Xref: utzoo sci.electronics:4610 rec.ham-radio:7554
Path: utzoo!attcan!uunet!wa3wbu!john
From: john@wa3wbu.UUCP (John Gayman)
Newsgroups: sci.electronics,rec.ham-radio
Subject: Re: Need 1GHz RF wattmeter
Summary: Bird ?
Keywords: wattmeter RF
Message-ID: <196@wa3wbu.UUCP>
Date: 2 Jan 89 15:02:59 GMT
References: <17960@glacier.STANFORD.EDU>
Organization: WA3WBU, Marysville,PA
Lines: 30

In article <17960@glacier.STANFORD.EDU>, jbn@glacier.STANFORD.EDU (John B. Nagle) writes:
> 
>      Where can I get a low-cost RF wattmeter good for 1.2GHz?  The power range
> required is 50mW to 5W or so at 50 ohms.  Either an inline or terminating type
> wattmeter is acceptable; an SWR capability would be nice but is not essential.
> Precision required is very modest.
> 

    Would most of your measurements be closer to 5 watts or 50 mW ?  Bird
Electronics makes a variety of elements for thier Model-43 Thruline
wattmeter covering the 23cm band.  I have three of them here that I use
for 1.2Ghz. They are: 5K (1.1-1.8 Ghz, 5W), 433-103 (1.1-1.8 Ghz, 50W),
and an old military CU-1677/URM-167 (1.0-1.8 Ghz 25W). I have also seen
some 2.4 Ghz slugs (10W & 25W) that they manufacture. And..... in my
Model-43 manual they list slugs covering 1.1-1.8 Ghz with 1W, 2.5W, 5W,
10W and 25W full scale. 

    I'll admit that Bird may not actually be the "least expensive"
wattmeter you can find. But its hard to beat its flexibility for
$170. In case your interested, Bird's number is 216-248-1200. Good
luck.

					73, John



-- 
John Gayman, WA3WBU              |           UUCP: uunet!wa3wbu!john
1869 Valley Rd.                  |           ARPA: john@wa3wbu.uu.net 
Marysville, PA 17053             |           Packet: WA3WBU @ AK3P