For low bands and particularly 160 and 75 I much prefer UHF connectors. N do not do well when running the legal limit into a high SWR. I've also lost a few due to thunderstorms, but nary a single UHF
Anything that heavy shipped as a single unit is freight. The first rule of LTL shipping is that the truck driver drives the truck and stinks up the bathroom if you let him use it. Nothing else. You'r
Without commenting on anything else, 13 ohms of radiation resistance and 37 ohms of ground and other losses sounds entirely plausible with only 6 radials (I assume) laying on the ground. Al AB2ZY Hi,
More the latter than the former. You can apply way more than 40 lbs - your entire body weight if it's a vertical lift. I think the one I have (made in the USA) is rated for 2000lb max. That's with us
I have a lifetime supply of 70's vintage TTL. Until I discovered the PIC, I probably would have done what you suggest with a BCD decoder chip. I personally think the Arduino is an oddball device, tho
I didn't want to start an alt.towertalk.c.programming.advocacy type of sidebar...but I do agree with you. When I was first introduced to C back in the CISC minicomputer days, I always felt that most
Radiation resistance will not drop, nor would you want it to! Ground losses will drop and so should the feedpoint impedance. The lifetime of buried aluminum depends on the pH of the soil. Usually, it
Electric fence wire is usually aluminum or galvanized steel. If you just want something to experiment with under the expectation that it need last only a few years, by all means use aluminum or galva
First off, nylon will stretch. Greenlee and other electrical mfgs. sell buckets of poly rope specifically for this purpose. I've done several 300'+ runs using a shop vac. Connect the shop vac to one
Two suggestions: 1. Matte finish transparency film. 2. Clear transparency film and coat the unprinted side with a matte finish lacqyer, e.g. Krylon. Al AB2ZY Try a scrapbooking supply store for vellu
I rented a lift when I painted the exterior of my house. In my neck of the woods, near Albany NY, you need a certificate of insurance for $1M to rent one of the self propelled jobs. However, the Geni
Maybe. Zinc melts at about 787F and hot dip galvanizing baths are around 850F. Aluminum melts at 1200F, though I am sure that if the rivets are heat treated it's possible they would lose some strengt
Reminds me of this Dave Barry classic: http://home.xnet.com/~raven/Sysadmin/Instruct.html Al AB2ZY I forget now what electronic device it was, but one device I opened up was marked "Made in USA" on t
All you need to know about the eHam reviews that that the Tak-tenna garners a 4.6/5. For those that don't know, the Tak-tenna is basically a reactive dummy load that causes the feedline to radiate, t
Maybe a nit, or maybe not, but transmission line VSWR is determined solely by the ratio of the characteristic impedence of the feedline to the antenna feedpoint impedence. Adding a matching circuit a
That's my understanding as well. You can't ignore VSWR altogether, however. There are a couple of considerations: 1. Many, maybe most, hams that understand changing transmission line lengths helps ef
Sigh... This wasn't meant to be an exercise in ignoring the context! I'm talking about a single feedline with a uniform characteristic impedence and resonable loss, with reasonable defined as a level
The FAA does render an opinion on these matters pretty quickly. The youth football organization I was an officer of a few years back wanted to erect lights on a field which literally overlooked the S
My very limited flight instruction was long ago and never put to use. I seem to recall that the downwind and base legs were no exception to minimum clearances, but I also recall that I was a great lo
That's really interesting. Jim Lux already mentioned the pitfalls of GPS and barometric measurements of altitude. The technology of ILS doesn't require a functioning altimeter to land and I don't bel