Section III. RADIO FREQUENCY DISTRIBUTION DETAILED THEORY

TM 32-5895-227-14&P

Section III. RADIO FREQUENCY DISTRIBUTION DETAILED THEORY

on Patch Panels SB-2235/GR No. 2 through No. 7 can

6-12 GENERAL.

Radio frequency (RF) energy

be patched to line output positions 1 through 33 on SB-

induced in Antenna Sets AS-341/GR is coupled by

2235/GR No. 8, No. 9, and No. 10.

antenna transmission lines to Connector Assembly MX-

7141/M. An RF system may include external antenna

sets, Connector Assembly MX-7141/M, RF Patch Panels

6-15 ANTENNA COUPLER CU-872A/U. See figures

SB-2235/G, Antenna Couplers CU-872A/U, and Radio

2-1 and 6-9. Antenna couplers No. 1 through 6 are

Receiver R-390A/URR.

directly coupled to RF Patch Panels SB-2235/GR No. 2

through 7. RF cables CG-1044/U, CG-1046/U, CG-

1048/U, CG1050/U, CG-1052/U, and CG-1054/U are

6-13 CONNECTOR ASSEMBLY MX-7141/M. This

used for direct patching from coupler output to RF patch

position provides a common entry and access point for

panels.

RF cables CG-1045/U, CG-1047/U, CG-

all information signals employed in the AN/MSQ-71

1049/U, CG-1051/U, CG-1053/U, and CG-1055/U are

system. There are 44 UG-570/U RF connectors on this

the SB-2235/GR output cables to the coupler inputs.

panel. Antenna 1 through antenna 11 input positions

See NAVSHIPS 94490 for a detailed theory of operation

and line 2 through line 33 output positions are shown in

of Antenna Coupler CU872A/U.

figures 2-1, 6-3, and 6-9. Antenna input cables from the

feedthrough to RF patch panels are CG-(1000)/U

6-16 RECEIVER INPUT, R-390/URR. See figures 2-1

through CG-(1010)/U. Line output cables from RF patch

and 6-9. The RF Patch Panel SB-2235/GR, positions 36

panels to the feedthrough are CG-(1011)U through CG-

through 42, is directly interconnected by cables CG-

(l 043)/U.

1056/U through CG-1062/U to Radio Receiver R-

390A/URR and the RFP position.

6-14 RADIO FREQUENCY PATCH PANELS SB-2235/

GR. Radio frequency patching of SB-2235/GR No. 1

(figures 2-1 and 6-9) consists of 11 RF inputs which can

be patched to SB-2235/GR No. 2 to No. 7 inputs and to

receiver position inputs No. 36 through 42 on SB-

2235/GR No. I11. Antenna coupler outputs 1 through 8

6-12