Output current — +1 milliampere into a 3000-ohm load. 
Stability — Less than 0.25 percent of full-scale drift per hour after warmup. 
3.2.4 Spare ON-OFF Channel 
Control — Contact closure in model. 
Output — Relay contacts in console. 
Contacts — Single pole — double throw rated at 1 ampere at 24 volts d.c. or 
115 volts a.c. 
Operate time — 0.1 second maximum. 
3.3 RADIO LINKS 
3.3.1 Transmitters 
Type — Crystal-controlled, phase-modulated 
Frequency range — 215-235 mc 
Power output — 4.5 watts maximum. 
3.3.2 Receivers 
Type — Crystal-controlled, double-conversion superheterodyne 
Frequency range — 215—235 mc 
Sensitivity — 8 microvolts signal produces 20 db quieting. 
Antennas — Omnidirectional, ground plane. 
3.4 SIZES AND WEIGHTS OF MODEL EQUIPMENT 
The following tables show the actual weight of complete typical systems and the 
sizes and weights of individual components and cables. 
1-8 
