[amsat-bb] Re: Is there anyway to get a linear transponder on the ISS?

M5AKA m5aka at yahoo.co.uk
Fri May 31 03:35:31 PDT 2013

--- On Thu, 30/5/13, g0mrf at aol.com <g0mrf at aol.com> wrote:
> Mode A has issues with higher noise levels and the size of
> antenna required on the satellite.
> But, I agree mode A would get a lot of interest from people
> with HF + 
> 50MHz equipment.
> - HF antenna = prototype deorbit system??
> or 2 x ferrite rods at 90 degrees on receive

David, there is already an HF monopole (15-30 MHz) installed on the ISS has been since the early days. 

I gather there are antennas for HF, 144, 435 feeding into the Russian Service Module and antennas for 144, 435, 1260 (2 antennas) and 2400 (two antennas) feeding into the ESA Columbus Module.

Some info on the Russian Service Module antennas at 

73 Trevor M5AKA

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