Handheld Problems

Many of the problems posed by handheld radios are really antenna limitations.

I am not surprised at the results from the various tests conducted in “Rescue Heroes?” [Instrument Check, March]. All of the shortcomings reported are exactly what an experienced communications technician would expect.

A handheld transceiver has very limited transmit power. Most of them use a different method of stating transmit power, stating peak envelope power rather than “carrier power” as used by panel mounted transmitters. That means there is approximately 1 watt of carrier for a hand-held rated at “5 watts” – a substantial reduction in transmit range compared to your No. 1 com.

Even more telling is the hand-held antenna system efficiency compared to a “real” antenna mounted on...