[TowerTalk] Advice on tower restrictions possible new homepurchase

[Patrick Greenlee]

Gary, I feel your pain.  I'm on 160 acres with nearest neighbors at 1/4 
mile.  My noise floor on 20M is S-3 on my Flex 5000A with preamp off. A 
little of this is from our own stuff but the rest (by far the majority) 
is just our typical extant conditions.  The S-3 is on a Hygain Hytower 
multiband vertical with feed point about 21 ft above grade.  I'm curious 
to see what my noise situation will be when I get the SteppIR DB42 up 
about 75 ft.

Patrick        NJ5G


On 2/7/2017 9:02 AM, StellarCAT wrote:
> Although you might be able to find issues with RFI ahead of time and 
> by all means I'd do it -  I can say here at my location I didn't find 
> anything that was overly alarming from the ground. Other than one 
> power line noise issue and that kind of RFI you can generally get 
> corrected. Even when I tested my monobanders on the 'test tower' at 
> 37' noise wasn't really evident - one in one direction was there but 
> just a slight rise ... it wasn't until the main tower went up and the 
> antennas at their full height that all of this stuff showed up - noise 
> from most every direction and I'm out in the 'boonies' a bit on 11 
> acres ... its quite depressing.
>
> I now am working on a portable SDR radio and I'm going to wear a 
> construction vest to hopefully look benign when I walk up to someone's 
> house with this equipment. Besides more power line issues, now up to 4 
> different directions out to over 3000' away (one fixed, one to be 
> fixed - the worst one the Power company says is not their fault as it 
> is underground and their HV line ends before where I get the noise) 
> ... a GROW light from 700' away and at least 2 plasma TV's in 
> different directions...
>
> I miss my very nice rural location in Arizona.
>
> Gary
> K9RX
>
>
> -----Original Message----- From: john at kk9a.com
> Sent: Monday, February 6, 2017 10:02 PM
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Advice on tower restrictions possible new 
> homepurchase
>
> The all of the junk being manufactured it is becoming harder and 
> harder to
> avoid RF noise.
>
> John  KK9A
>
> To: towertalk at contesting.com
> Subject: Re: [TowerTalk] Advice on tower restrictions possible new
> home purchase
> From: Jim Brown <jim at audiosystemsgroup.com>
> Reply-to: jim at audiosystemsgroup.com
> Date: Mon, 6 Feb 2017 10:41:49 -0800
> List-post: <towertalk at contesting.com">mailto:towertalk at contesting.com>
> Also great advice.
>
> And do an RFI survey -- look for local sources of RF noise. How close are
> neighbors? Most modern homes have several dozen noise sources in the 
> form of
> battery chargers, digital electronics, and switch mode power supplies 
> built
> into equipment. Any solar systems nearby? Some are quite noisy, others 
> are
> not.
>
> What's the terrain like?  Try running HFTA on it.
>
> 73, Jim K9YC
>
>
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