rjr@mgweed.UUCP (Bob Roehrig) (07/22/85)
716-4A 715-4C 715-5C 715-5A 715-3B 715-6C 716-1C 716-1A 716-3A 716-2A 715-6A As someone correctly pointed out, the mic hanger in a mobile unit had a switch in it so when the mic was hung up the rcvr would revert to tone squelch. When the mic was removed, the set went to carrier squelch, which fulfilled the requirement to listen before transmitting. I was thinking more of base stations being the violators of this rule than mobiles. Some of the Motorola base stations had a dual paddle mic. One paddle was the PTT and the other was the carrier squelch switch which, I observed, was seldom used by the operator. We had 2 towns here 8 miles apart, whose police dept's were on the same freq. I don't think either dispatcher ever listened before transmitting. One finally went UHF and the other ended up adding a input to make their station into a repeater. This was after several years of a "power war" between them. Bob K9EUI