[600MRG] eProbe Instructions

[Brian Pease]

The actual antenna starts at the top of the "probe" and ends wherever 
the coax feedline shield is first solidly grounded.  Yes, most of the 
antenna is the feedline shield.  At lower (non quarter wave resonant) 
frequencies, the received signal level will increase the higher above 
the coax ground point the probe is installed.  If the shield is first 
grounded at the radio, then the active part of the antenna come right 
into the house with predictable high noise. Mount the probe well away 
from any wires a few feet above ground, and put a serious ground on the 
coax shield at the bottom of the pole.  It is useful to add common mode 
isolator chokes on both ends of the coax feedline.

On 12/21/2015 10:34 AM, Neil Klagge wrote:
> Hi David.
> The placement of the Eprobe is important. I had to place mine away from my house wiring by at least 30 feet.
>
> w0yse
>
> Sent from Neil's iPhone
>
>> On Dec 20, 2015, at 20:29, D.J.J. Ring, Jr. <n1ea at arrl.net> wrote:
>>
>> Hi group!
>>
>> Short eProbe antennas are new to me.
>>
>> I thought the antenna worked on the "Poor Antenna, but better signal/noise
>> ratio" principle.
>> But then I saw Ralph's article:  http://w5jgv.com/e-probe_antenna/index.htm
>>
>> I have an eProbe and all I hear is noise, noise, noise!
>>
>> I hear good signals when the band is good, WWV on 25, 20, 15, 10 MHz during
>> daylight nice and strong.
>>
>> Someone had told to snip the 4 inch long copper antenna until the S meter
>> did not move, then the signal / noise ratio would be good when a signal was
>> present.
>>
>> Anyone got some common sense for this type antenna - I bought it on eBay
>> from a WA3IAC chuckwa3iac
>> <http://www.ebay.com/usr/chuckwa3iac?_trksid=p2047675.l2559>
>> on eBay.  He has a small error on the PC board but he tells you how to fix
>> it.
>>
>> http://www.ebay.com/itm/Mini-Whip-active-antenna-kit-10kHz-to-30MHz-160-to-10-meter-bands-/111854469468?hash=item1a0b0bc15c:g:LAQAAOSwjVVVhGlS
>>
>> No connection in any way to his sale, just a happy buyer and would buy
>> again.
>>
>> 73
>>
>> David N1EA
>> _______________________________________________
>> 600MRG mailing list
>> 600MRG at w7ekb.com
>> http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com
> _______________________________________________
> 600MRG mailing list
> 600MRG at w7ekb.com
> http://w7ekb.com/mailman/listinfo/600mrg_w7ekb.com
>