[Date Prev][Date Next][Thread Prev][Thread Next] - [Date Index][Thread Index][Author Index]

Re: Hamsat in VK



Hi, All

Please do not use FM on a linear transponder for the simple reason that
a FM user will occupy half of the passband of HAMSAT and will waste
a lot of power from the batteries.

In addition and more important a discriminator of a FM receiver cannot 
detect if a CW or SSB weak signal is operating or not in the passband 
but on the other side a CW or SSB signal will be strongly interfered by 
the FM carrier+deviation.

This is why AMSAT and  IARU recommends do not use FM in linear 
transponders.

TNX

73" de

i8CVS Domenico

----- Original Message ----- 
From: "Jack" <vk2trf@bigpond.net.au>
To: <amsat-bb@AMSAT.ORG>
Sent: Friday, May 06, 2005 2:34 PM
Subject: [amsat-bb] Hamsat in VK


> Hi all,
> 
> 2 VK stations heard on the 12:22 UTC pass right over Sydney.  Using FM.
> 
> Well done Amsat India.
> 
> 
> -- 
> 73
> 
> Jack Swart
> VK2TRF
> QF56oe
> ----
> Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
> Not an AMSAT member? Join now to support the amateur satellite program!
> To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org
----
Sent via amsat-bb@amsat.org. Opinions expressed are those of the author.
Not an AMSAT member? Join now to support the amateur satellite program!
To unsubscribe, send "unsubscribe amsat-bb" to Majordomo@amsat.org



AMSAT Top AMSAT Home