WJC9119L/R VXI HF Tuner (Distributed Product)

The WJC9119 HF Tuner consists of an RF Converter Module (WJC9119R) and an LO Synthesizer Module (WJC9119L), each of which is housed in a single-width C-size VXI module. This tuner quickly scans the HF spectrum, accurately detects critical signals, and consistently downconverts the information you need by utilizing filter preselection with extraordinary dynamic range.

Together, the WJC9119 HF Tuner and the HP E3238S Scanning Signal Analysis System provide comprehensive coverage of the HF band from 0.1 to 32 MHz for surveillance applications. The WJC9119 also works with the HP 3587S Signal Analysis System to provide more detailed information and signal identification of hard-to-detect signals of interest.

[ Features ]

0.1 to 32 MHz frequency coverage
High spur-free dynamic range: 95 dB, typical
4 MHz bandwidth
VXI register-based control
250 kHz tuning resolution
Phase & amplitude stability between channels
HP E1430A A/D converter compatibility

[ Specifications ]

Frequency
Tuning
Frequency Range                  0.1 to 32 MHz, with degraded
                                 performance from 0.1 to 0.5 MHz

Conversion Scheme
     0.1 to 4 MHz                Direct path, no conversions 
     4 to 32 MHz                 Double conversion 

Tuning Resolution                250 kHz 

Tuning Time                      500 ľsec, max; 250 ľsec, typical


Reference

Internal Reference Stability     5 x 10 -7 (over 0 to 50 °C) 

External Reference Input/Output 
     Frequency                   10 MHz 
     Level                       0 to +3 dBm 
     Impedance                   50 Ohm 

A/D Converter Clock Output 
     Frequency                   10.24 MHz 
     Level                       ECL 

1st-LO Output 
     Frequency                   70 to 102 MHz
     Level                       0 to +3 dBm
     Impedance                   50 Ohm
     Resolution                  250 kHz 

2nd-LO Output 
     Frequency                   67.44 MHz 
     Level                       0 to +3 dBm
     Impedance                   50 Ohm 



Amplitude
Input

RF Input
     Impedance                   50 Ohm, unbalanced
     VSWR                        2.5:1 max.

RF Gain 
     Direct Path                 20dB ą2 dB 
                                 (@25° C, ą3 dB over full temp. range)
     Conversion Path 
     Without Preamplifier Engaged 8 dB ą2 dB 
                                 (@ 25° C, ą3 dB over full temp. range) 
     With Preamplifier Engaged   20 dB ą2 dB 
                                 (@ 25° C, ą3 dB over full temp. range)

RF Attenuator 
     Maximum Attenuation         47 dB 
     Resolution                  1 dB 
     Adjustment Speed            500 ľsec, max; 250 ľsec, typical 

Damage RF-input Signal Level     +30 dBm, min. 

Dynamic Range

Dynamic Range (referenced to full-scale of the A/D) 
 Spurious Free               95 dB, typical (when used in
                                 combination with HPE1430A) 

Dynamic Performance
                                             Conversion Path, Conversion Path, 
                                             preamp in,       preamp out, 
Specification                  Direct Path   no attenuation   no attenuation
3rd-order output in-band IP    33 dBm, min   33 dBm, min      33 dBm, typ.
3rd-order input out-of-band IP 20 dBm, min   20 dBm, min      35 dbm, typ.
2nd-order output in-band IP    78 dBm, min   78 dBm, min      78 dBm, typ.
2nd-order input out-of-band IP 60 dBm, typ.  60 dBm, typ.     72 dBm, typ.
Input 1-dB compression point   +2 dBm, typ.  +2 dBm, typ.     +14 dBm, typ.

Noise Figure                     15 dB, max; 13 dB, typical 

IF-Filter Shape Factor
(2 dB:95 dB)                     1.56, max. 

Analog Baseband Output
  0.1 to 4 MHz Path 
     Center Frequency  2.05 MHz 
     Bandwidth (2 dB)            3.9 MHz 
     Impedance                   50 Ohm 
  4 to 32 MHz 
     Center Frequency            2.56 MHz 
     Bandwidth (2 dB)            4.0 MHz 
     Impedance                   50 Ohm



Internal

Image Rejection                  >90 dB, min. 

IF Rejection                     >100 dB, min. 

Internally Generated Spurious    -130 dBm, typical 

Conducted LO Radiation           -100 dBm, max 

LO Phase Noise (Typical) 
     Offset  1 kHz               -125 dBc/Hz
             10 kHz              -125 dBc/Hz
             100 kHz             -130 dBc/Hz
             1 MHz               -140 dBc/Hz 

A/D Clock Phase Noise (Typical) 
     Offset  1 kHz               -130 dBc/Hz 
             10 kHz              -140 dBc/Hz 
             100 kHz             -145 dBc/Hz 



Environmental

VXI Interface 

Device Type                      Register-Based, VXI Servant 

Data Transfer Capability         A16, D16 circuitry provided 

Module Size                      C-Size 

Slots Used                       2 

Control Library                  C drivers available

Operating Temperature            0 to 50° C 

Storage Temperature              -40 to +70° C 

Humidity                         0 to 95%, noncondensing
 
Altitude                         50,000 ft (15250 meters), non-operating
                                 24,000 ft (7300 meters), operating

Shock                            Designed to MIL-STD-810D, 
                                 bench handling 

Power Consumption 
                                  Current                   Total  
  Module      +5V     -5.2V   +12V    -12V   +24V   -24V    Watts
  WJ-9119/LO  850 mA  900 mA  400 mA  15 mA  18 mA  0 mA    14.3 
  WJ-9119/RF  800 mA  5.3 mA  700 mA  30 mA  50 mA  40 mA   15.0

[ Ordering ]

WJC9119L HF Tuner (LO section). Provides local oscillator signals for up to eight WJC9119R RF sections. WJC9119R HF Tuner (RF section). Broadband 0.1 to 32 MHz VXI tuner module. Must be ordered with a WJC9119L.

[ Key Literature ]