232-STA Stereo TV Tuner

Specifications

Physical

Size: 8.5" [216mm] wide x 1.75" [38mm] height (1RU) x 6.0" [153mm] deep
Weight: 1.5 lbs [0.68kg]
Enclosure: All aluminum with durable black powder coat paint
Mounting: Rack mounting for one or two units side-by-side optional (RK1, RK2)

Front Panel

Mute A/V: Mutes audio and video
Mute LED: Red LED lights when A/V is muted (blanks video)
Volume: Up and down buttons raise and lower volume
Channel: Up and down buttons select channels from stored tuning ring
Display: Red LED 3 digit, 7 segment LED display for channels and modes

Rear Panel

Power In: 2.1mm coaxial jack (inside center conductor positive), 400 mA maximum, 11.5 to 16.5 VDC, 12 VDC typical (may be unregulated)
RS-232 Control: DB-9 male connector, User selectable 300 to 9600 (default) baud, 8 data bits, no parity, 1 stop bit,
Employs standard ASCII strings from any terminal program, PC, or control system
Contact Closures: 2 momentary closure inputs in RS-232 connection- Channel Up (Pin 4), Down (Pin 9), GND (Pin 5)
IR In: 3.5 mm stereo input for external IR sensor or wired IR (no carrier)
Discrete codes available for power, TV channel and external AV selection
GND: Grounding lug
Antenna/Cable: 'F', female, 75 ohm impedance
Video Input: RCA female, NTSC composite
Audio Inputs: 2 RCA female stereo unbalanced, 20K ohms impedance
Maximum Level: +8dBu, (2V RMS), Reference: 0 dBu = .775 V RMS
Video Output: RCA composite output, 1V p-p at 75 ohm impedance
Audio Output: 2 RCA female, stereo 1K ohms, unbalanced, 1K ohm impedance
Selectable for stereo, mono and SAP modes
Stereo Response: Total Harmonic Distortion (THD): 1% maximum, 0.3% typical
Channel Separation: 25dB minimum, 30dB typical, 50Hz to 12KHz
Mono Response: Total Harmonic Distortion (THD) 0.5%, 0.1% typical, 20Hz to 20KHz
Output Level: 500mV RMS typical output level (at max volume)t
Volume Control: 0 to -70 dB and mute in 64 steps

RF Tuner

Frequency Range: NTSC television 55.25 to 801.25 MHz, 62.5KHZ fine tune resolution
Maximum Input: +20dBmV max, +10dBmV nominal*
Video Gain: ±5% maximum, 2% typical
Video Phase: ±3 degrees maximum, 2 degrees typical

*All tuners with firmware V3.7 to V4.1 made between Apr and Nov 2005 should be upgraded to new V4.3 (or higher) to ensure higher RF input level specs and best video performance.

Software

Tuner Helper .NET software simplifies tuner setup and acts as PC control panel
Downloadable S12 Flash software updates firmware via PC RS-232 port

Includes

Space-saving 12 VDC 500 mA digital switching power supply (North American shipments only)

Options

CC-232 RS-232 Cable
RK1 Kit for mounting single unit in 19" rack
RK2 Kit for mounting two units side-by-side in 19" rack

© 2008 Contemporary Research Corporation. All rights reserved.