The Z10050A is a 3dB hybrid coupler, to be used to split a signal into
two paths (to connect two receivers to one antenna, for example) or to
combine two signals into one (two signal generators combined for
intermodulation testing, most commonly).
I decided not to make the Z10050A a full kit because it's too labor intensive
for me, particularly if bought assembled.
There's still interest in an inexpensive 3-dB hybrid coupler, so I've decided
to make the hard to find parts available as a "parts only" kit. These include
all the electronic parts needed to make the coupler. The builder is
responsible for an enclosure and three connectors of choice.
The kit does not include a printed circuit board because it's simple
enough not to need one and in fact the coupler has a bit better port-to-port
isolation when built with the parts hanging in air.
Photos of customer builds are at the bottom of this page.
I've written an 8-page "Notes on Building the Z10050A" manual for the parts
kit, with illustrations on how to build a coupler with the parts, as well as
measurements on a sample coupler. Click
here to read the
manual. The Z10050A is quite a decent performer, as good as a similar
Mini-Circuits coupler in my measurements.
The Z10050A parts kit is $5.00 for one, $9.00 for two. This price
includes first class postage within the USA. DX prices are $6.00 for one, $10.00
for two which includes first class (air) postage.
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