- CW DECODER CONNECTION TO 590S MANUAL
- CW DECODER CONNECTION TO 590S SOFTWARE
- CW DECODER CONNECTION TO 590S CODE
CW DECODER CONNECTION TO 590S SOFTWARE
The software has to look up those source-coded messages in a codebook to print a readable message, giving some sense. There is a set of 127 symbols, with the first numbers 00 to 99 representing numbers, and each of the remaining number specific situations like “110” denoting “Man over board”. MMSIs starting with 00 denote a Coastal Station, e.g., 004123100 for Guangzhou Radio/China. To establish a call, each station has been assigned to an unique MMSI, or Maritime Mobile Security Identity number consisting of now nine digits, in future 10 digits. Waveform is ‘kind of SITOR-B, repeating each character twice with a 400ms spread to enhance proper decoding under adverse propagation ( Rec. Transmission is done in 2-FSK with 170Hz shift and at speed of 100Bd. Monitoring on all six main channels in parallel, often raises 3000+ messages a day! You may hear vessels of each and every kind, from small ones for pleasure to the biggest oil tankers, and all over the world. In this case from Vestmannaeyjar Radio in Iceland to Cape Town Radio in South Africa, and from Valparaiso Playo Ancha Radio in Chile to Taupo Maritime Radio in New Zealand. Reception of both, Coastal Stations and vessels, is from around the world. There, the six main channels range from 2MHz to 16MHz. This blog entry focus on Black Cat GMDSS decoder, hence on HF. The Global Maritime Distress and Safety System is a system of different maritime communications tools on frequencies ranging from as low as 424kHz over HF and VHF up to satellite channels in the GHz region. In addition to an extraordinary sensitive decoder, it also includes smart processing of the data – from looking up vessel’s complete data from ITU’s Ship Station List (internet connection needed) to saving all data to a fully-fledged database. In closing, CW Decoder is a reliable application if you want to decode or encode messages sent using continuous wave signals.Decoding all GMDSS channels at once: Black Cat System’s groundbreaking GMDSS Decoder.Ĭhris Smolinski, W3HFU, did it again: after his multi-channel attack to ALE, he now offers this highly innovative concept also for GMDSS – Black Cat GMDSS. The third and final mode enables the application to decode CW and present it in text form.ĬW Decoder is also capable of transmitting data using a COM port and enables you to synchronize to a receiving speed.
CW DECODER CONNECTION TO 590S MANUAL
In manual mode, it acts like a decoder in which you can type text. The first one, ‘Scan’ mode enables the application to function as a spectrum analyzer with a graphical display. The application can be set to work in three different modes. Since CW Decoder uses text for the translated signals, its equipped with a scrollable text window in which you can adjust the text size and obviously, you can save the text itself in a TXT file. Having this option switched on can consume a bit of system resources but that only applies to computers with a processor that has less than 300 MHz capability. Since the application is used to process sound, one of its features is an audio filter that uses a noise reduction algorithm when the signal is processed. Threshold levels for the signal can also be set and you get auto, quiet, noisy and manual to choose from. You are able to choose between two displays modes, line and waterfall.
CW DECODER CONNECTION TO 590S CODE
The application can display a graphical spectrum, text, signal strength, code status, WPM counters and an overload indicator for the input signal. If you're not familiar to this sort of application, then you need to read the help manual page by page to understand each button, slider and option. These waveforms are used to carry information and the best example for this is Morse code.Īs far as the interface goes, it’s not that comprehensive for the average user. CW Decoder is an application created to help you view and display continuous waves in a simple manner.