Hi Bob these questions would be better answered at the TowerTalk group at contesting.com. When I build my last house I asked many questions about grounding there. When I was having the house built I actually took into account, from the ground up(pun intended) a grounding system. Lots of good knowledgeable people there...
73 Jeff kb2m
-----Original Message----- From: AMSAT-BB [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Bob Hammond via AMSAT-BB Sent: Thursday, October 24, 2019 11:26 AM To: Kevin Cc: amsat-bb@amsat.org Subject: Re: [amsat-bb] Proximity of HF vertical to my satellite antennas
Thanks all.
What do you all do for a station ground and lightning protection?
Bob W7OTJ
On Thu, Oct 24, 2019 at 8:00 AM Kevin via AMSAT-BB amsat-bb@amsat.org wrote:
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.
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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
_______________________________________________ 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