[Elecraft] [KX3] Band Plans

Bob McGraw K4TAX rmcgraw at blomand.net
Tue Aug 22 13:41:36 EDT 2017


The Tennessee Highway Patrol still maintains their state wide systems, base & mobile, in the 48/49 MHz range for this reason. 

Bob, K4TAX


Sent from my iPhone

> On Aug 22, 2017, at 12:27 PM, Jim Brown <jim at audiosystemsgroup.com> wrote:
> 
>> On 8/22/2017 9:25 AM, Charlie T, K3ICH wrote:
>> When you are operating purposely with relatively weak signals, as you go up
>> in frequency, the signal loss is much worse when you pop over a hill into a
>> small valley, which may be only a 20 to 50 feet difference in height,
>> where-as the lower freqs seem to "fill-in" better.
> 
> UHF systems were so dominant in "flatland" Chicago that I didn't realize that systems in the low VHF region below 50 MHz existed. When I moved to California, I learned that these low VHF systems are widely used exactly because of this "fill-in" property, so necessary in the mountainous terrain of much of the state.
> 
> 73, Jim K9YC
> 
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