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Hi Homer, risking that I might be stating what you aready know but ,the insulated tube inside tube mount also adds capacitance across the feedpoint and is critical to the match.
Back in the seventies (broke kid at the time) I duplicated a friends ringo. All the external diamentians matched but...
You dont want a NVIS signal lobe on 11m .Dipole is going to work a lot better at 15 ft than 6 . Impedance be buggered !!! The difference between 50 and 70 ohms is negligible. Anyway horizontal dipole has to be high and in the clear to see 70 -72 ohm At 1/2 wave I typically see 65 - 68 at...
Mate you have to recalibrate when you increase power or the reading will be high.
Issue with the fans is most likely CMC, as Bob said .the choke should fix most if not all of it. rerouting the coax away from the leg wont hurt either .
It should work.But you might need more drive to get FSD . I.E you might need 20w to get it to read 10. .
Thinking if it is a dual range 10 and 100 you will have 4 trim pots ( variable resistors ) 2 for each range fwd and reverse. Would be real easy to recalibrate.
Depends on the layout of...
The math isn't hard. LiFePo4 are rated in capacity and discharge rate. IE 4000 mah (4amp hour or 4 amp draw for 1 hr) Discharge 20 c or in other words 20 x 4amps, So you can pull 80 amps discharge.
Now if your total draw is 14 amps on tx ,And we will assume you draw no more than 1 amp on...
No worries. Might pay to go back and check all your leads fuses etc.Check the voltage at the radio ,doesn't take much loss to drop the power at those levels.Dirty fuse holder or dry solder joint can easily account for it.Also check the PSU, is there much voltage drop on TX.?
Mag mount and 100ft of coax ! real good chance your picking up something in your own home.
Coax is most likely hot and acting as a pickup for the noise. (that pesky CMC again)
Moving your mag mount or rerouting the coax would be worth a try. Fit a ground wire and or radials , does the noise...
No the line attenuation will only result in a slightly lower reading. (like maybe 1.1 to1 to 1.2 to 1 ) and that would be the same no matter what power you used.
If you have a long enough run of cable even an open circuit will show 1 to 1. Used to see that all the time with poor commercial VHF...
Wonder if it's related!
"June 30, 2017 @ 16:30 UTC Possible Earth Directed CME A weak coronal mass ejection (CME) observed on June 28th is predicted to possibly deliver a glancing blow to our geomagnetic field by July 2nd. A minor geomagnetic disturbance may be possible at higher latitudes."
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