Any good suggestions for cheap 8 conductor rotor cable?
I'm gonna use two of the alliance U-110 rotors, and they are 4 conductor rotors. soooo, need 8.
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 2/19/2017 6:34 PM, Wendy and Terry Osborne wrote:
Hi Joe,
Vertical works fine but man made noise is mostly vertically polarised so you will get a bit more of that. With horizontal, you have more problems with ground reflection so you get more fading.
Depending on how big your metal cross boom is you will have no problems on 2M. On 70CMs the metal boom upsets the gain/radiation pattern. I tried this with a 2"" cross boom and it didn't work well at all. A shorter yagi, end mounted worked much better.
73, Terry ZL2BAC
-----Original Message----- From: Joe Sent: Monday, February 20, 2017 6:05 AM To: amsat-bb Subject: [amsat-bb] Antennas
Weather is nice, Time to put up antennas.
Now I know most like to go CP, But I'm on a limited budget. So it will need to be a traditional linearly polarity yagi,
Of course I can mount them vertically or horizontally polarized. And if it was just one band, is there ny preference to vert or horiz?
I don't see any, except from the man made noise issue when on low elevations.
is there any best polarity?
I'm planning on a side by side 2 meter and 70 cm set up 2 meter vertically polarized on one end of a cros boom, and the same on the other side but 70 cm.
This way I can get away with using a metal cross boom.
Thoughts?
Joe WB9SBD
If it's a fairly short run, maybe CAT-5? If it's a little longer run, maybe twist 4 pairs and run a CAT-5 for each rotator?
Jerry Buxton, NØJY
On 2/19/2017 19:53, Joe wrote:
Any good suggestions for cheap 8 conductor rotor cable?
I'm gonna use two of the alliance U-110 rotors, and they are 4 conductor rotors. soooo, need 8.
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 2/19/2017 6:34 PM, Wendy and Terry Osborne wrote:
Hi Joe,
Vertical works fine but man made noise is mostly vertically polarised so you will get a bit more of that. With horizontal, you have more problems with ground reflection so you get more fading.
Depending on how big your metal cross boom is you will have no problems on 2M. On 70CMs the metal boom upsets the gain/radiation pattern. I tried this with a 2"" cross boom and it didn't work well at all. A shorter yagi, end mounted worked much better.
73, Terry ZL2BAC
-----Original Message----- From: Joe Sent: Monday, February 20, 2017 6:05 AM To: amsat-bb Subject: [amsat-bb] Antennas
Weather is nice, Time to put up antennas.
Now I know most like to go CP, But I'm on a limited budget. So it will need to be a traditional linearly polarity yagi,
Of course I can mount them vertically or horizontally polarized. And if it was just one band, is there ny preference to vert or horiz?
I don't see any, except from the man made noise issue when on low elevations.
is there any best polarity?
I'm planning on a side by side 2 meter and 70 cm set up 2 meter vertically polarized on one end of a cros boom, and the same on the other side but 70 cm.
This way I can get away with using a metal cross boom.
Thoughts?
Joe WB9SBD
Sent via [email protected]. 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
DX Engineering sells very good rotor cable, as does Davis RF.
And there's always eBay or Amazon.....
73, Jim KQ6EA
On 02/20/2017 02:17 AM, Jerry Buxton wrote:
If it's a fairly short run, maybe CAT-5? If it's a little longer run, maybe twist 4 pairs and run a CAT-5 for each rotator?
Jerry Buxton, NØJY
On 2/19/2017 19:53, Joe wrote:
Any good suggestions for cheap 8 conductor rotor cable?
I'm gonna use two of the alliance U-110 rotors, and they are 4 conductor rotors. soooo, need 8.
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 2/19/2017 6:34 PM, Wendy and Terry Osborne wrote:
Hi Joe,
Vertical works fine but man made noise is mostly vertically polarised so you will get a bit more of that. With horizontal, you have more problems with ground reflection so you get more fading.
Depending on how big your metal cross boom is you will have no problems on 2M. On 70CMs the metal boom upsets the gain/radiation pattern. I tried this with a 2"" cross boom and it didn't work well at all. A shorter yagi, end mounted worked much better.
73, Terry ZL2BAC
-----Original Message----- From: Joe Sent: Monday, February 20, 2017 6:05 AM To: amsat-bb Subject: [amsat-bb] Antennas
Weather is nice, Time to put up antennas.
