaters. Your video WAS helpful for sure. Thanks.
My first time on your channel -- great opening! love it..
This is the only video on DMR I've seen that I can actually understand.
Word
From stupidly staring at the radio to programming a codeplug in a couple of hours. Now, that’s cool-I don’t care who you are.
Says all
Great explanation, thanks. Now I see 2 problems: Dependency on Windows (I won't use) and internet, which may be non-existent in SHTF scenario.
Fantastic video, Kevin. It's been great seeing how fast DMR has been growing among the ham radio community. Videos like this certainly help spread the word about how awesome Digital Mobile Radio can be to play with. I've been making some videos about DMR, too!
Thanks again!
73 - K0LWC
Thank you very much for sharing your time and expertise. Best explanation I have come across.
Thanks for making this video. It is an excellent introduction to DMR
Very useful, .......... Will still have to watch a few times for it to fully sink in
Awesome video! Studying for my HAM license but already got my claws on a Btech DMR 6x2. In the meantime, I've programmed local fire/police analog frequencies (thnxs to the digital monitor feature) and assigned them to zones depending on their grouping. Looking forward to expanding into Digital.
Awesome. I have been googling "What is DMR?" for a few days now. All of a sudden "poof" this vid pops up on my youtube channel. I quickly subscribed to yours. Can't wait to see what else you can teach me. BTW I am a scanner hobbyist, learning about P25 Phase 2 on a Uniden BCD525p2. I had to download DMR/MotoTRBO to expand the scanners capability, not sure why, how it worked, if it helps. Thanks so much for this.
Kevin, a very good video. Nicely laid out with no fluff. You might want to include 2 things in your next version.. 1- The id of the radio that the operator must have before he can get on the air 2- A mentioning in passing of Brandmeister.
Enjoyed your video just got my radio last week still playing with it. it is different just putting in analog frequencies for now no DMR repeaters are around here. I own two analog repeaters here in Alabama. very helpful 73's
Helped me tons, thanks! I had programmed in RX groups but not assigned them to channels. Eureka!
Love this. It's to the point and very incredibly good.
The best welcome to DMR video i have watched. I wish i found this video when i first started on DMR
Great video. Simply explained to be easy enough to understand.
Appreciated the overview, thank you!
Watched a lot of DMR videos.....this was the best....thank
So Very Interesting I can not wait to pass my exam and be able to get involved with DMR thank u for the great explaination
Thank Kevin i'm new in DMR i just order the radioddity gd-77 and wait you're video help me to understand 73
Thank you for a Clear description
M3RPG
Thanks Kevin! Well done video. I tend to agree that putting the internet in the loop won't do well for emergency conditions where we expect the internet to either fail or be overloaded. 73, John
FINALLy, an explaination that i can understand digitally clear
GREAT TURORIAL. I love the introduction music and opening footage. I am also an video editor.
Thank you so much sir! you just made two more hams in my family
Very clear explanation. Thanks for posting
Good discussion. I've been a ham for a while, but I'll be honest, I'm lost with the proliferation of all the digital gadgetry that's burst onto the field. Your discussion helped a lot on DMR.
Very well done. Easy to understand.
Thanks for this very clear explanation, now I understand how it works.
I am looking into DMR but found it so confusing it was a bit off putting. However, this video explained in general terms the real basics of DMR very clearly giving me knowledge of the system I can start to build on. Some more research then I can just see myself getting yet another radio. Regards, Alan 2E0EUZ (UK)
Thanks for breaking it down. Reminds me of how the internet works mixed with analog repeaters.
Thanks Kevin. Your simplicity helped this old ham better understand what all the kids are doing….ha!
Dave K8WPE
Brilliant and clear. Thanks. You earned a sub.
Very clear explanation. Thank you.
Excellent, clear explanation.
Great tutorial !! Thanks for posting
Great video, good explanations
Thank you my headache has gone away and is clear. Just curious how you got to record your computer on video ..it looks very good thank you again
Thanks for presenting this in an easy to understand format - great job. I have enjoyed this, seen numerous videos on programming, but not one video on how to find communication, to both listen and talk, and how to leave communication so you are not holding something open and maybe preventing someone from making a connection. For example, how would I interface with the North American talk group? Thanks. Another video idea is setting up a custom scan, so you can listen safely in your car. Thanks again.
Many thanks. Just getting into it. Still waiting for ID. TYT UV 380 . Now have a good idea. No dmr repeaters near me. Intend to prog Zones for different parts of UK when traveling. Avoided Dstar as it had been shut down locally due to lack of use and spiralling costs. Thanks again Gw4gja
nice info, well explained might get one soon thx 73s
Educational. Thanks. Subscribed.
