Wrong work on Pi-star + MMDVM

Help with YSF / Fusion issues
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Wrong work on Pi-star + MMDVM

Post by JA3VQW »

Hi guys.
From few days before My Pi-Star+MMDVM system shows problem below.
1) Dashboard shows everything OK. I use YSF mode and YSF2DMR.
2) If I connect to Parrot (YSF00001) and transmit from HTs then Pi-star system send back BUT I can not decode the signal.
3) Every HT I have shows same problem.
4) Try old version of Pi-Star and change firmware of MMDVM shows same problem.
5) RasPiZero + Jumbospot system works completely on same LAN and same setting.

Please tell me the way for fixing.

73 de JA3VQW/Hiro
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

I explain the detail.
RasPi3+MMDVM system has worked completely in these years.
I did not change any parameter BUT few days ago this system works wrong.

I checked the output RF form this system on ICR-8600 and IC-9700.
The frequency is just to the my setting 438.85 MHz. The spectrum is good.
When I check the RF on FM mode it sounds like ordinary yaesu fusion.

Please give me any suggestion.
73
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

More details

System is

Raspi3--MMDVM--TRX(IC-880D,FT-817 )
Pi-Star ver 4.1.5 Dashboard 20210621
MMDVM FW 20180327

This system has worked fine until few days ago on YSF mode and YSF2DMR.
Suddenly it got wrong.
I replace SD card and Pi-star version and MMDVM FW and MMDVM itself.
BUT the Bad situation is still same.
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

Thanks again.

I tried to firm up my MMDVM but failed.

I put
sudo pistar-mmdvmhshatflash hs_hat
----
and got

http://github.com/rogerclarkmelbourne/arduino_stm32

Using Parser : Raw BINARY
Interface serial_posix: 57600 8E1
Failed to init device.

So my MMDVM is still in 20180317 ver.
BTH 2018317 ver worked fine before few days.
Ooops.
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

My board is
DMR_modem.jpg
DMR_modem.jpg (250.25 KiB) Viewed 2349 times
Yes, I tried firm-up for this board with jumpered to 20180317.
So I like to know the latest version of firmware for this modem.
73
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

Thanks again again.

I finally understand the situation.
So please let me know your recommends EC site to buy new MMDVM board(
suitable for todays Pi-star).

73
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

HI
I use MMDVM only for hotspot.
BUT I must connect MMDVM to external TRX (IC-880D , FT-817 etc).
So I must find POG type MMDVM with new schema and firm without Jumperpin.

One I find is
MMDVM3.jpg
MMDVM3.jpg (184.37 KiB) Viewed 1925 times
It is similar to POG modem.
Is it okay for todays Pi-sar system ??
73
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

Thanks for message
I will try it.

BTW
I need external TRX to MMDVM for the reason below
1) By Japanese lows for amateur radio
I Japanese radio amateur must obey JA lows that require to us when changing or using new TRX even its power is very low.
For using MMDVM hotspot We must register and get permission from JA PTT . In many cases it cost about 40 dollars !

2) I want use DMR network from outside of my home. So I need external TRX with high (20W)power.
Thanks again your patience and warm messeges.
73
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

Hi All.
Today I found very strange phenomenon below.

1) Pi-Star Ver 4.1.5 Dashboard 20210721 MMDVM on Pi3 connected to ID-880.
2) YSF and YSF2DMR mode on and connect to Parrot (YSF00001)
3) When I transmit form FT3D or FT2D dashboard shows all is fine.
4) I can not decode RF signal form Parrot on FT3D or FT2D BUT can decode on AR-DV10 (AOR handy receiver ).

I think the issue on header of transmitting signal from my system.
Please let me know how to fix this LONG problem.
73
JA3VQW
Posts: 22
Joined: Thu Aug 09, 2018 3:17 pm

Re: Wrong work on Pi-star + MMDVM

Post by JA3VQW »

Thanks for reply.
I use MMDVM (POG Ver1).
Of cause I checked and changed many parameter of Pi-Star dashboard Expert panel.
This problem occurred suddenly on bigging of July 2021 so I think some changes happens on YSF2DMR .
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