Dear All,

Thank you for all the replies regarding this subject. By mounting the antennas horizontally will save me a lot of trouble, so I guess this is the way I will go.

Once again, thank you for all the replies, it is really appreciated and my apologies for not getting back to each message individually.

73, Sion Chow Q. C., 9W2QC.

-----Original Message----- From: Jim Jerzycke [mailto:kq6ea@pacbell.net] Sent: Friday, May 25, 2007 11:42 PM To: Sion Chow Q. C. (9W2QC) Subject: Re: [amsat-bb] Horizontal Polarized Antenna

I use my "terrestrial" horizontal 2M/70cm antennas and my FT-847 to work the satellites and the ISS, and other than not being able to use the higher elevation passes, they work fine. I have an M2 7 element 2M, and an M2 11 element 70 cm antenna on a 5' tripod, mount to the roof of a large 2 story commercial building. I have a clear view over 360*, and if I can hear the satellite, I can get in to it. Jim KQ6EA

--- "Sion Chow Q. C. (9W2QC)" 9w2qc@9w2qc.net wrote:

...

Dear All,

Currently for my satellite station I am using double stacked vertical polarized yagi antennas for 2M and 70 CM.

However, due to mounting constrains, I would like to mount them in a H configuration instead, on the G-5500 rotator, with the 2M antenna on one side and the 70 cm antenna on the other. A yagi for L and S band will be mounted in between the two antennas on the horizontal boom.

This would mean that I will require the antenna to be horizontally polarized instead of vertically polarized unless I use a non-metallic boom. Before I perform this, I would like to know what are the differences with using horizontal instead of vertical polarization when operation the LEOs such as AO-51, SO-50 and etc. Also, what are the effects of using a horizontal polarization with the ISS on 2M?

Sorry if this has been asked before, but was just trying to be sure before I perform any major modifications. Thank you very much in advance.

73, Sion Chow Q. C., 9W2QC.

---

Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb