Re: Topband: Base Loaded Vertical vs. Asymmetrical Top Loading

2011-02-17 Thread Guy Olinger K2AV
With 60 feet vertical, getting "pure" vertical polarization just won't make any difference. Always go for the efficiency. Many people have outstanding signals with inverted L's. And as always, worrying about the wire above doesn't matter a hill of beans if the counterpoise/radial field is not in

Re: Topband: Chat Room Confirmation

2011-02-17 Thread N1BUG
Roger D Johnson wrote: > Over the years I have developed my own criteria for what > constitutes a valid contact: > > 1. I MUST copy the call of the DX station off the air. Not from > packet or a chat room. > > 2. I MUST copy my signal report off air. > > 3. I MUST hear the DX station roger my re

Topband: w4zt type bias boards

2011-02-17 Thread Ed Smith
Hi, You guys that have been asking for bias boards; Have gotten out uf the hospital and can deliver for $18 plus sgipping. Ed Smith W4EDS Spencer,VA === __

Topband: Base Loaded Vertical vs. Asymmetrical Top Loading

2011-02-17 Thread Chortek, Robert L
Dear Topband Aficionados - I could use a little help. I am currently using a 60 foot base loaded vertical, with an 8" diameter coil made of copper tubing. I know top loading gives much better efficiency. The problem is, my lot won't allow the two top loading wires to be in the same plane, so t

Topband: 160m Frequency allocations

2011-02-17 Thread Henk Remijn PA5KT
I got some reactions on my message earlier this week I posted to this group about 160m allocations. Most of the messages noted that the info was not complete. Please check http://wiki.contesting.com/index.php/160m_frequency_allocations and if you find something is wrong let me know. What would

Re: Topband: Chat Room Confirmation

2011-02-17 Thread Roger D Johnson
Over the years I have developed my own criteria for what constitutes a valid contact: 1. I MUST copy the call of the DX station off the air. Not from packet or a chat room. 2. I MUST copy my signal report off air. 3. I MUST hear the DX station roger my report. I will admit to slippage on it

Re: Topband: Chat Room Confirmation

2011-02-17 Thread Guy Olinger K2AV
I draw the line at claiming a contact when either did not actually get it over the air. I draw the line at using non-over-the-air to "fix" a log, whether contest or DXCC credit. It is clear that there is still magic in talking to VP8ORK running 100 watts on 160 meters. I looked at their on-line l

Re: Topband: Inverted L Proximity to RX Antennas

2011-02-17 Thread k8gg
> George (K8QM) wrote: All, > > I know it is important to keep RX antennas like flags, pennants and K9AYs > as far away from TX antennas as possible. In the case of a quarter wave > inverted L with approximately 50 feet vertical is it as important to keep > the RX antennas away from the hor

Re: Topband: Inverted L Proximity to RX Antennas

2011-02-17 Thread Brendan Minish
I know it's a different answer... but Be careful about RF coming back in on the RX antenna to the radio, Some radios have issues with even quite low levels (~100mW) comiing in the RX antenna port. the internal isolation may on the face of it appear good enough but any residual leakage is occurri

Re: Topband: Chat Room Confirmation

2011-02-17 Thread Diane and Edward Swynar
On 15th February, Dave wrote: "...I'm not advocating chat room confirmation, but I'm not sure what, if any, harm is caused by this practice..." ** I was always lukewarm, at BEST, when it came to such things as "The ON4KST Low-Band Chat Room" (or, "How do y

Re: Topband: Web-based SDRs and DXCC [was Web SDR's and 'Cheating']

2011-02-17 Thread John Bastin
On Feb 11, 2011, at 18:03:55, William Q Meeker wrote: > The (somewhat related) DXAC report to which I referred in the posting > has been moved or removed from the ARRL webpages. If anyone wants to > get a copy, send email to me. I contacted my ARRL director and he was able to have the link rep

Re: Topband: Chat Room Confirmation

2011-02-17 Thread Wayne Mills
I have observed that many of these "confirmations" are made during the contact. I often wonder exactly how and on which band the QSO was made. Wayne, N7NG Jackson Hole -Original Message- From: topband-boun...@contesting.com [mailto:topband-boun...@contesting.com]On Behalf Of David Raymon

Re: Topband: Inverted L Proximity to RX Antennas

2011-02-17 Thread Guy Olinger K2AV
If you model the RX antennas with the TX antennas in the model, and then without, you can see the change in RX pattern, usually with the loss of deep nulls. Some situations you can get extreme interactions and reversal of pattern or loss of any directionality. Better to model with your dimensions