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

David G0MRF g0mrf at aol.com
Tue Aug 18 19:42:01 UTC 2015

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


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.



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


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

Sent via
AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
to all interested
persons worldwide without requiring membership. Opinions expressed
are solely
those of the author, and do not reflect the official views of AMSAT-NA.
Not an
AMSAT-NA member? Join now to support the amateur satellite
Subscription settings:


More information about the AMSAT-BB mailing list