They are all built like this. I suppose you could but that is what the wood risers are there to prevent. They give stand off to allow for mounting options. I have had mine for a couple months and haven't broken it.
They are all built like this. I suppose you could but that is what the wood risers are there to prevent. They give stand off to allow for mounting options. I have had mine for a couple months and haven't broken it.
Yeah I broke it. But I have Duck tape so its ok.
Me----"This is a results may vary type of hobby, get used to it."Originally Posted by whakahere
Well its a bit for protecting it from impact with something and also because I'm afraid after the coaxial cable moves around enough with packing and unpacking with use that it will eventually break free. So do you think the hot glue would interfere with it or be ok?
Actually I had to break off one riser on each of my two antennas because they don't allow the VRx to fit when mounted to the back...so the VRx acts as one of the risers.
This is my 2.4Ghz LHCP crosshair which I can add to my IBCrazy-antenna-collection.
I have not had time to try this one jet, but I hope for good results.
Question 1: the height of the wire above the reflector.
Is this measured from the top, the middle or from the bottom of the wire? (bottom = in between wire and reflector)
Question 2: the crosshair looks like the rx Turnstile RX UHF antenna. But the turnstile antenna has obviously no reflector plate.
Is this antenna basically the same as that of the crosshair?
The turnstile does not seem to be very popular, is a reason for that? To me it look a perfect rx UHF antenna.
Thank you Alex for all your beautiful designs! Keep going.
FransBr
Last edited by fransbr; 5th April 2012 at 06:12 PM.
Question 1: the height of the wire above the reflector.
Its the average across the wire.
Question 2: the crosshair looks like the rx Turnstile RX UHF antenna. But the turnstile antenna has obviously no reflector plate. Is this antenna basically the same as that of the crosshair?
No it is not the same. The turnstile shifts polarity across the Z axis.
Yeah I broke it. But I have Duck tape so its ok.
Me----"This is a results may vary type of hobby, get used to it."
The wood was intended for use with mounting to a tracker or a plate for a tripod. You really should not need the hot glue but it won't harm the antenna if you put a little on the back.
Yeah I broke it. But I have Duck tape so its ok.
Me----"This is a results may vary type of hobby, get used to it."
Ok here's what I'm doing and why I wondered about the hot glue...risers or not.
Looking at what you have I personally think you will be ok without it. I don't see you moving the wire that often and bashing something into it seems a bit unlikely since there is all the other equipment attached and the mount is permanently screwed to the antenna. I think there is enough there to allow it to survive.
Yeah I broke it. But I have Duck tape so its ok.
Me----"This is a results may vary type of hobby, get used to it."
I would put a little epoxy to fill in the base of the tube to keep the coaxial cable from getting damaged. It also wouldn't be a bad idea to secure it right where it comes out of the back of the antenna onto the reflector plate.
-Alex
If it is broken, fix it. if it isn't broken, I'll soon fix that.
videoaerialsystems.com - Performance video piloting
Your antenna looks very good. I think you will like it.This is my 2.4Ghz LHCP crosshair which I can add to my IBCrazy-antenna-collection.
I have not had time to try this one jet, but I hope for good results.
Question 1: the height of the wire above the reflector.
Is this measured from the top, the middle or from the bottom of the wire? (bottom = in between wire and reflector)
Question 2: the crosshair looks like the rx Turnstile RX UHF antenna. But the turnstile antenna has obviously no reflector plate.
Is this antenna basically the same as that of the crosshair?
The turnstile does not seem to be very popular, is a reason for that? To me it look a perfect rx UHF antenna.
Thank you Alex for all your beautiful designs! Keep going.
FransBr
Q1 - Middle of the wire.
Q2 - It was designed starting with a turnstile, yes. However, the Crosshair uses a balun to balance the antenna (which isn't possible with a turnstile) and uses the reflector to maintain the proper circular direction. It also uses different wire length calculations due to reflective interactions with the reflector plate.
-Alex
If it is broken, fix it. if it isn't broken, I'll soon fix that.
videoaerialsystems.com - Performance video piloting
Thanks, that was exactly the advice I was looking for
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