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Summary of Contents for HP 423B
- Page 1 MANUAL SERVICE OPERATING HP 423B HP 8470B CRYSTAL DETECTOR HP Part No. 00423-90103 Editioni E0279 +{ewlett-Packard co., 1975, 1977, 1979...
- Page 2 14. Mating Connectors 15. The mating RF input connectors used with the 6. Description 423B and the 8470B Option 012 must be Type N female connectors which comply with U.S. military Hewlett-Packard Model 423B 8470B standard MIL-C-39012.
- Page 3 +25 C unless otherwise noted. 423B: 63 mm long, 20 mm diameter (2.47 in. long, 2Measurement made at —20 dBm. 0.78 in. diameter). 3Sensitivity decrease€with increasing temperature. typically: 0.5 dB from —'200C to +250C•.0.5 dB from +250C to +400C 8470B: 64 mm long, 19 mm diameter (2.50 in.
- Page 4 Page 4 Model 423B/8470B 20. Original Packaging. Containers and materials The power applied to the detector can be either identical to those used in factory packaging modulated or continuous wave (CW). If modulated available through Hewlett-Packard offices. If the at a 1000 Hz rate, an SW R meter...
- Page 5 34. Low Level Sensitivity Test ments (see HP Application Note Index for further information). Using a signal source (covering 100 MHz to 2 GHz), a 10 dB attenuator, and a power meter, connect attenuator to signal source and power sen-...
- Page 6 SERVICE CAUTION 43. The succeeding paragraphs give instructions Do not rotate detector element while for repair of the Model 423B and 8470B Crystal serting or removing or damage may result. Detectors and the Option 002 Load Resistor. Additional maintenance information...
- Page 7 Page 7 Model 423B/8470B Solder resistor to new connector. Let resistor cool then check resistance from male BNC pin through resistor; resistance meas- CONTACT ured should be ± 10% that indicated by the color SPRING 0.79 mm (1/32 coding. Replace lockwasher and male BNC connector.
- Page 8 Page 10 Model 423B/8470B CENTER CONDUCTOR SUPPORT BEAD INNER CONDUCTOR CONTACT MECHANI OUTER CONDUCTOR COUPLING COUPLING SLEEVE CARE To Connect: Keep contacting surfaces smooth and clean. Irreg- ularities and foreign particles can degrade electrical On one connector, retract the coupling sleeve by performance.
- Page 9 :canl////ii/iiii/l should beequally spaced. If the contact is removed, do NOT re-useit (it may be damaged by removal). This INNER contact is Amphenol* part number 131-129and HP CONDUCTOR CONTACT 1250-0907. If this contact needs replacement and a...
- Page 10 HP. Buyer shall prepay shipping charges to HP and HP shall pay shipping charges to return the product to Buyer. However, Buyer shall pay all shipping charges, duties, and taxes for products returned to HP from another country,...
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