Bob, Some external preamps like to put a couple diodes back to back on the input to prevent blowing out the preamp, they will rectify his signal and create hash, it wont hurt anything but will interfere. You would have to look at the schematic of your rig to see if it has similar front end protection. My HF vertical is 50 feet from my sat antennas and 120 feet from another set of sat antennas and I get into both and create a wideband hash with 100 watts, 500 watts totally wipes out sat reception. I have been running this way for years and have yet to damage a preamp or rig. I have had no issues with rotor cables but I do have some clamp on ferrites on them. YMMV 73 Kevin WA7FWF
On 10/24/2019 06:11, Bob Hammond via AMSAT-BB wrote:
My neighbor has a HF vertical (10/15/20 meter trap) that is about 30 feet from my 2M/70/cm/23cm satellite antennas.
He currently runs 100W and is planning on going to 200W.
Should I be concerned? Will the RF get into my feed lines and blow up my rig? Or into my antenna rotor cables and fry my controller?
I am still in construction mode for my satellite ground station.
Bob W7OTJ. _______________________________________________ Sent via AMSAT-BB@amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb