[Premium-Rx] receivers with 20Mhz IF?

[Eugene Hertz]

Ok, here's one I know you will all laugh at me on. I came across an old HP spectrum analyzer, specifically, 851B display and an 8551B RF section. For those of you fortunate to have never seen one, here's a picture. http://www.fairradio.com/hp-851b.html
It weighs about as much as my 1961 MGA. So I started thinking about what I could use this for. Asking around on the HP/Agilent list, I found out that the 851B Display takes an IF input of 20Mhz. Asking around further I discovered that I could not easily locate a more modern RF section (at say 1/10 the size) because the 20Mhz IF was abandoned by HP.
So I got ta thinkin. Are there any receivers that use 20Mhz as IF output? I thought the display section alone could make for a neat panadapter/sdu.
(Ok, you can stop laughing now!)
Eugene

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