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 Will a good Coax lower noise

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TJS 26CT3029
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TJS 26CT3029

Call Sign : 26-CT-3029
Posts : 62
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Join date : 2019-11-29
QTH or Location : Dudley
Equipment Used : President Mckinley CTR SS6900 cobra 29 ltd st Fidelity CB 3000FM Ham international multimode 2 Imax 2000
Age : 44

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PostSubject: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeMon Dec 14, 2020 9:23 am

I am using rg8 mini run of 24 foot I am getting 7 on the noise meter will a better coax lower it Thx
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Alan Pilot
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Equipment Used : Yaesu FT-991A,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+.

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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeMon Dec 14, 2020 9:56 am

I think it's more down to electrical devices close by.
This subject has been covered many times before.
Phone chargers cctv solar panels the list goes on.
A good start would be a car battery to run your radio and turn the mains off.
That would say if it's your gadgets or your next door if you get what i meen.

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TJS 26CT3029
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TJS 26CT3029

Call Sign : 26-CT-3029
Posts : 62
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Join date : 2019-11-29
QTH or Location : Dudley
Equipment Used : President Mckinley CTR SS6900 cobra 29 ltd st Fidelity CB 3000FM Ham international multimode 2 Imax 2000
Age : 44

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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeMon Dec 14, 2020 11:27 am

Just tried it mate still around 6 and 7 nobody lives next door something wrong someway
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Alan Pilot
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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeMon Dec 14, 2020 12:22 pm

Have you got an earth on it.
I use a 4ft earth rod in the ground almost all the way and everything is earthed to it.
Don't know if that makes it better but with it and 12v LED lighting in the shack i have around .5 to 1 S point on most bands.
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TJS 26CT3029
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TJS 26CT3029

Call Sign : 26-CT-3029
Posts : 62
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Join date : 2019-11-29
QTH or Location : Dudley
Equipment Used : President Mckinley CTR SS6900 cobra 29 ltd st Fidelity CB 3000FM Ham international multimode 2 Imax 2000
Age : 44

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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeMon Dec 14, 2020 1:00 pm

I going have look in to getting earth rod mate i think its the imax  fm is ok get around 4 but side band it can double
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Alan Pilot
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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeMon Dec 14, 2020 1:12 pm

It can be hard to trace but i am sure someone will come along with more ideas.
Never had the imax but plenty on here have them so fingers crossed for a better answer.

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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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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeFri Dec 18, 2020 6:20 pm

TJS 26CT3029 wrote:
I am using rg8 mini run of 24 foot I am getting 7 on the noise meter will a better coax lower it Thx

No, in fact it may even make it worse.

One of the biggest sources of noise is common mode RFI caused by a poor RF ground meaning your coax forms part of the antenna as the antenna system tries to compensate.

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Northern Crusader
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Call Sign : M0GVZ / 26CT1760
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Join date : 2019-11-13
QTH or Location : IO94SA
Equipment Used : Icom 7300, TS480, President McKinley, Albrecht AE6110, CRT Mike
Age : 51

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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeFri Dec 18, 2020 6:21 pm

Alan Pilot wrote:
Have you got an earth on it.
I use a 4ft earth rod in the ground almost all the way and everything is earthed to it.
Don't know if that makes it better but with it and 12v LED lighting in the shack i have around .5 to 1 S point on most bands.

A ground rod does nothing as a RF ground. The wire to it is doing more than the ground rod is.

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Alan Pilot
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Alan Pilot

Call Sign : 163-CT-220...MW7TTA
Posts : 1151
Times Thanked : 31
Join date : 2019-11-19
QTH or Location : Anglesey North Wales
Equipment Used : Yaesu FT-991A,,Icom ic-7300,,Anytone AT-D878UV PLUS",,LINCOLN II+.

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PostSubject: Re: Will a good Coax lower noise   coax - Will a good Coax lower noise Icon_minitimeSat Dec 19, 2020 7:08 am

Northern Crusader wrote:
Alan Pilot wrote:
Have you got an earth on it.
I use a 4ft earth rod in the ground almost all the way and everything is earthed to it.
Don't know if that makes it better but with it and 12v LED lighting in the shack i have around .5 to 1 S point on most bands.

A ground rod does nothing as a RF ground. The wire to it is doing more than the ground rod is.
Was just saying what i did and i got rid of most of the noise.

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