| Author |
Message |
    
Jpryorx2
Junior Member
Username: Jpryorx2
Post Number: 16
Registered: 12-2001
| | Posted on Wednesday, March 24, 2004 - 12:03 am: | 
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if your running a linear do you set your swr with the amp on or off.i have always been told to have the amp on.the reason i ask is i'm getting away fomt he illeagle side of things and sold my amp on ebay only to have the guy say it didn't work.yet i found a post where he told told another guy to set the swr with the amp off.so who is right.also would running an amp with a high swr make the relay stop keying?
thanks |
Foxracing
Intermediate Member
Username: Foxracing
Post Number: 102
Registered: 11-2003
| | Posted on Wednesday, March 24, 2004 - 6:20 am: |
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You are suppose to set the SWR with just the meter the radio and the antenna in line. With the RF power on the radio all the way up.
FOX |
Wildrat
Junior Member
Username: Wildrat
Post Number: 45
Registered: 12-2003
| | Posted on Wednesday, March 24, 2004 - 6:21 am: |
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Set the SWR with amp off, you stand the chance of taking electronic components out if you don't.
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Bruce
Senior Member
Username: Bruce
Post Number: 1091
Registered: 9-2003
| | Posted on Wednesday, March 24, 2004 - 7:04 am: |
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off |
Ozzie
Intermediate Member
Username: Ozzie
Post Number: 148
Registered: 11-2003
| | Posted on Wednesday, March 24, 2004 - 8:38 am: |
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Always with the lowest power that will read. Then bring power up and do a fine adjust.
If you're refering to using an antenna tuner it is possible and usually good practice to set it initially on receive by tuning for loudest signal or background noise. Now tune with lowest power and then with higher power. If done this way the last two should noly be a tweak and take a seconfd or two at the most. I've taught emergency service people to tune up this way for over 20 years and we have yet to lose a radio or antenna thru tuning incidents. |
Tech808
Moderator
Username: Tech808
Post Number: 1924
Registered: 8-2002
| | Posted on Wednesday, March 24, 2004 - 8:41 am: |
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ALWAYS, ADJUST / SET SWR ON ANTENNA WITH AMPLIFIER OFF
ADJUST / SET with SWR METER BETWEEN RADIO AND ANTENNA.
POWER TURNED ALL THE WAY OPEN to START THEN DOUBLE CHECK WITH POWER ON LOW AFTER GETTING ANTENNA SWR SET.
CHECK SWR on:
CHANNEL #1
CHANNEL #20
CHANNEL #40
ADJUST / SET ANTENNA FOR LOWEST SWR ACROSS ALL THREE CHANNEL's.
Hope this help's.
Lon
Tech808
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