Awesome explanation
I think I am going to dive into this with that GD-77. Few questions, I checked repeaterbook, and did not see a way to download a route file for when I travel to FL for example, I would have program this manually? Can I send a short text to a friend that would move through the system and hold on his radio for him to see it at a later time?
Hi Kevin ,
Thank's for another full explanatory video. I like the coments from some of my local U.K guys." South Yorkshire ghost hunters." Just how true. I will not use one of those radios because it has one of these new fangled digital readouts. Get back in to your cave !. In all honesty though kevin, it takes all sorts to accept change. Please carry on the good work there. 73 de G0WXU - John.
I have the Baofeng DM-1801. The software looks exactly like what your using. I found the software to be exactly cosmetically as the GD-77. Is there a limit to the max amount of channels you can scan.
Is there a limit to how many items in a zone, scan, and GX Group ? Thanks Ken
It works well, as long you have no major issues with the Cbridge or Brandmeister central server or the network it's connected to.
Great explanation. BUT, do you have to be connected to a computer, or is this all taken care of internally on your handheld unit and the repeater?
Great explanation!
Ok so the sound at about 3 minutes explains what I'm hearing on one of the Johannesburg repeaters which used to be for normal voice but has been re-purposed.
DMR is an interesting new facet to ham radio. I like the concept of interlinking things, much like the WAN & Mesh networks of the I.P world. Just the same, I wonder how well it works independently of a networked system? Any better or worse than analog FM?
Best explanation I have found so far. Many thanks for making the video. What I find lacking during searches for DMR videos is those which show how to use DMR practically. Not the radio setup, but how to connect to a talk group on a repeater, talk on it, end the talk group connection; and also what happens if two talk groups are active on a repeater simultaneously - is this even possible? Sorry I'm a newbbie, but just looking for someone to talk through the mechanics of using talk groups on a repeater. Cheers
Most DMR radios I have seen will 'hang on' to a talkgroup it has just heard, for a set amount of time. Let's say 20 seconds. If you key up within 20 seconds it will go out on the last heard talkgroup even if your radio was set to a different one. If the 20 seconds has gone by, it will 'let go' and your radio will transmit using whatever channel you currently have it set on.
Awesome nicely explained fro a beginner like me
Excellent. Thanks!
Thank you that was helpful
Thanks, very interesting 👍
Crystal Clear walkthrough! Much appreciated. Wouldn't it be cool if you didn't need that windows VM?
It'd be nice if manufacturers supported other OS's with their utility software. Many DMR radios don't even support Macs, let alone linux.
But hey, virtual box is free, so there's at least a way.
That was a great post. By the way I grew up in southern Indiana, Vincennes. My sister still lives in Fort Wayne. Is there any way of connecting groups like say in Indiana that were old friends of yours or things like that? Sort of like on Facebook you can friend people. God bless you. John
Totally new to DMR.. Trying to catch up.. Good video.
The primary goal of the DMR standard is to specify a digital system with low complexity, low cost, and interoperability across brands, so radio communications purchasers are not locked into a proprietary solution. However, in practice, many vendors have introduced proprietary features that make their product offerings non-interoperable with other brands.
I think I'll continue with CW, AM and SSB.
Great video. It seems Yaesu Fusion is much more user friendly.
Me after watching 20 DMR videos - still don't fully understand DMR lol. Your vid explains some things but I have to continue the quest of DMR...I love how you using Linux. Are you using your SDR tru an SDR Server or directly plugged in the Linux distro machine ? I have an AirSpy SDR that will not get detected in Ubuntu out of the box. Works fine from an SDR Server on Raspberry Pi. Thanks
Thank you Kevin! :-)
Thank you sir!
I am planning a motorcycle trip from NC to Alaska this summer. DMR will be a god send if I can use DMR repeaters for a emergency.
If you have questions regarding DMR, here's a link that may assist with putting the pieces together.
www.miklor.com/DMR/DMR-Tutorial.php/
this is the only dmr that doesn't need a nerf
I know of a SDR software that can decode DMR, NXDN, D-STAR, and Yaesu System Fusion called SDRAngel. So far I think it's only for Linux. Cool thing too is it can TX too (not digitally unfortunatly) although I haven't tried that because I don't own a txcvr SDR.
Very good.
Does the software for this radio not allow you to change the admit criteria? I noticed the choice seems to be "Always" and grayed out throughout your video. Typically for repeater usage you'd want to choose an option similar to "Color Code Free" so that you are not inadvertently stepping on someone else's QSO.
