[time-nuts] Is this a cesium frequency standard?

[Richard Parrish]

The seller of the 'Russian' equipment said that the CCHB-74 frequency
standard is a rubidium unit.  Manual is in Russian but he can translate part
of the manual into English for an additional fee.

Thanks,
Richard Parrish
Cal Center Inc
1622 Griffith Ave
Terrell, Texas 75160-4905
calcntr at swbell.net 
214-577-3515

-----Original Message-----
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of David Kirkby
Sent: Thursday, August 23, 2012 3:18 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Is this a cesium frequency standard?

There's a seller on ebay by the name of
"electro-radio-device-high-precision", which have some odd things.
Some seem as if they would be 19th century items, but are sold as "new".

http://stores.ebay.co.uk/electro-radio-device-high-precision?_trksid=p4340.l
2563

I suspect his stuff was desgned for the Russian military. Everything he
sells is described as

"analog of Lutron, Advantest, Avtech, HP Agilent, NoiseCom, General Radio,
Boonton, Anritsu, Fluke and general Electric, but  has the same or better
characteristics."

I thought this one was interesting though

http://www.ebay.co.uk/itm/5MHz-1MHz-100kHz-Frequency-standard-CCHB-74-an-g-A
gilent-HP-/330758945645?pt=LH_DefaultDomain_0&hash=item4d02c4fb6d

It has lots of knobs to twiddle, so it might be a cesium, though the specs
don't seem good enough for a cesium, with a relativa e error of
+/- 2 x 10^-11 at shipping. That seems more like a rubidium spec.

He has some bizzare stuff, like a power meter which works to 53 GHz, but has
banana plugs on it. I guess the sensor is connected to the banana plugs,
though he does not mention it needing an external sensor.

http://www.ebay.co.uk/itm/0-03GHz-53GHz-1mkWatt-10mWatt-Power-meter-M3-22-an
-g-Agilent-HP-Marconi-GenRad-/230821610924?pt=LH_DefaultDomain_0&hash=item35
be0a45ac

Some of his stuff seems very over priced, like a 400-1200 MHz sig gen with
an error of 1% for $1580, but other things seem quite reasonable.
If you need a sig gen at 70 GHz, he has them.

Anyway, its worth checking out his auctions, as he has some test equipment
which is very different from what one normally sees - and it some cases to
what one would want to see!

Dave

_______________________________________________
time-nuts mailing list -- time-nuts at febo.com To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.