Hello Grant! Here are two papers on the conversion of the XM240 to W6NL/Moxon. http://www.k3lr.com/engineering/moxon/W6NL_Mox_100.pdf http://www.k3lr.com/engineering/moxon/W6NL_Moxon104.pdf Here are
Suggestions and ideas for topics are now being considered for May, 2011. If you or someone you know has a timely antenna topic/paper that would be good for presentation during the Antenna Forum this
Here is an easy method to solder PL-259 connectors http://www.k3lr.com/engineering/pl259/ No longer using Made in USA generics Only using the Amphenol 83-1SP - PL-259 from Mouser 73, Tim K3LR --Origi
Call Bob, W5OV at Array Solutions. They have a W3NQN BCB reject - high pass filter that cures the RX BCI 73, Tim K3LR I hope this is not too far off the venue but can anyone assist me on Vendors that
Hello Steve, You might try some remote relay cleaning to see if that solves your receive issue. To do this use your transceiver with the TX power set at about 20 watts. Hot switch your relay box seve
Hello Rick: I do not use the TIC boom truss kit to support the booms of my Yagi's with the TIC rings at K3LR (16 in service). I use the truss in the photo below. This way you can install the antenna
That is 2 to 3 inches of sag... 73, Tim --Original Message-- From: towertalk-bounces@contesting.com [mailto:towertalk-bounces@contesting.com] On Behalf Of Tim Duffy K3LR Sent: Monday, April 18, 2011
2011 Antenna Forum - Room 1 - Friday (May 20) afternoon - 2:30 PM to 5 PM EDT Moderator: Tim Duffy, K3LR PDF presentations from the last seven years of Dayton Antenna Forums are available at: http://
Thanks to the very hard work of Ben, AK2X and awesome support from Icom America - North Coast Contesters are proud to host the Dayton Contest Cam - live from the Contest hotel in downtown Dayton - th
Best use of your riding mower would be to use it to cut your grass very short - then within hours - lay down the radials by hand (silver solder to their radial ring around the base of the vertical -
Hello Arliss! I suggest you contact Allen Bond, WB4GNT about Rohn 25G base insulators for your 80 meter 4 square http://www.mgs4u.com/fiberglass-tube-rod.htm 73, Tim K3LR I'm looking for some suggest
I agree Tony In the late 80s when I was building my station - I had ICE single band - bandpass low power filters for all bands. They were installed between the radio and the amplifier. It wasn't long
Hello Jim: I would be very very careful with this tower. Inspecting the photos you posted, there could be significant rust issues inside the legs which would be compromised supporting any load. I wou
Hello Tom! There are 4 bolts on the Rohn TB-3 that attach it to the top tower plate. The galvanized bolts are 0.500" in diameter - the nuts are 0.750" and the bolt head is 0.875". They are 1.5" long.
The rule is towers taller than 200 feet have to be marked and lit. Towers shorter than 200 feet may be required to be marked and lit if they are determined to be a hazard to public use airport facili
Hi Tim! Take a look at these photos from K3LR. No fancy over head on the boom truss, etc. The coax rotation loop is pretty easy - with 16 TIC rings in the air - never a broken coax! http://www.k3lr.c
Hi Mike: All of my ring rotors have guy wires right under them. You can see that in the photos. Nothing fancy is needed - 25 years - no problems. 73, Tim K3LR --Original Message-- From: towertalk-bou
Mike and Tim: As long as you do not tape the coax down the boom - too close to the tower - there is no way the coax rotation loop can snag on the Rohn "guy extension arms" (they do not do anything as
Using a Create RC5B with a 10 meter Yagi (well within rotor wind load capability) - notice that there is 10 to 15 degrees of "slop" (back and forth) now while in a moderate wind. Same thing happened
I have a W0MLY modified Prop Pitch rotor system - ready to be installed (in Rohn 45 or larger) - for sale. It will turn and hold big loads. Accepts 2 to 3 inch mast - has thrust bearing as part of th