Features
& Benefits
- Standards Supported:
- M/N (DS1001A/DS1001G)
- B/G
(DS1002)
- Tuning Range:
- 55.25 to 801.25 MHz (M/N)
- 48.25
to 860.25 MHz (B/G)
- Stereo Sound: BTSC, Dual Tone, NICAM (System
Dependent)
- Zero Carrier Pulse for Depth of Modulation Measurements
- Standard
and User-defined Channel Tables
- RF Ghost Canceling Processing (DS1001G
Only)
- RS-232/RS-485 I/O Port for Remote Control
- Simultaneous
Left and Right and SAP Audio Output Monitoring
- Remote Monitoring
of RF Input Level
- Lower Power Dissipation for Increased Efficiency
and Reliability
- Dual Video Outputs
- IF Inputs and Outputs
- Front
Panel Lock-out Feature
Applications
- Remote
Node Monitoring
- Operational Demodulation
- Broadcast Demodulation
The Tektronix
DS1000 Series Television Demodulators are the answer for cable operators,
broadcasters and manufacturers that need a low-cost, high-performance demodulator.
They support television standards M/N and B/G.
The DS1000 Series products
are full measurement-grade demodulators, with specifications better than demodulators
twice their size. Input sensitivity and other specifications make the DS1000
Series ideal for use as a repeater or as the analog front end of an RF-to-digital
conversion system in all-digital cable systems. It can also act as a precision
set-top converter for making baseband measurements in the field.
The
DS1000 Series products are well suited for remote node monitoring. The addressable
serial port allows remote control and status monitoring using computers and
modems.
For a complete solution that includes a graphical display,
the DS1000 Series can be combined with the 1740A Combination Waveform/Vector
Monitor.
Ghost Canceling
The DS1001G incorporates state-of-the-art
ghost canceling technology which improves overall video quality by using a
specialized ghost canceling test signal, pre-inserted into the television
signal by broadcasters, to automatically null out annoying static or dynamic
picture "ghosts" caused by RF signal reflections from large buildings, trucks
or changing weather conditions.
Audio Support
Audio support
includes BTSC stereo for system M/N (DS1001A) as well as both FM (mono &
dual tone) and NICAM support for System B/G (DS1002). The DS1001A audio outputs
are through special terminal-block connectors, which provide simultaneous
outputs of Left, Right and SAP audio channels. The DS1002 audio output is
through 2xLR connectors. These connectors can be configured in a variety of
ways (depending on system), including: mono, SAP, stereo right and left, both
right or both left. The DS1001A also has a 4.5 MHz intercarrier output for
driving an external aural modulation monitor.
Remote Programming
The
DS1000 Series supports remote programming via either RS-232 or RS-485 at 9600
baud. Most front-panel controls can be accessed via the port.
Characteristics
|
|
DS1001A/DS1001G (M/N)
|
DS1002 (B/G)
|
|
RF Section
|
|
IF Section
|
|
Quadrature Video Output
|
|
Video Section
|
|
Audio Section
|
|
RF Tuning Range
|
55.25 to 801.25 MHz (Under range to 53.75)
|
48.25 MHz to 860.25 MHz (Under range to 45.25 MHz)
|
|
RF Sensitivity*1
|
0 to +30 dBmV, +60 to +90 dBµV
|
0 to +30 dBmV, +60 to +90 dBµV
|
|
Return Loss
|
>6 dB
|
>6 dB
|
|
Input Impedance
|
75 Ω
|
75 Ω
|
|
Input Connector
|
Female "F"
|
Female "F"
|
|
Channel Tables
|
User configurable
|
User configurable
|
|
Visual IF Frequency
|
45.75 MHz
|
38.9 MHz
|
|
Aural IF Frequency
|
41.25 MHz
|
33.4/33.16/33.05 MHz depending on sound system
|
|
IF Output
|
+51 dBmV/+111 dBµV (typical), BNC
|
+51 dBmV/+111 dBµV (typical), BNC
|
|
