QMOD-HD HDTV Modulator

Specifications

Physical

8.5” [216mm] wide x 1.73” [62mm] height (1RU) x 6.0” [153mm] deep
1.5 lbs [0.68kg]
+32° to 122° F operating temperature, convection cooled
Rack mounting for one or two units side-by-side optional (RK1, RK2)

Front Panel

Power button
Select and directional buttons for menu setup
Menu LCD, 2 lines of 20 blue characters each

Encoding

MPEG2 Profile:MP@HL for HD, MP@ML for SD
1080i, 720p, 480p, and 480i resolution, depending on input
Video Encoding bitrate 18 or 25 Mbps
MPEG1, Layer 2 audio
Latency 240 ms including tuner spool-up, 720p/1080i, may vary slighty depending on tuner

Modulation

Switchable 64/256 QAM, J83 Annex B, Interleaving Modes (128,1)
MER 38 dB typical

RF Output

Agile, channels 2-135 (48-860 MHz), standard, HRC, or IRC spacing
6 MHz bandwidth fits any open channel without interference to adjacent channels
1 KHz resolution, +/- 30 ppm accuracy, +/- 35 ppm stability
29 dBmV typical output power, attenuated in 5 steps, approx 4 dB

Compliance

FCC Class B, ROHS, meets California standards

Rear Panel

Courtesy Altima Corp (download free Visio Stencil on home page)

Power: 2.1mm coaxial jack (inside center conductor positive)
0.7 A maximum, 11.5 to 13.5 VDC, 12 VDC typical

RS-232: DB-9 male, RS-232 data link to control system
300 to 19,200 baud (9600 default), 8 data bits, no parity, 1 stop bit

Video Inputs:

RGB: RGBHV DB-15 female (1080i/720p/480p/480i)
Component: RCA Pr, Pb, Y (1080i/720p/480p/480i)
S-Video: Y(Composite), C (Blue Pb) 480i, 29.97 Hz
Composite : RCA female (480i)

Audio Inputs:

Digital Audio SPDIF: Coax and TOSlink optical output, 48K bit PCM
Audio L and R: 2 stereo RCA female jacks
Audio Inputs assignable to video inputs

RF Out: ‘F’, female, 75 ohm impedance

Includes

PS12-1 Switching power supply, 1A 12 VDC, compact enclosure fits into power strips

Options

PS12-4Y 4-Way Power with PS12-4 4A Power Supply. You can use this option when ordering. Add to groups of 2-4 QMODs, no extra cost

RK2EZ - Mount 2 QMOD units independently, without removing covers
RK1 Single Rack Kit - Long and short rack ears to mount one unit
RK2 Dual Rack Kit- Mount 2 QMOD units, removing covers to combine both into one assembly
CC-COM RS-232 Cable

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