Features
& Benefits
- Graphic CRT Display of Stereo Audio Signal
- AGC
for Continuously Viewable Pattern
- Bar Graph for Quick Setups and
Accurate Peak Indication
- Third Bar Indicates Mono Compatibility when
Set to L+R
- Suitable for Phase and Amplitude Measurements
- Scale
and Dynamics Conform to IEEE ppm Standard
- EXPAND SCALE Feature Increases
Resolution at -8 dB Level for Accurate Line-ups
- White Phosphor CRT
Option Available
Applications
- Audio
Equipment Setup
- Audio Post Production
- Creative Adjustments
With the Tektronix
760A Stereo Audio Monitor, the audio engineer can analyze a pattern display
of the stereo audio signal. This display, along with a high resolution bar
graph, provides accurate monitoring and measurement capabilities. Used in
both operation and setup, the instrument provides immediate feed-back of the
audio signal for creative or technical correction. With the appropriate test
signals, the unit can also be used for accurate phase and amplitude measurements.
On
the CRT and adjacent bar graph, you can observe amplitude information, stereo
separation, and phase correlation between the left and right channels. Also
of great importance, you can see monaural amplitudes resulting from the stereo
channels.
Your choice of automatic or manual gain control provides
flexible control of the pattern size. With no input signal, the display will
dim to prolong CRT life.
Two calibrated bars are dedicated to the left
and right channels. The input to a third bar is selectable from Sum, Difference
(both internally derived) and an Auxiliary input on the rear panel. These
bars give the operator even greater resolution for setting line-up level when
the EXPAND SCALE push button is depressed. This increases resolution around
the line-up point of the bars. A selectable three second PEAK HOLD control
makes level monitoring easier than ever.
The 760A is ideally suited
for use in editing suites, master control, transmission and any other locations
where monitoring the stereo audio signal is a must.
760A Rear Panel.
Characteristics
Display
Range - Normal: +8 to -45 dB.
Green to 0 dB.
Red above 0 dB.
Expanded:
-5 to -11 dB.
Expands around -8 dB (TEST).
Resolution
- Normal: 0.4 dB, +8 to -20 dB.
Expanded: 0.1 dB.
Jumper selectable
to 0, +4, +8 +12, +16 dBu for 0 dB indication.
Accuracy @
1 kHz - ±0.3 dB at 0 dB.
Audio Inputs
Balanced Bridging
- >10 kΩ/side.
Termination - Selectable from >20 kΩ, 600 Ω,
150 Ω (internal jumper).
Protection - Will withstand 50 V peak
common-mode input, DC to 20 kHz, without damage.
Sensitivity - Gain
selectable for 0 dB bar indication for sine waves of 0, +4, +8, +12 and +16 dBu
(internal jumper).
CRT Display
Graticule -
L,
R, L = R and L = -R lines.
Major and minor tics for phase: measurements
at 10° and 5° respectively, on L axis.
Automatic Gain Control
(AGC) - Control range -28 dB.
Gain Match and Tracking (over
AGC range) - ±0.3 dB.
Phase Match - ±1° at 0 dB.
Frequency
Response - ±0.5 dB, 20 Hz to 20 kHz.
Z-axis Dimming - With
absence of signal.
Bar Graph
100 Segment LED
Peak
Hold - Switchable On/Off: approximately 3 seconds.
Attack/Decay
Dynamics - 760A: ppm per draft IEEE Standard, IEC 268-10, and EBU 2305.
Frequency
Response - ±0.5 dB, 20 Hz to 20 kHz from: +8 to -20 dB
Gain
Match - ±0.3 dB.
Crosstalk - A full scale signal on any
channel causes no indication on remaining bars.
Front Panel Controls
Power
On/Off
For CRT Display - Intensity, Gain Auto/Man/Cal, Horizontal/Vertical
Position, Focus, Trace Rotation.
For Bar Graph - Third Bar
Selector (L + R) / 2 , (L - R) / 2, AUX; Peak Hold On/Off; EXPAND SCALE.
Rear
Panel Connectors
XLR Inputs - Left, Right, Auxiliary.
Power
110
V - 90 – 132 V
220 V - 180 – 250 V
Fuse
Power
Consumption - 30 W max.
Environmental
Temperature
-
Operating: 0 °C to +50 °C
Non-Operating: -55 °C to +75 °C
Humidity
- Will operate at 95% relative humidity for up to five days.
Altitude
-
Operating: 15,000 ft.
Non-Operating: 50,000 ft.
Certifications
EMC
- Certified to the EMC Directive 89/336/EEC.
Safety -
Approved
to: UL1244,
CAN/CSA-C22.2 No.231.
Complies with: HD401 S1, IEC 348.
Physical
Characteristics
|
Dimensions
|
mm
|
in.
|
|
Weight: Approximately
|
kg
|
lb.
|
|
Height
|
133
|
5.25
|
|
Width
|
214
|
8.424
|
|
Length
|
429
|
16.875
|
|
|
4.5
|
10
|
Ordering
Information
When ordering please use nomenclature given here. The
standard instrument is shipped without a case or handle. The 760A Series
is a UL recognized component and meets the requirements for listing when used
in the appropriate enclosure
760A
Stereo Audio Monitor.
Includes: Instruction
manual, X-Y graticule, power cable assembly, statement of compliance.
Please
specify power plug when ordering.
760A Options
Opt. 74
- Substitutes white phosphor CRT.
Power Plug Options
Opt.
A0 - US Plug, 115 V, 60 Hz
Opt. A1 - Euro Plug, 220V, 50
Hz
Opt. A2 - UK Plug, 240V, 50 Hz
Opt. A3 - Australian
Plug, 240V, 50 Hz
Opt. A4 - N. American Plug, 240V, 50 Hz
Opt.
A5 - Swiss Plug, 220V, 50 Hz
Service
Opt. R3 - Repair
Service 3 Years
Opt. R5 - Repair Service 5 Years
Optional
Accessories
1700F00 - Plain Cabinet
1700F02 - Portable
Cabinet
WFM7F05 Opt. OO - Dual Rack Adapter
1700F06
- Blank Panel
Portable Applications
760A Series stereo
audio monitor plus 1700F02 Portable Cabinet.
