Thread: Walkie Talkies.
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Old July 5th, 2007, 15:12   #32
LUTNIT
 
Join Date: Dec 2005
Location: Ottawa
Quote:
Originally Posted by Scarecrow View Post
For FRS and GMRS freqs which don't bounce (like AM) you need line of sight. If you have line of sight you can make a standard GMRS radio go 10km easily (2 watts presumed), but if you have terrain blocking you your SOL.
So at games like at zone27 and the dogs pit in Montreal, when I am on the opposite side of the hill that is several stories tall, obviously completely blocking LoS and I can still transmit and receive 100% without any static with GMRS, I'm imagining things?

Quote:
Originally Posted by Scarecrow View Post
GMRS and FRS bubble pack radios wattage is set by the FCC and the CRTC, so pretty much all bubble pack radios have the same output power.
What about the differences between 0.1W, 0.5W, 1W, and 3W radios? I've had guys 100m away through brush with 0.1W radios come in all broken up. I've also had instances where someone two kilometers away in a city with a 1W GMRS can hear me clear as day (I use a 3W GMRS, at least the package says so) but his messages come in as pure static.

I've also run into situations where someone transmitting 5W on an FRS channel with one of the really nice radios just blew every FRS away. All transmissions came in as a constant tone unless they were at least 500m away through really dense brush. The further they got the more variation in the tone you could hear until you could finally make out the words.

My Motorola T7100 GMRS can transmit clear as day to someone 750-900m away (few airsoft fields will involve distances further than that, at least in the Ottawa/Montreal area) over several hills, with zero line of sight, with more than half that distance being covered with really dense brush so I'm happy with it and I snagged it for US$20 shipped off of eBay and get 40-50 hour battery life running on alkaline batteries.
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