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Raspberry Pi 3 B +, which Pi-star to use?
Posted: Thu Feb 29, 2024 2:40 pm
by Kc4vfz
Hi, I'm having problems getting my Pi-Star hot spot going. I have installed and configured a version from this month (2/24) but I'm not hearing any traffic. I'm wondering, what is the latest image that is compatible with my Pi?? Thanks
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Thu Feb 29, 2024 2:53 pm
by G8SEZ
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Thu Feb 29, 2024 6:52 pm
by M1DNS
Pi-Star_RPi 4.1.8
Or
Pi-Star_RPi 4.2.1
Sent via smoke signals using my SM-G960F
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Fri Mar 01, 2024 2:09 pm
by Kc4vfz
I got 4.2.1 set up last night. I'm still not hearing any traffic. The only thing I hear is when my Pi-Star starts up and it links to the reflector. I hear nothing when attempting an Echo test. I'll try to grab some snapshots of my configuration and post them tonight.
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Sat Mar 02, 2024 2:41 am
by Kc4vfz
Added some screen shots. Any advice is appreciated.
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Sun Mar 03, 2024 9:38 pm
by DF1KZ
Did you check the frequency of the TCXO of your MMDVM? Sometimes there are frequency deviations of a few 100 Hz for the RX/TX-frequencies.
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Mon Mar 04, 2024 4:09 am
by Kc4vfz
Where can I check the TCXO of my MMDVM? Is that in Expert settings?
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Mon Mar 04, 2024 4:23 am
by Kc4vfz
Trying to post my dashboard view
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Mon Mar 04, 2024 7:48 am
by DF1KZ
The parameters are called RXOFFSET and TXOFFSET. You can find them under configuration-expert-mmdvm. With this parameters you can adjust the frequency-deviation of the TCXO.
Your TCXO-frequency should be 14.7456 MHz. An offset of 100 Hz leads to a deviation of abt 3 kHz for the Rx/TX-frequencies at 430 MHz.
There are a few threads dealing with this problem on this forum.
Re: Raspberry Pi 3 B +, which Pi-star to use?
Posted: Tue Mar 05, 2024 2:02 am
by Kc4vfz
Both RXOFFSET and TXOFFSET are set to 0. The TCXO-frequency shows 14.7456 MHz. Do I need to adjust these now??