Hi.
Mode VU suffers from interference at the atellite from illegal use of
2m for taxis etc.
Mode VU has a higher path loss on UHF from the satellite to ground
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
Thanks
David G0MRF
-----Original Message-----
From: Ing. Pavel Milanes Costa <co...@frcuba.co.cu>
To: Bob- W7LRD <w7...@comcast.net>
CC: amsat-bb <amsat-bb@amsat.org>
Sent: Thu, 30 May 2013 13:26
Subject: [amsat-bb] Re: Is there anyway to get a linear transponder on
the ISS?
Yeha...
A V/A transponder on the ISS would be a success... ;-)
I confess: I like V/A (2m/10m) because I do not have UHF radios...
BTW: Why is the U/V the choice of almost any sat launched this days...?
Why not V/U or V/A?
73 de CO7WT
El 30/05/13 00:17, Bob- W7LRD escribió:
if there were a "real" ham on the ISS things would be different.
73 Bob W7LRD
------------------------------------------------------------------------
*From: *"Ing. Pavel Milanes Costa" <co...@frcuba.co.cu>
*To: *amsat-bb@amsat.org
*Sent: *Wednesday, May 29, 2013 7:04:23 PM
*Subject: *[amsat-bb] Re: Is there anyway to get a linear transponder
on
the ISS?
There is no provision or equipment for the job on board.
There is a FM repeater in U/V mode, but last time on for it back a
years
from now (2008?)
That time I read in some place of the internet that the FM repeater
was
a power hungry device onboard, and that's why it was turned off...
They do not want to listen, or no body said to them that just turning
the TX Power Down will fix this... or kind of...
I think the repeater function involved the Kenwood radio that now has
a
malfunction...
so... there is no hope for now...
My 5 cents...
73 de CO7WT
El 29/05/13 21:03, K5VOU escribió:
> Just thinkin'
> Tom K5VOU
>
>
> _______________________________________________
> Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the
author.
> Not an AMSAT-NA member? Join now to support the amateur satellite
program!
> Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
>
_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the
author.
Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite
program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________
Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
