Most won't, but the AV640 and the MFJ/Cushcraft verticals will although the AV640 needs to be at least 5' above the beam while MFJ says 10' for theirs. That is one whale of a lot of leverage to exert
This shouldn't be a problem in relays used in remote antenna switches or even interlocked SO2R switching like the 6-pack as they should never be switched under load...Although people do forget. 73 Ro
In either direction it'd be a compression force. 73 Roger (K8RI) _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@conte
Sorry this didn't go out sooner, but I just got the internet back after it being down for several hours. Unfortunately the original question is not included so I don't know for sure what kind of rota
Not really needed unless the mast is notably smaller than the sleeve. I might go as far as wrapping the mast that will be inside the sleeve with PVC sheet to serve as a bearing/protection for the mas
My preferences are Times Wire LMR-400 and 600 for regular runs and Davis BuryFlex(TM) for rotator loops I avoid the Ultra flex or "UF" versions of the LMR cables. I also use crimp on connectors, be t
Remember the ROHN "dirt base". I'm planning on 50' of 25G, bracketed to the end of the shop at roughly 18'. There will be a Force 12 C19XR at 50' and a WARC-7 at 60'. I'm using a 6' long, dirt base c
Very nice addition Jim. At least I think it's an addition as I didn't see it when reading the tutorial a year or so back, which could speak more to my attention span than contents. There are several
I always rated Hy-gain well above MFJ. They were helpful, easy to deal with and produced moderately priced antennas that worked well...at least the ones I tried did. OTOH calling the hy-gain numbers
When I hear my wife call saying the "Toy Truck" is here I know she means either Fed-X, or UPS so...why not? 73 Roger (K8RI) _______________________________________________ ___________________________
It's just a sand blaster with a smaller nozzle. Many better quality blasters have various size nozzles available. OTOH soda will remove galvanizing if left on one spot too long or if the air pressure
Jerry, I'm no expert but since it's critical that the thrust bearing and rotor be 'plumb' to each other I would think you'd want to match drill the actual thrust bearing to the tower instead of using
You are are not sealing against 0 psi, but against several inches of sustained water pressure. Yes it is very difficult to "seal" cable entry into conduit. Sure some regions of the USA have high humi
Please remove Digest from subject! I said it before and I'll say it again: Silicone rubber as in the RTVs is not moisture proog. Water proog as in liquid? yes, but not for the vapor. I say this as I
When it came time to turn the Gas back on, they had to visit every home, on a timetable they set, with +/- 8 hour windows. Really nice guys. I'll dig coal in my back yard before I put my life in the
On 3/27/2013 12:26 AM, R.Morris wrote: On 03/26/2013 09:45 PM, Rick Kiessig wrote: I'm in the market for a new genset - probably a low-RPM diesel generator, with 240VAC, clean sine wave output, audib
You are correct that the Steppir puts more torque on the rotor and mast. 73 Larry K1ZW Perhaps they do, but I currently have had a 2 element SteppIR turned by a tiny HD-73 rotator* on a flimsy 10 in
In addition to the advice that both W8JI and I have offered about switching power supplies, don't overlook radiation from, and reception by, the telephone line. This mechanism is greatly increased wh
On 7/30/2013 2:39 PM, Jim Brown wrote: On 7/30/2013 5:31 AM, Roger wrote: But the telephone company only will come inside if they find what they consider a problem inside. They had a shorted line ins
But is average really average. The sunspot cycles highs and lows we have recently experienced are quite different than previous cycles and so far this is reportedly, the lowest in a hundred years. Fr