Hello John! Yes, BOP can be useful for high angle paths to Europe on 14 and 7 MHz. It is most useful in high sunspot years in the early afternoon. 73! Tim K3LR When do you find the BOP useful - is it
Hi Steve! I have had great success ordering ICE products from Craig, K1QX at RadioWare. http://www.radiobooks.com 73! Tim K3LR I have had difficulty contacting ICE to inquire about an order I placed
Great point Steve! About once a week I get asked for this link where I show how I solder PL-259's WITHOUT dielectric damage. Here it is again with pictures: http://www.k3lr.com/engineering/pl259/ I h
Hello Tom: Here is an easy antenna that I built last winter for 160 meters. It is simple to build and works very well. I posted this to the TopBand reflector last December and many operators built th
Hello Chet! The radials are laid on the ground. They self bury after a few months. I was amazed how well this simple antenna worked. The efficiency is really helped with the full size 1/4 wavelength
The back yard lot is 50 ft deep going from the house to the property edge south to north. The antenna goes up over the pool into the tree. The 2 radials run east and west (1 each way). The lot is 300
Hi Jeff! I may have a motor for you. Send me a picture of what you need and I'll see if I can help you. 73! Tim K3LR --Original Message-- From: towertalk-bounces@contesting.com [mailto:towertalk-boun
Hello Dino! There is no limit on using an antenna exceeding 200 feet in height for Amateur Radio. The fact that it was an old broadcast antenna does not matter either. I hope the abandoned tower (if
Hi Bob! I have had great success getting parts from Create in Japan for RC5 type rotors. They do not come quick (no overnight shipping from JA!), but their parts and service are reliable. Check their
I would go with Amphenol. Mouser.com and The RF connection (Joel) have them in stock. Some cheaper brands use a small gauge spring for the center conductor which can cause significant issues above 20
Hi Bob! Earlier this year I took two new XM-240s and converted them to the W6NL Moxon design. They are installed at 185 ft and 120 feet on TIC Ring Rotors and can be fed alone, both in phase or both
Hello Jim! 5 KW RatPak relays fir $16.00 each. I have never used one, but I think that is what you are asking about. 73! Merry Christmas Tim K3LR http://www.k3lr.com The K3LR DX Cluster telnet://dx.k
Great work Mike! I looked at the relay specs and they look like they would work great for 1500 watts on all HF bands for an RF antenna switching application. The model RTD14012F might even be better.
The 7 page document that describes the conversion of the Cushcraft 2 ele 40 (XM240) to the W6NL Moxon design is now posted on the K3LR website. This is what I used to build the two W6NL 40 meter Moxo
Station Engineering is the 3rd link down on the left side. Click on it and you will see the Moxon document on TOP. 73, Tim K3LR I can't find it Tim. I only found the Dayton 2007 link. Dino - K6RIX di
Hi Bob! As this is a guyed (this does not work for self supporting towers) Rohn 25G tower for you, why would you not install a Rohn pier pin (inexpensive) instead of setting a portion of a section be
Hello Tom! I have been using a parasitic array on 160 meters for years with great success. My parasitic elements (4 of them) are all cut as directors. There are 3 modes to the end of these elements.
Tom, One further comment... Greg, W8WWV has recently modeled the 160 meter parasitic array that I use with EZNEC. The real world F/B was exactly where Greg said it would be. This gives good confidenc
Hello Bob! I installed a four square receiving system for 160 meters using the RG-6 cable, connectors, stripper and installation tool all purchased from DX Engineering. I installed a connector in les
Bob: I am not certain you can use the DX Engineering connectors on any other RG6 other than what they sell. The DX Engineering connectors are designed to go on that specific flooded cable. I think yo