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Soundcard interfaces are used primarily to isolate the PC from the transceiver. This reduces the risk of a ground loop, preventing hum and noise on the modulation. Besides the pure isolation of AF signals some of these devices offer more functions like level adjustment, PTT control, CW keying and a CAT interface as well.
The more recent developments use the USB interface from the PC instead of the serial port for control functions.
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Compact USB Interface with galvanic isolation between Trx and computer. Suitable cables available for Icom, Kenwood and Yaesu. CAT plus FSK, PTT/CW keying with virtual serial COM port. More... |
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microKEYER-2R/2R+ Universal controller for two radios. The microHAM device with the most fucntions! Ideal for contest operation with two radios at the same time (SO2R) or for everybody who wishes to control two (even different) radios at the same time. Supports all modes: Phone, CW, digital modes. The microKEYER-2R+ has an internal sound card integrated, the microKEYER-2R uses the built-in sound card of your computer. More... |
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microKEYER-II Controller with internal USB sound card. The microKEYER-II supports the flexible selection of the audio source (microphone, sound card) depending on mode. Ideal for users who wish to use all modes including phone, CW or digital modes, and who wish to have a separate high level sound card for digital modes. Useful for day to day operations as well for the contest, all modes. More... |
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USB-II Controller which supports all basic functions like CAT, PTT and CW keying as well as audio from the computer sound card. Like all microHAM interfaces of course with galvanic isolation of all signals. Excellent price/performance ratio, regardless if used during the contest or for the daily operations with a computer log at home. More... |
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USB-III New Like USB-II, plus built-in sound card. Only one USB cable from interface to your computer, better sound quality. The computer soundcard remains free for other purposes, no more swaping cables when using the radio. More... |
| microKEYER-2R+ | microKEYER-2R | microKEYER-2 | microKEYER | Digikeyer | USB-2 | |
|---|---|---|---|---|---|---|
| USB connection | Yes | Yes | Yes | Yes | Yes | Yes |
| Galvanic isolation of all connections | Yes | Yes | Yes | Yes | Yes | Yes |
| CAT/CI-V Interface | Yes | Yes | Yes | Yes | Yes | Yes |
| PTT & CW keying | Yes | Yes | Yes | Yes | Yes | Yes |
| True FSK keying | Yes | Yes | Yes | Yes | Yes | Yes * |
| Connector for opt. PS/2 keyboard | Yes | Yes | Yes | Yes | Yes | No |
| CW keying with WinKey chip | Yes | Yes | Yes | Yes | No | No |
| Audio source routing (micro/soundcard) | Yes | Yes | Yes | Yes | No | No |
| Supports two radios | Yes | Yes | No | No | No | No |
| Internal USB soundcard | Yes | No | Yes | No | Yes | No |
| Multifunction LC display | No | No | Yes | No | No | No |
| Required radio cable type | 2x DB37-xxx | 2x DB37-xxx | 1x DB37-xxx | 1x DB37-xxx | 1x DB15-xxx | 1x DB15-xxx |
* The USB-2 interface supports FSK for example with the EXTFSK software by MMTTY (free).
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RigBlaster Pro Interface with built in level converter (CAT Interface) for nearly all transceivers. Universal cable for the microphone jack (8 pin round Foster, and RJ45) included. Comfortable automatic selection of phone or digital mode operation. PTT keying by serial interface of the computer. Power supply included. More... RigBlaster Plus Interface for automated operations with phone or digital modes Universal cable for the microphone jack (8 pin round Foster, and RJ45) included. PTT keying by serial interface of the computer. Power supply included. More... RigBlaster Nomic Basic interface which is useful for very affordable operations of an Echolink gateway or for portable uses. PTT keying with serial interface of the computer. No external power suppyl required. More... |
Besides the above mentioned sound and CAT interfaces we offer a few pure CAT interfaces, i.e. devices which allow only the control of the CAT functions by the computer.
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