BNC Connector
|
Yes
|
Yes
|
|
Video Outputs
|
Two BNC connectors
|
Two BNC connectors
|
|
4.5 MHz Intercarrier Input and Output
|
Two BNC connectors
|
None
|
|
Video Signal Output
|
1 Vp-p baseband video (GCR 1 channel only)
|
1 Vp-p baseband video
|
|
Video Signal-to-noise*1
|
>50 dB (NTC7-weighted)
|
>50 dB (unified-weighted)
|
|
Frequency Response(18°C to 26°C)
|
±0.7 dB, 100 kHz to 3.58 MHz (typical)
|
±0.7 dB, 100 kHz to 4.43 MHz
|
|
Group DelaySound Trap Off
|
±50 ns, 100 kHz to 3.58 MHz
|
±60 ns, 100 kHz to 4.43 MHz
|
|
Group Delay Reference Sound Trap On
|
FCC
|
Curve B
|
|
Differential Gain
|
<1.5% (<2.5% DS1001G typical)
|
<1.5%
|
|
Differential Phase
|
<1.5° typical (<2° DS1001G typical)
|
<1.5° typical
|
|
Chroma/Luma Delay
|
<40 ns
|
<40 ns
|
|
Luminance Bar Amplitude
|
<2%
|
<2% typical
|
|
Luminance Bar Tilt
|
<2% (typical 1%)
|
<3% typical
|
|
2T K-factor
|
<2.5% (typical 1%)
|
<2.5% typical
|
|
Line Time Distortion
|
<3% typical
|
<3% typical
|
|
Audio Outputs
|
Terminal-block connectors (simultaneous outputs of Left,
Right, SAP)
|
2 XLR configurable (Auto Switching FM or NICAM, Auto
Switching for Mono, Dual Sound & Stereo)
|
|
Level
|
0 dBm across 600 Ω
|
0 dBm across 600 Ω
|
|
Frequency Response
|
±0.5 dB, 50 Hz to 12 kHz (typical)
|
±0.5 dB, 50 Hz to 12 kHz (typical)
|
|
THD
|
<1% at 1 kHz*2
|
<1% at 1 kHz*2
|
*1 Video signal to noise tested at +19 dBmV/+79 dBµV.
*2
Audio THD tested with a blackburst video signal.
The DS1000 series
television demodulator can be part of a total television monitoring system
when coupled with a VM700T video measurement set.
Environmental
Temperature
-
Operating: +5°C to +35°C.
Nonoperating: -20°C to +70°C (DS1001A/DS1001G).
-20°C to +75°C (DS1002).
Altitude - Operating: 0 to 6,500 ft.
(2,000 m). Nonoperating: 0 to 50,000 ft. (4,572 m).
Safety
- Complies with: IEC61010–1, EN61010–1, UL3111–1, CSA1010.1.
Power
Source
Power - Voltage Range: 95 to 240 VAC. Line Frequency: 50/60 Hz.
Power
Consumption - 35 W maximum.
Physical Characteristics
|
Dimensions
|
mm
|
in.
|
|
Weight
|
kg
|
lbs.
|
|
Height
|
46
|
1.8
|
|
Width
|
206
|
8.1
|
|
Depth
|
440
|
17.3
|
|
Net
|
2.2
|
4.8
|
Ordering
Information
DS1001A
M/N Television Demodulator.
Includes: User's
manual, power cord, special audio terminal block connectors. Please specify
power plug when ordering.
DS1001G
M/N Ghost Canceling Television
Demodulator.
Includes: User's manual, power cord, special audio
terminal block connectors. Please specify power plug when ordering.
DS1002
B/G
Television Demodulator.
Includes: User's manual, power cord.
Please specify power plug when ordering.
Power Plug Options
Opt.
A0 - US Plug, 115 V, 60 Hz.
Opt. A1 - Euro Plug, 220 V,
50 Hz.
Opt. A2 - UK Plug, 240 V, 50 Hz.
Opt. A3
- Australian Plug, 240 V, 50 Hz.
Opt. A4 - N. American
Plug, 240 V, 50 Hz.
Opt. A5 - Swiss Plug, 220 V, 50 Hz.
Service
Opt.
C5 - Calibration Service 5 Years.
Opt. D1 - Calibration
Data Report.
Opt. D5 - Calibration Data Report 5 Years (with
Option C5).
Opt. R3 - Repair Service 3 Years.
Opt.
R5 - Repair Service 5 Years.
Recommended Accessories
TVGF11A
- Rackmount single DS1000 series in a 483 mm (19 in.) rack.
TVGF13
- Rackmount two half-rack instruments side-by-side in a 483 mm (19 in.)
rack.
TVGF14 - Rackmount two half-rack instruments vertically
in a 19 in. rack (use to combine DS1000 Series with a 1700 series monitor).
TVGF14
and 1700F02 - Portable case for two half-rack instruments.
Support
Options
Contact your local Tektronix representative.
|
|
Product(s) are manufactured in ISO registered facilities.
|
25W-11248-5a, 01-DEC-2002
| 
