Our favorite fashion hacker/ham, Diana Eng, KC2UHB, has posted a new article on the Make Magazine blog with instructions on how to build an End-Fed Half Wave antenna tuner and deploy it with an antenna. (BTW, did you see that she was recently named to the ARRL Public Relations Committee? An excellent choice the League.)… Read More EFHWA Revisited
When I was going through some files on my USB thumbdrive, I found a panorama of Hoover Dam that I made from some photos that I took on our honeymoon last August. There are some small blemishes in the rendering (some of the power lines have discontinuities and what not), but overall the results still… Read More Hoover Dam Panorama
As I mentioned in a previous post a few days ago, I found a nice 2 watt mono audio amplifier board that’s a perfect addition to give speaker capability to a receiver with headphone output. I purchased four of these bad boys since they were so inexpensive (and I was paying for shipping from Hong… Read More Bench Audio Amplifier
I’ve noted with quite a bit of interest the recent surge of comments on QRP-L favoring a QRP exodus up from 7030/7040 kHz to [part of] the old Novice watering hole of 7100 to 7125 kHz. The esteemed Arnie Coro, CO2KK seems to have ignited the fire with this post to the reflector: Dear amigos… Read More QSY
This weekend, I’ve been participating in the SKCC Weekend Sprint when I get the opportunity in between other obligations. At about 0900 local, I heard F6HKA on 20 meters coming in pretty well with a very fluttery signal. As you can see on the azimuth map for my QTH, the path to France goes right… Read More Over the North Pole
Lately, I’ve found that eBay has been one of the best ways to beef up my junk box with inexpensive electronics components (eBay Stores are my preference, the auctions often aren’t that great). I purchased a nice SMD resistor/cap assortment from a company called Sure Electronics and found that they have some other goodies that… Read More Cheap Audio Amplifier Tip
I’m very pleased to report the first (to my knowledge) completed Willamette transceiver which was born in Europe. Vincenzo, IZ5GVP sent along to me a couple of photos of his very nicely constructed Willamette. He reports that it works well and that he’s considering modifying it to operate on the 30 meter band. Three cheers… Read More Willamette Goes To Europe
I finally got fed up with my lousy custom coded main website (at www.nt7s.com), so I’ve decided to rip it down and install a CMS. Don’t be surprised to see some strange things going on there over the next days/weeks. I’m going to get all of the important content back up there. It may take… Read More Website Overhaul
I got a bit of cash for my birthday last month and it was burning a hole in my pocket for a few weeks. I decided I needed a good set of CW paddles for my station, since the only keying devices that I have (that work) are all straight keys. It was a bit… Read More Begali Simplex Unboxing
Thanks to some prompting from a Willamette builder who inquired about some performance issues with his rig, I was able to identify an error in the bill of materials which causes a significant degradation in receiver sensitivity. Fortunately the fix for this problem is very simple. Audio preamplifier collector resistor R49 was incorrectly called out… Read More Important Willamette Update