Hi Keith, Good to hear that you like the LAA+. I had a quick listen to your Kiwi SDR and your antenna is working well. I'm not in the workshop so I don't have detailed figures to hand but I think that

First off can I say the LAA+ is just a WOW little box of tricks and well worth the money, a big thumbs up to Chris .... I have an LAA+ running with a 1m loop of 10mm copper tube and the supplied 5v

Actually thats not correct is it!! Opps..one would need to chop the loop and add a resistor.. Still make both and see.. Opps ..Simon

If were you i would build the 1m dia loop..no vertical wire..try it..then to make cardioid just add the wire..and compare.. Dont forget though deeper nulls with standard loop..( useful if have strong

Hi Jakko, 1 mm copper wire will work OK. The prototype I built uses the 1 mm wire I supply with the LAA+. A 80 cm loop will work well as a cardioid loop. Regards, Chris

Hi Gerard, The cardioid loop will work with the VLF version of the Loop Antenna Amplifier. A triangular loop will be OK as long as the resistor is directly opposite the feed point. The 110 ohm

Thank you so much Paul, I am waiting for my laa+ amplifier to arrive. I think i will go with the "cardioid loop" of Chris. happy listenings :)

Chris, thank you so much for this great idea! I have the CCW on the way to my home and meanwhile i will build this loop. I have a copper wire of 1mm. Do you think it's suitable? Again, i can build a

This is a very interesting loop Chris. In your opinion, will the results be similar with the VLF version of the Loop Antenna Amplifier + that I have? Or should the value of the resistor be adjusted

Hi Chris.. How critical is the max height? As in i want to raise to above house gutter..which will be circa 6m ..( to see if clears local noise.) Also wondering ..radiation pattern suggests it

Recently I've been working on using a Loop Antenna Amplifier + to make a cardioid loop antenna. I've already posted a few comments about it in one of the recent topics. I've now written it up as a new

Hi Jekko Sorry no-one's come "out of the woodwork" until now. It depends what you want to do with it. Personally, I have made and use an inverted "Delta Loop," using 2mm galvanised steel wire rope

I should get the web page detailing the cardioid loop finished tomorrow evening UK time. I'll confirm if a short counterpoise works tomorrow. The improvement in signal to noise ratio over a

Sorry you say that possibly 1m of wire hanging down will do the job ( maybe.) do you mean just 1m of wire from loop? Oh did you notice any increase in electrical pick up via the sense antenna?(

Hi Chris Thanks for info.. If you get the time could you upload a rough hand drawing of your prototype cardioid loop..espically the sense wire..ie how long was yours and how was it terminated at

I hadn't spotted that that reply was going to the group. Here's a tidier version of the cardioid loop polar diagram I measured today: I'm working on a web page to show how to make a cardioid loop

Hi Simon, I plotted the antenna pattern today. I used a strong medium wave station in ground wave range as a source and turned the antenna making signal measurements every 20

Hi Chris did you have any time today to do measurements? also..been thinking..( a bad thing maybe.)..if the directional loop can not null out the smpsu noise here in the direction i want the antenna

Hi Thank you.. See below for really poor drawing of plan of house..end of terrace.. As you can see not much room.. 160-80 loop and 40m loop are the tx mag loops. The 10-40m dipole is inverted v at

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