There are some extremely broadband linear amps you can find on Ebay
and such that amplify up to 1w from dc to 1ghz with 30-40db gain
which can be driven off the gen port of your monitor for extra
dynamic range. Calibration obviously goes, but when you are trying to
see the bottom of the range, an extra 30-40db can help you see the
bottom , Be aware that a pad on the output of the amp which can
handle its drive level is a must..... 6db or so should be sufficient
to maintain 50 ohm integrity.....
IFR made a high level adapter for the 1200 which hooked onto the
front of the box in the gen side of the loop for more signal range....
I also use a portable with a 6db pad as a gen signal on low power
when I need more headroom. None of this is equal to a good network
analyzer, but it gets pretty close....
Doug
KD8B
At 09:31 PM 12/19/2005, you wrote:
>---- tony dinkel <[EMAIL PROTECTED]> wrote:
> > I also think my problem with the notches is that I do not have enough
> > dynamic range on my ifr 1600 to see the bottom.
>
>I can't see the bottom on my IFR1500, so I center the sides of the
>notch that I can see on the center frequency. I figure that the
>notch is fairly symmetrical, so this should work OK.
>
>Joe
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