OPTO-IFMKIII Interface
No Com Or USB Port Required For PTT
The OPTO-IFMKIII is a new variation of the MKII data, or digital mode interface. Built within an extruded aluminium case, it is more compact than the MKII whilst offering the same facilities. A fully isolated interface for digital or data modes. It has it's own vox ptt, for those whom have no serial ports free on their PC's, as well as the normal RTS/DTR com port ptt. A truly universal isolated interface for all radio's, many in use for PSK31, RTTY, MFSK, SSTV, etc etc. It is very useful for portable work, as there is no requirement for any dc supply if vox is not being used. The unit is built on a high quality circuit board, and housed in a fully screened aluminium case. It is simplicity in itself to wire up and run with any of the data mode software(s) around. We also have a voice vox version for voip internet use. One of the claims made by manufacturers of USB interfaces is they make for less cable clutter. Well don't be misled by that as they generally don't. For example whether you use a serial com port or usb port you still need a cable. Whether you use a non usb interface or a usb one, you still require cables to the radio. If the usb interface has it's own audio built in, then you are saving a cable going to your pc soundcard...wow :-). If you have no com ports available then it is still more cost effective to buy an OPTO-IFMKIII with a USB/Serial converter than a USB port interface. In fact as mentioned you don't even need a com port or USB port with this interface, you can use the data vox instead !, which is ideal if you intend using the interface in different locations, or portable etc etc. This unit was originally developed for use in data vox mode with the Asus PC900 notebook and IC706MKIIG as a fully portable data mode station running MixW software.
Want to set up an RF Gateway for CQ100, then this is the unit.
The units features.
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Compact size extruded aluminium
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High quality fibre glass printed circuit board
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Fully isolated using datacomms quality transformers
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Option of opto isolator or reed relay isolated ptt switching via Com Port RTS
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Opto coupler cw key output for use with multimode softwares via Com Port DTR
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Choice of using the CW output for FSK RTTY keying with the serial port.
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LED monitoring of the VOX ptt
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Front panel switching choice between data vox, or serial port ptt unlike signalink which only has data vox
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Adjustable vox sensitivity
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Low current requirement 12V, or 9V battery supply for vox
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Supplied with all PC cables 4 foot or 1219 mm in length
Left to right the rear apron connectors are.
TX Audio. Line Out. RX Audio. Line In. PTT. CW Key. Com Port. PSU 9 / 12V
We stock a USB/Serial port adaptor for those with no serial ports on their pc, and also a small USB external soundcard which works very well with all data mode software tried. Email if you need further information.
Note that the 12 V regulated 50mA dc psu is not required when you are not using vox.
For other interfaces take a look at our digital mode interfaces pages
Or If you wish to build your own, or have a club project, then take a look at our OPTO-IF Kit
Purchase via Paypal or order by Cheque . Please contact us if paying by cheque for details.
OPTO-IFMKIII Interface
