Chapter 4 93
Troubleshooting the RF Section (E4446A, E4447A, E4448A)
RF Section Description (E4446A, E4447A, E4448A)
Figure 4-2 RF Section Assemblies - E4446A, E4447A, E4448A
Item Description
1 J1 Input Connector, 2.4 mm
2 A14 Input Attenuator (10 dB)/Switch)
3 A15 Input Attenuator (60 dB)
4 L-bracket, RF Main
5 A18 YTO, 2.9 to 7 GHz (Yig Tuned Oscillator)
6 A19 SBTX/RYTHM Assembly
7 A20 Low Band Assembly
8 FL1 Low Pass Filter, 3 GHz
9 A21 FELOMA (Frequency Extended LO Multiplying Amplifier)
10 FL2 Band Pass Filter, 3.9214 GHz
11 A22 Preamp Assembly (Option 1DS)
12 A27 Electronic Attenuator (Option B7J)
13 A30 FIFA, First IF Amplifier Assembly
14 A29 SBTX Driver Board
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