A friend has installed a loop ++ amplifier on a bicycle wheel and is getting some success combatting local noise, but wants more signal pickup (he is using a IC7300 with second pre-amp). I've seen 2-t

Hi Chris / everyone! Chris - had your inverted U up and running now for well over a year now, and It's still cracking - I'm just wondering if you have a radiation pattern you can share? I have it on t

Hi Chris, Any news on my Multicoupler which had a spurious signals problem and I returned it to you recently? Regards, Peter G3UFI

Which is the positive on the LAA++ Bias T unit cable please? Centre or outer?

I've got an LAA++ arriving next week and have ~8 metres of URM67 coax to make a loop with. Should I just make a 1 meter diameter loop or is there a configuration that will allow me to use all of it?

Hi all. First post. I'm thinking of buying an LAA++. If I make a loop out of coax is the quailty of the coax important or does it not matter? Richard

Hi Chris, I cut the jumper but it made no difference. i then looked inside and found pressing on the amplifier IC resolved the problem. A closer check on the pins showed there was a problem with the j

Hi, I've just received a pre-owned High Z amplifier which I suspect is faulty. I found a noticable intermod on 198kHz in place of BBC R. 4. I have two local MW TXs on 1197kHz and 999kHz. 1197-999=198.

Hi Chris,I have noticed on 160 meters and the lower part of the me band I'm getting Lots of ghost signals on my radio with the loop.i first tried it with a one meter loop and also a smaller one.but th

Hi Chris. What advantage if any would a short 3-5m vertical have using the CCW High-Z amplifier compared to the same vertical using a 49:1 transformer as described by Lankford? Thanks

What Loop Size to Use for FM Band Radio? (in Meters & Feet)

Hi Chris,the loop has came.i have to say great service ordered Thursday and came Friday. I made the loop from westflex 103,one meter diameter and all I can say it's amazing.i also have a flag antenna

Hi Chris, I have a cased version of your bias tee, what is the maximum usable frequency I can use it at, I want to power a L band LNA (1.6GHz) - would your bias tee be ok at that frequency? Cheers Pau

Some time ago I bought a Loop Amp Plus with a Bias-T. At the time the Bias-T didn't come with a case. It appears now the Bias-T comes with a case. I'm curious if the cases that exist now would work wi

Evening all. After coming back to radio a couple of years ago, I've rediscovered my love for my SDR-4+. But I'm restricted to using it at home with my desktop computer and a very temporary antenna ins

Hi Chris Been trying to contact you via email but no response.. re isolation transformer..( as am moving very soon to overhead power line land down by Cornwall.) hopefully just you not getting message

Hi Chris, I have a couple of projects I want to do with the two LAA++ amps that are due to arrive tomorrow (one replacement and one new one) and one of those projects is an airband antenna. If I use t

Hi Chris Have you been able to make any progress on the Broadband Active Antenna and Multicoupler bias tee upgrades? Thanks.

Yesterday I received an email from Miloslav Hudec about his comparison review of the LAA++ against the Bonito Megaloop FX in the Czech magazine RADIO. I've used Google Translate to convert the text to

I bought one of the LAA++ kit and it arrived here in NZ in 10 days from the UK. After unwrapping the boxes I connected the amp head to my rather large aperture delta loop and connected the antenna to