On Fri, 29 Nov 2002 16:20:28 -0700 "Steve/n0tu" <n0tu@codenet.net> writes: It's hard to tell for sure but I agree with KK9A's assessment that if the antenna and indicator are out of sync, there's mor
In your example, the antenna is 15 feet below the top guy. Therefore the guy wire must extend at least 25' horizontally (the turning radius) for every 15 feet of height (1.67 foot horizontally for ev
On Fri, 13 Sep 2002 16:46:57 +0100 Tom Osborne <w7why@harborside.com> writes: If the resistor is a perfect 50 ohms, purely resistive, and the stub is either 1/4 wave shorted, or 1/2 wave open, that m
On Sat, 14 Sep 2002 08:21:50 -0300 "Carl Smidt" <smidtca@sprint.ca> writes: (regarding the SteppIR) It seems to me that, if one were willing to give up 6 meters, a longer boom design with one or more
Somewhere on WX0B's website there is a procedure for phasing dissimilar antennas. It involves a dual trace scope, and transmissions from a neighboring ham. Dave Hachadorian, K6LL Big Bear Lake, CA
I'm always amazed that so few hams know that these $5 gadgets exist, or have no idea how to use them, and consequently don't recognize their value. If you are right-handed, you put your left hand on
Try this, or search on SKU975486. http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?BV_Session ID=@@@@1918943184.1013102364@@@@&BV_EngineID=cccladcegdlmjhicgelceffdfgid gkj.0 If you clic
Remember the Aloha Airlines incident where the top of the fuselage peeled off and sucked the flight attendant out? That was caused by cracks in the aluminum, caused by too many pressurization cycles
Interestingly, I don't see any info in my 1996 catalog for the hinged base or the buried section of tower for use in guyed installations. The drawings for guyed towers all show the pier pin mounting
I missed this posting the other day. Just saw it. You have to be careful with YT, using stacks with close spacing. If you plot a stack of two antennas even one foot apart, YT will still show a 3 dB g
LPL told me one time that his best antenna is a large 10 M Yagi at 200'. He theorizes that when you get an antenna that high, in terms of wavelength, the nulls fill in and become almost non-existent.
On Thu, 10 Jan 2002 10:48:30 -1000 "Jim Reid" <jimr.reid@verizon.net> writes: You can download the results of N6BV's latest work on elevation angle statistics here: http://www.arrl.org/notes/antbook/
On Fri, 11 Jan 2002 17:40:38 -0800 (PST) Michael Watts <wy6k@yahoo.com> writes: If you have only one antenna you should definitely put it lower. If you take a quick look at antenna patterns, you will
I have been running a KT-34XA, predecessor to the 36XA, for the last 20 years on a 48' tower. It works extremely well. I think the XA will make you very happy. Dave Hachadorian, K6LL Yuma, AZ K6LL@ju
On Tue, 29 Jan 2002 14:37:09 -0500 "Nat Heatwole" <nat@ajheatwole.com> writes: It varies with a lot of things, especially time of day, time of year, and solar flux, in addition to the ones you listed
In the 1996 WRTC, N2IC and I used a 250 ma fast-acting fuse from Radio Shack, with stubs, but no BPF's. The fuse was on the antenna side of the stubs and never blew. Dave Hachadorian, K6LL Yuma, AZ K
On Tue, 6 Nov 2001 19:32:53 -0700 "Steve/n0tu" <n0tu@webaccess.net> writes: If it's not broke, don't fix it. Every time you remove those four self-tapping screws that hold the two halves of the housi
Steve is right, but neither one will hold the self-tapping screws in a Ham-IV rotor when they start to loosen up. I've been there, and done that, and so have several other Towertalk denizens. This is
Even cheaper is 14-2 w/ground. Put the capacitor at the base of the tower to save two conductors. Dave Hachadorian, K6LL Yuma, AZ K6LL@juno.com List Sponsored by AN Wireless: AN Wireless handles Rohn
Try pricing a large roll of Romex, 14-2 with ground. It's cheap, and it's easy to remove the outer cover by stripping off a couple feet, tying one wire to a tree, and pulling on one of the other wire