I have finished building the WRAP rotor. Works great. Actually I finished it a month ago. I want to put 2 Arrow Antennas on it (and it will lift the weight) at cross angles so there is a vertical and horizontal VHF and UHF array. The arrows do not work well with circular polarization. I tried taking 2 arrows and make a VHF and UHF crossed YAGI but the 2 antennas will not tune. so now my idea is to have 2 regular arrow antennas at cross angles and, using a proper power splitter, feed the horizontal VHF (or UHF)vertical and horizontal antennas at the same time. It seems to me that the E fields will be at right angles and should not interfere. Also, because I am feeding them from the same TX, the waves should pretty well maintain phase (that is, I should not have an cancellation due to phase difference). I want to do this to help eliminate the fade as the satellite rotates. I have a receive preamp also. It seems, to me, that as the
vertical signal moves to horizontal that the vertical antenna will receive less and the horizontal antenna will receive more.
Can anyone, with a greater understanding of antennas than myself, tell why my idea would not work. I would like a technical answer if possible.
> the LituanicaSAT-1 FM transponder will be active from 0930Z-1400Z tomorrow.
> That window includes three passes over North America at around 0940Z,
1115Z, and 1245Z
> (if I've got the TLEs right - Object 39569, I believe)
I think you may have your times off Paul... I show passes over North America for May 1st at 0940 and 1115 EASTERN time (EDST). =^( Which only makes sense, because the 0930Z-1400Z operating period would need to coincide with passes over EU for people to be working LY5N.
Otherwise, I'd be outside waving my yagi around looking for you. =^D
73, Kevin N4UFO