I only made front to back measurements today. I'll measure the polar diagram on a local medium wave station tomorrow. Regards, Chris

Does it still retain the side nulls, or are they lost at the expense of forward directivity?...without the side nulls i may be in trouble here ( re smpsu noise north south direction on 1846-1850.) (

Thank you! Sorry ..the earth wire..does length mater..? Can some be horizontal..i ask as need to figure out mounting on house..out front is paved..( car parking.) Side is paved but only a walk

OK a bit of detail for you, I'll leave the detailed description of how it works for the web page, in very basic terms its a loop antenna and sense antenna in one. It's using a purple hulahoop to hold

Actually loop may not be open..there could be a coupling wire ran along the loop that the amp connects too..depending upon how long i look at pic..hmmm..

Ok U naughty man..not much help.. Hmmm..looking at a circa 1m dia loop.open at bottom.with a vertical wire running down from one side of input to amp.. I can not get any more info from the

Hi Chris, Just ordered. Looking forward to the latest version. Glad I am less likely to have an oops moment. Was having some interesting tests using separate Rx antennas with my FTDX1200 and using

OK, here's a photo of the prototype...

Hi Thank you.. Can u post a pic if you took one? To give me an idea Thanks..( i ask as Wife working till late all week, and i can play making loops without getting in trouble this week.) Simon

I did some work with the 4NEC2 antenna modelling tool to optimise the values for a cardioid loop using a Loop Antenna Amplifier +. This afternoon I built a prototype and mounted it on the 4.5m carbon

Hi Paul, I'm building a new batch so we can ship you one to arrive before the weekend. On recent batches I've replaced the twin diodes on the bias-tee or base unit output with one of the RF protection

Hi Chris, Do you have one I can get by the weekend? I think I've killed my original version by putting RF through it. Paul G0VKT

Thans Simon. Think I seen him mentioned on a DX Commander video. Cheers Kris

Thankyou Chris. I wasn't sure and didn't want to waste money buying an isolator. I suffer a fair bit of noise, use a 10m feed line of westflex 103 and loop is mast mounted at about 20 feet above

Kris Google g3txq chokes.. Simon

Hi Kris, The Loop Antenna Amplifier + has a common mode choke on the output of the amplifier to stop RF noise on the feeder getting to the amplifier. It's OK to add another one at any point on the

Hi I am using the loop amp with a RSPDX and was wondering if I could add a line isolator or would it impact on the power from the bias t ? Trying to lower the noise floor. Cheers Kris

Thanks But could you send me some details via email..may have one made before you.. Simon

I'll do some more work on it this week to measure the optimum values for the cardioid loop using a Loop Antenna Amplifier +. Once I've done that I'll post the loop design on this forum and make a

Thank you both for your replies Chris any more info on c and s loops?? Google fighting me on this! Is 6-7 m high enough? Can not go much higher with out local council/ wife issues..will be mounted