Looking for recommendation for PE to do calculations on a tower I am buying from a 3rd party. The PE can be anywhere as I will have a licensed Nevada PE provide a stamp after reviewing the calcs as r
Anyone know of crane operator in the San Gabriel Valley CA area that could pull a tower out from a backyard and drop it on to a flatbed? John K7LY _______________________________________________ ____
Looking for recommendations/sources for hardline connectors for smooth-wall shield 1/2 hardline, eg, CR540PE. UHF or N types ok. 73, John K7LY _______________________________________________ ________
Is CR540PE hardline ok for direct burial and/or external use without conduit? _______________________________________________ _______________________________________________ TowerTalk mailing list To
I need to replace the rusted out bearing on the top plate of a tower. I see many flanged bearings listed by the usual online retail sources as well as direct from bearing manufacturers that are price
What is the advantage, if any, for using a tower top bearing with eccentric locking collar as opposed to a set-screw collar? John K7LY _______________________________________________ ________________
Wondering if anyone can suggest what might cause this interference: It is broadband, occurring across the HF spectrum every 8Khz, and is "on" for about two minutes, then "off" for about two minutes,
Previous owner had quite a lot of aluminum in the air; enough stiff breezes broke the upper mast bracket on the rotator, and the mast spun frequently enough to tweak the top plate and the mast shaft
Looking for a crankup tower raising fixture, US Tower US Tower TRX-80 HD or equivalent, any condition. John, K7LY _______________________________________________ _____________________________________
Anyone have any left over lengths of 5mm Mastrant-M rope? I need two 75 foot pieces. John K7LY _______________________________________________ _______________________________________________ TowerTal
I have two roughly 50m lengths of unterminated hardline that I swept in TDR mode using a RigExpert AA-600. Each has an N-connector on one end. The first length is Commscope CR-540PE (smoothwall 1/2"
Jim and Dan, thanks for the comments and suggestions. I ran Zplots TL params on data from my TAPR VNA and saw no unusual results. I rescanned the cable with the RigExpert but viewed the data on AntSc
On a related topic, I'm getting ready to put a Mosely PRO67-C-3 on a tower. The instructions call for a coax choke, 10 turns of RG213 in a 10" diameter, taped to the boom, and within 3-6" of the chok
Looking for suggestions for a 120VAC winch to replace the hand crank winch on a TRX80HD tower raising fixture. _______________________________________________ ________________________________________
If anyone has modeled the Mosley Pro67-C-3 and would be willing to share it, please contact me. 73 John K7LY _______________________________________________ __________________________________________
Tony, Call US Tower and ask Remi to run custom calculations for you. It's the safest way to go and they don't charge an exorbitant amount like "the other tower company." 73, John K7LY -- Original Mes