The Wavetek hand-held SAM 4040 performs essential cable TV system preventive maintenance tests with accuracy and ease. Signal levels, hum, C/N, and frequency response can be quickly tested.
The SAM 4040, conducts a battery of signal level measurements, including a full scan of the cable spectrum to 1 GHz. A proprietary digital signal processing (DSP) technique is used to measure hum and carrier to noise on modulated carriers.
It is a full-featured signal analysis meter, with a complete spectrum display and analog representation of single channel measurement data. When tuned to a specific channel, a comprehensive set of information is provided: tuned channel, video frequency and level, audio frequency and level, the difference between video and audio carrier levels.
The SAM 4040 is a streamlined, hand-held instrument, that weighs less than five pounds. Its 320 X 240 dot matrix LCD shows measurement data in both graphical and numerical form.
Range: 5 to 1,000 MHz
Accuracy: + 10 ppm at 25°C; + 10 ppm drift over temp.; + 3 ppm/year aging
Resolution Bandwidth: 280 kHz
Tuning Resolution: 10 kHz
Sweep Resolution 250 kHz maximum
Range: -40 to +60 dBmV
Resolution: 0.1 dB
Accuracy: + 1.0 dB from -20 to + 50°C (typical specifications), (relative to 25°C)
(carrier > 0 dBmV) Non-scrambled channels only.
Range: 0 to 10%
Carrier to Noise Measurement
Non-scrambled channels only. No preselection required for 78 channels at +10 dBmV input level.
Range: 52 dB maximum
Resolution: 0.5 dB
Sweep Rate » 1 second
Accuracy: + 0.5 dB, normalized (dependent on stability of referenced carriers)
Display Scaling and Range: 1, 2, 5, and 10 dB/division; 6 vertical divisions
Sweep Span: User definable from 5 to 1,000 MHz
Reference Storage: At least 16
Sweep Trace Storage: At least 50
Spans: 3, 5, 10, 20, and 50 MHz (0.3, 0.5, 1, 2, and 5 MHz/div)
Sweep Rates: 2 seconds (50 & 5 MHz)
Display Scaling and Range: 0.5, 1, 2, 5, and 10 dB/division; 6 vertical divisions Spurious Free
Dynamic Range: 60 dB (typical specifications)
Depth of Modulation
Assumes presence of white reference on any VITS line. Nonscrambled channels only.
Range: 80 to 100%
Resolution: <0.5% at 85%
Serial, RS232; Epson, IBM Printers
Log Linearity: +0.5 dB (typical)
Flatness: +0.5 dB @ 25 °C, @ 20 dBmV
Dimensions: 15.2 cm (W) x 25.4 cm (H) x 5.1 cm (D), 6″ (W) x 10″ (H) x 2″ (D)
Weight: 1.95 kg (4.3 lbs.)
Operating Temperature Range: -20 to +50°C; 0 to 120°F
Battery Life: 2.5 hours continuous (absolute worst case), replaceable battery cartridge
Charge Time: 4 hours fast charge; 30 hours slow charge (with unit operating)