That's called a butt wrap. 73 Jim W7RY Interesting. I've seen utility companies in my area install new wood poles that had a coil of heavy copper wire stapled to the bottom of the pole before it was
I regularly run 1500 watts RTTY contesting to my TH7 with a BN86. Works fine. I tried 8-10 turns of RG400 on a FT-240-61 core and the SWR was not nearly as good as it was with the BN-86 as Gerald has
The 2.4 inch 61 core is part number 5961003821. I use them for stack match transformers from time time or for small baluns wound with RG142. 13 turns of RG142 on a single core give me 30uH, same as m
At very impressive (high) prices! 73 Jim W7RY Greetings, TowerTalkians -- I'm not sure how I missed it but here is a new service for hams. It's a time-share of ham radio stations of some clout. Check
Or getting reimbursed for expenses from a commercial entity for a service provided by using the airwaves. 73 Jim W7RY Nope this is the USA monetary gain Trumps ethics:-) Seriously I think that rule a
Anyone know what the difference is between 130C and 2242? Linerless splicing tape? 73 Jim W7RY Roger, I know you know this but will mention adding a two or three inch piece of heat shrink (like the T
What you can get from The RF Connection. www.therfc.com 73 Jim W7RY I use RG-58X for short jumpers. Whose Crimp Connectors would you recommend I use ? Tnx, Dick, W1KSZ _______________________________
I agree. Having the guys on the top plate is a real pain. My first Rohn 25 was like that. It was very frustrating installing a beam with a tram system. Install a guy ring 4-5 feet down the tower. 73
That would be my last choice. Especially when you have a tram line attached 6 feet above the top of the tower stretching 100+ feet out. 73 Jim W7RY It's not a problem at all if you just drop two of t
I did that exact thing. I used a sinble link from a 3/8" (could have been 1/2") chain. Just cut them apart at the hardware store. Put a thimbal for the Philly and the 3/16 on it and away you go. My P
Do you have a part number? 73 Jim W7RY Mark N1UK -- Original Message -- From: "Mark Robinson" <markrob@mindspring.com> To: "Ray Benny" <rayn6vr@cableone.net>; "TowerTalk" <TowerTalk@contesting.com> S
Is there a 64 bit version of *DIPCAGE2.EXE? Thanks 73 Jim W7RY * On 10/22/2013 5:56 PM, Bryan Swadener wrote: My 4-wire cage inv vee was cheap and easy to build. It's a proven design (W1AW has been u
My thoughts exactly Roger 73 Jim W7RY https://www.youtube.com/watch?v=uWi0wlSyU3U 73, de Nate >> There is nothing wrong with raising, or rather setting a tower using a Helicopter... If it is done by
Icom PW1 73 Jim W7RY The fact that most (not all) SS Amps have Automatic Antenna Tuners just reinforces my statement. What QRO SS amps (1KW and above) have built in tuners? I've not found one yet. 73
Not to mention your location in W2 or W8 land! You have no idea how hard it is to work DX on 160 meters from the Pacific northwest. 73 Jim W7RY John KK9A Ever since I have put up two inv-Vs, one for
My OR2800 has 120 feet of cable. I use 2ea #16 for the motor and 2ea (1 pair in a 4 pair cat 3 cable) for the sensor. Works fine. 73 Jim W7RY On 11/11/2013 6:49 PM, john@kk9a.com wrote: If I read you
9913 or similar. 73 Jim W7RY On 11/11/2013 6:53 PM, Bob Good wrote: I found a 52 ft roll of coax in my shop storage that I need help identifying. I has a 12? gauge solid center conductor supported by
The RFC (The RF Connection) has the stuff in stock. 73 Jim W7RY There's so many different types out there that I would rather use what folks use than re-invent the wheel. Tnx es 73, Dick, W1KSZ If yo
Does anyone have a copy of NCJ Sept-Oct 1996? I'm looking for the article by W2VJN that covers SO2R stub switching. Anyone else have any info to share how they built a SO2R stub switching system? I'm
Tessco has it by 500 foot spools. It's called split loom tubing or convoluted tubing. A search will turn up Tessco. Huge supplier to the wireless industry. 73 Jim W7RY Ray, I think the dripline is so