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RF synthesizer suggestions

Seeking suggestions for a computer-controllable (GPIB or other) RF synthesizer that works to 500MHz or higher and that's not too large (rules out old HP rack-mounts) and not too expensive (used on eBay?). For example, the old Wavetek 3000 and 3001 aren't too big, have nice bat-handle thumbswitches, but they're not easily computer controllable.

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 Thanks,
    - Win

 (email: use hill_at_rowland-dotties-org for now)
Reply to
Winfield Hill
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Marconi 2022 or an older model Marconi. I can't find my old Marconi catalog for the 80's model Marconi number I'm looking for. I don't believe HP ever did a small signal generator. Another avenue would be a Comms test set.

Andrew

Reply to
Andrew Tweddle

You could build one of these

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and run it from a PC printer port, but it doesn't do much right out of the box. No lower-end coverage unless you mix it with a fixed source; no output attenuator; no modulation capability. Noise performance is not competitive with the better HP synthesizers (although it will clean an

8656A's clock, no pun intended).

What lower frequency limit, noise specs, and modulation options are you hoping for?

-- jm

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Reply to
John Miles

Computer controllable by GPIB, etc?

--
 Thanks,
    - Win

 (email: use hill_at_rowland-dotties-org for now)
Reply to
Winfield Hill

Win, Why not get one of the Analog Devices DDS evaluation boards and put it in a box with power supply, etc.?

Reply to
<pegdavez

It was an option on this series of models.

Reply to
Andrew Tweddle

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