Search found 9 matches
- Fri Nov 09, 2018 1:23 am
- Forum: ZUMSpot (Hat / Libre / USB)
- Topic: Firmware upgrading from v1.4.7 to v1.4.8
- Replies: 11
- Views: 12759
Re: Firmware upgrading from v1.4.7 to v1.4.8
I experienced this same thing and momentarily disabling the screen under "MMDVM Display Type" solved it. I'm guessing because the screen is using the same serial port as the firmware update...
- Mon Sep 24, 2018 12:13 am
- Forum: MMDVM_HS Hat(s)
- Topic: Hs hat duplex no rx and no Dmr login
- Replies: 18
- Views: 12149
Re: Hs hat duplex no rx and no Dmr login
That board appears to be identical to what I got - I can only get it to work with the STM32-DVM modem setting in simplex mode. Duplex mode doesn't work for me at all.. like wise as well did you find a solution? It was actually my fault - I was incorrectly assuming that leaving the radio talkgroup(s...
- Tue Sep 04, 2018 6:16 pm
- Forum: MMDVM_HS Hat(s)
- Topic: Duplex mode unreliable
- Replies: 4
- Views: 4201
Re: Duplex mode unreliable
I have the offset dialed in pretty well (hence the low BER), so I'll give the deviation a try..Thanks!
- Sat Sep 01, 2018 9:19 pm
- Forum: MMDVM_HS Hat(s)
- Topic: Duplex mode unreliable
- Replies: 4
- Views: 4201
Duplex mode unreliable
I'm using a Chinese duplex HAT and have noticed that receiving for duplex mode seems to be hit and miss, depending on the radio used. My CS750 is really bad, with my TYT MD-UV390 being much better but still hit and miss at times. My BER is very low (0-0.3) and offset between RX and TX frequencies is...
- Sat Aug 04, 2018 10:24 pm
- Forum: MMDVM_HS Hat(s)
- Topic: Rx issues, mostly one radio...
- Replies: 16
- Views: 10947
Re: Rx issues, mostly one radio...
That's not a TX offset. Stolen from the SharkRF forums: From Connect Systems: "Selects the Reference Frequency used when receiving on the current channel. The reference frequency can be shifted to allow the radio to operate on channel frequencies that would otherwise be blocked by internally ge...
- Fri Aug 03, 2018 6:08 am
- Forum: MMDVM_HS Hat(s)
- Topic: Both timeslots on MMDVM_HS_HAT_DUPLEX?
- Replies: 4
- Views: 5629
Re: Both timeslots on MMDVM_HS_HAT_DUPLEX?
I can't get my duplex board to work in duplex mode at all, so I think my issue is something else beyond the mentioned topics. My TRX is blank when in duplex mode, so that's probably a good starting clue.
- Fri Aug 03, 2018 6:07 am
- Forum: MMDVM_HS Hat(s)
- Topic: Hs hat duplex no rx and no Dmr login
- Replies: 18
- Views: 12149
Re: Hs hat duplex no rx and no Dmr login
That board appears to be identical to what I got - I can only get it to work with the STM32-DVM modem setting in simplex mode. Duplex mode doesn't work for me at all..
- Mon Jul 23, 2018 7:20 pm
- Forum: MMDVM_HS Hat(s)
- Topic: Both timeslots on MMDVM_HS_HAT_DUPLEX?
- Replies: 4
- Views: 5629
Re: Both timeslots on MMDVM_HS_HAT_DUPLEX?
Here's another related post for those searching:
viewtopic.php?f=3&t=665
Looks like it's coming soon, in a way that doesn't require manual editing..
viewtopic.php?f=3&t=665
Looks like it's coming soon, in a way that doesn't require manual editing..
- Wed Jul 18, 2018 4:28 pm
- Forum: MMDVM_HS Hat(s)
- Topic: Both timeslots on MMDVM_HS_HAT_DUPLEX?
- Replies: 4
- Views: 5629
Both timeslots on MMDVM_HS_HAT_DUPLEX?
I have this installed: https://www.ebay.com/itm/Duplex-MMDVM-Hotspot-Support-P25-DMR-YSF-for-Raspberry-Pi-with-2-Antenna-US-Ship/163093603360 On a Raspberry Pi 3B+ with a 3.5" Nextion screen and am trying to figure out how to get both timeslots to work in simplex mode, using this screen: https:...