On 24 Dec 2009 at 14:52, John Papay wrote:
Date sent: Thu, 24 Dec 2009 14:52:48 -0500 From: John Papay [email protected] Subject: [amsat-bb] HO-68 Audio 24December2009 1807z FM/BBS To: [email protected]
An audio recording of the HO-68 pass over the far western USA 24Dec2009 1807z is on my webserver:
http://www.papays.com/HO-68_24Dec2009_180656z.mp3
The same scenario continues with packet competing with the voice repeater. How the two work together is not obvious but it does seem that the packet shuts down the voice repeater for a period of time. What makes the voice repeater start up again is not clear.
That's what i suspected at my first try. As soon as a packet signal is detected the TX shut off to restart with the ACK or command answer. There is a weird capture effect involved if an analog signal overwhelmed the digital one the digital retry sequences start until an ACK is received.
I cannot find any sources to confirm how things behave could be a commanding station can enlighten us?
"-"
Luc Leblanc VE2DWE Skype VE2DWE www.qsl.net/ve2dwe DSTAR urcall VE2DWE WAC BASIC CW PHONE SATELLITE