On Wed, Dec 20, 2006 at 10:58:02AM -0600, Jason Rabel wrote:
> Just a heads up, if you search eBay for 'Lucent RFTG' you will see someone
> has listed a bunch of the rubidium units today with BIN of $130. These are
> not the previously listed RFG's. The RFTG have the built-in GPS receiver (I
> think it's a Motorola UT+ or VP), the RFG's do not have the GPS. There's a
> pinout somewhere in the archives here, it uses +24V I think through some of
> the pins on the DB9 ports.
I think you just steered me down a blind alley...
I grabbed the last two of these at the newer higher price of
$185 BIN but more careful searching shows photos of a box without any
evident GPS antenna input.
I think the part with the GPS is the RFTG-M-XO which contains a
disciplined OXCO with optional rubidium input from the RFTG-M-RB box.
I suppose there must be a EFC voltage input or, much more
useful, a 1 PPS input that syncs the Rb. But they appear to be a pair.
I suppose that isn't too bad a price for a Rb oscillator if they
have reasonably low hours and are the long lived telco kind...
And a Rb oscillator with a PLL that expects a 1 PPS might be quite
useful at that price.
--
Dave Emery N1PRE, [EMAIL PROTECTED] DIE Consulting, Weston, Mass 02493
"An empty zombie mind with a forlorn barely readable weatherbeaten
'For Rent' sign still vainly flapping outside on the weed encrusted pole - in
celebration of what could have been, but wasn't and is not to be now either."
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