Technical data

4-24 Service Guide 85309-90082
Service LO/IF Distribution Unit
Replaceable Parts 85309B
Table 4-11 Major 85309B Assemblies (Option 402)
Reference
Designator
Part Number Qty Description
A1 85309-60135 1 PC board, Display
A2 85309-60134 1 PC board, ALC/REG
A5 85309-60136 1 PC board, Combi
A10 0955-0791 1 Low pass filter, 30 MHz
A11 0955-2245 1 Power divider, 18 GHz, 4-way
A12 5087-7755 1 RF amplifier, 0.3 to 18 GHz (Ref Chan)
A13 5087-7755 1 RF amplifier, 0.3 to 18 GHz (Test1 Chan)
A14 85309-80026 1 IF amplifier, 0.5 to 500 MHz (Ref Chan)
A15 85309-80026 1 IF amplifier, 0.5 to 500 MHz (Test1 Chan)
A16 5076-6336 1 Diplexer (Test1 Chan)
A17 5087-7768 1 RF amplifier, 0.3 to 18 GHz (Input)
A18 85309-61601 1 Potentiometer, 5K ohm + 5PCT 1W 10-Turn Wirebound
A19 5076-6336 1 Diplexer (Ref Chan)
A22 0950-5271 1 Power supply unit
A24 5087-7755 1 RF amplifier, 0.3 to 18 GHz (Test2 Chan)
A25 5076-6336 1 Diplexer (Test2 Chan)
A26 85309-80026 1 IF amplifier, 0.5 to 500 MHz (Test2 Chan)
A27 5087-7755 1 RF amplifier, 0.3 to 18 GHz (Test3 Chan)
A28 5076-6336 1 Diplexer (Test3 Chan)
A29 85309-80026 1 IF amplifier, 0.5 to 500 MHz (Test3 Chan)
A30 85309-80024 1 RF amplifier, 10 to 1200 MHz
A31 85309-80025 1 RF amplifier, 10 to 1000 MHz
A32 85309-80022 1 Power divider, 1 GHz, 4way
A36 0955-2249 1 Filter, 100 MHz high pass (Ref Chan)
A37 0955-2249 1 Filter, 100 MHz high pass (Test2 Chan)
A38 0955-2249 1 Filter, 100 MHz high pass (Test1 Chan)
A43 85110-80015 1 Filter, 30 MHz low pass (Test1 Chan)
A44 85110-80015 1 Filter, 30 MHz low pass (Test2 Chan)
A45 85110-80015 1 Filter, 30 MHz low pass (Test3 Chan)
A46 0955-2249 1 Filter, 100 MHz high pass (Test3 Chan)
AT1 33340-67007 1 Coax, attenuator, sloped (Test2 Chan)
AT2 33340-67007 1 Coax, attenuator, sloped (Test3 Chan)
AT3 33340-67007 1 Coax, attenuator, sloped (Ref Chan)
AT4 33340-67007 1 Coax, attenuator, sloped (Test1 Chan)
AT7 0955-2530 1 Microwave attenuator, 6 GHz MAX 1W 1dB SMA (Ref Chan)
AT8 0955-2530 1 Microwave attenuator, 6 GHz MAX 1W 1dB SMA (Test2 Chan)
AT9 0955-2530 1 Microwave attenuator, 6 GHz MAX 1W 1dB SMA (Test1 Chan)
AT10 0955-1503 1 Microwave attenuator, 18 GHz MAX 2W SMA
AT11 0955-2530 1 Microwave attenuator, 6 GHz MAX 1W 1dB SMA (Test3 Chan)
B1 54574-68501 1 Fan assembly
SW1 85309-61607 1 Switch, SPDT
SW2 85309-61609 1 Switch, SP3T, rotary
SW3 - SW7 33311-60069 5 Switch, RF SPDT, 15 Vdc 18 GHz