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Modem
Circuits
Modems: #'s - G
HZ -
Last Updated on:
Wednesday, June 02, 2021 01:44 PM |
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Links to electronic circuits, electronic schematics and designs for engineers,
hobbyists, students & inventors: -
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HamComm modem interface - I have recently done quite a lot of
work on RTTY, using the HamComm program and been so impressed that I made
a PCB to support the program. I think that I will continue to use the
software, so I have registered it with the programs author: W. F.
Schroeder, DL5YEC has obviosly put so much work into it. The program will
send and receive RTTY up to 300 bauds as well as sending and receiving CW.
I am very impressed with the programs ability to....[Harry Lythall] |
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KD2BD Pacsat ModE - M - (electronic circuit added 4/05)
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Power line modem for automatic meters - The ST7538P,
incorporates, a Frequency Shifting Key (FSK), modulation / demodulation
circuitry and a very low distortion, high-current power line
driver....While meeting the requirements set by international regulation
bodies, such as CENELEC for Electro Magnetic Compatibility, the ST7538
offers a broad....(application note added 6/07) |
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ST7538P : Power line modem for automatic meters - The ST7538P,
incorporates, a Frequency Shifting Key (FSK), modulation / demodulation
circuitry and a very low distortion, high-current power line driver....While
meeting the requirements set by international regulation bodies, such as
CENELEC for Electro Magnetic Compatibility, the ST7538....(application note
added 6/07) |
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Supervisory circuit monitors-modem connection - 04/09/98 EDN-Design
Ideas....In telemetry or security applications in which a modem connection
automatically establishes itself between two systems, a failure in one of
the systems can interrupt the data exchange while the connection remains
established until someone physically breaks the line or restarts the failed
system. This situation....several circuits included, scroll the find this
one....[Design Idea by J Bas�lio Sim�es and Jorge Landeck, Instrumentation
Center of the University of Coimbra, Coimbra, Portugal] |
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The KD2BD Pacsat ModE - M - (electronic circuit added 4/05) |
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Modems: #'s - G
HZ -
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