Paul, I live near salt water in a very corrosive environment... I do three things: Clean the goo with solvent (alcohol or MEK), mostly to get a good visual on the strands. I apply Noalox (contact gre
Tom, Thanks for the info. That explains why my center conductors were turning black. I have just pulled apart a 12 months old connection and found that the silver plating, despite the Noalox on the b
On Wed, 19 Sep 2012 08:33:28 -0400 "Tom W8JI" <w8ji@w8ji.com> wrote: That's a good suggestion. It really should be one award for the case where a human operator copies the signal, a man and his radio
G'Day Topbanders, These beacons are not frequency agile. As Mike points out, they are on a schedule. The entire environment they are used in is pretty primitive. They certainly do not know morse code
G'Day Topbanders, The PT0S DXpedition is scheduled to sail for St. Peter and St. Paul Rocks the evening of Nov 05 (maybe early Nov 06 because of weather). We expect to arrive on the rocks the morning
G'Day Topbanders, The PT0S DXpedition is scheduled to sail for St. Peter and St. Paul Rocks the evening of Nov 05 (maybe early Nov 06 because of weather). We expect to arrive on the rocks the morning
Dear Topbanders, We did not get away tonight. We will leave tomorrow morning (Nov 6). Accordingly, we are likely to get on the air the evening of Nov 10. Also, based on feedback from Europe, where ap
G'Day Topbanders, Here are some of the 160 m aspects of the PT0S operation that may of interest to those on this reflector. Our TB TX antenna (and RX for the first 2 nights) was an inverted L located
After spending 12 nights-in-a-row straining to hear and assemble thousands of weak calls, I would cautiously agree with Herb: if the DX clearly has the prefix, just send the missing letters. Maybe it
Tom, The technology you are talking about is called NFC, Near Field Communications. It uses the magnetic (H) part of the RF radiation -- near field -- but it does have an electric component, although
Luc, The K3 some coupling between the ANTENNA 1 and the RX ANT ports. The attenuation is around 50 dB. Normally this is not a problem, as the band noise on RX ANT is higher than the signals leaking t
On Tue, 25 Jun 2013 20:22:45 -0400 "Mark Lunday" <mlunday@nc.rr.com> wrote: I am wondering what other folks do for their receive antennas to protect their rigs. Mark, I always add the following to my
Jim, My home QTH and all my DXpeditions had SpiderPole verticals for 80 and 160 (and other bands). You have a wide range of options. A lot depends on how much work you are willing to do and how much
Jim, The shiny coating on my 18 m bare SpiderPole mast got grayish, brittle and started chipping after about 8 months. Subsequently, the mast broke. The fiberglass at the break appeared to be "dusty"
On Mon, 16 Dec 2013 14:32:41 -0500 "Charlie Cunningham" <charlie-cunningham@nc.rr.com> wrote: Many black plastics are "blackened" by the addition of "carbon black" that can make them rather lossy at
1. In all my antenna systems I always use some wetting current. I feed from 24 V about 2 mA of DC wetting current via a 1 mH choke and a 4k7 resistor at each end. I used to have receive problems with
Topbanders, Rest assured that there will be a substantial 160 m operation from KP1. I am planning and building the low band antennas and gear right now. We will be releasing more details later. Georg
Jon, I was one of the 160 m operators. NA callers were thick during the evening hours when they were competing with EU, making for some difficult pile-ups, but after midnight (and EU sunrise), often
Don, I have referred to VFD-s in an early posting as "RF Weapons of Mass-Destruction". Still, they are useful and I got one in my house. As the contractor in your description did, I installed a line
Robert, Gary, KD9SV, has designed an amplifier specifically for these low gain RX antennas. It is being sold by DXengineering. George, AA7JV On Mon, 2 Nov 2015 22:54:54 -0800 Robert Fanfant <rfanfant