[Elecraft] [KX3] Band Plans

[Walter Underwood]

The California Highway Patrol holds on to their 47 MHz frequencies for the same reason.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Aug 22, 2017, at 10:41 AM, Bob McGraw K4TAX <rmcgraw at blomand.net> wrote:
> 
> 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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> 
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