Drake DD860 Digital Demodulator

DD860 Digital Tuner Demodulator

DD860 Front and Rear Panel Views

The R.L. Drake DD860 Digital Tuner Demodulator is a professional quality, modular, digital headend component designed to provide optimum performance for VSB or QAM demodulation. It can be used for demodulating signals from CATV systems or off-air antennas.

Demodulates 8VSB, 16VSB, 64QAM or 256QAM modes from off-air or CATV sources from 54 to 858 MHz.
Two ASI outputs (BNC connectors) are provided. SPI output (LVDS output on 25 pin connector) is available on special order.
Convenient front panel channel selection for channel and demodulation mode entry.
Front panel LED signal-to-noise ratio, lock, and error indicators.
ATSC compliant demodulation and FEC decoding in VSB modes.
DVB or DigiCipher® II compliant demodulation in QAM modes.
Automatic selection of DigiCipher® II or DVB FEC decoding when in QAM modes.
IRC and HRC channel plans may be tuned by moving an internal jumper.
Wide range equalizer eliminates multipath effects.
Low phase noise tuner provides reliable operation with dense signal constellations.
An NTSC co-channel rejection filter for 8VSB modes is incorporated.
Used with the DRMM12 rack mount and PS8 power supply.

Made in the U.S.A.

You may download the owners manual in Adobe® Acrobat® format by clicking here.
If you don't have the Adobe® Acrobat® Reader, click here.

**Drake Digital DD860 Technical Specifications**
RF
Input Frequency:	54-858 MHz, Broadcast (2-69) or EIA CATV (2-134) Channels (standard, HRC, IRC)
Optimum Input Level:	-15 dBmV to +15 dBmV
Input Impedance:	75 Ohms (return loss of 6 dB minimum)
Input Channel Bandwidth:	6 MHz.
Maximum Input Power:	< -16 dBm summed over entire input range.
Input Noise Figure:	12 dB, maximum
Input AGC Range:	-20 dBmV to +30 dBmV
Demodulation
Modulation types Accepted:	8VSB, 16VSB, 64QAM, and 256QAM (according to ATSC A/53 and ITU-T J.83 Annex A and B)
Symbol Clock Frequency:	8VSB and 16VSB: 10.762 MHz.
Symbol Rates:	64QAM: 5.057 Ms/sec. 256QAM: 5.3605 Ms/sec.
Equalizer span:	-6 to +40 µSec. delays.
Outputs
Standard ASI Output Version:	ASI Serial Output according to DVB specifications via two 75 Ohm type BNC connectors. (two identical outputs).
Special Order SPI Output Version:	Parallel Output according to DVB SPI (Synchronous Parallel Interface) on a DB25 Female Connector using LVDS (Low Voltage Differential Signaling).
General
DC Power requirements:	+5 VDC @ 750 mA, +12 VDC @ 85 mA. (Drake PS8 Power Supply recommended.)
Operating Temperature Range:	0°C to +50°C Ambient temperature around case.
Mechanical Dimensions:	4.2" W x 3.5" H x 8.38" D (10.7 cm W x 8.9 cm H x 21.3 cm D).
Weight:	1 lb. 9 oz. (0.72 kg.)

Specifications, price, and availability are subject to change without notice or obligation.

R.L. Drake, LLC
230 Industrial Drive
Franklin, OH 45005
U.S.A.

Sales: 937-746-4556
Fax: 937-806-1510
Parts and Service: 937-746-6990
In Canada: 705-742-3122

DRAKE is a registered trademark of R.L. Drake, LLC.