Re: Topband: OT - Bonding Radials at Intersections

2020-11-06 Thread Carl Clawson
Frank, “Must” is a strong word. What goes wrong if you cross them? 73, Carl WS7L On Thu, Nov 5, 2020 at 9:47 PM wrote: > Hi Bob, > > > While bonding the radials is desirable, its not essential. But you > must NOT cross the radials over each other. > > > ... > 73 > Frank > W3LPL > > > > > >

Re: Topband: Elimination of Treadmill RFI on 160 meters

2015-01-29 Thread Carl Clawson
Nice to hear all the comments, recommendations, and indeed some success stories here. I too have a treadmill problem. Although I'm blessed with a radio-friendly spouse who always asks before she starts it up, I'd like to add a line filter. Ferrites on the cord don't by themselves squelch it.

Re: Topband: Help put Haiti on topband

2014-10-07 Thread Carl Clawson
Thanks to all for the comments. I will pass them along to Dale, who is not on the reflector at this time. (I need HH on 160 too!) 73, Carl WS7L _ Topband Reflector Archives - http://www.contesting.com/_topband

Re: Topband: ARRL 160 contest observation

2013-12-11 Thread Carl Clawson
I guess Jim must have missed the opening last January. On the 8th through 10th I put PA, S5, GD, SM, OH, LA, and TF in the log from Oregon - 4 new ones plus a couple old friends. Heard about a dozen other EU entities on the 8th but the pileups were too ferocious for me to break. That was the first

Re: Topband: ARRL 160 contest observation

2013-12-11 Thread Carl Clawson
Interesting. On every other band from the West coast, south is usually better. I've always blamed the auroral zone for that. I guess this is a case of 160 once again showing its unique character. 73, Carl WS7L On Wed, Dec 11, 2013 at 12:28 PM, Jim Brown j...@audiosystemsgroup.comwrote: I

Re: Topband: one-way propagation

2012-12-05 Thread Carl Clawson
On my 80 meter NTS net last evening (1830 local time) I noticed that the critical frequency had dropped below 3.5 MHz. I could barely hear some stations that were only 40 miles away and my neighbor Claire N7CM reported that she heard no one but me. (No problem working 5T0SP, however, which

Re: Topband: one-way propagation

2012-12-04 Thread Carl Clawson
I'm weighing in with Tom here. The reciprocity theorem in electromagnetism is well known, and it shows that no amount of focusing, defocusing, scattering, refraction, or reflection will by themselves cause one way propagation. If you take away the earth's magnetic field and its attendant Faraday

Re: Topband: one-way propagation

2012-12-04 Thread Carl Clawson
Yes, a good point that I neglected. This entirely circumvents my yammerings about reciprocity. Reciprocity is a characteristic of a single pair of ports in a network. Introducing separate receive antennas can surely cause a one way effect. Consider what happens when I hook up a dummy load as a Rx

Re: Topband: Patience in ARRL 160 Contest

2012-12-03 Thread Carl Clawson
If I send CQ...CQ...K9JWV...K9JWV...K - and someone arrives on frequency ... Which gives me an opening to air a pet peeve. NEVER when contesting (or DXing) send a K after your call sign! Maybe not so bad for a 1x3 or 2x3 (though still possibly confusing with QSB) but it can be deadly with a 1x2

Re: Topband: 160M CONTEST SCORING

2012-02-25 Thread Carl Clawson
Heard you CQing 5 x 5 here in Oregon last night, Herb. I didn't have time to get into the test this weekend so I was just having a quick listen to see what was up. Can't fathom why you didn't get any answers. 73, Carl WS7L -Original Message- Gentlemen, I have been calling CQ tonight

Re: Topband: QRP Question

2011-12-12 Thread Carl Clawson
Another constant irking remarks extant is the use of Roger in place of over or go ahead. To which I always remark...my name is Herb, not Roger... Roger? Heh heh. Good one, Herb. Adhering to ITU phonetics one should say Romeo but I've never heard that. 73, Carl WS7L

Re: Topband: A word from the moderator

2011-04-26 Thread Carl Clawson
-Original Message- One thing to think about in this discussion - is where the current goes as it diminishes as you work your way along a 1/4 wave wire (let's not bring the inductor into it just now for this discussion). I have never really thought about this - but one of our