Category Archives: Ask Dave

Here’s a review of the MFJ-1835H (high power) cobweb antenna. It has a very small footprint and can be a great stealth antenna. I found myself really liking it. Join me for unboxing, assembly, and testing. If you have limited … Continue reading →

Here’s my review of the Chameleon P-Loop magnetic loop antenna. I show some use cases for which this antenna is particularly suited. The video provides lots of info about the antenna. Thanks to all who participated in my tests last … Continue reading →

Give me a hand testing the Chameleon P-Loop. I’ll have it set up under portable conditions on Saturday, May 27th, from 10 a.m. to noon US Mountain Daylight Time. I’ll be calling CQ on phone around the bottom of the … Continue reading →

Michael Lloyd, NE5U, sent me several kits from QRP-Labs. I put together the various subkits required for the WSPR auto beacon. Interesting project that you might want to emulate! It took some real doing to get the right instructions and … Continue reading →

From unboxing to mounting and testing, this is a great little antenna. Its receive performance matches that of a more traditional vertical as well as MFJ’s 1788 loop antenna. Watch unboxing through testing. MFJ sent me this antenna for review–thanks! … Continue reading →

Last December I unboxed the Baofeng DM-5R+ and the Radioddity GD-55. Soon after several repeater operators said these radios were banned from their networks. This video looks at why that is so and how the radios don’t meet current American … Continue reading →

After several videos and disappointments, the MFJ-1788 Hi-Q Loop Antenna didn’t work on 40 m. Now it does! I took it apart to discover that the big capacitor was not fully meshing because of a mis-set limit switch. See how … Continue reading →

My MFJ-1788 Loop Antenna is having issues on 40 meters. This video looks at a failed remounting attempt, plus at a viewers successful approach. I’ll keep plugging on this antenna! You can see a list of Ask Dave videos by … Continue reading →

This video reviews the MFJ-1788 magnetic loop antenna, which purports to cover 40 meters through 15 meters. It doesn’t cover all of 40 meters, and 40 meter performance is poor, but 20 meter performance is indistinguishable from a good vertical. … Continue reading →

To test the new HF loop antenna, I need a long piece of coax. In this video I mount the connectors. You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking … Continue reading →