Re: Topband: Vertical antennas aren't always best for DX

2018-11-24 Thread Steve Ireland
Hi Jerry Thanks so much for posting that excellent article – I had forgotten about it! For those who want to understand more about geomagnetic lat/long and gyrofrequency effects on 160m, it is just about the best article I ever came across – and shows why 160m is truly THE ‘magic band’. Vy 73

Topband: use of WD-1 Military field phone wire for bog and/or beverage (terry burge)

2018-11-24 Thread Larry
Terry: I tried a reversible BOG a couple years ago, and found that there was a reason nobody talked about it; the attenuation of the ground made the signal coming back along the two wires MUCH weaker. I was using 16 ga copper landscape wire; I tried several different impedance ratios but never co

Re: Topband: Vertical antennas aren't always best for DX everywhere - the facts

2018-11-24 Thread K4SAV
Here is an interesting pdf document including information on the effects of Earth's Electron Gyrofrequency on 160 meters. The 160-Meter Band: An Enigma Shrouded in Mystery http://solar.spacew.com/cq/cqmar98.pdf Jerry, K4SAV On 11/24/2018 5:08 AM, Steve Ireland wrote: Hi Frank (and Rick) Som

Re: Topband: ARRL DXCC - 160 Meters - Station Location and Boundary

2018-11-24 Thread GEORGE WALLNER
Dear TopBanders, I think the League's rules have not caught up with the digital age. Four things have changed since the "analog age": 1. Noise is up 2. 160 meter DXCC (and up) is one of the last remaining HF DX challenges 3. Shared low-noise RX sites have become easy to build and for many may be

Re: Topband: ARRL DXCC - 160 Meters - Station Location and Boundary

2018-11-24 Thread Paul Mclaren
Bill, Lloyd You can overcome the audio mute on TX issue with the SDR Radio Console and Server software from Simon Brown. The Console software syncs with my rig (TS590S) using Omnirig so can mute the RX audio on TX so you don't hear your transmitted signal. Some rewiring of the headphone cable al

Re: Topband: ARRL DXCC - 160 Meters - Station Location and Boundary

2018-11-24 Thread Bill Cromwell
Hi Lloyd, What you have described is pretty much what I have envisioned. Personally I am still receiving at my home with occasional QRM from industrial sources. DSP is easing the problems for me. The problems with the gee-whiz approaches are centered around "latency". Tap your Morse key and t

Re: Topband: Vertical antennas aren't always best for DX everywhere - the facts

2018-11-24 Thread Steve Ireland
Hi Frank (and Rick) Somewhere I have a map of the lines of geomagnetic latitude superimposed on a Mercator projection of the world, but I can’t find it right now. Unlike the ruler-straight lines of conventional latitude, geomagnetic latitude lines wander across the world like a collection of s

Re: Topband: ARRL DXCC - 160 Meters - Station Location and Boundary

2018-11-24 Thread David Cutter via Topband
It's the shared receive-only site that I will build for my club. I can't think of a better application of subs for members who live in high density housing as we do. LF is now completely out of the question for all but a privileged few. David G3UNA/G6CP -Original Message- From: Topband [