Search found 49 matches

by AA3RP
Sun Sep 11, 2022 5:40 am
Forum: General discussions
Topic: ERROR - OUT OF BAND
Replies: 4
Views: 197

Re: ERROR - OUT OF BAND

Thank you - I found the correct setting with your suggestion. Band limits are clearly turned off in my codeplug, but not so in the radio. Options >> Band Limits: CPS Don K4DPR Can you change the Band Limit to CPS using the radio only ? You should be able to, and I believe that will fix the issue yo...
by AA3RP
Thu Sep 01, 2022 10:05 pm
Forum: Bug reports
Topic: Flaws with new versions (scan/recognising burst)
Replies: 26
Views: 2253

Re: Flaws with new versions (scan/recognising burst)

I have tested yesterday, the same as you said - slower scan, data bursts stop scan + wierd noises; the same is if you are on one channel, without scan + i have aslo found out, if i'm on the vfo mode on a channel, it doesn't do it - but i need longer test, so will report if this is true. The scan is...
by AA3RP
Mon Aug 22, 2022 12:39 am
Forum: Off topic
Topic: GD-88, the new Radioddity DMR radio
Replies: 29
Views: 5346

Re: GD-88, the new Radioddity DMR radio

what I can tell from the photos of the internal of the GD-88 is that it has two (C7000) processors and from the report of a current owner two RF receive circuits (paths). Might be an impressive radio, but I doubt there will any independent 3rd party firmware for this radio any time in the near futur...
by AA3RP
Mon Aug 22, 2022 12:25 am
Forum: Off topic
Topic: GD-88, the new Radioddity DMR radio
Replies: 29
Views: 5346

Re: GD-88, the new Radioddity DMR radio

Thank you for the link of the radio tear down.

AA3RP
by AA3RP
Sat Aug 20, 2022 6:07 pm
Forum: Off topic
Topic: GD-88, the new Radioddity DMR radio
Replies: 29
Views: 5346

Re: GD-88, the new Radioddity DMR radio

Does anyone know what hardware the GD-88 is based on?

What CPU(s) / DMR / VFO / etc. and if it single or dual rx / tx hardware?

AA3RP
by AA3RP
Mon Aug 15, 2022 2:41 pm
Forum: TYT MD-9600 / Retevis RT-90
Topic: TYT MD-9600 / Retevis RT-90 : Experimental version
Replies: 149
Views: 29153

Re: TYT MD-9600 / Retevis RT-90 : Experimental version

OK Well, you guys seem to be the only people who have 'hot' mic's on DMR as far as I'm aware. The default mic gain on FM may be a little high, but its only noticable on repeaters that use CTCSS as it can cause clipping due to overdeviation of the FM TX signal messing with the repeater's demodulatio...
by AA3RP
Mon Aug 15, 2022 6:53 am
Forum: TYT MD-9600 / Retevis RT-90
Topic: TYT MD-9600 / Retevis RT-90 : Experimental version
Replies: 149
Views: 29153

Re: TYT MD-9600 / Retevis RT-90 : Experimental version

Its very strange all of your radios have a very loud mic, when had no one else every had this problem Are you using the mic that came with each radio. Why do you have so many md9600? I am not sure I am the only one with a loud mic. Another local ham who purchased a MD-9600 had the same issue and at...
by AA3RP
Sun Aug 14, 2022 6:47 pm
Forum: TYT MD-9600 / Retevis RT-90
Topic: TYT MD-9600 / Retevis RT-90 : Experimental version
Replies: 149
Views: 29153

Re: TYT MD-9600 / Retevis RT-90 : Experimental version

Hello, i have 2 MD-9600 version 2 and on analog the distance range on open field is around 30 nm but on digital even at 2 miles sometimes work fine but normally the voice is cutting and not possible to understand. I checked ouput power at highest mode with a 50Ohm load and is not more that 20 un UH...
by AA3RP
Thu Jul 28, 2022 2:37 am
Forum: TYT MD-9600 / Retevis RT-90
Topic: User Interface controls
Replies: 44
Views: 6248

Re: User Interface controls

Very nice diagram and info. One small point, I believe S1 should be changed to SK1. Thank you for the work on this.

AA3RP
by AA3RP
Thu Jul 21, 2022 2:20 am
Forum: TYT MD-9600 / Retevis RT-90
Topic: Calibration
Replies: 8
Views: 722

Re: Calibration

Initially I tried making some changes to the PA drive to resolve the problem, but the beta tester who thought he had the PA problem later reported that his radio seemed now to be working OK, however I think he is probably only using UHF. Possibly pulsing the PA drive to its max level for the first ...