HP 70427A Microwave Downconverter Module

The HP 70427A microwave downconverter module translates microwave signals to RF frequencies for use with the HP 3048A phase noise measurement system. The HP 70427A provides state-of-the-art noise floor performance for microwave phase noise measurements. In addition, it provides specified spurious performance and a dc-coupled tuning port with variable sensitivity for phase locking to your microwave source. The HP 70427A microwave downconverter module is a component of the HP 71707A, which also includes and HP 70004A color display/mainframe.

[ Features ]

Low noise microwave downconverter for phase noise measurements
AM noise detection

[ Specifications ]

General Specifications
Frequency Range: 			1.5 GHz to 26.5 GHz
Input Power:				-40 dBm min, +30 dBm max
IF Output Frequency Range:		5 MHz to 1200 MHz
Level:					0 to +5 dBm
Local Oscillator Frequency Range:	2.4 GHz to 25.8 GHz
Frequency Resolution:			600 MHz


Spectral Purity Specifications
Phase noise performance varies with tuning sensitivity.  The following 
table shows the combined phase noise performance of the HP 71707A 
(set-up with 0.05 ppm tuning sensitivity) using an HP 8662A synthesized 
signal generator as an RF reference source to the HP 3048A phase noise 
measurement system.  All values are in units of dBc/Hz.
	
	Input Frequency
								
	   1.5 to 3.0 GHz			Typ.		Spec.	
	      	Offset from carrier (Hz)  
			10: 			-80		-73
			100:			-100		-92
			1k:			-119		-112
			10k:			-130		-124		
			100k:			-130		-124
			1M:			-135		-130
			10M:			-147		-142
							
	   3.0 to 4.2 GHz			Typ.		Spec.
	      	Offset from carrier (Hz)  
			10: 			-77		-72
			100:			-97		-92
			1k:			-122		-115
			10k:			-133		-128		
			100k:			-136		-131
			1M:			-141		-136
			10M:			-149		-144

	   4.2 to 6.0 GHz			Typ.		Spec.
	      	Offset from carrier (Hz)  
			10: 			-74		-69
			100:			-94		-89
			1k:			-120		-114
			10k:			-131		-126		
			100k:			-136		-131
			1M:			-141		-136
			10M:			-148		-143
	  
    	  6.0 to 7.8 GHz			Typ.		Spec.
	      	Offset from carrier (Hz)  
			10: 			-72		-67
			100:			-92		-87
			1k:			-119		-113
			10k:			-130		-125		
			100k:			-136		-131
			1M:			-140		-135
			10M:			-147		-142

    	  7.8 to 10.2 GHz			Typ.		Spec.
	      	Offset from carrier (Hz)  
			10: 			-70		-65
			100:			-90		-85
			1k:			-118		-112
			10k:			-129		-124		
			100k:			-135		-130
			1M:			-139		-134
			10M:			-145		-140

    	  10.2 to 12.6 GHz			Typ.		Spec.
	      	Offset from carrier (Hz)  
			10: 			-68		-63
			100:			-88		-83
			1k:			-116		-111
			10k:			-128		-123		
			100k:			-134		-129
			1M:			-138		-133
			10M:			-143		-138

    	  12.6 to 18.0 GHz			Typ.		Spec.
	      	Offset from carrier (Hz)  
			10: 			-65		-60
			100:			-85		-80
			1k:			-113		-108
			10k:			-125		-120		
			100k:			-133		-128
			1M:			-137		-132
			10M:			-140		-135

    	  18.0 to 26.5 GHz			Typ.				      					
		Offset from carrier (Hz)  
			10: 			-62										
			100:			-82		
			1k:			-110
			10k:			-122		
			100k:			-128
			1M:			-133
			10M:			-136

Supplemental Specifications
Tuning Sensitivity:			0.05 ppm/volt, 1 ppm/volt, 20 ppm/volt
Tuning Port Voltage Range:		ą5 volts
Tuning Port Input Impedance:		2k ohm


Miscellaneous Specifications
Environmental Temperature:		operational, 0° to +550°C; 
					storage, -400° to + 750°C
Humidity:				operational 0 to 95% relative humidity at 450°C
Calibration Interval:			one year recommended
Size:					4-slot width

[ Ordering ]

HP 70427A Microwave Downconverter Module Requires either the HP 70001A mainframe or 70004A display. (The HP 70427A can also be ordered an an HP 71707A microwave downconverter, in which case the HP 70004A display is included).

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