I did not understand the controller swap test, so it could be a bad 12 volt (7812) regulator in the problem controller. 73! Tim K3LR _______________________________________________ __________________
Hello Jack! I am using 3" tubing for 60 ft booms on 20 meters. No problems. There are lots of places to buy aluminum tubing. Use Google and you will find something close to you. 73! Tim K3LR ________
I think there is some confusion going on here. There are two versions of DX Engineering boxes that I am aware of. The 1st was a copy of the Comtek box. Built by the former DX Engineering company in O
Hello Rick! I don't understand the your statement, "The Array Solutions is the box that does things right". The Comtek box certainly does what it was supposed to do. I've measured its performance on
I don' think uneven ground can be compensated with either box unless you have several pieces of field test equipment to tune the array and then it will only hold for one direction. The best way to de
Anyone who is concerned with the difference in antenna efficiency with respect to elevated radials VS. ground mounted radials (assuming you have a choice) should re-read Frank, W3LPL's excellent post
Hi Tony! Try my favorite fast shipping Yagi parts building place > DX Engineering Part # DXE-P8A 8 oz. $11.95 + shipping. 73! Tim K3LR _______________________________________________ ________________
Better ground conductivity would help the raise the efficiency of an antenna using a raised radial installation (with 4 radials 15 feet off the ground for 1.8 MHz) more than one using ground mounted
The discussion around TFE reminds me of a question I have: What is the difference (advantage) of TFE per MIL-P-19468A over Diallyl Phthalate MIL-M-14F, type SDG? These are two common insulators used
It was suggested on this reflector several years ago that critters do not like moth balls. So I put my coax that would lay on top of the ground in a box with moth balls for about a week before spread
The discussion about cutting "perfect length" 75 ohm 1/4 wave lines reminded me about the fact that in many cases you really want to cut your lines higher in frequency than where you ultimately want
Hello Pres! Green Heron makes a super controller for your application. http://www.greenheronengineering.com 73! Tim K3LR http://www.k3lr.com n6ss wrote: ______________________________________________
Hello Bill: I have been using the W0IYH choke design for many years. It uses 100 beads over RG-142 teflon coax. I install PL-259s on both ends of the choke so that it can be installed in series with
Hi Gale! Look here: https://www3.qth.com/~comteksy/secure/ 73! Tim K3LR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTal
Can anyone tell me why there are two types of Penetrox? Thanks and 73, Tim K3LR _______________________________________________ _______________________________________________ TowerTalk mailing list
Ham Radio magazine is completely available on CDs. I use mine all the time. Contact the Radioware & Radio Bookstore for fast service. Craig, K1QX does a super job. http://www.radiobooks.com/ 73! Tim
Thanks for all of the Penetrox info! You guys are the best! 73! Tim K3LR _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTa
HI Jeff: Send email to carl@ticgen.com Carl will respond right away! 73! Tim K3LR Can someone give me contact information (phone and email) for TIC Gen Director (or whoever is now selling Tic Rings)?
Hello Steve and Lloyd! I have the very same omni antenna series fed vertical for 160 meters. My feedpoint impedance is 36.5 +j0 at 1830 KHz. A simple L network (series L with shunt C) gives 50 +j0 at
Hello Stein! Starting on page 130 of Volume 7 of the ARRL Antenna Compendium shows the mono band stacking schematics I use. They are built from 1/4 wave sections of RG213, RG11 and RG83. The book is