HP 70907B External Mixer Interface Module

The HP 70907B external mixer interface module (EMIM) is the interface needed to use the HP 11974 series preselected millimeter mixers with HP 70000 modular spectrum analyzers. The HP 70907B provides the HP 11974 mixers with a swept LO signal and a tune and span signal. The HP 11974 mixers return an IF signal to the HP 70907B, where it is converted to 21.4 MHz and output to an IF module. The HP 70907B external mixer interface module is also compatible with the HP 11970 series millimeter mixers, which extend to 110 GHz, and with millimeter mixers from other manufacturers, which extend to 325 GHz. (Other mixer series are not preselected.) An HP 70907A can be upgraded to the HP 70907B with the HP 70907A K74 upgrade kit. The kit can be installed by the customer in about one hour. The HP 70000 LO module (HP 70900A or B) must meet certain date code requirements.

Bias capability is converted to preselector peak resulting in activation of a preselector peaking with the BIAS PEAK function. Sweep times must be manually controlled in wide spans to avoid oversweeping the preselector.

[ Features ]

Provides the HP 11974 preselected mixers with a swept LO signal and a tune and span signal
Compatible with the HP 11970 series preselected millimeter mixers
Allows multiple external mixers to be selected with softkeys

[ Specifications ]

Internal 321.4 MHz Calibrator Accuracy:
				±0.6 dB at -35 dBm
Input/Output Characteristics²:	Front panel only; see module characteristics
				for more detailed information
Preselector Tune/Span
Voltage Range:			<4.5 to >9.9 V
Tuning Sensitivity:		1.5 V/GHz
Load Impedance:			>10 k ohms (nominal)
Mixer Bias
Maximum Voltage:		3.3 V (typical)
Current Range:			-2 V < V out <2 V
Range:				-10 to +10 GHz
Resolution:			<20 µA (typical)
Accuracy:			±30 µA
Source Impedance:		> M ohms (nominal)
LO Output
Frequency Range:		3.0 to 6.6 GHz
Output Power:			16 dBm ±1.5 dB
VSWR:				<=1.9:1 (typical)
Impedance:			50 ohms (nominal)
IF Input
Frequency:			321.4 MHz
Maximum Safe Input Level
ac:				<=30 dBm
dc:				±3 V
VSWR at 321.4 +5 MHz:		<=1.8:1
Impedance:			50 ohms (nominal)
General
Temperature:			0° to +55°C
Storage:			-10° to +75°C
Weight:				2.8 kg (6.2 lb)
Dimensions:			1 slot wide module

Compatibility Information

Model	     S/N	Compatibility Kit
-----------------------------------------------------------------
HP 70907A    all	HP 70907A-K74 upgrade kit required
HP 70907B    all	Fully compatible provided HP 70900A/B
			LO meets the following requirements:
			Firmware Date Code	LO Upgrade Kit
			(YYMMDD)		Required
			850730			HP 70907B Opt 098
			860203			HP 70907B Opt 098
			861015			HP 70907B Opt 099
			870501			HP 70907B Opt 099
			880314			HP 70907B Opt 099
			880901			HP 70907B Opt 099
			890606			Fully compatible

²More detailed specifications given in HP 70900B Installation and Verification
 manual.

[ Ordering ]

HP 70907B External Mixer Interface Module Opt 098 CPU and RAM/ROM Upgrade Opt 099 RAM/ROM Upgrade Opt 910 Extra User's Manual Opt 915 Service Manual Set Opt W30 Two Additional Years of Return-to-HP Warranty (3 years total) HP 70860A¹ HP 70861A¹ ¹If 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.

[ Assistance ]

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