Dual Tone Multi-Frequency signal generation and testing
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Last Updated: October 21, 2026
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Summary
This video provides an overview of how to use the Rohde & Schwarz CMA180 radio This was the third video of my trip. Last month I tried to record on Maxwell AFB, but they did NTXstorms, Please use with permission. NTXstorms will not be held responsible for use of the siren audio and or radio. At 12:00 ... My second frisco 4004 video, One time i have my first frisco 4004 over on Elm street over the water tower were we hear the female ... felt recreating dial tones on my vrc7 memory mapper so here you go i guess. TONES IN ORDER: - dial - busy - 1 - 2 - 3 - A - 4 ... Used an Arcom RC-210 with a relay connected to a pin I/O port. Then from there, made a macro to play the message, then turn on ... Step by step instructions on how to create a