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[aprssig] Homebrew transmitter

VE7GDH ve7gdh at rac.ca
Tue Aug 29 16:18:10 UTC 2006

Stephen N1VLV wrote...

> Ok on the channel busy thing, makes perfect sense now that I think
> about it. But in the case of an open tracker, which is encode only,
> does it know when or when not to transmit, in the case of the channel
> being busy for example?

Devices like the OpenTracker and TinyTrak don't decode received data,
but they do listen for a signal and hold off transmitting while there is a
signal present. I would say go for your project, but make it a homebrew
transceiver instead of just a transmitter - unless it is in the sub-Watt 
range. Either way, you will have more success if you listen before 
transmitting. There will always  be perfect doubles, but at least you can 
get your end to hold off when you know for sure there is already someone 

73 es cul - Keith VE7GDH
"I may be lost, but I know exactly where I am!"

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