Our system dispatchers played around with wireless head/mic sets for awhile
and finally settle on using a Motorola system using 450Mhz HT's and a
receiver slaved to the console. They dumped the system when it became a
nuisance. The problem was that the rx/tx switch over time added to the
console keying time caused a significant increase in "doubling" and the
resultant confusion. They've now gone back to the ear-piece/tube mic. A
full duplex system would be much better but my telecomm engineer says he
hasn't found one on the commercial market........
Gary K7FR
--
CQ-Contest on WWW: http://www.contesting.com/_cq-contest/
Administrative requests: cq-contest-REQUEST@contesting.com
|