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@bellsouth.net To: amsat-bb amsat-bb@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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