On 05/04/2015 20:30, Capitol wrote:

Does anyone have any experience of these? The plots I've seen seem
to have very variable gain/frequency responses.

BTW you might want to pose this question in s.e.design where there are
some folk who do RF & UHF stuff. Although specify the centre frequency
and bandwidth you want to obtain if you don't want to be flamed.

They are more than a little intolerant of ill specified problems.

--
Regards,
Martin Brown