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I have a very similar model, RM's KL-203P (added preamp). Currently getting good SWR under all modes (preamp, no preamp, AM, SSB, powered off), but I'm not getting any output gain at all when engaged (AM or SSB). What does work is signal pass through, 3W in, 3W out in all modes. The preamp is...

I fully agree. I've seen (mid-1970's) guys copycat their own ring of solid copper grounding wire. But again, it was practice to mount it with a small stainless hose clamp onto the radiator. Looking back at what they did, and referencing Marconi's charts, I can almost imagine why the layman...

Revisiting this agining thread, I thought to redo a search online, and found a currently offered Zing Ring for sale! The (re-introduced?) "Zing Ring" is a model "SCBZR1" on the website, http://www.swatialuminium.com/ It's described as a, "STAINLESS STEEL GROUND PLANE ENHANCER". Despite having...

In nostalgia and awe, I'm re-reading the directions this thread took, paying extra study into Marconi's overlays and explanations. This has helped shed light not only on the novelty CB Zing Ring of the 1970's, but also to better understand design elements in other, more practical designs...

Old thread, but the target Antenna is still available - still valuable info!! I also frequently use ch 38 (LSB) (27.385 MHz). Question: Why not tune the antenna for a peak 0.64 wavelength based on Ch 40 (27.405), rather than 27.995 (unless you plan to use the upper freeband)? It seems that...

I've been toying with just such a concept antenna, DIY. Not to drive the topic off into the gutter (unless gutters are good?), but my concept materials would be very low cost, relatively rugged (albeit not lasting over about 5 years), and could potentially widen your horizons (still researching...

Thanks. Was just hoping he might have the topic flagged, and might visit on a whim, after email notification. Truth be known, these radios really aren't much for DX, and despite the convertor, they're still more of a novelty than a tool.

Nobody ever got back to you on this topic? I've not read of an special tunability for the Midland 75-822, though I have seen the 120 channel mod. The circuit for the Midland 75-822 is similar (though less complex) to the Albrecht AE2990 AFS, though the latter model includes an FM clarifier and...

Hmmm... Occasionally. The advantage (paired with a mobile adapter, and magnetic mount external antenna) is the ability to setup a rig on the fly in a vehicle having very limited space, potentially while not in one's own vehicle. The range may be something to write home about (that is, you may...

Full credit to Towerdog for having found so many products matching this family's battery pinout / configuration. Prior to finding this post, I began searching and cross referencing batteries / adapters for a model Albrecht AE2990 AFS. After compiling a pretty nice list (separated into 7.4V and...

Thank you for the photo of your HF Screwdriver Antenna with Cap Hat added. Your Cap Hat appears quite similar to the 6 element grounding add-on base I showed above, but instead of wedging between the coax and antenna coil, yours is somehow mounted on top. For the grounding star, it has a PL259...

Marconi, from your attached file, it appears the top hat somewhat lifts and separates the wave, perhaps shifting horizontal range. The original "Zing Ring" I recall was perhaps electrically connected to the driven element / whip, but it was placed just about the spring coil. I'm not imagining...

Thank you very much for the info. I've honestly never heard of the device shown in your link being called a, "Cap Hat", but I have seen a similar device sold as an accessory for CB antennas to improve "ground radiation" (especially for magnetic mounted antennas), and to improve reception (the...

Perhaps, but in some parts of the country they were popular back in the day. I never tested mine when I had it vs. a stock A/S with no ring, but it did seem to have good local coverage and a relatively flat VSWR across all 40 channels. Perhaps it was more of a bug catcher than a signal grabber?

Back in the mid-1970's, I got a used Antenna Specialists mobile base loaded antenna with a grounding ring added to the whip a few inches above the base loading coil. The guy I got it from called the device a "Zing Ring", and said it helped to provide a better ground plane, which may be needed...