BATC Forum

Posted: **Mon Mar 24, 2025 2:54 pm**

Hi
just re-subscribed after getting the QO-100 NB Rx downlink working, 1.2mtr offset dish and a POTY, I have fitted a TCXO to one side of the LNB, which I'm a bit disappointed with the Frequency accuracy 37KHz error at 10489MHz, Abracom ATX-11 series.
As it a dual LNB I might as well use that to receive NB DATV from QO-100.
I see the longmynd software is linux based and I exclusively use linux where ever possible, where can I find out more, which issue of CQTV, and what else is needed, been licensed 50 years now, so maybe time to plat with a bit of DATV
73 Richard

Posted: **Mon Mar 24, 2025 3:17 pm**

You should find something useful in this thread and links therin...
viewtopic.php?t=7889

Good luck and welcome

Gareth

Posted: **Mon Mar 24, 2025 6:49 pm**

Thanks Gareth
hit a problem compiling OS Linux Mint22

Code: Select all

Compiling longmynd with GCC 13.3.0 on x86_64-linux-gnu
  CC     main.c
  CC     nim.c
  CC     ftdi.c
  CC     stv0910.c
  CC     stv0910_utils.c
  CC     stvvglna.c
  CC     stvvglna_utils.c
  CC     stv6120.c
  CC     stv6120_utils.c
  CC     ftdi_usb.c
  CC     fifo.c
  CC     udp.c
  CC     beep.c
  CC     ts.c
  CC     libts.c
  CC     web/web.c
  LD     longmynd
/usr/bin/ld: ./web/libwebsockets//build/lib/libwebsockets.a(unix-caps.c.o): undefined reference to symbol 'cap_set_flag'
/usr/bin/ld: /lib/x86_64-linux-gnu/libcap.so.2: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [Makefile:46: longmynd] Error 1

I'm very aware that the version of debian used with raspian is a long way behind the release I'm attempting to compile with
any ideas
Richard

Posted: **Mon Mar 24, 2025 7:04 pm**

Sorry Richard, I know absolutely nothing about Linux. I know the seemingly endless 'minor tweaks' that RPI updates implement seem to break what went before. Does the Github repository give any 'OS requirements' or advice I wonder?
Maybe the authors can chip in with suggestions....
Gareth

Posted: **Mon Mar 24, 2025 7:40 pm**

OK Gareth
I suspect what I seeing is lack of backward compatibility. I use the same file management system LM is ubuntu lib based, debian uses the same but much older.
Richard

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