[amsat-bb] AO-73 - Evening transponder time increasing in Northern Hemisphere

[David G0MRF]

Hi WM
 
Nayif-1 will be have a U/V linear transponder as AO-73 but with revised oscillators.
 
The  FM system on ESEO will be an L band uplink on 1263.500 and an FM downlink on 145.930.
The last tests showed 350mW on the 2m low power setting and 750mW on high power.  
Access will need a 67Hz CTCSS tone

http://www.esa.int/spaceinimages/Images/2015/04/ESEO_model


Not sure about upconverters, but this group in Europe have a transverter which I believe is somewhere about 167 Euros.

Although just FM may be much easier.

Perhaps of interest in a year or two for the AMSAT-NA Phase 4 project is their upconverter to 5 - 6 GHz.

http://www.sg-lab.com/TR1300/tr1300.html

Thanks

David  G0MRF
 
 
-----Original Message-----
From: W M Willoughby <redski at bellsouth.net>
To: amsat-bb <amsat-bb at amsat.org>
Sent: Tue, 18 Aug 2015 16:57
Subject: Re: [amsat-bb] AO-73 - Evening transponder time increasing in Northern Hemisphere


Good info on AO-73 - maybe that will help get some more activity on
the
transponder.

 

Relative to Nayif-1, I need to be thinking about an
up-converter and an
antenna for L band. Anyone have any
recommendations?

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