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Click on any module name to see a photo - more info coming later
       
| Module | Rack 1 Cabling Diagram | Rack 2 Cabling Diagram | Rack 3 Cabling Diagram | Rack 4 Cabling Diagram | 
| Cabinet | CY-860/FRR-24 | CY-860/FRR-24 | CY-860/FRR-24 | CY-860/FRR-24 | 
| A | SB-142/FRR-24 Control Panel Band Switch | SB-142/FRR-24 Control Panel Band Switch | SB-142/FRR-24 Control Panel Band Switch | AM-440/FRR-24 detector AF + keyed DC out | 
| B | AM-450/FRR-24 2-4 mc RF 1st converter 1750 kc IF out | AM-450/FRR-24 2-4 mc RF 1st converter 1750 kc IF out | AM-450/FRR-24 2-4 mc RF 1st converter 1750 kc IF out | AM-440/FRR-24 detector AF + keyed DC out | 
| C | AM-451/FRR-24 4-8 mc RF 1st converter 1750 kc IF out | AM-451/FRR-24 4-8 mc RF 1st converter 1750 kc IF out | AM-451/FRR-24 4-8 mc RF 1st converter 1750 kc IF out | AM-438/FRR-24 triple diversity detector AF + keyed DC out | 
| D | AM-453/FRR-24 8-16 mc RF 1st converter 1750 kc IF out | AM-453/FRR-24 8-16 mc RF 1st converter 1750 kc IF out | AM-453/FRR-24 8-16 mc RF 1st converter 1750 kc IF out | CV-127/FRR-24 FSK converter TTY output | 
| E | AM-452/FRR-24 16-32 mc RF 1st converter 1750 kc IF out | AM-452/FRR-24 16-32 mc RF 1st converter 1750 kc IF out | AM-452/FRR-24 16-32 mc RF 1st converter 1750 kc IF out | CV-127/FRR-24 FSK converter TTY output | 
| F | CV-126/FRR-24 2nd converter 1750 kc IF in 50 kc IF output | CV-126/FRR-24 2nd converter 1750 kc IF in 50 kc IF output | CV-126/FRR-24 2nd converter 1750 kc IF in 50 kc IF output | CV-127/FRR-24 FSK converter TTY output | 
| G | AM-439/FRR-24 Monitor Detector / AF out | AM-439/FRR-24 Monitor Detector / AF out | AM-439/FRR-24 Monitor Detector / AF out | KY-62/FRR-24 TTY landline keyer | 
| H | AM-454/FRR-24 50 kc IF amp | AM-454/FRR-24 50 kc IF amp | AM-454/FRR-24 50 kc IF amp | KY-62/FRR-24 TTY landline keyer | 
| J | SB-138/FRR-24 Patch Panel | SB-140/FRR-24 Patch Panel | SB-169/FRR-24 Patch Panel | KY-62/FRR-24 TTY landline keyer | 
| K | F-99/FRR-24 50 kc IF filters 8 bandwidths | F-99/FRR-24 50 kc IF filters 8 bandwidths | F-99/FRR-24 50 kc IF filters 8 bandwidths | SB-143/FRR-24 Patch Panel | 
| L | Tool Box | O-131/FRR-24 Oscillator | SB-141/FRR-24 Power Distribution Panel | CM-32/FRR-24 TTY Triple Diversity Comparator / Keyer | 
| M | PP-590/FRR-24 Power Supply for Rack 1 | PP-590/FRR-24 Power Supply for Rack 2 | PP-590/FRR-24 Power Supply for Rack 3 | PP-649/FRR-24 Power Supply for Rack 4 | 
| N | PP-648/FRR-24 Power Supply for Rack 4 |