Knowledge Base

Found 673 results for: gcw script

02 What is the right ascension?

Right ascension - Wikipedia Right ascension α or a (Latin ascensio recta 'straight ascent') is one of the two polar coordinates in the rotating equatorial coordinate system of spherical astronomy. Right ascension is more often given in time measure than in degrees or radians. The indication...
Right ascension - Time to Degree
95 November 21, 2022
02 What is obfuscation?

Obfuscation is another term for encoding or coding. How does the Bundeswehr obfuscate? Obfuscation is done with the Aliases/words/letters Numeral Code Procedure The individual letters and numbers are searched for in the Numeral Code table and the corresponding letter in the...
Bundeswehr
100 November 21, 2022
01 What is authentication?

Authentication is the process of proving that you are authorized to participate in processes/information etc. Example: The radio station KEULE wants to check whether the radio station EREMIT is authorized for the radio circuit: EREMIT, KEULE here, what is the authentication for YANKEE,...
Bundeswehr
176 November 21, 2022
00 What is Piet?

Esoteric programming language - Wikipedia Piet is an esoteric programming language in which the program code looks like an abstract painting. It was invented by David Morgan-Mar and named after Piet Mondrian, a pioneer of abstract art. The sample program on the left outputs the word...
Piet
1936 November 21, 2022
03 How are Maya numbers decoded or encoded?

Decoding of Mayan Numbers By clicking on the individual segments, the single number is built up and output numerically. In addition, the individual numbers are added up according to the place value system. So in this example: 9 * 20 + 11 = 191 creates new number deletes last...
Maya
181 October 17, 2022
03 How does GC Wizard deals with Waveforms?

GC Wizard is able to analyze WAV Files and draw their Waveforms. After loading a WAV File the WAV file can be playedthe Waveform is calculated and displayedthe settings for the Wavform calculation can be adjustedidentified Morse code is displayed - if applicabledecoded text from identified...
Waveform
66 May 10, 2022
02 How to calculate and draw the Waveform?

Online calculator: Audio file waveform (planetcalc.com) PCM audio data is stored as a sequence of signal amplitude samples recorded at regular intervals. E.g. one second of the low-quality 8kHz audio consists of 8000 amplitude samples. To display every point of this fragment as is, you need at...
Waveform
177 May 10, 2022
01 What is Pulse-Code-Modulation – PCM?

Pulse-code modulation - Wikipedia Pulse code modulation, or PCM for short, is a process that converts a time- and value-continuous analog signal into a time- and value-discrete digital signal. Sampling of the analog signal with a constant sampling rate over time. The sampling rate must be...
Waveform
89 May 10, 2022
00 What is a Waveform?

Waveform - Wikipedia The waveform is the pictorial representation of the time course of an oscillation. For example, volume and frequency are represented on the time axis. For the display, it is necessary to sample and digitize the continuous-time and continuous-value analog...
Waveform
99 May 10, 2022
01 What is authentication?

Authentication is the process of proving that you are authorized to participate in operations/information etc. Example: The radio station KEULE wants to check whether the radio station EREMIT is authorized for the radio circuit: EREMIT, KEULE here, what is the authentication for YANKEE,...
Bundeswehr
108 May 10, 2022
00 What is a Talking Board?

A Talking Board is used to either simplify or encode the communication, i.e. to disguise the actualto disguise the actually transmitted content for unintended listeners and readers. Essential components of a Talking Board are Directory of aliasesDirectory of cover wordsDirectory of cover...
Bundeswehr
251 May 10, 2022
01 How does GC Wizard interpret and generate Befunge programs?

Interpreting Befunge programs Just switch to Interpreter and enter the program. The Input field is used when input is necessary. All input has to be seperated by spaces. Debug The Debug Section provides further stepwise informtaion how the program was executed. For every step of...
Befunge
122 April 15, 2022
08 What is CCIR 476?

https://en.wikipedia.org/wiki/CCIR_476 CCIR 476 is a character encoding used in radio data protocols such as SITOR, AMTOR and Navtex. It is a rewrite of the ITA2 character encoding, expanded from a five-bit code to a seven-bit code. In each character, exactly four of the seven bits are...
CCITT
2050 April 15, 2022
07 What is the International Reference Alphabet?

The IRA is the further development of the IA No. 5. T.50 : International Reference Alphabet (IRA) (Formerly International Alphabet No. 5 or IA5) - Information technology - 7-bit coded character set for information interchange (itu.int). This recommendation specifies a 7-bit encoded character...
CCITT
1445 April 15, 2022
06 What is the International Alphabet No. 5?

ITA-5 is a 7-bit code in addition to ITA-2. T.50 : International Alphabet No. 5 (itu.int) This recommendation specifies a set of 128 characters (control characters and graphic characters likeletters, numerals and symbols) with their coded representation. Most of these characters...
CCITT
726 April 15, 2022
05 What is the International Telegraph Alphabet No. 4?

With the progressive development, introduction and use of telex, there was a need to further develop the telegraph alphabet as well. The International Telegraph Alphabet No. 4 was developed for transmission with a 6-bit synchronous time-division 2-3-channel multiplex system for connection to...
CCITT
230 April 15, 2022
04 What is the International Telegraph Alphabet No. 3?

When transmitting telexes with 5-bit codes, e.g. ITA-2, over radio links, considerable error rates may occur. For this case the ITU recommendation p.13 recommends the use of a 7-bit ARQ system with the International Telegraph Alphabet No. 3. S.13 : Use on radio circuits of 7-unit synchronous...
CCITT
158 April 15, 2022
03 What is the CCITT ITA-2 Code?

Baudot code - Wikipedia To facilitate character entry, Donald Murray around 1901 developed a keyboard similar to that of a typewriter, which punched the associated string of five bits into a punched tape by pressing a single key. Murray retained Baudot's level switching, but rearranged...
CCITT
815 April 15, 2022
02 What is the CCITT ITA-1 Code?

Baudot code - Wikipedia The original Baudot code (later International Telegraph Alphabet No. 1 (ITA1), CCITT-1) was designed by Émile Baudot in 1870 for a telegraph apparatus he developed. Baudot applied for a patent for his invention in France: January 06, 1882, No. 146,716in Belgium:...
CCITT
835 April 15, 2022
02 Polyalphabetic encryption – ENIGMA

The Enigma (from the Greek word "ainigma" = riddle) is the undisputed star among the encryption machines of the Second World War. Not because it is the best, but because it is by far the best known. Whereby it was really good and almost impossible to crack. Purely technically, Enigma is a rotor...
Encryptions
228 April 07, 2022