Regardless of the type of transmitter, the concept of "reflected power" and [it] "winds up 'inside' the TX" is a highly unprofitable way to look at this problem. A much easier way to think of it is:
Build or buy a clip-on RF current meter. Clip it over *every* cable coming into the shack, and get yourself some real numbers. It's really the only way to know where the problems are coming from, and
Hi Tom! Nice to be back to this list. We're still commuting between two homes, in G and GM, and work levels and Internet access are causing some "QSB" on the newsgroups and mailing lists... I agree w
Converted into hot air... where else could it *possibly* go? :-) -- 73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek _______________________________________
The whole point of the SteppIR is that you can REtune the element lengths to compensate for any detuning, and then store the new values as your default settings. In other words, the best tools for th
One application where it would work - and even save money - is on "airline DXpeditions" where weight can be the deciding factor between going QRO or QRP. Although it looks like a classic pre-Dayton a
It also bothers me that the single-band amplifier plugins are grounded to the case by nothing more than one banana plug (or two if you include the +Vdd rail). This is not a good start for EMC testing
Didn't K7NV talk about this a few years ago? It must have been here... As I recall, he recommended using thread-locking compound rather than a pure anti-seize, because: (a) it lubricates the sliding
You guys put sand on your ceilings? Another one that works is a thin sheet of butyl rubber between the mast and the clamp, to increase the friction grab (again, recommended by someone here a long tim
Like JC, I've had good success with a 0.5in square socket drive adapter for the SDS hammer drill, and the right size of socket to slip over the end of the ground rod. You can buy special ground rod d
Les Moxon (G6XN, SK) would have been delighted with that application of his ideas. He always liked to think of 2-element beams being instantly reversible. If the two elements are made identical, the
For this application you can forget the math. Simply read it as a shorthand way of writing: "41.3 ohms resistive, in series with 0.9 ohms of capacitive reactance". If it had been 41.3 +j0.9, you woul
Slightly changing the subject, is there a good way to slice off thin overhanging branches at the 20-30ft level? Things that won't work in this particular location: * No way to get a cherry-picker out
Yesterday, I asked: Many, many thanks to everyone for all the good suggestions. Since the new QTH has lots of overhanging stuff, ranging from thin green twigs to quite thick woody branches, I'll prob
I'm facing a similar problem at the new QTH, except that it's for the base of a free-standing tower. A 4ft cube of concrete is required, with four 1in studs set in - but as soon as we start to dig, w
As the person who originally asked the question: thank you, Roy. From everybody's recommendations, I also found a few more web pages on pole saws and pole pruners: Jameson Corp. (US manufacturers): h
I had two of these things for some years. They work pretty much as Jim says... but there are some major disadvantages for long-term use at a home station. The main problem is that they rely on a very
Maybe I was being too discouraging, but take my experience as a warning: don't let them run wet inside! If you're thinking of extended home station use, either set yourself up with a permanent gas su
http://www.ifwtech.co.uk/g3sek/clip-on/clip-on.htm -- 73 from Ian G/GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek _______________________________________________ See
Two additional H&Ks: 1. Unless the plug is silver plated, it often helps to clear the plating out of the solder holes, so you're soldering to bare brass. 2. If you pre-heat the plug body with a hot-a