Search found 56 matches

by G4AON
Thu Mar 02, 2023 2:03 pm
Forum: Pi-Star General Support
Topic: Setting DC offset?
Replies: 0
Views: 2364

Setting DC offset?

In the MMDVM settings, in addition to the RF offset, there is a DC offset. In GitHub there is a calibration utility that appears to work with a serial port and Windows… it doesn’t look like something related to Pi-Star. Other than trial and error, for minimum BER on DMR, is there a better way to adj...
by G4AON
Sat Feb 25, 2023 11:43 am
Forum: Pi-Star General Support
Topic: Download Android Pi-Star software !!
Replies: 4
Views: 1813

Re: Download Android Pi-Star software !!

Peter, there is DroidStar which gives you DMR, Fusion, etc on a mobile phone. The link to Google Play is:
https://play.google.com/store/apps/deta ... star&gl=US

73 Dave
by G4AON
Thu Feb 16, 2023 10:58 am
Forum: MMDVM_HS Hat(s)
Topic: TCXO on Chinese MMDVM boards
Replies: 1
Views: 4466

Re: TCXO on Chinese MMDVM boards

I decided that the original TCXO was just hopeless. The size and basic specification of the original Chinese 14.7456 MHz TCXO by SCTF looks to be the same as an ECS-TXO-3225MV-147.4-TR. However, the ECS one is specified as +/- 2.5ppm over -30C to +85C, as opposed to 20ppm for the Chinese one (assumi...
by G4AON
Mon Feb 13, 2023 3:53 pm
Forum: MMDVM_HS Hat(s)
Topic: TCXO on Chinese MMDVM boards
Replies: 1
Views: 4466

TCXO on Chinese MMDVM boards

I recently bought a cheap Chinese MMDVM board and struggled to get it up and running. By a process of elimination, I was able to determine that the board was significantly off frequency, so far off that it was not possible to transmit or receive with it on the indicated channel. The method to find t...
by G4AON
Sat Feb 11, 2023 10:39 am
Forum: Pi-Star General Support
Topic: DVAP still supported?
Replies: 2
Views: 483

Re: DVAP still supported?

In answer to my own question, entering DVAP into the search box part of the drop down box brings up DVAP (USB) and it works.

Maybe it is there but not listed in the drop down box?

Confused me…

73 Dave
by G4AON
Sat Feb 11, 2023 9:53 am
Forum: Pi-Star General Support
Topic: DVAP still supported?
Replies: 2
Views: 483

DVAP still supported?

I’m setting up a new card and cannot find the old DVAP dongle listed in the drop down modem list.

Has support for DVAP been dropped from the later versions of Pi-Star?

73 Dave
by G4AON
Mon Mar 14, 2022 10:11 am
Forum: D-Star Specific Support
Topic: Reflector "Not Linked' Issue
Replies: 21
Views: 5658

Re: Reflector "Not Linked' Issue

I too have this issue, in my case auto connect to REF079D says “connected to” on power up, but the status page shows not connected.

If I run an update, it then connects and works.

It appears that something is set following an update but not at powering up.

73 Dave G4AON
by G4AON
Tue Feb 22, 2022 11:48 am
Forum: Pi-Star General Support
Topic: VHF issues on MMDVM hotspot
Replies: 4
Views: 1609

Re: VHF issues on MMDVM hotspot

My Chinese copy MMDVM board definitely doesn’t work on 2m. It also only had micro Watts output due to faulty filter components (I removed them and it now outputs 10 mW and the harmonics are still quite low, around -30 dBc). Buyer beware. Another one to be aware of are those cheap Chinese copies of D...
by G4AON
Tue Feb 08, 2022 10:23 am
Forum: D-Star Specific Support
Topic: Was REF079 "down"?
Replies: 0
Views: 908

Was REF079 "down"?

It looks like the UK Reflector REF079 was out of action for 3 days, it was intermittent before that.

I think someone has reset something since I posted this as ‘79 appears to be working again!

The status page is:
http://ref079.dstargateway.org/

73 Dave G4AON
by G4AON
Thu Nov 26, 2020 7:44 am
Forum: DMR Specific Support
Topic: BrandMeister broken?
Replies: 5
Views: 2537

Re: BrandMeister broken?

The problem appears to have "sorted itself". I initially tried a Shark Openspot2 and that didn't work either... I got the Pi-Star/MMDVM working with the server in Ireland and then after the post on here about there being a UK one QRV again, I swapped to that one and it is working fine. 73 ...