I personally prefer a Lindenblad or quadrafilar helix for an omni antenna. My 2M Lindenblad is approx 10db worse than my Az El tracking CP yagi. If I were relying on an omni, I’d definitely consider using a good GasFET preamp, but ymmv.
73, K4CKB
On Dec 8, 2020, at 4:33 PM, Zach Metzinger zmetzing@pobox.com wrote:
On 12/08/20 12:17, marzo7088@yahoo.com wrote: I am looking into building 2 omni-directional satellites,just wondering if anyone is familiar with these 2 and can give me their opinions on them? link:
Hello Rich,
You haven't mentioned which bands, but I assume the pair would be 2m and 70cm.
I've tried the K5OE square eggbeater for 2m and was disappointed. I've found that a "copper cactus" J-Pole (without LNA) for 2m works very well.
An example of reception for the J-Pole: http://www.n0zgo.net/oscar/ao-91.mp4
Are you a member of AMSAT? If so, check out the latest issue (Sep/Oct 2020) of the AMSAT Journal for a 70cm omni-directional solution in the form of 3-D printed antennas.
An example of reception for my 70cm passive Lindenblad design (seek about 7 minutes in for strongest signals): http://www.n0zgo.net/oscar/rs44_20201028_2126Z.mp4
73,
--- Zach N0ZGO
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