There is a key combination that unlocks the grey options.
yes, to do so, I think you need to go into ADMIN mode. on that software you get there by clicking CTRL-ALT-SHIFT -5 then enter the password of DMR961510
well explained thx
Nice video, I'm wanting to get into DMR and you've explained it better than some. I'm in the Crawfordsville area. I'm like you, but it seems pretty cool. KA9WLU
hello, this radio baofeng dm, is dmr or dpmr ????, thanks
Thanks for the great video and explanation. Still a little hesitant to give it a try to DMR. I find it a bit difficult for me so let's see..... 73s to all around. This is KJ4BGW. Over!!
I really like the way in which you presented the information in this video on the basic understanding of DMR. AI5HV /73
Really nice video thanks. Can you recommend a low cost radio to start with? I've read that some have issues. de N8XYN k
The Connect Systems CS-580 UHF handheld is an inexpensive, simple, stable, basic DMR handheld. Its what I started with last year.
It's my understanding that private calls are not allowed on the DMR-MARC network, correct? If so, is this basically just used as a digital version of HAM? I guess the advantage being you can isolate conversations through the existing talkgroups. Are there scenarios where you can use the network for one-to-one calling or would you have to have your own repeater for that?
Yeah, I think on the networks you're limited to public talk groups. I haven't gone any deeper into it since doing this video.
Gotta Love Hams !
Great video, but could we go now to the hardware and hotspot and so on....Do you have a video of this? Thanks
Nope, sorry, haven't done any more with dmr
Very helpful. Thank you. -- 73 --
I just got a DMR radio but strictly want to use it for police, fire scanning. I had a couple questions and was hoping you could help me out?
what do the id numbers with the i on them mean? i525 etc
Great video. I'm very interested in DMR. I hope I can find someone in my area that knows DMR to learn from. Due to the COVID-19, No local ham clubs are open yet. Thanks, KO4FFG
When you say what it sounds like... how are you interpreting? as FM?
yes
I'm still lost AF. you went through the menu's, but I still don't see it from a radio-radio or radio-repeater-radio setup.
IE, i'm in the middle of nowhere, but i've got a buddy 5 miles away also with a DMR radio. what do we need to program in for DMR "simplex"? anything?
Where can I find info about DMR repeaters? what resources are there?
Also, if i'm listening in on a freq, without any settings programmed in (in analog mode?) will I hear DMR transmissions? Analog transmissions? or will it sound like garbled hell?
If I transmit, how do I know I'm going out via DMR or via Analog?
I will say, the zone thing seems kinda cool, especially with radio's that have GPS built into them -- you could have the radio pre-programmed for different states, and as you get to a certain area, does it just change over your settings? ie say I program my radio for a certain set of repeaters near me locally as zone 1, but I travel home to my parents for the weekend. and have the repeaters there loaded up in zone 2. when I travel, will it automatically "block" or filter out the channels in zone 1?
Munky, do a search on 'talkaround', that is the DMR term for simplex. If talkaround is not selected, DMR radios will look for a repeater when you key up. If there is none around it will say 'repeater not found' and give up. If you select talkaround it won't look for a repeater, it will simply transmit with your settings (color code, etc). Yes you will hear DRM if you are listening on analog, it will just be an unpleasant noise though. Most radios will prominently display Digital or Analog, or D or A. you'll know what you are transmitting on.
I hit the like button when you went binary at 4:20 or so.
I got a code plug from a local ham for my GD-77, I am trying to figure it all out..
So is this like, or usable as a HAM radio? I got a friend an AT-D878UV for Christmas. He said it was just a walkie-talkie so he could not use it???
Could i do this with my Icom 718? This VOIP is like echolink on steroids
I get it... but it seems like in the 90s we had "Webtalk". It was a free audio chat room on the web. I would be more interested in using the airwaves to eliminate the internet. Seems like a lot of work to connect to VOIP. Rebuilding WinLink would be nice. It seems to have faded into the woodwork.
Your radios isn’t on or off for the time slot, it’s on 100% of the time. It only decodes to audio the 50% (that time slot you are interested in).
I was doing ok until 10:54 but you lost me when you brought in all the other repeaters and then that menu on your computer totally blew me away. It's back to 40m CW for recovery :*)
Basically lets say you are going out of town and you have all their repeaters info . What you would do is more or less repetitive work the names and numbers of the contacts/groups may remain the same but the frequencies are different and the colors are or may be different. Just like the MD-380 can be used with analog repeaters. Hope this helps.