[amsat-bb] request detailed system diagram for remoting a satellite station

[David J. Schmocker]

dear Mati:
Thank you.. I will share any details discovered!   If nothing is out 
there already in existence, certainly I can design my own solution (this 
may just take a lot longer).

very 73 and I look forward to contacting LU station Mati via satellites!

very 73,

Dave KJ9I

KD9BOG at work

On 7/17/20 2:23 PM, lu9cbl--- via AMSAT-BB wrote:
> Hi! we have the same issue to want to be solved, but with an Icom 
> IC9100. I saw an Icom Software 
> (https://www.icomamerica.com/en/products/amateur/hf/rsba1/default.aspx) 
> for our case, maybe can work with your 9700 too. We dont try it 
> because for the COVID dont access to the station to try it.
>
> BUT we are still searching an alternative with raspberry pi, to remote 
> control all the station (Rotor, Equipment and audio exchange) so if 
> you find an alternative, please share with us too.
>
> 73s Mati LU9CBL
>
>
> El 17/7/2020 a las 16:06, David J. Schmocker via AMSAT-BB escribió:
>> Hello,
>>
>> Does anyone have a detailed system diagram (or interconnect drawing) 
>> showing how they have remoted a satellite station please?   
>> Specifically which parts of the system require IP-addressable power 
>> on/off, etc.
>>
>>
>> I am in the process of constructing a new satellite station for U/V 
>> linear use at Milwaukee Area Technical College (where I teach).   Our 
>> Data Communication and Networking class introduces satellite 
>> technology which I plan to demonstrate live.
>>
>> Because the hours of access to the building are limited, and because 
>> we teach Data Communication and Networking from two campuses (but 
>> have Satellite station at only one), remoting this station would be 
>> desirable.
>>
>> I have an APC IP-addressable power strip (117vac) and some power 
>> relays if we need 220vac switched, an IC-9700, two high-power 
>> switchable LNAs (2m and 70cm), antennas (20 element RHCP for 2m and 
>> 16 Turn G3RUH Helix for 70cm), and a Yaesu 5500 rotor with Green 
>> Heron Az/El controller (I'll bring Heliax from home to get to the 
>> rooftop).   Hopefully our city campus location is not overly 
>> noisy.      I plan to construct the HEO-ready station as soon as I 
>> can be back on campus to do this.
>>
>> One specific area of concern: how to pass audio over internet. I've 
>> heard Skype and some other vehicles have problematic latency but I 
>> have yet to remote any station to use 'near real-time audio' for CW 
>> or SSB QSOs so I lack experience with this.  The satellite computer 
>> (controlling antennas and managing Doppler) is a Mac mini running 
>> MacLoggerDX and MacDoppler software.
>>
>> If helpful, I have two surplus new Raspberry Pi 3s (new and unused) 
>> that could be repurposed for part of this if helpful.
>>
>> You'll be happy to know I've been reading the mail and I know to 
>> first listen and test so we Tx with minimum power.  But as a 
>> satellite newby, I'm sure I'll need abundant guidance when we get QRV.
>>
>> Any detailed system diagrams (could be off-list directly to me) 
>> showing how you built and configured such a remote station satellite 
>> system would be greatly appreciated.
>>
>> Thank you
>>
>> very 73,
>>
>> Dave KJ9I
>> KD9BOG (at work)
>>
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>