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Old October 24th 08, 07:24 PM posted to rec.radio.amateur.homebrew,rec.radio.amateur.antenna,sci.electronics.design,rec.radio.amateur.equipment
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Default 868MHz Propagation problem

Anthony Fremont wrote:
dgleeson422111 wrote:
\ What we have repetadly found is that the radio in the office can
receive long after the radio in the street has stopped receiving. (The
person with the radio in the street is moving away from the office.)

The radios are the same and the power supplies to the radios are the
same. Indeed switching the radios gives the same effect.


The radio outside is likely being desensitized by some other signal.



Most likely scenario.

Also make sure that in your design you are powering down the transmitter
fully in the receive mode. In some radios there can be a residual
carrier from the PLL causing self interference ar interference to other
nearby nodes.

--
Joe Leikhim K4SAT
"The RFI-EMI-GUY"©

"Treason doth never prosper: what's the reason?
For if it prosper, none dare call it treason."

"Follow The Money" ;-P
 
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