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28DR405
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PostSubject: new coax cable runs   new coax cable runs Icon_minitimeMon Apr 06, 2020 6:37 pm

been in the garden this weekend twiddling with my twigs. i have four points and each one has its own cable and all run to the shack (upstairs back bed room)

Anyway as you do I have been installing each one with what i think is the best coax for the job and the best i could afford. I am happy with it all, swr is low and noise is good too.
Where I wonder is like a lot of others is with the RF Gnd.

what i have at the moment is a seperate ground running 16mm2 earth cable to a fixed earth ground bar with bulkhead connectors running through it. All the feeds terminate into it and small leads run to the radios or i can go direct to the radio if i wish.

heres some pictures
new coax cable runs GQt9BQW
new coax cable runs GDpN3qq

heres a rough lay out of the cable runs in the garden

new coax cable runs ZtB6E1T

and doodles

new coax cable runs CWJIW8m
the land lay out

new coax cable runs 6jEzuZd
present cable runs in use HF and U/VHF

and my present set up
new coax cable runs If06BuB

that just leaves the questions how good is it and can it get improved or made safer?

for lightning i just disconnect every thing
for RF gnd its okay i think but what do i know?
maybe i should have the lot grounded at scource and then run to the shack.
new coax cable runs CTYhIMV

what do you think of it?


Last edited by 28DR405 on Mon Apr 06, 2020 6:46 pm; edited 1 time in total
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28DR405
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PostSubject: Re: new coax cable runs   new coax cable runs Icon_minitimeMon Apr 06, 2020 6:45 pm

2/70/6 set up with a dirty air balun coil

new coax cable runs NBwYvrt

G5RV feed point on the right, cables loose due to house painting
new coax cable runs 3MWaTVl
new coax cable runs XrFghQb

should i do a air coil balun at the bottom of the 10m/11m, no other reason , than, i have spare cable to do so

new coax cable runs E5OCDKV
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Northern Crusader
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Call Sign : M0GVZ / 26CT1760
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Equipment Used : Icom 7300, TS480, President McKinley, Albrecht AE6110, CRT Mike
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new coax cable runs Empty
PostSubject: Re: new coax cable runs   new coax cable runs Icon_minitimeFri Apr 10, 2020 6:55 pm

You need a RF choke on the 10/11m antenna much more than the 6/2/70 one.

4.25"/110mm former (ground waste pipe is perfect) and 5 turns of coax around it.

Courtesy of Steve G3TXQ (sadly SK)

new coax cable runs Choke_impedances
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