xwing

[thewrench002]

well i fired up the X wing satcom antenna i built awhile back. still works... guess i wil see what i can catch on it the next few days.

 

[prcguy]

I see you have the antenna pointed up at an angle, is it pointed right at what you want to receive or is the satellite straight above you? The X-wing project posted here on RR has a null straight in line with the support tube and the main lobe when the tube is pointing straight up is roughly from 20 to 60 degrees off the horizon. This was chosen for best reception within the continental US when the antenna is flat on the ground and the support tube is pointing straight up and the main lobe is otherwise omni directional. The only time you might need to tilt it over is if your on the equator and the satellite is directly above you.

This is all due to the unusual 1/2 wavelength spacing of the elements off the ground plane to get the desired radiation pattern. Other commercial/military X-wing antennas have the elements about 1/4 wavelength off the ground plane and must be pointed at the satellite.

well i fired up the X wing satcom antenna i built awhile back. still works... guess i wil see what i can catch on it the next few days.

 

[thewrench002]

I see you have the antenna pointed up at an angle, is it pointed right at what you want to receive or is the satellite straight above you? The X-wing project posted here on RR has a null straight in line with the support tube and the main lobe when the tube is pointing straight up is roughly from 20 to 60 degrees off the horizon. This was chosen for best reception within the continental US when the antenna is flat on the ground and the support tube is pointing straight up and the main lobe is otherwise omni directional. The only time you might need to tilt it over is if your on the equator and the satellite is directly above you.

This is all due to the unusual 1/2 wavelength spacing of the elements off the ground plane to get the desired radiation pattern. Other commercial/military X-wing antennas have the elements about 1/4 wavelength off the ground plane and must be pointed at the satellite.

I have it tilted for better reception to my east.not chasing any certain satellite .. I been playing around with all different angles on it to see what helps... thanks for the info you share with us... I have learned alot from your posts..

 

[prcguy]

If the satellite you are trying to receive is at the horizon like 5-10 degrees then tilting the antenna will help since its lobe goes down to about 20 deg.

I have it tilted for better reception to my east.not chasing any certain satellite .. I been playing around with all different angles on it to see what helps... thanks for the info you share with us... I have learned alot from your posts..