Now I know most like to go CP, But I'm on a limited budget. So it will need to be a traditional linearly polarity yagi,
Of course I can mount them vertically or horizontally polarized. And if it was just one band, is there ny preference to vert or horiz?
I don't see any, except from the man made noise issue when on low elevations.
is there any best polarity?
I'm planning on a side by side 2 meter and 70 cm set up 2 meter vertically polarized on one end of a cros boom, and the same on the other side but 70 cm.
This way I can get away with using a metal cross boom.
Thoughts?
Joe WB9SBD
Sent via [email protected]. 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Actually, you only need 7 (common ground between them is ok). There should be "sprinkler wire" or some search term for low voltage wiring that comes in I think 18 or 20 gauge at the local hardware store, commonly used for sprinkler control systems. That's what I use.
Greg KO6TH
Joe wrote:
Any good suggestions for cheap 8 conductor rotor cable?
I'm gonna use two of the alliance U-110 rotors, and they are 4 conductor rotors. soooo, need 8.
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com On 2/19/2017 6:34 PM, Wendy and Terry Osborne wrote:
Hi Joe,
Vertical works fine but man made noise is mostly vertically polarised so you will get a bit more of that. With horizontal, you have more problems with ground reflection so you get more fading.
Depending on how big your metal cross boom is you will have no problems on 2M. On 70CMs the metal boom upsets the gain/radiation pattern. I tried this with a 2"" cross boom and it didn't work well at all. A shorter yagi, end mounted worked much better.
73, Terry ZL2BAC
-----Original Message----- From: Joe Sent: Monday, February 20, 2017 6:05 AM To: amsat-bb Subject: [amsat-bb] Antennas
Weather is nice, Time to put up antennas.
Now I know most like to go CP, But I'm on a limited budget. So it will need to be a traditional linearly polarity yagi,
Of course I can mount them vertically or horizontally polarized. And if it was just one band, is there ny preference to vert or horiz?
I don't see any, except from the man made noise issue when on low elevations.
is there any best polarity?
I'm planning on a side by side 2 meter and 70 cm set up 2 meter vertically polarized on one end of a cros boom, and the same on the other side but 70 cm.
This way I can get away with using a metal cross boom.
Thoughts?
Joe WB9SBD
Sent via [email protected]. 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
I also use Uv-protected cat5 and sprinkler wire on my towers depending on length and load with no failures in 5 years now
Sent from a mobile device.
On Feb 19, 2017, at 6:58 PM, Greg D [email protected] wrote:
Actually, you only need 7 (common ground between them is ok). There should be "sprinkler wire" or some search term for low voltage wiring that comes in I think 18 or 20 gauge at the local hardware store, commonly used for sprinkler control systems. That's what I use.
Greg KO6TH
Joe wrote:
Any good suggestions for cheap 8 conductor rotor cable?
I'm gonna use two of the alliance U-110 rotors, and they are 4 conductor rotors. soooo, need 8.
Joe WB9SBD Sig The Original Rolling Ball Clock Idle Tyme Idle-Tyme.com http://www.idle-tyme.com
On 2/19/2017 6:34 PM, Wendy and Terry Osborne wrote: Hi Joe,
Vertical works fine but man made noise is mostly vertically polarised so you will get a bit more of that. With horizontal, you have more problems with ground reflection so you get more fading.
Depending on how big your metal cross boom is you will have no problems on 2M. On 70CMs the metal boom upsets the gain/radiation pattern. I tried this with a 2"" cross boom and it didn't work well at all. A shorter yagi, end mounted worked much better.
73, Terry ZL2BAC
-----Original Message----- From: Joe Sent: Monday, February 20, 2017 6:05 AM To: amsat-bb Subject: [amsat-bb] Antennas
Weather is nice, Time to put up antennas.
Now I know most like to go CP, But I'm on a limited budget. So it will need to be a traditional linearly polarity yagi,
Of course I can mount them vertically or horizontally polarized. And if it was just one band, is there ny preference to vert or horiz?
I don't see any, except from the man made noise issue when on low elevations.
is there any best polarity?
I'm planning on a side by side 2 meter and 70 cm set up 2 meter vertically polarized on one end of a cros boom, and the same on the other side but 70 cm.
This way I can get away with using a metal cross boom.
Thoughts?
Joe WB9SBD
Sent via [email protected]. 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
Sent via [email protected]. 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. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://www.amsat.org/mailman/listinfo/amsat-bb
participants (5)
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Greg D -
Jerry Buxton -
Jim Jerzycke -
Joe -
Kelly Keeton