Charlie Schlismann wrote:
> I need to communicate with the guys in the shop that
> pays my bills. I had the bright idea of two-way
> radios but am overwhelmed by the information I've
Only thing I can relate to it is cordless phones. Years ago (circa
1994) I was in an industrial environment of concrete block, rebar, metal
roof, etc with lots of electrical noise. A VP wanted a cordless phone
for roaming shop use. To test, I brought in a early gen cordless I had
at home. It got all of 20ft from the base before loosing it. 900MHz
phones had *just* come out, so I scored one that was returnable (Best
Buy had just come to town, wow.) It worked for a couple hundred feet
from the base, but we returned it because the volume was insufficient to
hear the thing.
Since then, there are all the 2.4 and 5 GHz phones. From what I
understand, the higher frequencies propagate further through
unobstructed air, but are worse then 900MHz at penetrating barriers.
ie: unless you're in a pasture, the old 900 is often better.
I don't know what freq's the radios work on, but I'd guess they're
similar to residential cordless phones.
HTH,
-Wayne
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