"Lars" wrote in message
ps.com...
Wonder why they don´t recommend using the switched output? It´s only a 60mA
current
draw, but maybe it is the 420mA warm up current that is the problem...

/Lars

Probably to make sure that the circuitry has warmed up and stabilised enough
by the time you switch on your transponder. I have not checked the ACK A-30
specs but it usually takes a few seconds after power-up for the circuit to
give accurate readings.

Rob