To: | "LF-Group" <[email protected]> |
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Subject: | LF: QRSS by PA0SE |
From: | "Dick Rollema" <[email protected]> |
Date: | Sat, 13 Dec 2003 00:11:05 +0100 |
Reply-to: | [email protected] |
Sender: | <[email protected]> |
To All from PA0SE The coming night 13/14 December I would like to try QRSS for the first time. The transmitter I use has been built and used by Harry, PA0LQ. Output power 300W, aerial current 3A. I have recently measured radiated power to be of the order of 100 milliwatt. So chance of success is rather remote. But one never knows. There may be a problem though. The TX is controlled by a VFO at ten times the transmit frequency and some frequency drift is unavoidable. If this really is a problem I will ask Harry to modify the transmitter so that the VFO can be replaced by the Wandel & Goltermann SPM -12/SP-12 combination. The output of the SP-12 can be frequency locked to a crystal. Any remaining drift will be reduced by a factor of ten. But for a first effort I would like the TX as is. As I am new to QRSS I have some questions: 1. What frequency to be used. 2. What speed to be used. 3. At what times transmission to be started and finished. 73, Dick, PA0SE |
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