[amsat-bb] Re: AO-51

Luc Leblanc lucleblanc6 at videotron.ca
Tue Sep 23 19:53:24 PDT 2008

On 24 Sep 2008 at 1:24, w7lrd at comcast.net wrote:

> This last pass of AO51 I could hear Luc very well.  I'm having an uplink issue.  Do we need a pl tone?  How much should I adjust for doppler?
> 73 Bob W7LRD
> --
> "if this were easy, everyone would be doing it"

Hi Bob

You don't need any tone on the 1.2GHZ uplink. I adjust the doppler here manually this way i can adjust the audio pitch and he's also quite 
fast that's why many stations are always aside and they are searching for their downlink in the QRM. I found also that i got an issue on my 
5/8" Heliax line i have a 45' run but i discover an anormal attenuation losses. I made some change in a hurry this afternoon and first 
results seems to confirm 2 possibility a faulty coax or connector jumper at the station or at the antenna or the SO-259 Heliax termination 
at one end induce a too great mismatch?

It takes nothing to ruin the signal at 1.2GHZ!


Luc Leblanc VE2DWE
Skype VE2DWE


More information about the AMSAT-BB mailing list