Wavetek SAM 4040 Signal Analysis CATV Meter
Condition: Refurbished / Calibrated
Warranty: 1 YEAR WARRANTY
Wavetek SAM 4040 Digital Analyzer
W avetek’s SAM 4040, a next generation signal analysis meter, is more like a hand-held broadband communication service monitor, with a broad scope of practical test capabilities. It performs essential cable TV system preventive maintenance tests with accuracy and ease. Signal levels, hum, and C/N can be quickly tested without interrupting subscribers’ reception. In no time, technicians are up and running the full range of tests with unprecedented speed. The hand-held, lightweight, rugged, and water resistant SAM 4040 utilizes down-sized electronics including surface mount components and multilayer PC boards. The measurement information is clearly displayed on a high resolution (320 X 240) LCD. The SAM 4040 is the first signal level meter available with Wavetek’s trademarked Sweepless Sweep®, in which active system carriers are measured and compared to a stored reference to determine system frequency response. In addition to its sweep reception capabilities, the SAM 4040 performs a battery of signal level measurements, including a full scan of the cable spectrum to 1 GHz, and a built-in spectrum analyzer with spans from 3 to 50 MHz. A proprietary digital signal processing (DSP) technique is used to measure hum and carrier-to-noise on modulated (unscrambled) carriers.
Comprehensive Level Display
The streamlined, hand-held SAM 4040 shows measurement data in both graphical and numerical form. 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, and the battery charge condition.
The SAM 4040 automatically learns the system channel plan through a special setup procedure. Individual channels can be described with special characteristics, including video to audio carrier frequency offset, presence of dual sound or NICAM audio, and even programming content. For dual sound and NICAM channels, the absolute levels and the differences between video and audio carrier levels are shown for both audio carriers.
Digital QAM Carrier Level Measurement
This option permits accurate average power measurements of digitally modulated (16 and 64 QAM) carriers. The user simply specifies that the channel is a "digital carrier" type in the channel plan, and then indicates the bandwidth of the carrier to be measured. When a digital channel is selected, the instrument automatically switches to an RMS detection mode, makes and processes the measurement, and displays the result on the LCD. The levels are displayed in similar fashion to "single" carrier types. These screens may be printed directly, and the levels may be stored and printed or uploaded to a PC as part of an Autotest.
Informative Tilt Display
Before initiating a sweep at a specific amplifier test point, the technician typically balances the pilot levels. The “tilt” mode simplifies this step by displaying a bar graph with up to nine different user selected video carrier levels represented. The levels of high and low pilots are shown, along with the difference between these carrier levels. From this mode, the operator can quickly switch to sweep by pressing the “sweep” key.
Channel Scan Mode
To get a quick look at absolute carrier levels, the “scan” mode is used. In this mode a bar graph showing all carrier levels is displayed. A marker selects which of the carriers’ levels is displayed on the bottom of the screen. Pressing the “level” key quickly changes the mode to show more detailed measurement information about the marked channel. A “scan limits” feature enables a quick Go/No-Go test based on user defined limits for minimum video carrier levels, maximum and minimum difference between video and audio carrier levels, maximum level difference between adjacent video carriers, and maximum level difference over the entire band. This allows the operator to quickly check to make sure the subscriber drop is within FCC specifications before initiating the 24 hour test.
In-Service Hum Measurement
For a hum measurement, simply press the “hum” key. The hum modulation of the last tuned channel will be displayed in either % or dB as selected by the operator. Soft keys allow the operator to select 60, 120, or <1,000 Hz filters for NTSC systems and 50, 100, or <1,000 Hz filters for PAL systems to help in troubleshooting. Stealth’s hum measurement technique permits testing on modulated carriers.
In-Service C/N Measurement
For a C/N measurement, simply press the “C/N” key. The C/N ratio of the tuned channel will be displayed, along with the noise measurement frequency and bandwidth. The C/N measurement bandwidth and the frequency offset for the noise measurement may be controlled from the measurement screen. The SAM 4040 automatically searches for a quiet line in the vertical interval and makes the noise measurement during that line. Preselection is not required for up to 78 channels at a +10 dBmV input level.
Sweepless Sweep Display
The SAM 4040 is the first SAM with Sweepless Sweep®, which provides a passive sweep method based on comparative measurements of system signals. The levels are measured and stored at a reference point (headend, hub site, or first amplifier) and then compared on a sweep display at subsequent test points. Dynamic nonvolatile memory enables the storage of at least 50 sweep traces for later viewing or printing, and at least 16 references may be stored, enabling the operator to test the response from any specific point in the system (bridger, fiber node, splitter, etc.).
