Can anyone tell me the highest they where able to record with the whip antenna on the teledogle. When does it go out of range. I'm debating on the Arrow 440-3. But not sure if it necessary. My computer model estimates about 3,500 ft with the setup I have so far. Any thoughts would be appreciated. Thanks
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I am about to use my Altus Mentrum for the first time this Saturday. I have bought the Arrow 440-3 antenna. Can you tell me the best way to hook it up. I'm not sure how long of an extension from the Teledongle I can use. I thought I read somewhere that the teledongle should be as close to the antenna as possible. But I can't find that now. Also, during the launch do you need to be pointing the antenna directly at the rocket or can you attach it to something and point it in the in a general direction of the launch. Any thoughts would be appreciated.
I recently bought a Telemetrum Starter Kit from the Garbee and Garbee Web
There is a combo box where you can choose "1/4 wave wire" or "SMA connector
I didn't really give it much thought, but I picked "SMA connector" (I think
I may have
thought: "it cost more, it must be better")
When I got the starter set, I realized that that it wasn't "in addition to
a 1/4 wave wire"
but "instead of". So ... I went back to the gag.com site and found the Whip
and bought that.
Then I got to thinking about how I would install the altimeter with whip
antenna in a
rocket. (Good time to start thinking about it, eh? :-)
My (first) target rocket for the Telemetrum is a Giant Leap Vertical
and it doesn't have "acres" of space.
So my first question is:
Can I just bend the whip antenna into a horse-shoe shape to get it to fit
altimeter bay? (I guess the really question is "Will this significantly
performance of the antenna?") And if it is "a bad idea" what should I do?
My first thought was to find a short SMA male to SMA female cable so that
antenna can be straight. Is this "a good idea"? (necessary?, etc)
Next: in poking around the Altus Metrum and gag.com web sites while
about my altimeter question, I saw a link to a "SMA To BNC adapter" on the
I bought an Arrow II Hand Held Portable Antenna 440-3 and in looking more
at the product description page, it looks like it has a BNC connector.
So it looks like I'll need to get either the SMA to BNC adapter or get a
with a male SMA connector on one end and a male BNC connector on the other.
Have I got that right?
If so, any recommendations?
Peter "I just got my ham radio technical license, so *clearly* I'm an
expert on all things RF" Hackett
:-) or :-< or :-/ ?