Here on Kauai, the site of WWVH, a directional array of vertical 1/2 wave dipoles is used on 5, 10, and 15 MHz to provide "Skip-Hemispherical" coverage to the West, on out across the International Da
Aloha, Just finished a chat with the engineer in charge out at Manoa at WWVH. He is actually beginning planning for new antennas; was looking in the ARRL Antenna Book, how about that! Present vertica
Aloha, UPS brought the C4 just before a cheese sandwich this noon. After sandwich, unpacked all into neat little stacks; each of the 8 elements laid out in order to soon be riveted together, with the
Well, today it was time to take down the old Mosley, and get ready to complete the C4 assembly. The 8 year old US Tower MA-550 now shows an astonishing amount of rust; where? On the flat surfaces, ar
Hi, Anyone ever use, or hear of this product: Snokote. Must be heated to 185F or so, then can be brushed on the surface. Market seems to be preventing rust on oil platforms out on the ocean! See: htt
Hi, Anyone have info about an Antenna Mart remote control coax switch. Very faded label here, but believe it reads Model SW-5. However, appears to be a 7 position switch driven by a stepper motor? No
Aloha to all, Beautiful Saturday AM out here, the rain has gone on by. Back to work on the C4. Got lots of info about the switch, including the most info of all from Bill Wall, KC4UZ, see below. A ve
all Aloha, I am a bit sunburned from fooling around assembling my C4 the last two days. Have ducked out of the sun quite a bit, so am not trying to do it all in a day or two. Plan on putting the C4
Aloha, But, I have two lengths of tubing left over?? Each is a 48" length of 3/4"OD tube; each has a 21" length of tubing slipped over it. One end of the 21" tube is 2" from one end of the 48" tube;
apparently HI Steve, Just rcv'd the following from Tom: "Good afternoon. The assembly you have is the double/triple wall inner liners for the 40 mtr element. It goes inside, right at the first junct
Aloha Sarah, Never mind sending the drawing fax; not needed. It was pretty obvious what to do when I had a look at the 40 meter element and the two "extra" parts. Took only a few minutes to drill out
It's up in the air. Thanks to the rock climbing team along with their carabiners, pulleys, long colorful ropes and their experience in dealing with things up in strange places! Also got a lot of help
Hi Ted, The X is the reactive part of the impedance; the contribution from either inductance, were the antenna is electrically longer than the test frequency 1/2 wavelength, or capacitve were the an
Chad noticed my error in the followin sentence: Because I assumed the vswr on the line was 3:1! But I forgot to put that in my model discussion. Chad's number is exactly correct for the rms current i
Hi Pete, you wrote, in part: Well, I think what I measured is not that different from the vswr numbers published by Ward, N0AX and Steve, K7LXC in their test report book about tribander performance.
Aloha, My MA-550 came out here by ship and truck. No problems at all, it was crated. I have had V's hanging from it for years. Simple, but not elegant solution: I have a rope tossed up and over the
Aloha, Seems I had to have some LMR1200. So, I up and bought a 175 foot chunk of this colossal stuff: 1.2 inch OD! I also paid to have the BIG type N connectors for it installed. Well, now that the h
Aloha, Wow, in less than 24 hours the super cable has found a new home -- in California. Will be on it's way in a few days, just have to roll it up and package for UPS. Got not quite 50% of my cost,
Aloha, On page 14, Jan, 1999, QST, Tom R's, W8JI's new, higher power antenna tuner is announced for sale by Ameritron. Description reads very nice. Now you must decide between the ATR-30, and Paul H'
Making way for the horses, so moving my antennas. Have many coax connectors out there sealed with tape and all covered with The Wireman's Connector Seal, Butyl rubber compound. I assumed a bit of pai