I did, about four hours ago. :) Jim K9YC _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.c
Jim, you may have hit the nail square on the head (as usual)! If the StepIR will work that way from a user interface point of view (that is, if the user controls aren't on the box that you want to mo
I bought a bunch of stranded #14 and #12 wire from Davis RF several years ago and had terrible results with it. So have several of my friends. It simply doesn't hold up well. Jim Brown K9YC _________
Yes, the stuff that I h(and my friends) ave had bad experience with is FlexWeave. Jim K9YC _______________________________________________ _______________________________________________ TowerTalk m
Study http://audiosystemsgroup.com/RFI-Ham.pdf DXE makes good stuff, but your problem is unlikely to be related to the balun/choke. The more likely cause is a pin 1 problem in one or more of the piec
As little as possible. It usually isn t specified. Jim K9YC _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting
Not nearly as effective as putting it at the antenna. BTW -- a current balun is a CHOKE, not a balun. 73, Jim Brown K9YC _______________________________________________ ____________________________
The primary function of ANY connection to earth, including AC Mains, IS the discharge of lightning (and other power line spikes). A connection to EARTH is irrelvant to the operation of radio systems.
Yes. K9OR is one of the best DXers I know. He runs 100 watts. His antenna farm consists of a low 80M dipole and a 25 ft vertical on his small city lot in Evanston, IL. 73, Jim Brown K9YC ____________
Yes. The latest trend in manufacturing is now build (or assemble) to order. But building of many products takes hours, not days or months. The key virtues here are zero stock (so no space needed to s
I'm looking for some RG6 to feed some 160/80/40 dipoles that are high enough to be much closer to 75 ohms than 50 ohms. I'll be running legal power. I'm having a hard time finding an RG6 with an outd
And YOU have hit mine!!! Do you have a clue about how much work it takes to obtain ACCURATE data on the performance of an antenna? To measure the gain, you must build the antenna, get it up in the a
I stand by my post. Anyone who doesn't like what I write is welcome to delete it. I am one of those who has done a lot of work (years worth), and shared it. I've also published my test setup in detai
I'm not supporting a report. I'm supporting WORK done in a scientific manner, and shared with the ham radio community. Furthermore, to TEST their work, I would have to repeat it. I don't have those r
Based on the experience of a local ham who posted on another list, I'd say look elsewhere. He had problems with a relay that slightly more voltage than he gave it, suggesting that the spec for the re
You didn't say what bands you want to operate. One of the nicest and easiest portable antennas to drag on an airline is the telescoping fiberglass pole made by DK9SQ. It collapses to 1M in length and
Looks very cool, Henry! Jim _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com
I've always found them at hardware stores. Jim K9YC _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com htt
I just bought a couple of bags of UV-resistant Ty-Wraps at Home Depot. The mfr is Catamount, which is apparently owned by Thomas and Betts. Does anyone have experience with products like this? Severa
YES. NO. The most likely coupling is COMMON MODE, and shielding won't help that. The best and easiest fix is a common mode choke on the CAT5 tuned to your transmit frequency. 8 turns of that cable ar