The other thing to keep in mind is there is a big difference between a
dc ground and an rf ground. Particularly, the length of the wire.
73
Butch Bussen
wa0vjr
open Node 3148
Las Vegas
On
Mon, 1 Mar 2010, Steve Forst wrote:
> Junior,
>
> I don't think it's really possible for Joe Average ham to measure the actual
> resistance to the earth using a regular ohm meter. I think power
> companies and others who need to get things down to that last fraction of
> an ohm, use something called a "Megger" to measure actual ground resistance.
>
> You seem to be well grounded and maybe should look elsewhere. You
> mentioned yesterday you were trashing your neighbors DSL. If that is the
> only RF problem, maybe you should attack it there. Ferrites on the phone
> line and the wall wart power supply for the DSL modem might help.
>
> If you prefer trying to fix it from your end: Do you have a low pass filter
> in line? If not, maybe borrow one and see if it helps, if you already have
> one, try removing it and test things. If you have some excess coax in
> your feed line, try winding a choke balun. 6 or 8 turns around a six inch
> diameter and held in place with tape or zip ties. If possible, wind right
> at the place where the coax terminates to the ladder line of your G5RV. You
> will need roughly 20 feet of extra coax, depending on the type of coax you
> are using.
>
> If there is no excess feed line, just get a length of coax with the proper
> connectors or adapters and insert it in the feed line. There are chokes,
> baluns, and line isolators you can buy, but no sense spending money until
> you are sure it will solve the problem.
>
> Good luck, Steve KW3A
> ----- Original Message -----
> From: "Junior Lolley KG4ITD" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Monday, March 01, 2010 6:38 AM
> Subject: need info
>
>
>> I have been having rf problems on 75 and 80 meters.
>> I am grounding my system even more.
>> I added some grounding yesterday and the ohm meter says the reading is
>> 0.23.
>> How much more do I need to lower the reading?
>> Or is this ground alright?
>> Any help is appreciated.
>> I am using 4 eight foot ground rods tied together with 6 gauge stranded
>> copper wire.
>>
>>
>> Junior Lolley KG4ITD Liberty County E. C.
>>
>
>
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