Spectrum Analyzer Display
SAM 4040’s spectrum analyzer display provides a view of the system spectrum with variable spans from 3 MHz to 50 MHz and a dynamic range of better than 60 dB. The “Max Hold” function ensures that the highest signal over multiple sweeps is displayed. Even the FCC in-channel response measurement can be made with the spectrum analyzer display.
Extensive Auto Test Capability
Automated tests can be scheduled to perform either FCC compliance tests, or they can be initiated immediately in order to log performance at individual nodes, amplifiers, or other test points. A wide range of tests can be performed automatically, including signal levels, C/N, hum and depth of modulation. Providing unprecedented flexibility, the SAM 4040 enables the operator to designate which tests to perform on which channels. Because testsare non-intrusive, it’s no problem to test all parameters on all channels. After a test is performed, results can be displayed on the screen with a pass/fail indication on a variety of limits. Limits can be set for FCC or other government standards, or to system preferences. Data taken during any automated test, or sequence of automated tests, can be viewed with a pass/fail indication for each of the limits, and the operator can scroll through the stored data to look at specific measurement results. Automated test results can be printed directly to a printer or uploaded to a PC using StealthWare to store and manage the data or format reports.
Data Analysis and Management With StealthWare
Any stored Stealth measurement information can be uploaded to a PC using StealthWare, a Windows™ based data management package. Stored sweep, scan, or spectrum screens can be viewed on the PC and analyzed with marker movement and readout information just as on the actual unit. StealthWare allows the operator to build channel plans and edit site locations which can then be downloaded to multiple Stealth instruments. Additionally, channel plans can be uploaded to the PC, modified in StealthWare, and then downloaded back to the Stealth instrument.
Video Depth of Modulation
Another first for SAMs is the Video Depth of Modulation test, in which the percent of modulation is displayed in both graphical and precise numeric format.
Specifications:
| Frequency | |
| Range: | 5 to 1,000 MHz |
| Accuracy: | ± 10 ppm at 25°C; ± 10 ppm drift over temp.; ± 3 ppm/year aging |
| Resolution Bandwidths: | 280 kHz |
| Tuning Resolutions: | 10 kHz |
| Sweep Resolution: | 250 kHz maximum |
| Level Measurement | |
| Range: | -40 to +60 dBmV |
| Resolution: | 0.1 dB |
| Accuracy: | ± 1.0 dB from -20 to +50°C |
| Hum Measurement | |
| Range: | 0 to 10% |
| Resolution: | < 0.2% |
| Accuracy: | ± 0.7% |
| Carrier to Noise Measurement | |
| Range: | 52 dB maximum |
| Resolution: | 0.5 dB |
| Frequency Response | |
| 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 (limited to cable system's active occupied bandwidth) |
| Reference Storage: | At least 16 |
| Sweep Trace Storage: | At least 50 |
| Spectrum Mode | |
| Spans: | 3, 5, 10, 20, and 50 MHz |
| 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 |
| Depth of Modulation | |
| Range: | 80 to 100% |
| Resolution: | < 0.5% at 85% |
| Serial Interface | |
| RS232; Epson, IBM printers | |
| General | |
| Log Linearity: | ± 0.5 dB |
| Flatness: | ± 0.5 dB |
| 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 |
| Powering | |
| Battery Life: | 2.5 hours continuous (absolute worst case), replaceable battery cartridge |
| Charge Time: | 4 hours fast charge; 30 hour slow charge (with unit operating) |
For full Wavetek SAM 4040 product specifications, please click here: Wavetek SAM 4040
Wavetek JDSU Acterna SAM 4040 Signal Analysis Meter
Performs essential cable TV system preventive maintenance tests with accuracy and ease. Signal levels, hum, and C/N can be quickly tested without interrupting subscribers’ reception.
Includes Carrying Case & Accessories As Listed
SAM-4040 SAM4040
Wavetek SAM 4040 SAM-4040 CATV Meter Models On Sale Warranty Calibration Backed by The Best Service and Lowest Prices in the Industry.
BC# 34803-L/T*
- Wavetek SAM 4040 Signal Analysis Meter (BC# 34803-L/T*)
- Coax Cable
- AC Adapter/Charger
- Power Cord
- RS232 PC Interface Cable
- User Manual on Cd-ROM
- Carrying Case (G)