[OZAPRS] How to make a raspberry pi satgate for the ISS

[vk4tec at tech-software.net]

Hello Gavin

 

Aviation transmitters are regularly calibrated 

 

Otherwise I use the GPS satellites for a lock 

 

I have a signal generator here from dc – 4 GHZ that is locked 

 

What band do you need ?

 

Otherwise the Australia Beacon Network on ham radio is GPS locked

 

Andrew VK4TEC

 

From: OZAPRS [mailto:ozaprs-bounces at aprs.net.au] On Behalf Of Gavin Rogers
Sent: Sunday, 19 November 2017 11:42 AM
To: VK / ZL APRS Users <ozaprs at aprs.net.au>
Subject: Re: [OZAPRS] How to make a raspberry pi satgate for the ISS

 

On 19/11/2017 9:30 AM, vk4tec at tech-software.net <mailto:vk4tec at tech-software.net>  wrote:

 

Or, as i've mentioned before, just link to the existing Direwolf SDR+APRS guide, which covers off setting up an igate pretty well: https://github.com/wb2osz/direwolf/blob/master/doc/Raspberry-Pi-SDR-IGate.pdf


In this guide, there's a link to a script that will tune to a NOAA frequency and re-calibrate an SDR TV stick ( https://github.com/khaytsus/direwolf-init )

What would be a good high-stability signal source here in VK for the calibration? I used to use the kal program to calibrate against GSM transmitters, but that's not possible any more. I'd think the trunking control channel for an emergency services' channel would be stable, strong and always on? Or DAB+ transmitter, or..?


73
Gavin.

 

-- 
 
      Gavin Rogers                     |  Amateur radio station VK6HGR     
    http://www.livingwaters.com/good   |     http://vk6hgr.ampr.org/
               MSN/Skype/Email: grogers at vk6hgr.echidna.id.au <mailto:grogers at vk6hgr.echidna.id.au> 
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