Telex Operating Instructions SR-50 Single Channel Receiver
SPECIFICATIONS SR-50 Single Channel Receiver Temperature Range . . . . . . . . . . . . . . . . . . 0 to +50 degrees C Supply Voltage . . . . . . . . . . . . . . . . . 2-3 Volts, (2) AA Batteries Quiescent Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA Available Frequencies . . . . . . . . . . . . Refer to Frequency Chart Sensitivity (12 dB SINAD @ 25 kHZ Deviation) . . . . . . . . . . . . 0.5µ V typical/1µ V maximum Adjacent Channel Rejection ± 200 kHz . . . . . . . . . . . . . . . .
OPERATING FEATURES Volume OFF/ON Control This thumbwheel control serves as both an off/on switch and as a volume control. The Receiver is turned off when the control is in the extreme counterclockwise position, when viewed from the rear, and the volume is loudest when the control is in the extreme clockwise position as indicated on the volume control. Headphone Jack The headphone jack accepts a 0.140-inch (3.5 mm) diameter miniature mono or stereo phone plug.
OPERATION General The Telex SR-50 single channel receiver operates on 17 factory preset channels in the 72 to 76 MHz frequency band and is designed to operate with the Telex TW-6, AAT-2, PST-16, ST-200, PST-170, and ST-300 transmitters. To operate the SR-50 Receiver: 1. Select a suitable location for the receiver, and try to keep a clear, unobstructed path between the transmitter and the receiver antenna for clear reception. 2. Plug the earphone into the receiver jack. 3.
BATTERY REPLACEMENT BELT CLIP BATTERY ORIENTATION BATTERY COMPARTMENT COVER The SR-50 Receiver uses two (2) AA batteries. When the batteries are low, the sound will be distorted. Replace weak batteries with two fresh AA batteries, and position them in the battery compartment as illustrated. The life of rechargeable nickel-cadmium batteries is 6 to 8 hours, and life of replaceable alkaline batteries is approximately three times as long.
FREQUENCY CHART SR-50 FREQUENCIES DASH No. CHANNEL FREQ. in MHz -031 A 72.100 -032 B 72.200 -033 C 72.300 -034 D 72.400 -035 E 72.500 -036 F 72.600 -037 G 72.700 -038 H 72.800 -039 I 72.900 -040 J 75.500 -041 K 75.600 -042 L 75.700 -043 M 75.800 -044 N 75.900 -045 O 74.700 -046 P 75.300 -047 Q 75.
FCC INFORMATION TO THE USER The Telex Model SR-50 is authorized under Part 15 of the Federal Communication’s rules. Any changes or modifications made to this receiver could void the user’s authority to operate the equipment. OPTIONAL ACCESSORIES Description Earphone (single) . . . . . . . . . Earphone (dual) . . . . . . . . . . Lightweight Headphone. . . . . Full Cushion Headphone. . . . Button Receiver and 30" cord NL-4 Induction Coil Neckloop . . . . . . . . . . . . . . . . . . . . . . . . -6- . .
WARRANTY INFORMATION FILL OUT AND RETAIN THIS PORTION FOR YOUR RECORDS Model(s) _________________________ Serial No(s).: ____________________ Date of Purchase __________________________________________________ Purchased From___________________________________________________ Address _________________________________________________________ City _______________________ State _____________ Zip _______________ LIMITED WARRANTY (VALID UNITED STATES AND CANADA ONLY) TELEX Communications, Inc.
" Model No(s).:______________________________ Serial No(s).
R TELEX COMMUNICATIONS, INC. 12000 Portland Ave. So., Burnsville MN 55337 U.S.A. PN 804054 June 2004 Made in U.S.A.
