The DM-100 is the perfect demodulator for utility
applications in cable TV, industrial TV headends, trucks,
presentation rooms, and more. A solid member of the
Videotek demodulator family, the DM-100 has all the
features demanded for basic demodulator applications.
The DM-100 accepts either Antenna or Cable TV RF
inputs, and outputs both video and balanced BTSC
stereo audio. The compact size of this unique product
allows up to three DM-100 demodulators to be mounted
side by side in only one rack unit of space... perfect
where rackspace is a premium. The DM-100 has the
special features needed for cable TV operation, such
as a clear and positive front panel indication of unit
operation and channel selected. A back panel switch
allows for locking the DM-100 to all selected functions,
including channel tuning, video and audio level, and
stereo balance. Other functions include selection of
channel fine tuning offsets and forced HRC tuning.
Features
• Compact size - three demodulators in 1 RU
• Easy system power - 12 VDC operation,
AC adapter included
Multi unit and – 48 VDC power units available
• Front panel lock - set and forget
• BTSC Stereo decoder
• Clear front panel indication of channel selection
- confirm operation at a glance
• Standards available: NTSC, PAL-M and NTSC-J
MODEL
www.amt.com www.amt.com
MODEL
DM-100
UTILITY DEMODULATOR
Tuner
Tuning Range 55.25 to 801.25 MHz
Connector 75q “F”, female
Input range –15 to +15 dBmV
Maximum Input Level +30 dBmV
Channel Coverage VHF Channels 2-13
UHF Channels 14-69
Cable Channels 2-99
Band Coverage Low, Mid, High, Super, UHF
Detector Synchronous
Video
Video output NTSC video output, sync negative
75q source terminated
Connector 75q BNC, female
Level 1V p-p, nominal into 75q load
Adjustment Range ±1.5 dB
Audio
Audio Line Outputs Balanced stereo (left and right)
Connector 2-piece terminal strip
Level 0 dBm, nominal
Adjustment Range –16 dBm to +4 dBm
Audio Monitoring Miniature stereo headphone jack,
front panel, 32q
Power
Input 12 VDC
120 VAC adapter included
Consumption 15 VA
Connection Locking, center positive
Environmental
Operating Temperature 0° to 50°C
Storage Temperature –40° to 75°C
Humidity 90% maximum
Mechanical Dimensions
Height 1.74” (4.4 cm)
Width 5.25” (13.3 cm)
Depth 9.9” (25.2 cm)
Weight 2.4 lb (1.1 kg) including AC adapter
Standard Accessories Operation & Service Manual
90-264 VAC 50/60 Hz adapter
Options
DM-100X DM-100 without external power supply.
Requires 12 VDC input or PS-120 or PS-48.
PS-120 (not shown) Multiple Unit power supply.
Will power up to 5 DM-100 units.
Includes five power cables.
94-264 VAC 50/60 Hz input.
1/3 RU; can be mounted in dat-1
rackmount frame.
PS-48 (not shown) –48 VDC power supply. Will power up to
5 DM-100 units. Includes five power cables.
1/3 RU; can be mounted in DAT-1
rackmount frame.
DAT-1 Rackmount frame. Accommodates any 3
Videotek self-contained modular units,
including video and audio distribution
and switching.
DM-100J Changes the tuning frequency and channels
plans for Standard M, Japan.
Advanced Media Technologies, Inc. • 720 South Powerline Road, Suite G, Deerfield Beach, FL 33442
(888) 293-5856 • (954) 427-5711 • Fax (954) 427-9688
DM-100 Utility Demodulator Specifications
33442
www.amt.com