Elk antenna and satellites
Is anyone using the Elk dualband log periodic in a base station setup on the satellites? If so, how does it do overall and is the mounting for it pretty easy to do? Interested in any comments you may have about this antenna. eham.net comments about it are positive.
73 John AF5CC
I use it portable. K3RRR did something interesting here
http://k3rrr.com/cheap-computer-controlled-tv-rotor-for-amsat-satellites-and...
On Sat, Apr 23, 2022 at 4:48 PM John Geiger [email protected] wrote:
Is anyone using the Elk dualband log periodic in a base station setup on the satellites? If so, how does it do overall and is the mounting for it pretty easy to do? Interested in any comments you may have about this antenna. eham.net comments about it are positive.
73 John AF5CC
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Here’s another link
http://k3rrr.com/attic-amsat-antenna-working-the-ham-radio-satellites-with-a...
On Sat, Apr 23, 2022 at 5:15 PM Brian Wilkins [email protected] wrote:
I use it portable. K3RRR did something interesting here
http://k3rrr.com/cheap-computer-controlled-tv-rotor-for-amsat-satellites-and...
On Sat, Apr 23, 2022 at 4:48 PM John Geiger [email protected] wrote:
Is anyone using the Elk dualband log periodic in a base station setup on the satellites? If so, how does it do overall and is the mounting for it pretty easy to do? Interested in any comments you may have about this antenna. eham.net comments about it are positive.
73 John AF5CC
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
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ISS has its own challenges because of the antenna position relative to your QTH. It does take some twisting for Arrow and Elk. But it’s a matter of taste for some people. I got VUCC using Elk only
On Sat, Apr 23, 2022 at 5:21 PM Greg D [email protected] wrote:
There are those who swear by the Elk, and those who swear at it.? I'm usually in the later camp...
The issue for me is the pattern, which appears to be both broad and at times unpredictable (notably on 70cm).? I did manage to snag an ISS repeater contact with just 5w about a month ago, which was a surprise.? It's also done well for me at relatively close-in fox hunting (with attenuators), and it disassembles easily into a relatively small package.? Lots of mounting options, using construction-oriented PVC pipe techniques.? But as a base antenna for working satellites I'd probably go with something a bit more conventional.? The Elk is really oriented toward portable operations.
On a positive note, both 2m and 70cm are in the same plane with the Elk, which matches the configuration of many satellites.? If you can hear the bird, it's likely that it can hear you.? The Arrow, on the other hand, has them at 90 degrees which makes for a problem if fixed.? Hand-held is ok, with appropriate wrist (and forearm) action.
Have fun,
Greg? KO6TH
John Geiger wrote:
Is anyone?using the Elk dualband log periodic in a base station setup on the satellites?? If so, how does it do overall and is the mounting for it pretty?easy to do?? Interested in any comments you may have about this antenna.? eham.net comments about it are positive.
73 John AF5CC
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list athttps://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
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John, I did at one point, but no longer. (See picture.) The PVC cradle for mounting it is not hard to make. It seemed to work fine on linears, but only fair on FMs. Being able to rotate on the bore access might have helped, but then you’re back to handheld portable operation. Because it is co-planar on 2 and 70 and has a single feed, there’s de-sensing when the uplink is on 2. That’s a more curable problem on an Arrow from what I’ve read, having never used an Arrow myself. You’ll probably ask about the tracker that’s pictured. It was designed by WB0OEW and published by him in QEX a number of years ago. He had a website that had an updated version which is what I built. But that website no longer exists. I’d go with a different solution today. In fact, I’m trying to get up to speed on C++ so I can code a version for portable operation that’s driven by SatPC32 over a USB cable. 73,Ray KN2K
John, I did at one point, but no longer. The PVC cradle for mounting it is not hard to make. It seemed to work fine on linears, but only fair on FMs. Being able to rotate on the bore axis might have helped, but then you’re back to handheld portable operation. Because it is co-planar on 2 and 70 and has a single feed, there’s de-sensing when the uplink is on 2. That’s a more curable problem on an Arrow from what I’ve read, having never used an Arrow myself. 73,Ray KN2K
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On Saturday, April 23, 2022, 4:47 PM, John Geiger [email protected] wrote:
Is anyone using the Elk dualband log periodic in a base station setup on the satellites? If so, how does it do overall and is the mounting for it pretty easy to do? Interested in any comments you may have about this antenna. eham.net comments about it are positive. 73 John AF5CC -----------------------------------------------------------
Sent via AMSAT-BB(a)amsat.org. AMSAT-NA makes this open forum available to all interested persons worldwide without requiring membership. Opinions expressed are solely those of the author, and do not reflect the official views of AMSAT-NA. Acceptable Use and Privacy Policies available at https://www.amsat.org/about-amsat/
View archives of this mailing list at https://mailman.amsat.org/hyperkitty/list/[email protected] To unsubscribe send an email to amsat-bb-leave(a)amsat.org Manage all of your AMSAT-NA mailing list preferences at https://mailman.amsat.org
participants (4)
-
Brian Wilkins -
crohtun＠aim.com -
Greg D -
John Geiger