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46
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eHam Forums / Elmers / Birds I don't like to hear singing...
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on: September 17, 2009, 03:02:56 PM
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Hello Folks,
I hope all is well with you.
I am getting birdies every ~5Khz, on all bands. When I unplug the antenna, the birdies go away. I, therefore, think that it is not an internal rig problem, but
something around the house/antenna. The birdies are about an S 3 on the meter.
Any thoughts as to what it may be and/or how to fix?
Regards,
Marc
KA3DNR
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47
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eHam Forums / Elmers / WARC BANDS INVESTMENT?
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on: September 17, 2009, 03:00:58 PM
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What AH6RR said is perfect. WARC is great for 30 M, and now 17 meters is starting to peep it's head out.
Thirty meters is a very nice CW band.
Marc
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49
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eHam Forums / Elmers / How long, oh how long?
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on: September 13, 2009, 10:14:30 AM
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Elmers, et al.,
How long is this sunspot low going to last? It seems like it's been over two years.
And, does this long zero sunspot non-activity forebode a very weak peak?
Regards,
Marc
KA3DNR
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50
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eHam Forums / CW / My first ever Amateur Radio contact
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on: September 12, 2009, 12:27:43 PM
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Welcome to the hobby Dene!
I was just as nervous.
Radio communication is fascinating, and conversing with someone with no more than dots, dashes and spaces between them, is simply amazing.
I hope one day to work you, no matter how fast or slow you go...
Welcome!
Marc
KA3DNR
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52
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eHam Forums / CW / So what is it about CW?
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on: September 08, 2009, 10:32:05 PM
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Fantastic post Dene!
Welcome to the world of CW.
I love it too...
I enjoy working the CW ops so much...
Ah heck, you've made me now get all excited to have a CW QSO...I am going to run over to the rig and have a nice CW chat!
Regards,
Marc, KA3DNR
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55
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eHam Forums / CW / Is CW going to survive?
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on: September 05, 2009, 11:07:08 AM
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I love you guys...
I feel the need for a massive cw op group hug!
All in!
You are the best!
Regards,
Marc, KA3DNR
(Catch me on the low end of 40. I need to remember that we have 30 meters and get on there too...)
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56
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eHam Forums / CW / Is CW going to survive?
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on: September 05, 2009, 11:03:57 AM
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"I think that cw should be declared historical heritage ot telecommunications."
Brilliant! I love it!
We should get some rebate from the government for using said communications...enough to cover the cost of our equipment, of course!
Marc
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60
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eHam Forums / Elmers / Two Element Vertical Phased Array Spacing...
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on: September 04, 2009, 10:16:49 AM
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Hello,
Making multi-band, two-element vertical phased array, even with dissimilar antennas is extremely easy. So easy, that I am wondering why more haven't done this:
1. Get two verticals (doesn't matter if they are the same or not). Merely elevate them a few feet with two opposite direction elevated ground wires 33' or greater (length not critical, and four is a waste).
2. Space them, say 33' apart.
3. Feed them with ladder line.
4. Use a DPDT relay, switching between 0 degree phasing (verticals connected to each other, and grounds connected), and 180 degree phasing (vertical on one connected to ground on the other)
5. Done!
A switchable-direction vertical phased array is that easy. You don't need expensive switch boxes, or cables lying (phasing lines)all over the place.
Lest you think I am fantasizing. I had done much empirical testing with single verticals, ground mounted (several ground wires to 130), and elevated verticals (2 to 4 ground wires, at varying lengths). Both as single verticals and as phased verticals. What I mention above absolutely works! The phasing has noticeable gain (rx and tx) over a single element, and you get sizable attenuation from non-lobe areas.
What I was forgetting now was the spacing for optimal 20-30-40M broadside gain, as I don't care about switching it, as long as I can get general broadside firing.
Regards,
Marc
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