OPTO-IFMKII Interface
The OPTO-IFMKII is into it's sixth year of total reliability. A fully isolated interface for digital 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, and not a reported failure to date. It is very useful for portable work, as there is no requirement for any dc supply if vox is not being used. As can be seen the unit is built on a high quality silk screened circuit board, and housed in an ABS 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-IFMKII with a USB/Serial converter than a USB port interface. In fact as mentioned you don't 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.
Want to set up an RF Gateway for CQ100, then this is the unit. See what users think of the OPTO-IFMKII, then take a look here http://www.eham.net/reviews/detail/3790
The units features.
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Compact size ABS case 140mm wide x 110mm deep x 35mm high
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High quality silk screened 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
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LED monitoring of the VOX ptt
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Front panel switching between vox, and serial port ptt
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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
Note that the 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 out OPTO-IF Kit
