artie wrote:

The Bird is a wonderful, stable design that's simple and well
understood. You can get fancier (from Bird, among others), you can get
more accurate (my old HP), but it's hard to get simpler.

I use a homebrew directional coupler (see QEX for
March 1995) for everyday use, and a brand new,
well preserved (in a closet) Bird 43 as a
reference instrument. At full scale it is specifed
as accurate within +/- 0.5 db, which is plenty
good enough for me.

Bill W0IYH

"William E. Sabin" sabinw@mwci-news wrote in message ...
artie wrote:

The Bird is a wonderful, stable design that's simple and well
understood. You can get fancier (from Bird, among others), you can get
more accurate (my old HP), but it's hard to get simpler.

I use a homebrew directional coupler (see QEX for
March 1995) for everyday use, and a brand new,
well preserved (in a closet) Bird 43 as a
reference instrument. At full scale it is specifed
as accurate within +/- 0.5 db, which is plenty
good enough for me.

Bill W0IYH

Why would a ham operator have a need for such accuracy ?
Isn't consistency enough ? For ensurance of not exceeding
the power output for those who want to equal the max then
a scope would be the way to go. For those that build then
there is a need for accuracy and bragging rights are fully
earned. Seems like this falls into the same catagory of
'I have six elements where you have only five'
Art

Why would a ham operator have a need for such accuracy ?
Isn't consistency enough ? For ensurance of not exceeding
the power output for those who want to equal the max then
a scope would be the way to go. For those that build then
there is a need for accuracy and bragging rights are fully
earned. Seems like this falls into the same catagory of
'I have six elements where you have only five'
Art

'need' is maybe too strong a word, but in general, i'll buy a more precise
meter if i can afford it, rather than a less precise one. your tools are
your eyes. if you can't measure it, you can't improve it.

bird owner

isn't the power rule about input?
sam

--
toys:
diesel BMW motorcycle, homebuilt electric motorcycle, gold wing trike, honda
gyros, dodge diesel dualie, fiat osca 1500 cabriolet,
W3CYO/R, 145.49, 224.40, 443.300 mhz. repeaters.


"Art Unwin KB9MZ" wrote in message
m...
"William E. Sabin" sabinw@mwci-news wrote in message
...
artie wrote:

The Bird is a wonderful, stable design that's simple and well
understood. You can get fancier (from Bird, among others), you can
get
more accurate (my old HP), but it's hard to get simpler.

I use a homebrew directional coupler (see QEX for
March 1995) for everyday use, and a brand new,
well preserved (in a closet) Bird 43 as a
reference instrument. At full scale it is specifed
as accurate within +/- 0.5 db, which is plenty
good enough for me.

Bill W0IYH

Why would a ham operator have a need for such accuracy ?
Isn't consistency enough ? For ensurance of not exceeding
the power output for those who want to equal the max then
a scope would be the way to go. For those that build then
there is a need for accuracy and bragging rights are fully
earned. Seems like this falls into the same catagory of
'I have six elements where you have only five'
Art

Bill:

Your March 1995 QEX article says that you prepared an accompanying
construction article for QST. I haven't been able to find it in '95,
96 or '97 QST editions. Was it published? If so, when?

Jack K8ZOA

Jack Smith wrote:

Bill:

Your March 1995 QEX article says that you prepared an accompanying
construction article for QST. I haven't been able to find it in '95,
96 or '97 QST editions. Was it published? If so, when?

Jack K8ZOA



I did not write a construction article, but QEX
for May 1995 has an article on the design of the
transformers for the directional coupler. Actual
construction articles have been described in ARRL
Handbook and Antenna Book editions.

Bill W0IYH

On Tue, 16 Sep 2003 06:38:21 -0500, "William E. Sabin"
sabinw@mwci-news wrote:

Jack Smith wrote:

Bill:

Your March 1995 QEX article says that you prepared an accompanying
construction article for QST. I haven't been able to find it in '95,
96 or '97 QST editions. Was it published? If so, when?

Jack K8ZOA



I did not write a construction article, but QEX
for May 1995 has an article on the design of the
transformers for the directional coupler. Actual
construction articles have been described in ARRL
Handbook and Antenna Book editions.

Bill W0IYH


Found it. As usual, an excellent piece of work!

Jack K8ZOA