[amsat-bb] 1.2 GHz and 2.4 GHz Birds

Bob bobsmacbox at yahoo.com
Thu Aug 27 20:20:55 UTC 2015

I have the Icom AG-2400 downconverter.  Manual says it does not go below 2400 MHz. 


Bob - Sent from my iPad

> On Aug 27, 2015, at 9:49 AM, Daniel Cussen <dan at post.com> wrote:
> On 2395Mhz there is a strong, wide downlink only DVB-S PSK carrier
> from the HAMTV downlink from the ISS. I am not sure you can pick it up
> with your set up. On a spectrum analyser you see a wide hump around
> two megahertz wide. It is very strong when directly overhead. It is
> true circularly polarised, but you MUST use antennas with RHCP not
> LHCP, or you will block the signal.
> At the moment it is broadcasting on every pass, with blank video, but
> the DVB-S carrier is sending normal data.
> It is expected to turn off on Monday 31 August 2015,  between 15:00
> and 15:10 UTC. until mid September as it's power supply is being
> borrowed for another experiment. This should not affect other HAM
> equipment on board the ISS such a packet.
> http://www.ariss-eu.org/columbus.htm
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