Model 11793A

Microwave Converter

NOTE

Mixer construction varies with manufacturer, and thus, is assembled within the RF Module differently. For example, a Norsa2 mixer has a stiffener bar placed between the mixer mounting bracket and the base mounting castings. An RHG mixer has a stiffener bar placed above the mixer mounting bracket.

Attach the mixer assembly to the module base, but do not tighten the screws.

Tighten the connection to AT1, then tighten the mixer assembly screws.

Assemble U1 H F LO Amplifier and the UlMP17 Mounting Bracket. Ensure that the U1 power terminal labels are up, and that the terminals face towards switch S2.

10.Attach and secure U 1 Amplifier assembly to M P 14 module base.

11.Connect W3 to S2, port #2 (cable slots in module should be facing assembler). Insure that the radio frequency interference (RFI)shielding grommet cradles the cable in the slot with the cable access slit facing to the side.

12.Connect W 2 to S2,port #3. Ensure that the RFI Grommet is in place as described in step 11.

13.Connect W 5 to the left port of U1 Amplifier and to S1, port #4.14.Connect W 6 to the right port of U3 mixer and to S1, port #3.

15.Connect the L O input semi-rigid coax cable (W4 in Option 001 instruments; W 14 in Option 011 instruments; or W18 in Option 021 instruments) to S1, port #2. Insure that the RF grommet is in place as described in steps 11.

16.Connect W 9 to the right port of U1 and to S1, port #l.17.Attach U 2 to MPl6 module cover.

18.Solder both the orange and white/orange wires (3,93)to the U2 amplifier terminal.

19.Place filter clamp around FL1 and attach loosely to the cover.20. Connect FL 1 to U2.Tighten FLI clamp.21.Connect W 7 to U3 and FL1.22.Connect W 8 to U2 and S2,port #4.

23.Secure module cover to base. Snug the screws down finger tight, then tighten the screws, working from the center out.

24. Connect W 1 2 to AlJ1.

35