Wavetek 3HRV Bedienungsanleitung PDF herunterladen (Seite 7)

for 78-channel plan, 8 channel plans; 16 sweep

references, 80 sweep traces; 40 scan files,

20 spectrum displays; 20 autotests

Serial interface

RS232; Epson, IBM, Seiko, and Diconix printers

Input configuration

Connector type 75 Ω Type F Female

(Optional 75 Ω Type BNC Female)

Maximum sustained voltage 100 VAC, 140 VDC

PathTrak field view (OPT 3 required)

Update rate 2x/second (remote trace)

~1x/second (local trace)

Display scaling 5/1/2/5/10/20dB/div.

Selectable nodes 14 (selectable via PathTrak HCU)

View option (OPT 4)

The QAM View option can be factory installed in

any new or existing SDA Series instrument. The

specifications and features are in addition to the

standard measurement features of the SDA Series.

When ordering, please specify OPT 4A for 8MHz,

DVB-C, ITU-T J.83 Annex A, or OPT 4B for 6MHz,

DVS-031, ITU-T J.83 Annex B.

Modulation type

64/256 QAM, DVB-C,

ITU-T J.83 Annex A (OPT 4A)

64/256 QAM, DVS-031,

ITU-T J.83 Annex B (OPT 4B)

Channel bandwidth

8 MHz (OPT 4A); 6 MHz (OPT 4B)

Measurable input range (lock range)

64 QAM –20 to +50 dBmV (typical)

256 QAM –15 to +50 dBmV (typical)

Frequency tuning

50 to 860 MHz (Digital QAM mode)

Resolution 50 kHz

BER (bit error rate)

64 QAM Pre-FEC/OPTs 4A and 4B 10

–4

to 10

–9

64 QAM Post-FEC/OPTs 4A and 4B 10

–4

to 10

–9

256 QAM Pre-FEC/OPT 4A and 4B 10

–4

to 10

–9

256 QAM Post-FEC/OPT 4A and 4B 10

–4

to 10

–9

MER (modulation error ratio)

64 QAM/Option 4A 22 to 35 dB

Accuracy ±2.0 dB (typical, see chart below)

64 QAM/Option 4B 21 to 35 dB

Accuracy ±1.5 dB

256 QAM/Option 4A 28 to 35 dB

Accuracy ±2.0 dB (typical, see chart below)

256 QAM/Option 4B 28 to 35 dB

Accuracy ±1.5 dB

EVM (error vector magnitude)

64 QAM/Option 4A 1.2% to 5.2%

Accuracy ±0.5% (1.2% to 2.0%)

±1.0% (2.1% to 4.0%)

±1.4% (4.1% to 5.2%)

64 QAM/Option 4B 1.2% to 5.8%

Accuracy ±0.5% (1.2% to 2.5%)

±1.1% (2.6% to 5.8%)

256 QAM/Option 4A 1.1% to 2.5%

Accuracy ±0.6%

256 QAM/Option 4B 1.1% to 2.5%

Accuracy ±0.5%

QAM level measurement

Signal types 64 QAM, 256 QAM

Range –20 to +45 dBmV

Accuracy ±1.0 dB

Flatness ±0.5 dB

Linearity ±1.0 dB

Temperature ±0.5 dB (typical)

Measurable QAM ingress

64 QAM –25 to –40 dBc

256 QAM –30 to –40 dBc

Accuracy ±3.0 dB

Graphic display

Digital summary (including MER/EVM, Pre/Post

FEC BER, Equalizer Stress, Carrier Offset, Symbol

Rate) with limit/margin test results, QAM level.

IQ constellation with zoom. Adaptive Equalizer

Display (8 feed forward/24 feedback), Frequency

Response, Group Delay. Ingress/Noise Under

the Carrier.

Power source

Note: Option powered from SDA Series nickel metal

hydride battery. Operating time is specified for

continuous use in QAM View mode. Option includes

high output charger.

Charge time ~4 hours

Operating time 2.5 hours continuous use (typical)

Universal AC charger/adapter

Input 100-250 VAC, 50-60 Hz, 0.5 A

Output Charge 15 V at 750 ma

Physical dimensions

(total SDA-5000 size with OPT 4)

6 x 10.5 x 4.25 in

(15.2 x 26.7 x 10.8 cm)

Weight Approx. 7.7 lb (3.5 kg)

Operating temperature range –4 to 113°F

(–20 to 45°C)

Notes

(1)

Typical specifications

(2)

Relative to 25°C

(3)

At 25°C and +20 dBmV

(4)

(5)

Tilt measurement

Up to nine pilot carriers or video channels with tilt

and level measurements on the highest and lowest.

Hi-Lo ∆ Resolution 0.1dB

Scan mode

All video, audio, pilot carrier, and digital channel

levels displayed.

Sweepless Sweep mode

Frequency range 5-1000 MHz

Display span User definable

Display scale/range 6 vertical divisions 1, 2, 5,

or 10 dB/division

Sweep pulse occupied bandwidth 30 kHz

Stability ±0.5 dB, normalized (dependent

on stability of referenced carriers)

Sweep rate ~1 second (78 Channels, including

scrambled and digital signal types)

Channel plan templates (user editable)

China-1; China-2; France; HDTP-NL; Ireland;

Japan; Jerold; Jerold-HRC; Jerold-IRC;

NCTA; NCTA-HRC; NCTA-SUB; NCTA-IRC;

NTSC-Broadcast; OIRT-D/K; PL-B/G; PAL-UK

Spectrum mode

Spans 3, 5, 10, 20, and 50 MHz

(0.3, 0.5, 1, 2, and 5 MHz/div.)

Sweep rates ~1 second updates with

spans of 50, 20, 10 and 5 MHz

~1.7 second updates with 3 MHz span

Display scaling and range 0.5, 1, 2, 5, and

10 dB/div. 6 vertical divisions

Dwell programmable 0-25 ms

Spurious free dynamic range 60 dB

(3)

Sensitivity without preamp –40 dBmV 5 to 550 MHz

–35 dBmV 550 to 1000 MHz

Sensitivity with preamp –50 dBmV 5 to 550 MHz

–45 dBmV 550 to 1000 MHz

Max. level with preamp +50 dBmV

Zero Span mode

Video BW >1 MHz, 100 kHz, 10 kHz, 100 Hz

Resolution BW 2 MHz, 280 kHz, 30 kHz

Measurement BW Compensation

programmable 1 kHz to 99 MHz

Pulse measurement accuracy

nominal level in 10 µs

±2 dB from nominal in 5 µs

(>1 MHz VBW, 280 kHz RBW)

Sweep times 100 µs to 20 s (1, 2, 5 settings)

Intermodulation distortion (CSO/CTB)

Range

(5)

≥ 60 dB

Resolution 0.1 dB

Data storage

Files types that can be stored: Sweepless Sweep,

autotests, tilt graphs, channel plans, and scan

graphs. Spectrum graphs (normal, normal with max

hold, and CSO/CTB) can also be stored. Memory

space is allocated on demand. All files stored as

data, not as screen picture. Typical mix of files

–1001014

Carrier to Noise Range (dB)

Video Carrier Level (dBmV)

–20 –10 0 10

20 30

Depth of Measurement (dB)

(without preamplification/with preselection

Video Carrier Level (dBmV)

±2.0 dB Accuracy

±3 dB Accuracy

Out of measurement range

±3 dB Accuracy

±2.0 dB Accuracy

1 2 3 4 5 6 7 8

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