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Author Topic: power.  (Read 347 times)
KI6LBE
Member

Posts: 21




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« on: July 01, 2009, 02:00:31 AM »

can a radio w/ more power go farther than a radio w/ less power if the 2 are put side by side considering the 2 have the same antenna?
thanx
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NA0AA
Member

Posts: 1043




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« Reply #1 on: July 02, 2009, 09:35:16 PM »

The answer is a qualified 'yes'.

Keep in mind that if you can talk to the antipodes on 100 watts, 1,500 watts won't talk you any farther - unless you are doing moon bounce.

However, there are times when the 10 to 13 DB afforded by a QRO [legal limit] amplifier can improve your SSB phone work quite a bit - when the band is very noisy, or the path is weak or one station has local QRM.

Each doubling of power is 3 db, where an increase of 3 db is effectivly twice as loud.  6 db used to equal one 'S' unit.

People have different views - some amateurs consider 6 S units over noise to be not quite enough and want to be 20 db over 9.
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