[RFI] Nice $11 Preamp for loop antenna

[David Hachadorian]

I have a WD8DSB Loop that I use as a noise sensing antenna for my MFJ 
1026 Noise Cancellation unit.  I had an ARR P1-30 20 dB preamp on the 
loop before, but gain was inadequate, so I thought I would try one of 
these 30 dB preamps from Amazon 
https://www.amazon.com/dp/B01N2NJSGV?psc=1&ref=ppx_yo2ov_dt_b_product_details

I installed the preamp in a 4" NEMA Box out at the loop yesterday, and 
powered it with an old 6VDC wall wart that puts out 9 VDC with the amp's 
minimal load.  Customer reviews say 9 VDC is the sweet spot for this 
amp.  The preamp is  giving me a ton more gain than the old ARR unit, 
and now I have plenty of noise signal to work with, even with the MFJ's 
internal preamp turned off!  The loop is located about 12 feet from the 
source of the noise (my neighbor's house), and the noise cancellation 
with the MFJ unit is spectacular!

Dave Hachadorian, K6LL
Yuma, AZ