[UK-CONTEST] 70MHz Noise level

[Rob Harrison]

Hi,

I don't think anyone was trying to say there weren't, and not only on 4M.

I'm in a semi-urban environment, houses all round , but also fields and 
farmland. To the South  the antennas are overlooking a major town. When the 
antennas are swung throught that area the noise level noticabley rises, then 
falls as they are pointing at open fields. They pose there own problems with 
electrical fences, and mobile/ comms masts to keep the farmer in credit. Add 
on the dodgey PSU's, thermostats, PC crud, baby alarms, Plasma TV's, et al, 
from the nearby houses and the noise floor is definitely worse than 20 years 
ago.

But we plough on regardless, I 've even worked Stewart a few times :0)

Bob G8HGN

----- Original Message ----- 
From: "Stewart GM4AFF" <stewart at gm4aff.net>
To: <uk-contest at contesting.com>
Sent: Wednesday, December 07, 2011 11:20 PM
Subject: Re: [UK-CONTEST] 70MHz Noise level


At last, admission of higher noise levels on 4m in G. Our transmitters up
here may be working after all!!

73
Stewart
GM4AFF


-----Original Message-----
From: uk-contest-bounces at contesting.com
[mailto:uk-contest-bounces at contesting.com] On Behalf Of Tony Collett
Sent: 06 December 2011 17:03
To: uk-contest at contesting.com; Ken Eastty
Subject: Re: [UK-CONTEST] 70MHz Noise level

I remember when I moved from Slough to here (just west of Cambridge) in the
mid 80's making the comment how nice and quite the bands are......

I wish - had an S7 noise level on 4M when I fired up the ancient gear for
the Trophy. Not much better on 2M either. Even get noise on 23cm!

73
Tony G4NBS

--- On Sun, 4/12/11, Ken Eastty <ken.g3lvp at btinternet.com> wrote:


From: Ken Eastty <ken.g3lvp at btinternet.com>
Subject: Re: [UK-CONTEST] 70MHz Noise level
To: uk-contest at contesting.com
Date: Sunday, 4 December, 2011, 21:59


>
> I was using my (converted) TS700 for the first time, and I was
> concerned that when I plugged the antenna in up at Sutton Bank, the
> noise floor didn't rise. Back at home when the antenna is plugged in,
> there is a definite increase in noise level. I must live in a noisy
environment!
>
>
> 73,
>
> Chris G4FZN
>
>

"A definite rise in noise level" is that all? With my 4m Xvter I/P
terminated I see S1, with the beam connected the noise level averages
between
S2 (North W) & S5 (S & NE), this is general noise without any apparent
spectral peaks, on top of that there are various carriers across the band
(one on 70.2!).
I wish that I'd taken some noise level readings before every house became
full of PC's & other electronic gadgets, nearby there are now several
hundred houses on what were just orchards when we first moved here. If I
struggle to copy some stations you now know why!

73...

Ken

G3LVP

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