OK Steven, Actually I sent my message before seeing Steve's responses to your original post. Steve was experimenting with FSL antennas even before I started, and we have shared ideas and resources for

Hi Gary, Thank you for the info and advice, thanks very much also for the offer of the foam, but I should be able to track down a suitable thickness of dielectric here somewhere. I will report back

Hi Steven, <<< My question is, how importaint is the "air gap" between the outer of the ferrite rods and the coil or winding over the top of the ferrite rods. At present I have just wound approx 20

Hi Steve, Thanks again for all the info, I will endeavour to get a hold of some of the appropriate Litz wire and see what improvement that makes over my stranded copper insulated wire. I have had a

Hi Steven, As you note, of course air is the lowest loss spacer but it's not very easy to wind a coil spaced over ferrite using just air. :) Styrofoam is probably the next

Hi, Thanks very much for all the replies to my question. I will remove the winding and add something to give the correct "air gap" to 1/4"-5/16", and see how that goes, I will also get a hold of some

Hi Steven, Congrats on your first FSL success. Some of us have determined, back when FSLs were first heard about and lots of experimentation was going on, that the coil should be spaced

I believe that the inductance of the coil is a function of the average permeability of what occupies the interior of the coil. I do not think that location within that area makes any difference, it is

Hello, I have just found your group and joined to day. I live in Scotland, UK. I found your group while googling about ferrite sleeve antennas, I am also a memeber of several other yahoo groups. I

And, for your 518kHz, Mike, how about Navtex? http://www.nws.noaa.gov/om/marine/navtex.htm http://www.dxinfocentre.com/navtex.htm (look at NAVAREA IV (North) as most likely? ) best

JOUB-774 was heard with poor signal fading in and out from 1135 until 1252 GMT. Also heard carrier signals from JOBB-828 and V7AB-1098. Good DX. Richard Allen, near Perry OK USA, Skywave &

---------- Forwarded message ---------- From: Jordan Dobrikin <jjdobrikin@...> Date: Tue, Jan 24, 2017 at 1:57 PM Subject: Re: The Bagpiper To: "poikaa3 ." <poikaarod@...> Hi Are Scot or Irish? My

Thanks for your observations and comments, Todd. <<< Gary might share his experiences with the relative performance of FSL and small loops versus larger antennas such as flags and beverages at

<I suppose that what you are asking (or proposing) is whether a home QTH with large high performance antenna(s) and otherwise outstanding RX performance should be used as a early warning system as a

But one could always go to a beachfront motel, rent a room, and put up antennas on the beach, run cable in and DX in comfort. Russ Edmunds 15 mi NW Phila Grid FN20id <wb2bjh@...> AM: Modified Sony

Todd, I suppose that what you are asking (or proposing?) is whether a home QTH with large high performance antenna(s) and otherwise outstanding RX performance should be used as a early warning system

Hi Todd, <<< Perhaps some on this list might share positives and negatives with various types of outdoor MW antennas. While a Drake R8B, low noise RF preamplifier, and horizontal high elevation

While reading through all the ULR reports of weak AM carrier reception from Korea, Japan, New Zealand, Australia, Polynesia, etc, it makes sense for certain DXers to use a larger signal pickup system

1098 kHz V7AB? a weak carrier heard from 0621 GMT (Majuro sunset at 0638); barely audible man talking at 0703-0704. 1566 HLAZ with traces of a signal at 1326; barely audible from 1334 until close-down

While this has been setup for radio scanning, the same ideas could be used for amateur handhelds and similar. Stealth Scanner Bag MK3 – January 2017 Stealth