[Test-Equipment] Waveguide question

[J. Forster]

One more caution. READ the label...  there are diode and bolometer  mounts that look
a lot like transitions. You don't want one f those.

-John


Dave Brown wrote:

> Although waveguide to coax transitions are not difficult to make and
> adjust you may be better to just buy one, paticularly if you want to
> use it over the full range of your source/amplifier setup. You want an
> old HP X281A (or B) or similar. Other manufacturers did (and do) make
> them.   But the X281A is probably still fairly common. I have a couple
> here I use reasonably often.
>
> The X281A has a type N female coax connector -the B suffix will have a
> stainless type N or maybe an APC-7 or ??--- I think they were special
> order versions. So assuming you want type N then stick with an A
> suffix  if you can't establish the connector type prior to purchase.
>  I see an H281A on ebay just now- but thats for H band, not X. Beware
> the prefix!
>
> Cheers
>  Dave B, NZ