[Amps] *** SPAM *** Re: Titan 425 Reflected Power

[Peter Chadwick]

>External loops that affect the meters unequally with power 
would never occur.<

Had one on an oil rig installation in the early '70s. Operating at 2MHz (roughly), the SWR varied with the linear on and off - that was using both a Bird and SWR meter made in house, which was a Bruene type. Suspecting harmonics, I tried an extra LPF to no avail. Fixed it in the end by ferrite rings on the coax feed to the antenna tuner, but I had suspicions we had a rusty bolt effect somewhere to explain the non-linearities. I tend to use ferrite rings on the tuner feed coax anyway, although my tuners are all remote.
73 Peter G3RZP