The Phantom Inscribed thus:

On Thu, 04 Feb 2010 00:46:55 -0800, Fred Abse
wrote:

On Fri, 29 Jan 2010 00:08:01 -0600, The Phantom wrote:

I measured the frequency response with a 750 MHz sweep. Â*The input
signal was applied with a short length of 50 ohm coax, with a 50 ohm
feed through termination at the input BNC connector; the scope probe
was not used.

Most of the commercial 50 ohm through terminations I've measured are
pretty useless as low as 500MHz.

The one I used is behaving properly at 750 MHz. Â*It came from
Pasternack, and their claim was: VSWR: 1.2:1 MAXIMUM, DC TO 1 GHz

I would have been very surprised if it were anything else.
Even home brew ones would have to be very badly made to perform poorly
at 500Mhz. Â*His comment does cast doubt on Fred's equipment and
abilities !
--
Best Regards:
Baron.