I wonder how hard it would be to get the raspberry pi to download TLE's every now and then, and apply doppler correction to the downlink iGate frequency. on 70cm, this might be a big deal.
On Thu, Mar 2, 2017 at 9:56 AM, Scott [email protected] wrote:
Hey Dave.
It takes longer to read the instructions that it does to setup a Raspberry Pi to be an iGate.
When the ISS digipeater changed to 70cm, there were not enough iGates so I thought it might be fun to throw one together. There are numerous how-to's online, but this one is perhaps the most straight-forward:
https://github.com/wb2osz/direwolf/blob/master/doc/Raspberry -Pi-SDR-IGate.pdf
... unfortunately, the way the document was created you won't be able to copy/paste commands. But regardless, it's not a difficult process if you have even the slightest familiarity with a Pi or linux in general.
Hope that helps!
-Scott, K4KDR Montpelier, VA USA
-----Original Message----- From: Dave via AMSAT-BB Sent: Thursday, March 02, 2017 9:57 AM To: [email protected] Subject: [amsat-bb] APRStk ? Or other?
Hi All
I'm setting up an autonomous sat gate using a spare Kenwood TMD700. I seem to remember that once upon a time there was a DOS program called APRStk that could Doppler correct the TMD700.
Does anyone know of a more up to date alternative that would run on a Pi or Pi Zero?
Regards Dave EI4HT / M0GIW _______________________________________________ Sent via [email protected]. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb