W2ENY's USB CT-17 CIV Interface |
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It is called virtual because much of the serial COM port functionality is achieved with software. The radios that can be computer controlled have a CAT interface (computer-aided transceiver). A related term is CI-V (Communication Interface v5) which is an Icom standard that defines the messages the radio will respond to. For simultaneous USB and CI-V (REMOTE jack) CAT control keeping both band data for microHAM products, and spectrum screen replication in logger use these settings: USB Serial Function = CI-V. CI-V Baud Rate = 19200. CI-V Address = default CI-V address of the radio. CI-V Transceive = OFF - can be ON if logger is not confused by automated data.
The old CT-17 interface connected to a standard RS-232 PC comm port and controlled up to four different Icom devices from a single PC. Icom's CT-17 interface was legacy serial RS-232 and is not a pretty solution these days with 9 to 25 pin converters and USB to 232 adapters.
- Receive data and transmit Icom commands from/to the IC7700 via the CI-V serial buss line, at 19200 baud. Means this is done) Transmit whatever Icom command is needed from a command table in the code. (√) Test the rig for split VFO’s (√).
- IC-7700 latest firmware updates. CI-V Upgrade Brochure.pdf 199.9 KB IP Control Brochure. RS-BA1 IP Remote Control Software.
This interface is a true USB transceiver interfacing to the Icom CIV standard (remote connector on your radio). There's no conversion to or from RS-232 and provides CIV logic for Icom transceivers (up to 4) as did the original Icom CT-17. Interface connects, operates and is powered by the computer USB port, you provide 4 connectors for radios and enclosure.
This is fully compatible with popular contesting software (CT, WriteLog, TRLog, DX4WIN, etc.) and many 3rd party applications.
This package includes (from the picture above): |
| On the CDROM: - The Icom CT-17 manual - The Icom 'Communication Interface Reference Manual' - (a programmers guide) - Software specific to Icom radios - Ham Radio Deluxe - My own quick start instructions and many pages of software docs - Many other 3rd Party Programs |
USB Computer interface works with ALL Icom radios having a 'REMOTE' rear connector: IC-7000 703, 706 (all models), 718, 735, 736, 738, 745, 746, 746PRO, 756, 756PRO, 756PRO-II, 756PRO-III, 751, 761, 765, 775, 781, 7100, 7200, 7300, 7400, 7600, 7700, 7800, 820, 821, 910. |
Add an external S-meter on any Icom amateur radio transceiver that has a CI-V control port.
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About this project
This circuit uses an Arduino Uno or Nano to send a CI-V command to an Icom radio to ask for signal information, read the answer, convert it and display it on an analog output, where you can connect an analog (Arsonval) S-meter.
It is powered by the Antenna Tuner port on the Icom radio. If your Icom does not have a tuner port, you can use any other port or connector that provides a +12V output (at least 200 mA). An external DC power source can also be used.
Ci V Icom Software For Use With 7700 Wireless
If you don't have an Antenna Tuner connector, you can use a PC computer power supply connector, and trim it with cutters to fit the Icom tuner connector.
This project is designed for an Icom IC-7000 transceiver, but it can be adapted to any Icom radio with a CI-V port.
You can use the CI-V '00' universal address on some Icom radios, making this converter compatible with any Icom radio, without changing the CI-V address in the code.
Ferrites are installed on input & output cables to eliminate RF induction. The +12 V DC to the S-meter is not necessary; it could be used to power meter backlight or any other optional features.
The 10 k ohms potentiometer is used to attenuate the signal output (which is too high for most analog meters) and calibrate the analog meter to get a full scale reading with a powerful local signal (+60 dB).
Some other similar projects, using Arduino as a CI-V interface:
https://www.qsl.net/on7eq/en/ Click on 'projects' button
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Author
ddufault
Ci V Icom Software For Use With 7700 Printer
- 2 projects
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Ci V Icom Software For Use With 7700 Drivers
Additional contributors
Ci V Icom Software For Use With 7700 Sewing Machine
- The main idea, communication between arduino & ci-v port. by Luc ON7DQ
Published on
July 19, 2019Members who respect this project
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