[Lowfer] LOWFER Receivers and Antennas

[Pat Bunn]

I use a R75 with a Clifton Labs active probe located about 150 yards from the house with two of Jack's recommended common mode chokes grounded as Jack recommends. The common mode chokes make a tremendous difference in reducing local manmade noise. I use a 9 pole low pass filter to eliminate BCB  overload. Sometimes I use a GPS disciplined up converter depending on where in the LF band I am listening. I plan to add GPS disciplining to the R75 per W1VD when I get time.

Pat
N4LTA
WG2XCT
WG2XLP

Sent from my iPhone

On Oct 6, 2013, at 9:44 AM, Ben Hall <kd5byb at kd5byb.net> wrote:

> Good morning all,
> 
> I've been in lurk mode here for many months.  I had not seen the topic of receivers come up - if it did, I sure missed it!  I have seen some discussion on antennas from time to time.
> 
> I'm curious to what people are using as a LOWFER receiver and antenna.
> 
> I have small collection of receivers here - a Navy RBL-3, a Navy RBA, a Rycom Selective Level Meter (6040 I think?), plus have used the Jackson Harbor LF up-converter with my Elecraft KX3 and even one of those USB dongles with both the 4 MHz up-converter and a 125 MHz up-converter.
> 
> For antennas, I've been using a slightly-modified PA0RDT mini-whip, and have a N7ZWY active short monopole ready for testing as soon as the thunderstorms move out of the area.
> 
> thanks much and 73,
> ben, kd5byb
> 
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