[1000mp] Band Data Connector

Win w0lz at winlyn.us
Fri Jul 29 11:08:13 EDT 2005


Pins 2 and 3 of the Band Data connector are connected to a transistor switch 
driven by the same voltage that activates the TX GND relay.  I have read in 
the past of people using this transistor switch to key amplifiers.  I am 
currently using the TX Gnd relay with an external transistor switch for this 
purpose.  Using the transistor switch would take out a 10 to 15 ms relay 
delay, allow me to turn off the relay eliminating the noise, and greatly 
improve QSK operation.

My question is, does anyone have any idea of the voltage and current 
limitations of this transistor switch?.  The circuit that I am switching is 
about 125 volts without load and is 100 volts at 80 ma loaded.  My gut 
feeling is that it should be no problem.

Win, W0LZ 



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