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 new coax cable runs

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28DR405
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coax - new coax cable runs Empty
PostSubject: new coax cable runs   coax - 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
coax - new coax cable runs GQt9BQW
coax - new coax cable runs GDpN3qq

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

coax - new coax cable runs ZtB6E1T

and doodles

coax - new coax cable runs CWJIW8m
the land lay out

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

and my present set up
coax - 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.
coax - 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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coax - new coax cable runs Empty
PostSubject: Re: new coax cable runs   coax - new coax cable runs Icon_minitimeMon Apr 06, 2020 6:45 pm

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

coax - new coax cable runs NBwYvrt

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

coax - new coax cable runs E5OCDKV
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Northern Crusader
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coax - new coax cable runs Empty
PostSubject: Re: new coax cable runs   coax - 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)

coax - new coax cable runs Choke_impedances
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