[amsat-bb] Antennas

Greg D ko6th.greg at gmail.com
Mon Feb 20 02:58:08 UTC 2017

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
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