Hi Jon, It could be several things that affect the performance of your loop. The first thing I would do would be to look at the background noise level and compare it with say 80m and 30m. 80m should b

Looking at your example of a 1.2m loop it will have a full wave resonance like a quad loop at 79.6 MHz. On that frequency the maximum gain will be broadside to the loop.. At low frequencies where the

A few years back I built a prototype SDR transceiver capable of full break-in CW keying. I used it with the CW Skimmer program in the CQ WW CW QRP Assisted section to become 2nd in the UK. No one was

Good to hear that FlDigi can be used as a KISS modem. I was really disappointed when I had to remove APRS Messenger but I could find no way to run the Visual Basic 6 programming software on Windows 10

Hi Robert, Thanks for your kind comments on the antenna. I think you probably got one from the last few batches where we used 2 mm thick tube for the elements. Due to the Covid-19 situation we are lim

Very interesting. My first transistor radio back in the 1960s had the triangle in circle marks on the dial. Now I know what they were for. Regards, Chris

Thanks, Stephen! That's very useful information for the medium wave DXers ove here. Regards, Chris G4HYG

That's why I suggest adding the ground after the common mode choke built into the Loop Antenna Amplifier + so that the ground connection doesn't affect the conventional loop due to the common mode RF

With a conventional loop using the Loop Antenna Amplifier + I would ground it at the loop with a connection between ground rod and the BNC connector screen. This will ground any common mode RF noise c

Beverage antennas don't really work over salt water or beaches. They rely on the incoming radio wavefront penetrating the ground. Due to the change in the speed of light (radio) in a dielectric (soil)

Hi Kev, Good to hear that the LAA+ and bias tee board are working well for you. The bias tee in the SDRPlay receivers are really designed to work with a GPS antenna or similar up on UHF frequencies. I

#chat

The Loop on the Ground and the Beverage antennas work the same way. It relies on the incoming wavefront interacting with the ground to tilt the wavefront . This is how a vertically polarised wave can

Hi Jim, You will be surprised by the Loop on the Ground, I was. Most radio amateurs think Beverage antennas are only for LF work on 160 and 80m. This is because Beverage's original QST article in 1922

Hi Tim, We can supply a Multicoupler to work with the Beverage Antenna Amplifier. It's our standard HF Multicoupler with a bias-tee added to power the amplifier. Anyone who wants one just order a HF M

Yes the amplifier works well with the Loop on the Ground antenna. I did most of the original testing with a Loop on the Ground antenna. An interesting point I discovered is that the background noise f

The first batch of the Beverage Antenna Amplifier are now built and tested and the first orders will be shipped early next week. The amplifier can also be used with large cardioid loops, the Loop on t

Recently on the forum there has been a discussion on building large (2m or 6 foot side) cardioid loops for 160m DX operation. This needs a loop amplifier with an input impedance around 450 ohms. Today

Simon, Any relay switching the ground connection will have to be very close to the loop. This will avoid the unswitched length of wire between the loop and re;lay acting as an antenna disturbing the a

Hi Tom, The ground wire should attach to the loop side of the 9:1 transformer. Regards, Chris

Good to see that the cardioid loop is working well for you, Simon I've just updated the cardioid loop web page with a link to download a 4NEC2 file with a 2m square cardioid loop design for 160m. The