I want to phase two HF-9V multi-band verticals and operate on all bands (80-10) that these antennas cover. I am severely limited by HOA restrictions and the antennas would be hidden when spaced ~130'
I am seeking info on an old KLM 11el 2M yagi. It has 4 log cell driven elements, is on a 12-1/2' boom and uses a coaxial sleeve balun made from concentric copper tubes. Any help is appreciated. Thank
Thanks to those 4 who responded. Specifically: 1) I want to check the element lengths as they are obviously stagger tuned for wide bandwidth and some of the elements may have been replaced by the pre
Does anyone know the voltage breakdown of a silver plated, Teflon insulated, PL-259? Same for SO-239? Doing a search, I get varying numbers. Thanks, Mike _____________________________________________
Hi Jim - I've had the same problem with two YA-1's. If you drill out the rivets you will find, as one would expect, a multi-pole low-pass filter comprised of multiple L's & C's. The L's are straight
I just removed a 5BA (& tower) for the widow of a recent SK which is being donated to the Santa Barbara ARC. I am refurbishing the antenna and need a manual. Does anyone have the subject manual that
THANKS to Mark @ Force12 for his rapid response to my 5BA request. This customer service couldn't be better! 73 de Mike K6QD _______________________________________________ __________________________
I am building a new control box for an old motorized MA770 tower for a friend. I want to include provision for remote control and designed the box with 24VDC relays. I happen to have some nice 24VAC
I have recently been given what appears to be an M^2 circular polarized 2M antenna. Its configuration is two 6-element yagi?s mounted 90º to each other and offset by lambda/4. Each yagi has a dual dr
Thanks for your link to the RC helo video - amazing! How's all else? Mike K6QD I use "flag" type zip lock ties, as I call them. They have about a 3/8" x 3/4" "flag" to write on using a permanent fine
Hi Ron - This tower looks like an early Tristao. It is not a Tri-Ex based on the type of cross bracing used. Based on past experience with older towers and if it has been stored horizontally, be care
I'm looking for a "used" 2" O.D. x 1/4" wall x 15' (min.) 4130 or DOM galnavized steel mast. Please reply off the TT reflector. Tks es 73 de Mike K6QD@cox.net or (805) 680-2382 ______________________
I need to replace a sheave (bad roller bearing) in an LM470. It is an older Tri-Ex and the sheave is an ATCO M4-6B (no reference to ATCO on the Internet). It's the one at the top of the first section
What is the recommended support material for horizontal support of small (boom length <15 ft.) VHF & UHF yagis (144-450 MHz)? My guess would be FRP tube with sufficient O.D. & wall thickness to provi