Thanks Paul! This is really interesting, and I may try the idea with the LoG connected to the ground terminal of a Bonito MegaDipol MD300DX. I don't think it will hurt reception and might actually be

My method has been 91% isopropyl alcohol, using a long bristle, very soft brush for working the liquid down between the vanes. I don't worry too much about washing out the bearing grease as I prefer t

John also highly modified a SRF-59 to include a digital frequency readout, using a module by the Seattle area AADE vendor (no longer in business). The vendor was able to figure out the correct connect

Hi Mikek, I'm not Gary, but I did wind an external loopstick with the R40C1 material for a CC Skywave (non-SSB model) a few years ago. It worked very well, but I didn't do any direct comparisons with

Hi Kzr63g, Gary DeBock is correct that several years ago I did try a number of approaches to a broadband FSL. Andrew Ikin of Wellbrook Communications got involved too, suggesting that a FLG100LN modul

I don't know if this will be of interest, but I've used this web page before to predict true intermod frequencies (3rd order, 5th order, etc.): http://www.arcticpeak.com/radiopages/intermodulationprod

Excellent move, Gary and Russ. The handwriting has been on the wall for a while now...Yahoo is goin' down :^) I've been very happy with every Groups.io forum I'm a member of, and have NEVER had any se

Hi Gary, Your thoughts are interesting and appreciated! I'd forgotten that John B. was fairly stern and unyielding on the Ultralight definition. I liken the situation to sports rules; too many changes

Hi Gary, The recordings from the Skywave SSB sound very nice in 1 kHz bandwidth, something I've noticed in my Skywave SSB also. Do you feel the adjacent channel rejection is as good with the SSB model

​In addition, I believe the rules also specify that the radio cannot have SSB or have a retail cost of over $100 USD. This is because the intent of the Ultralight category is for pursuing the challeng

Hi Everett, You do beautiful work with your FSLs, and I admire your careful approach to designing these antennas, as you've documented in your articles. Did this new FSL use a 64:1 ratio transformer a

Agreed! I bought the PR-D5 and PR-D15 at the same time for careful comparisons. The PR-D15 model won out the majority of time for me in weak signal daytime sensitivity and usually in selectivity also.

I believe I've read it in a crystal radio enthusiasts forum, but it's my understanding that the "Dissipation Factor" of various plastics, foam, (or other materials) is what makes the difference. A ver

Hi Keith, I share your enthusiasm for the PR-D5 and the newer model PR-D15. A couple months ago I purchased both the D5 and D15 to try out for close comparisons of DXing performance, features, and erg

Hi Nick, With regard to nulling ability, I wonder if the optimum length-vs-diameter ratio for FSLs is different than for standard (solid, non-hollow) ferrite rod antennas. In the early days of the Ult

Hi Gary, I'm looking forward to your further mini-FSL adventures! Perhaps we can meet again next week to discuss... I'm on vacation from Christmas through Jan. 4th and will have some free time. I had

I totally agree with that assessment! I nice handheld radio with precise tuning of SSB, but rather fiddly to operate, especially if you're in a hurry. One comment on the plastic belt clip. You don't n

One of the inductance meters I use is this this low cost, multi-function tester for only $21.97 with Amazon Prime shipping. At this price, anyone experimenting with antennas for their Ultralight radio

I added some shielding recently between the boards of the C. Crane Skywave radio, and have made similar additions to other portables before. My usual approach is to target the DSP chip first of all, a

Hi Gary, I remember seeing this Ebay seller from Greece with a similar posting in July, and it's what gave me the idea to try it out with the Countycomm GP-5/SSB (not an official Ultralight :^) I don'