It may be time to investigate NVIS antennas for 40 meters for those of you in the 4 states area - not good for those of us who are more remote. Of course even that those may not be effective for those

Bottom line for me - If it sounds too good to be true, it probably is. When the email address or physical address of the seller is different from the address listed in QRZ.com or the FCC database, it

Nate, I would think it would be quite difficult to detect scammers when they sign up for a group like this. This is an "open group" rather than a "closed group" where everyone must be specifically inv

Terry, I am packing for Dayton, and will have a few of those with me. See you at FDIM. 73, Don W3FPR

Take a look at the Elecraft Mini-Modules for inexpensive accessories and test gear. 73, Don W3FPR

Here in NC, 80, 40, 30 and 20 have very few signals - only the strong ones are being heard. No wonder QRP signals are weak. Nasty propagation devils are to blame - we need some 'angels' for field day.

I hope I am not "telling stories out of school", but Ed may be getting his Elecraft K2 up and running properly again - I am currently helping him with it via off-list email. If that is possible, his c

As a "not a casual user" but not an IT professional, I have not found any problem with Windows 10. I have 7 of the 8 computers running on my home peer to peer network with Win 10 loaded - one is the h

Chip, You might want to consider building your own. Start with an 18-0-18 volt transformer from MPJA (http://www.mpja.com/18V-2A-Center-Tapped-9-0-9-Transformer/productinfo/27843+TR/), a bridge rectif

Phil, Is your computer clock/date set correctly? Is the computer set to the correct time zone? If your computer is a day ahead of time, can it tell the future?:-) 73, Don W3FPR

Jim, They are used normally for adjusting trimmer capacitors. The rotor of the trimmer is connected to the adjustment screw, and if that side of the capacitor is not connected to ground, you will not

Tim, I have bought stainless steel hose clamps from Home Depot, Lowes, hardware stores, and automotive supply places. Look around locally. Some do not have SS adjustment screws, but many have SS bands

Dave, I may be proven wrong, but I don't think filters on two different frequencies will give the same effect. SDR receivers are based on the 90 degrees out of phase signals derived from a quadrature

Paul, See if you can find a copy of Experimental Methods In RF Design by W7ZOI. It has a lot of design information. It is an ARRL publication, but is currently out of print. The ARRL Handbook also has

Roy, I suggest that you and anyone else looking for a good and versatile keyer chip (or a keyer kit) that you take a good look at the K1EL keyers. The K-16 is their more recent IC and for $8 it cannot

I know it will modify the "Paraset" appearance, but if you cannot obtain real FT-243 crystal sockets, know that the crystals will fit into alternate pins of an octal tube socket. We used to do that in

Oh yes, I remember those days of cathode keyed transmitters. If you contacted metal parts of the key, you could get quite a shock. Some actually keyed the B+ instead of the cathodes and the key became

I can appreciate your efforts to re-create some of the gear that we worked with "way back when". However as a old-timer, I have done that a long time ago when I was learning what this hobby is all abo

Making an adapter for HC46/U crystals to the FT-234 socket is not difficult -- If you have an old octal tube, break the base but save the pins - they fit into the crystal socket holes. Get a strip of

Nate, Get a female associate to look at the color bands. Generally their color perception is much better than for us males. My XYL claims that my box of crayons is limited to 8 colors while hers has a