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Call Sign : 163-CT-220...MW7TTA Posts : 437 Times Thanked : 12 Join date : 2019-11-19 QTH or Location : Holyhead Equipment Used : Yaesu FT-991A.
Subject: Re: Will a good Coax lower noise Mon 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.
Call Sign : 163-CT-220...MW7TTA Posts : 437 Times Thanked : 12 Join date : 2019-11-19 QTH or Location : Holyhead Equipment Used : Yaesu FT-991A.
Subject: Re: Will a good Coax lower noise Mon 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.
Call Sign : 163-CT-220...MW7TTA Posts : 437 Times Thanked : 12 Join date : 2019-11-19 QTH or Location : Holyhead Equipment Used : Yaesu FT-991A.
Subject: Re: Will a good Coax lower noise Mon 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.
Call Sign : M0GVZ / 26CT1760 Posts : 320 Times Thanked : 23 Join date : 2019-11-13 QTH or Location : IO94SA Equipment Used : Icom 7300, TS480, President McKinley, Albrecht AE6110, CRT Mike Age : 50
Subject: Re: Will a good Coax lower noise Fri 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.
Call Sign : M0GVZ / 26CT1760 Posts : 320 Times Thanked : 23 Join date : 2019-11-13 QTH or Location : IO94SA Equipment Used : Icom 7300, TS480, President McKinley, Albrecht AE6110, CRT Mike Age : 50
Subject: Re: Will a good Coax lower noise Fri 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.
Call Sign : 163-CT-220...MW7TTA Posts : 437 Times Thanked : 12 Join date : 2019-11-19 QTH or Location : Holyhead Equipment Used : Yaesu FT-991A.
Subject: Re: Will a good Coax lower noise Sat 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.
Today at 6:13 pm by 
Subject: Will a good Coax lower noise 
