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Today I was given an antenna...

Peter Walker

W9WDX Amateur Radio Club Member
Feb 23, 2011
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Today at work I was given an antenna and I'm not sure what kind it is. I'm pretty sure its a 2 Meter antenna but other than that its a mystery to me. I'm including some pictures in hopes someone might recognize it. Also, can anyone tell me what that connector is called. I just got home so I'm thinking its an SMA or something like that?
 

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The elements look to short for VHF, Look like maybe a UHF or a 800/900 mhz hard to tell the length from the photo. oh and the connector is a "N"
 
Looks very much like 1.2GHz based on the very rough size reference provided by your hardwood flooring. They look like standard hardwood planks, roughly 2.5-3" across.. A full wave at 1200MHz is roughly 25cm long, or .8', and the driven element of a yagi is 1/2 wave. That antenna's driven element looks like it could be slightly less than 6 inches long.
 
So given all that has been posted, what would the antenna be good for? Sending digital?

Boom length is 28 inches
Driven Element is 6 1/4 inch
Reflector is 7 3/8 inch
Directors are 5 5/8 inch
 
It's definitely a type N connector and the antenna looks very much like an 800/900 MHz antenna possibly for fixed station cellular use. I used to have a cellular yagi that looked very much like that. That was back in the bag-phone days of crappy analog service.
 
I wound up contacting the company that took over Celwave (RFS World) and they sent me the data sheet for the antenna. I attached it here for those interested. I'm guessing by the information they sent I could use it for working Satellites on the 400MHz frequency range? I just need to find an N to PL-259 Adapter.
 

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... I just need to find an N to PL-259 Adapter.

adapter????? that just creates a large impedance "lump" and defeats the entire reason for using the "N" connector.

just solder an "N" connector on your coax. ;)


i'll wait and watch for your next question about how to attach the pin. :pop:
 
Boom length is 28 inches
Driven Element is 6 1/4 inch
Reflector is 7 3/8 inch
Directors are 5 5/8 inch

Is each side of the driven element 6 /14" or is the overall length 6 1/4"? The document you posted indicated that this is a 400Mhz antenna. I don't see how that is possible if the overall length of the DE is 6 1/4".
 

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