Nope not out of service here. The 40 MHz band is used in Tennessee
today by the Tennessee Highway Patrol and Department of Safety. Look
at any of the TN black and whites and notice the 5 ft whip with the
spring and ball at the base. All of those radios are 100 watt
mobiles. And when they stop quickly it goes "swish swish swish".
Nope, propagation has not changed in that regard.
73
Bob, K4TAX
On 5/6/2019 1:17 PM, Jim Brown wrote:
On 5/6/2019 10:23 AM, Dave New, N8SBE wrote:
The other unfortunate effect of designing for police/fire/ambulance
service, is that all those radios are now VHF/UHF and up. No more HF
radios. They went out with the state-wide sheriff's networks of old
that ran on 40 MHz or so.
One exception that I'm aware of to the best post in this chain -- last
I heard (about ten years ago), that 40 MHz band was still used by the
highway patrol in California because it propagates better in the
mountainous terrain. Perhaps this has changed?
73, Jim K9YC
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