What to do if Wavecom Media Converter session success fails due to a disturbed traffic channel?
If the Wavecom Media Converter cannot synchronize to the traffic channel, or loses sync, it might be due to the traffic channel being in a spot beam disturbed by a neighbor channel. Check the FFT display to investigate.
Why does Wavecom W74PC Media Converter fail to synchronize with the traffic channel during a fax session?
If the Wavecom Media Converter cannot synchronize to the traffic channel, the traffic channel might not be in a spot beam seen by the antenna, or the signal could be too weak. To address this, check the FFT display.
What to do if Wavecom W74PC Media Converter fax output is a .JBG file?
If the fax transmission is successful, but the Wavecom Media Converter output is a .JBG file instead of the default .TIF file, it is because the fax encoding is according to recommendation T.82/85. In this case, call WAVECOM for support.
How to correct Wavecom W74PC Media Converter receiver frequency error?
The receiver must be tuned exactly to the frequency setting received from the decoder. Any offset must be corrected and entered into the system via the Freq Offset field in the Configuration | Receiver and Satellite Settings... dialog.
How to improve Wavecom W74PC signal strength?
The Signal-Noise Ratio for the control and traffic channels should be at least -18 dB as measured with the FFT of the decoder. Depending on the location of the monitoring system, a dish size of 2 – 3 m will be needed.
General| Brand | Wavecom |
|---|---|
| Model | W74PC |
| Category | Media Converter |
| Language | English |
Description of WAVECOM hardware decoders W-PCI and W-PCIe with two independent channels and their specifications.
Description of W74PC hardware decoder with four independent channels and its capabilities.
Overview of the W-CODE application, its input devices, and frequency spectrum coverage.
Steps to start and configure the W-CODE decoder after software installation.
Details the organization and selection of HF protocols within the HF-Modes menus.
Explains how to edit decoding parameters like baud rate, mode, shift, and center frequency.
Powerful real-time spectrum analysis tool using Fast Fourier Analysis (FFT) with 4096-point resolution.
Produces a 3D display of FFT spectra over time, frequency, and amplitude.
Displays amplitude and frequency values produced by FFT over time, using color for amplitude.
Used to measure voltage over time, displaying relative and un-calibrated values.
Tool to measure baud rate, frequency shift, and center frequency of FSK transmissions.
Identifies transmission mode, baud rate, frequency shift, and center frequency of FSK systems.
Tool to determine characteristics of unknown PSK signals, providing spectrum display and symbol rate measurement.
Used for determining the periodicity of bit patterns and analyzing unknown modes.
Serves to determine baud rate distributions, tone duration, or bit length distributions.
Graphical display for analyzing analogue sequential single tone call systems.
Techniques for improving performance by providing error detection and correction for radio channels.
Explains the process of superimposing digital baseband signals onto a carrier.
Aircraft Communications Addressing and Reporting System, a packet radio system for aircraft communications.
Universal Automatic Identification System for ship collision avoidance and navigational advice.
Standards for digital radio communications for public safety, security, and commercial applications.
Automatic Transmitter Identification System used in VHF-UHF radio systems on the river Rhine.
Common telegraph code, base for many codes on radio circuits.
ETSI-standard for signaling information transmission.
Adaptive modulation system with ARQ and FEC using Reed-Solomon coding.
Adaptive modulation system with ARQ, uses Reed-Solomon coding.
Similar to CLOVER-2000 with different baudrate, spacing, and center frequency.
HF transmission mode developed by Australian company.
Asynchronous adaptive ARQ system using 16 tones.
Mode developed by Australian CODAN PTY., similar to GMDSS/DSC.
Differential Global Positioning System data, correction signal for GPS receivers.
Two-channel digital TDMA system for voice and short text messages.
Digital Private Mobile Radio, ETSI standard for digital radio protocol.
Europe-wide high speed paging system.
Synchronous picture telegraph system invented in the 1930s.
Pager transmission mode, often combined with POCSAG and GOLAY/GSC.
Radio signaling system for security authorities and organizations.
Global Maritime Distress and Safety System with DSC on HF band.
Pager system originating in USA, based on binary code.
Operates at radio channel rate of 100, 200 or 300 Bd.
Used by Globe Wireless on the Maritime Data Network.
HF data-transmission system operated by GlobeWireless.
Used by Globe Wireless on the Maritime Data Network, adaptive system.
HF Data Link protocols defined in ARINC Specification 635-3.
Uses 15 bit code with 10 bits for error detection and correction.
Selective call system defined by EIA standard RS-220.
Transmission mode in HF band for tactical digital information network.
Software tailored for meteorological satellite transmissions.
Multi-frequency shift keying digital transmission modes.
Non-mandatory part of MIL-STD-188-110 military standard.
Popular mode in long-haul HF data modems, specified by US Dept. of Defense.
Modified version of MIL-188-110A mode.
Defines 3G HF radio technology and high performance data link protocols.
Standard for Automatic Link Establishment (ALE).
Frequent visitor in amateur radio bands, with multiple variants.
Bit synchronous simplex system based on PACTOR.
Modern, narrow-band, reliable two-channel PSK mode.
Adaptive transmission mode providing higher throughput and improved robustness.
Adaptive transmission mode for higher throughput and improved robustness.
Pager services standard used by PTT administrations.
Carries digital voice, fax and low speed data.
NATO standard for HF radio links.
Digital voice and data system for public safety and civilian PMR.
Digital voice and data system for public safety and civilian PMR.
Describes fax and modem decoding features and software modules.
Information on license system, software updates, and available options.
Component for monitoring data output and producing alarms for user-configured messages.
Outlines terms for software licensing, protection, and usage.
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