Now that I have SDR# working with my RTL-SDR I started wondering about plugins to work with APCO and DMR, so far I have only found 10 year old software. Is there anything newer?
SDR# APCO, DMR
- Thread starter KC0QNB
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When you get idle time, read some of the previous post here for a multitude of ideas, suggestions, hints, and tricks.
One of the best things I use for APCO and DMR is DSD fastlane. A lot of people use unitrunker. Both are currently maintained.
If you just got this up and running and a novice to RTL-SDR, first, toss the useless antennas you got with this and think a good antenna
up on the roof. Mine is a discone, a good mate for the system.
Filters and traps. These dongles are based on modern TV tuners and have no filtering.
Many of the threads covering noise are addressed in previous posts. Read enough of those, you get the big picture.
Later, you might consider adding like Airspy HF-discovery, a good dongle for frequencies below 70 MHz.
Multiple dongles for SDR trunk tracking. Frequency manager and recorder are usually the first go-to plugins for SDR#.
Welcome to raw SDR world.
One of the best things I use for APCO and DMR is DSD fastlane. A lot of people use unitrunker. Both are currently maintained.
If you just got this up and running and a novice to RTL-SDR, first, toss the useless antennas you got with this and think a good antenna
up on the roof. Mine is a discone, a good mate for the system.
Filters and traps. These dongles are based on modern TV tuners and have no filtering.
Many of the threads covering noise are addressed in previous posts. Read enough of those, you get the big picture.
Later, you might consider adding like Airspy HF-discovery, a good dongle for frequencies below 70 MHz.
Multiple dongles for SDR trunk tracking. Frequency manager and recorder are usually the first go-to plugins for SDR#.
Welcome to raw SDR world.
Thanks I have an old 2 meter antenna about 20 feet off the ground, antenna isn't an issue.
Thanks tomorrow I will look into it
I have SDR-Trunk running for my county and an adjacent county. It is working, but I was expecting more traffic; maybe it is just a slow day. I tried to add some NBFM frequencies I added three but one simply won't be quiet with the squelch adjustment no matter how high or low it is.
So, I deleted all three frequencies.
What dongle(s) do you have, and what freqs is the county system, and which nbfm freqs are you trying to add,
Nebraska State Radio System Site: Cozad
Nebraska State Radio System Site: Cozad Details
www.radioreference.com
Nebraska State Radio System TG Category: Dawson County
Nebraska State Radio System TG Category: Dawson County Details
www.radioreference.com
Assuming these
Looks doable.
RTL-SDR dongle and some of the older freqs for my county, and city. I don't think all of the towns that have APCO capacity are using it. The freqs in question are VHF in the 154-155 mHz area which are close to the assigned APCO freqs, but not the same.
No muting, you might have your bandwidth too wide or the channel (s) that dont squelch can be a spike inside of the bandpass.
Check your gain, I found 12 to 16 works best for plain analog channels. Much higher, it may never squelch.
Un tick your tuner agc and use manual slider. Play with it, you find a sweet spot of best signal to noise ratio.
Check your gain, I found 12 to 16 works best for plain analog channels. Much higher, it may never squelch.
Un tick your tuner agc and use manual slider. Play with it, you find a sweet spot of best signal to noise ratio.
I need to make sure I understand some items. I watched a few videos, and as I understand it, all I need to have programmed is the Control frequencies. Is that correct?
Believe the OP was using SDRT
If you’re using SDRT that is correct. Only control channels. In case you did not know, SDR# will not do trunking
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