There's a ton of history in the Towertalk Reflector Archives about these ICE 419 units. The David Montgomery mentioned in W5WZ's document is my neighbor W7WW. He and I shared the info received from I
I considered buying a Yaesu rotator, but I was told that they are not repairable. That's something to be factored in. Dave Hachadorian, K6LL Yuma, AZ On 3/2/20 3:17 PM, Jim Froemke wrote: Ive asked b
You may have opened the clockwise limit switch AND the brake wedge may be stuck. The usual way to overcome a stuck brake wedge is to rock the antenna in one direction or the other to free the wedge.
I have a 48' tower, and have modeled the advantage of going to 70'. Over flat terrain, the models show an advantage of 2 dB at all of the useful wave angles. Dave Hachadorian, K6LL Yuma, AZ Please fo
According to the Rohn book, the 1/4" EHS has a breaking strength of 6,650 lbs. and the 1/2" turnbuckles have an ultimate strength of 11,000 lbs. They should be good. Dave Hachadorian, K6LL Yuma, AZ U
My go-to guy for Hy-Gain rotor repair is Pete, W2HP. His workmanship is excellent, turnaround is quick, and prices are reasonable. Dave Hachadorian, K6LL Yuma, AZ Hello, Ive got a Ham IV rotor issue
I recommend W2HP for CDE rotator refurb. I have not tried MFJ. Dave Hachadorian, K6LL Yuma, AZ Has anyone sent theirs to MFJ for a refurbish? I got one off a tower up since the '70's. It works but I
An antenna analyzer can give you an idea of the loss. Hook the analyzer to one end of the cable, and leave the other end open. Dial the analyzer up to 30 or 50 MHz. Loss in dB = 10 log ((swr+1)/(swr-
And, if you disconnect the brake wire, the brake will never release! Dave Hachadorian, K6LL Yuma, AZ No, Hy-Gain uses a spur gear drive which offers very little resistance to turning so they need a w
It's easy to bypass the CDE limit switches. If the rotor is stuck clockwise, jumper terminals 5 to 8 on the back of the controller. CCW, terminals 4 to 6. Dave Hachadorian, K6LL Yuma, AZ Long Path? W
Back in the day when Rohn sold crankup towers, they had a picture in their catalog that said, Be careful with your crankup! It showed a picture of a horrified guy with his fingers cut off, and bright
It's quite interesting working with the choke calculator, but I notice that the Rs values differ significantly from K9YC's Choke Cookbook. For example, with a Fair-Rite 2.4" #31 toroid, on 28.4 MHz,
I also am curious about failure modes on the Budwigs. It is possible to misuse the Budwigs by putting strain on the exposed copper parts. The antenna wire is supposed to be secured to the PLASTIC p
I might add that the Kindle version of N0AX's book is available on Amazon for only $9.99. The Kindle version is pretty cool because you can click on hyperlinks and look at them easily. If you don't
I used RG-213 to make a trap once, including the recommended 1 inch no braid. I got a knock on the door one night, and it was a neighbor, telling me that fireballs were dropping off my antenna. Dave
No problem using the T2X controller for the older rotors. The cap is 12-140 uF, AC-rated. You can get a 120 volt AC cap from your local electric motor shop. Dave Hachadorian, K6LL Yuma, AZ I am abo
Free shipping sitewide tonight and Friday at KF7P Metalwerks. https://www.kf7p.com/KF7P/Welcome.html Dave Hachadorian, K6LL Yuma, AZ _______________________________________________ __________________
Just knowing that you are wasting 21% of your output power in an unnecessary 1 dB of feed line loss will play with your head and cause you to perform sub-optimally. Dave Hachadorian, K6LL Yuma, AZ On
KF7P Metalwerks has free shipping on all in-stock items today and tomorrow. Lots of good tower/antenna stuff. https://www.kf7p.com/KF7P/Welcome.html Dave Hachadorian, K6LL Yuma, AZ _________________
W2HP always did a great job for me on T2X repairs. About two years ago, I decided that I had had enough with the problems of balky brakes, unreliability, etc. on the T2X and switched over to an Alpha