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

[Gavin Rogers]

Maybe different in other states, but in Perth the only carrier with GSM still is Vodadone, and their coverage isn't good enough where I am to get a good calibration.



On 19 November 2017 11:21:49 am AWST, Peter VK2MPJ <vk2mpj at yahoo.com.au> wrote:
>I’m curious why you say that using kal and a GSM signal is not possible
>anymore?
>I did this locally just last weekend…
>
>2MPJ
>
>
>> On 19 Nov 2017, at 12:42 pm, Gavin Rogers
><grogers at vk6hgr.echidna.id.au> wrote:
>> 
>> 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
><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
><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://www.livingwaters.com/good>   |     http://vk6hgr.ampr.org/
><http://vk6hgr.ampr.org/>
>>                MSN/Skype/Email: grogers at vk6hgr.echidna.id.au
><mailto:grogers at vk6hgr.echidna.id.au>
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-- 
Gavin Rogers mobile
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