The HV build up was mitigated by the 10pf cap between the 40-20M positions which also reduces arcing on the SB-220 which is a shorting switch and a cap can be adapted to some 160-10M amps. The right
Totally ridiculous. One pound First Class International is $10.25 at the PO and it will take a lot of tubing to add up to that in a manila envelope. Many mistakenly select Priority Mail International
I wasnt blaming Price but rather the USPS as Tom apparently realized. It is very easy to mistakenly select Priority as I clearly stated. Understand the posters intention before sending flames the nex
FWIW its worth that is a Wal Mart house brand and likely bought at the lowest possible price after beating up the manufacturer in China to near zero profit. They will give you exactly what you pay fo
Ive had 150' 2 wire Beverage made from factory twisted #18 PVC up since the fall and shows excellent directivity on 40/30/20M. It is used over at the vintage boatanchor bench. Starts right at the hou
On 4/23/2014 5:15 AM, Jaan Jürgenson wrote: I could think of isolating the guy wires or replace them for non-conductive type. I'm not sure if it possible to isolate the base today. Shunt fed the towe
Ive had inverted V's at 60, 160, and 180' that worked DX that a single or a pair of full size sloping verticals with elevated radials couldnt at that particular time. The high angle often favors sunr
Shouldnt that line be rotated along its length to maintain balance as done with OWL Beverages? Carl KM1H I used to have a 1000 foot long open wire line using 4AWG stranded insulated aluminum wire wit
Carl KM1H A big vertical is omni directional and has high signal levels. This is in contrast to the beverage which has low signal levels and tries to null out certain directions. If I disconnect the
Hardline doesnt get chewed Mike; I run 750' of 1/2" CATV on the ground to the Beverage hub. That was after flooded RG-11 and RG-6 got destroyed during a few winter months when the critters were hungr
I suspect they are talking about 75 ohm heliax, not the typical CATV hard line. The CATV hard line I've seen has an Al shield, so I would expect loss to be a bit greater than heliax, which has a much
I buy my quad shield Commscope RG-6 directly from a CATV distributor in bulk so I know it is outdoor rated as well as having published specs. The stuff from box stores, RatShak, Fleabay, hamfests, et
VHF/UHF for the better cables, the cheap stuff even from the big companies was failing down in HF, we only tested down to 5 MHz and up to 450 MHz. The good stuff passed at better than 80dB shield eff
That tenuous advantage disappears if one popular 360 ohm heavy duty window line variant of "450" line is operated at a mismatch. At that point the stranded copperweld conductors (used for physical st
Use electric fence insulators, they have slots for the wire to pass thru, I got mine at a local feed and grain store and there are several varieties. Carl KM1H I've been using 450 ohm ladder line for
What about ice forming inside the sheath from those breaks? Carl KM1H Forwarding from KZ1W: A hydraulic jack H frame press was modified to provide tension in excess of 20,000 lbs. Tension was applied
All, I had a quarter-wave 80m wire vertical (thanks to a pulley under the limb of an 80ft tall oak tree) with three elevated radials. Worked great. I bought a length of 3-inch OD B&W inductor stock a
More of a topic for a VHF/UHF forum where the question comes up often.. I use that coax on the mast and to power dividers and out to individual yagis but it certainly is not meant to survive long aro
What is this antenna, tower, rotator, and cable configuration? Im also using 5 cables and around a Tailtwister rotator. Carl KM1H I turn 1/2" Cellflex cable which is similar to FSJ4 for more then 30
I have used Andrew FSJ4 cables for years as rotor loops. Andrew does not recommend it outdoors, but I have come up with a good technique for its use. When you put the connectors on each end, be sure