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 Loads of noise!!!!

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Andybron
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Call Sign : 26-CT-989
Posts : 22
Times Thanked : 0
Join date : 2020-01-13
QTH or Location : Clacton on sea essex
Equipment Used : CRT ss9900 with solarcon aerial
Age : 54

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PostSubject: Loads of noise!!!!   Loads of noise!!!! Icon_minitimeTue Feb 18, 2020 8:22 pm

Hi all by me cable tying my coax to my aerials steel poles would that cause interference as on ssb I’ve got a constant s7 of rubbish and on fm s3-5 !! Antron 99 is up on 12ft steel poles and about 2 sections of it are above the house.radio is a ss9900 all brand new.ive tried turning everything electrical off in the house but makes no difference.Any ideas please or do I just need to put the aerial even higher?? Thanks 👍👍👍
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Andybron
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Call Sign : 26-CT-989
Posts : 22
Times Thanked : 0
Join date : 2020-01-13
QTH or Location : Clacton on sea essex
Equipment Used : CRT ss9900 with solarcon aerial
Age : 54

Loads of noise!!!! Empty
PostSubject: Re: Loads of noise!!!!   Loads of noise!!!! Icon_minitimeTue Feb 18, 2020 10:09 pm

Could it be that I am
Only 50 metres from a private airport and the planes fly directly over my house? I can only shoot so many of them down🤣🤣soon as weathers better I am going to take it down as I think I only tightened the sections hand tight.....could this be the problem??? The swr is fine
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Mitch
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Mitch


Call Sign : M1TCH
Posts : 64
Times Thanked : 8
Join date : 2020-01-02
QTH or Location : Leicester
Equipment Used : Yaesu FT-857D, Diamond V2000, Major 3000, President Jackson Mk1, Lafayette AFS-1005, K40 mic, KL203, B550P and Sirio GPE 27 ⅝λ.

Loads of noise!!!! Empty
PostSubject: Re: Loads of noise!!!!   Loads of noise!!!! Icon_minitimeWed Feb 19, 2020 11:19 am

@Andybron

Can you get the aerial further away from the house? I used to get s7-9+ of noise with the aerial mounted on the house, I put it on the garage 20 foot away and it dropped to s1. I can only assume the noise is carried along the mains wires, even if your house is not making any QRM, the neighbours could be producing shed loads of it. The only way is to get as far away from any mains wiring as you can.
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26TC62
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26TC62


Call Sign : 26TC62, 26CT2817
Posts : 141
Times Thanked : 29
Join date : 2019-06-27
QTH or Location : Portsmouth
Equipment Used : Yaesu 891, 10m pole, wire 5/8, T2LT

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PostSubject: Re: Loads of noise!!!!   Loads of noise!!!! Icon_minitimeWed Feb 19, 2020 3:28 pm

From my own experience, getting the antenna a few feet more away from the house can make a big difference. I use an Ampro whip on my garden fence. It started off about 10 feet from the back wall of my house, S7 QRM constantly. I tested it about 30 feet away from the back of my house and it is still S3 but at least I can hear and work something.

The other thing I am going to do is try a horizontal antenna for DX working - the "conventional wisdom" is that most domestic noise is vertically-polarized. I have never seen anything which backs this up properly, but it will be easy enough to test. I will be putting my Gainmaster copy up horizontally at about 15 feet, running away from the house to put it in the "null" and we will see what happens.
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Andybron
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Call Sign : 26-CT-989
Posts : 22
Times Thanked : 0
Join date : 2020-01-13
QTH or Location : Clacton on sea essex
Equipment Used : CRT ss9900 with solarcon aerial
Age : 54

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PostSubject: Re: Loads of noise!!!!   Loads of noise!!!! Icon_minitimeWed Feb 19, 2020 6:22 pm

Ok thankyou all will try it away from the house n see what that brings first
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PostSubject: Re: Loads of noise!!!!   Loads of noise!!!! Icon_minitime

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