HP 70310A Precision Frequency Reference

The HP 70310A precision frequency reference, a 1-slot wide plug-in module for the HP 70001A mainframe, provides precision reference signals for use by HP 70000 systems and other instruments. System frequency accuracy is enhanced because the 10 MHz and 100 MHz reference signals provided by the HP 70310A are phase-locked to an internal ovenized oscillator, resulting in excellent stability over both time and temperature. With a highly accurate and stable reference in your system, you can find signals more quickly by tuning to very narrow spans. Option 002 deletes the ovenized oscillator and the accessory power pack from the HP 70310A, but retains the external reference input capability. This is a good low cost solution if you plan to connect a house standard or other external reference permanently to your HP 70000 modular spectrum analyzer.

[ Features ]

Precision 10 MHz and 100 MHz reference signals for use by HP 70000 systems and other instruments
Improves reference aging rate, frequency accuracy, and measurement speed

[ Specifications ]

General Characteristics

Frequency Reference Accuracy Aging:
                                <5 x 10^-10/day (7-day average)
                                <1 x 10^-7/year
Temperature Stability:          <7 x 10^-10 over 0° to 55 °C

Warm-up Time:                   <96 hours to meet aging rate specification after
                                <24-hour off period
                                <30 days to meet aging rate specification after
                                indefinite off period
                                <30 minutes to be within 1 x 10^-8 of
                                24-hour warm-up frequency (at 25 °C)
100 MHz Output
Power:                          0 dBm (characteristic)

10 MHz Output
Power:                          0 dBm (characteristic)
Harmonics:                      <-20 dBc
Spurious:                       <-80 dBc

External Reference Input
Input Power Range:              -5 to +21 dBm
Impedance:                      50 ohms (characteristic)

Input signal characteristics required to meet HP 71100C, 71200C, 
and 71210C system specifications (10 MHz input)

	Offset                  Phase noise            Spurious
	--------------------------------------------------------
        10 Hz                   <-95 dBc/Hz           <-135 dBc
        100 Hz                  <-125 dBc/Hz          <-135 dBc
        1 kHz                   <-145 dBc/Hz          <-125 dBc

HP 70000 spectrum analyzer frequency accuracy (0° to 55 °C)

                                With HP 70310A         Without HP 70310A
	-----------------------------------------------------------------
        At 1 GHz Span
 	     No Aging           ±17 Hz                 ±10 kHz
	     After 1 yr Aging   ±117 Hz                ±13 kHz
	
The accessory power pack included with the HP 70310A supplies dc power to
the module to maintain oven temperature when the mainframe is turned off.
The power pack mounts to the rear of the mainframe and may be operated
using ac power with the following characteristics: 47 to 444 Hz and 100,
120, or 240 Vac.

Weight:                         3.0 kg (6.6 lb) characteristic
Dimensions:                     1-slot module

[ Ordering ]

HP 70310A Precision Frequency Reference Opt 002 Delete Ovenized Oscillator Opt 1BN Certificate of Calibration Opt 1BP Certificate of Calibration and Data Opt 910 Extra Installation and Verification Manual (HP 70310-90059) Opt W30 3 Year Return Repair Service Opt W32 3 Year Calibration Customer Return Service Opt W34 3 Year Standards Compliant Calibration Service Opt W50 5 Year Return Repair Service Opt W52 5 Year Customer Return Calibration Service Opt W54 5 Year Standards Compliant Calibration Service The HP 70310A is standard in the spectrum analyzers, lightwave signal analyzers, and GSM testers. It also can be ordered separately for any modular measurement system. šIf this module will be installed into an existing system, a firmware upgrade may be required. Modules with firmware version B.04.02 (920325) and earlier require upgrade HP 70860A. Modules with later version firmware may use upgrade HP 70861A. For more information see service note 70900A-14L / 70900B-01G.

All orders include the following:
When ordered separately, the HP 70310A is shipped with a set of cables that allow it to be connected to virtually any system. Cables shipped include a 3/8 span SMB, a 7/8 span SMB, and a 1.2 meter BNC to SMB cable.

[ Key Literature ]

No literature is available online at this time.

[ Assistance ]
Additional help is a click away!

Want to talk to a knowledgeable engineer about this product at our HP Test and Measurement Call Center? Do you have a question you want to send in by e-mail? A measurement set-up you need to fax in? Follow the link above and you will be given a choice to contact an engineer by telephone, e-mail or fax.

This service is available only in the United States. For assistance outside the U.S., contact your local HP DIRECT or HP Sales Office.

[ Related ]

Related product families available online:

MMS Accessories

HP 70310A Precision Frequency Reference

General Characteristics

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Contact HP Test & Measurement. (c) Copyright 1994 - 1998 Hewlett-Packard Company.
Page Updated: Thursday February 18 08:03:47 UTC 1999

HP 70310A Precision Frequency Reference

General Characteristics

[Hewlett-Packard] [HP Test & Measurement] [Product Information] [Model Number Index]

Privacy Statement Use of this site indicates that you accept the Terms of Use

Contact HP Test & Measurement. (c) Copyright 1994 - 1998 Hewlett-Packard Company. Page Updated: Thursday February 18 08:03:47 UTC 1999

Contact HP Test & Measurement. (c) Copyright 1994 - 1998 Hewlett-Packard Company.
Page Updated: Thursday February 18 08:03:47 UTC 1999