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?
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?
_______________________________________________ Sent via AMSAT-BB@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 program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
We (AMSAT-NA) have a team working on an upconverter for Fox-1C/D L band, 70 cm in with L satellite band output at TBD (>=15W) power right now. With Fox-1C due to launch around the end of the year we expect to have those plans and maybe parts available for that launch. More information will come out as we get some prototypes tested. Just remind me again in a month or two if I haven't said anything!
Jerry Buxton, NØJY
On 8/18/2015 14:42, David G0MRF via AMSAT-BB wrote:
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?
Sent via AMSAT-BB@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 program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via AMSAT-BB@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 program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
participants (3)
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David G0MRF -
Jerry Buxton -
W M Willoughby