Well, a big thumb up the nose to the HOA on that one, Big Daddy.I though that Chameleon kept running all over, changing colors, and hiding out in the back yard.
Didn’t completely thumb my nose at them. It’s only 12’ high.
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SWR Mystery
- Thread starter Riverman
- Start date
Didn’t completely thumb my nose at them. It’s only 12’ high.
Boy this could go in many different directions
- - Can a Chameleon change it's colors? Just don't ask it to do Plaid!
Ok, it's not really too bad, but your reversal - knowing now that you're running an AMP - changes a few aspects, but again - your match SWR is not too terrible so take this as some info on what you're encountering...
Ok, your SWR meter - and where it's positioned in line - AFTER the Amp, it senses a slight mismatch...
- The Antenna APPEARS longer - an Inductive factor
- The Antenna now appears SHORTER - a Capacitive factor
So then, to answer this question...
I am glad this came up...
So the only other question I have to ask you to help solve this and give a real world true answer - requires you to remove the amp and check SWR with Meter setup the same way in the other two tests - Radio thru 3 foot jumper to Meter then onto THE ANTENNA - what is the SWR?
If the SWR is in between the two - you just have a minor mis-match between the amp and the radio - affecting the SWR overall in the system - although not a big deal here it does help. Because this info - can help ANY tech in putting the right parts into the amp to cancel out the SWR bumps effects caused by input mis-match.
Here I am building up to a great answer and then this...
Added 12’ to my coax and problem went away. All’s good now.
"...If any of your operatives are caught or killed, the Secretary will Disavow any knowledge of your actions...
WOW...
Sigh...
Boy this could go in many different directions
But now we have a better answer to this...
- - Can a Chameleon change it's colors? Just don't ask it to do Plaid!
Ok, it's not really too bad, but your reversal - knowing now that you're running an AMP - changes a few aspects, but again - your match SWR is not too terrible so take this as some info on what you're encountering...
Ok, your SWR meter - and where it's positioned in line - AFTER the Amp, it senses a slight mismatch...
Then Positioned BEFORE the amp - between the RADIO and AMP - gives us this...
- The Antenna APPEARS longer - an Inductive factor
- The Antenna now appears SHORTER - a Capacitive factor
So then, to answer this question...
I am glad this came up...
So the only other question I have to ask you to help solve this and give a real world true answer - requires you to remove the amp and check SWR with Meter setup the same way in the other two tests - Radio thru 3 foot jumper to Meter then onto THE ANTENNA - what is the SWR?
If the SWR is in between the two - you just have a minor mis-match between the amp and the radio - affecting the SWR overall in the system - although not a big deal here it does help. Because this info - can help ANY tech in putting the right parts into the amp to cancel out the SWR bumps effects caused by input mis-match.
Here I am building up to a great answer and then this...
"...If any of your operatives are caught or killed, the Secretary will Disavow any knowledge of your actions...WOW...
Sigh...
The reversals went away. The SWR’s at the radio are slightly lower overall than the ones at the meter now, but are no longer polar opposites.
At radio:
1:26 on CH 1
1.07 on Ch 20
1.22 on Ch 40
At the meter:
1.34 on CH 1
1.20 on CH 20
1.31 on CH 40
My 801HP was far from the truth before I calibrated it. SWR and power readout was lower than reality.
Mike
Now its acting as it should,
extending the coax gives you the same curve with a little lower vswr,
when you see significant change adding a 6ft or any other length short jumper you have cmc on the coax or you added a very lossy jumper.
extending the coax gives you the same curve with a little lower vswr,
when you see significant change adding a 6ft or any other length short jumper you have cmc on the coax or you added a very lossy jumper.