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Message |
    
Fusebreaker
Intermediate Member
Username: Fusebreaker
Post Number: 112
Registered: 3-2004
| | Posted on Sunday, September 04, 2005 - 3:28 pm: | 
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I want to know if i understand this correctly,
Say i am talking on a 4 watt radio and the station hearing me is rx me at 1 s unit if i reach down and flip my amplifier on and its set to a 64 watt carrier then they will then have a 5 s unit copy on my radio if i bump it to 1024 watts they will hear me at 9 s units is this right or is this wrong im trying to learn this s-unit stuff |
Hollowpoint445
Advanced Member
Username: Hollowpoint445
Post Number: 735
Registered: 6-2004
| | Posted on Sunday, September 04, 2005 - 5:23 pm: |
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To increase the received signal 1 S unit the power needs to be increased 4 times (a 6 dB increase). That assumes that the receiver has been properly calibrated - which it probably hasn't - and there is nothing in between the two antennas that could interfere with the signal. If there is a hill between the two then your actual results could and probably will vary a great deal.
So if you increase the carrier from 4 to 64 watts the increase will be 2 S units and from 4 to 1024 would be 4 S units.
To increase the signal 8 S units you would need to use a carrier of 262,144 watts.
To hear someone well their signal only needs to be slightly above the background noise level. Using more wattage than that is not necessary, a waste of power, and added pollution to the already crowded airwaves on the 11 meter spectrum. |
Bruce
Senior Member
Username: Bruce
Post Number: 3099
Registered: 9-2003
| | Posted on Sunday, September 04, 2005 - 6:10 pm: |
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to go to "S" 2 you need to go to 16 watts to "S" 3 you need 64 to "S" 4 you need 256 and "S" 5 1024. |
Patzerozero
Senior Member
Username: Patzerozero
Post Number: 1390
Registered: 7-2004
| | Posted on Sunday, September 04, 2005 - 10:48 pm: |
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double your power, then double it AGAIN, & you will have a 1 S-unit increase. continue the process for more S-units
oh-that's what bruce said
or just be safe & run 10 or 15 thousand watts all the time
sorry |
