On Mon, 16 Nov 1998 09:15:00 -0800 w6frmarv@juno.com (marv gonsior)
writes:
>
>Hello All,
>
>Re the "I.C.E. filter spec of -80dB," I made measurements, using the
>HP141T/8443A, on their early production and, unless they have
>dramatically improved their design, the so-called -80dB was only
>realized on *one* narrow band of frequencies. It consisted of a very
>tight notch, at the TV IF frequency, with considerably less
>attenuation at all other frequencies plus an unacceptable insertion
>loss at 29mHz. In short, caveat emptor! Or, as the saying goes, you
>know.........the one about
>free beer!
>
>73,
>
>Marv, W6FR
I had a similar experience early on Marv. Burnt up 2 filters ( ICE 421)
on 10M. Both were replaced with a note saying they had production
problems. No more smoke in several years.
73 Carl KM1H
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