microHAM: Basic USB Interface ...

Technical Specifications:

USB: USB 2.0 Full speed, USB 1.1 compatible

Power Consumption: USB < 200mA, Transceiver, < 100mA @ 13.8V.

Radio Port: RxD, TxD, max. 57600 Baud

Levels: jumper selectable TTL, inverted TTL, open collector bus or RS-232

CW: open collector, driven from DTR or audio detector, max 30V/400mA

PTT: open collector, driven from RTS, max 30V/400mA

FSK: open collector, driven from DTR (MMTTY with EXTFSK) or
audio detector (FLDIGI/pseudo-FSK)

SQL: input, closed to ground or high (two inputs) to activate. Wired to CTS

Audio Out (left):
     Output Level: 1.3V p-p max.
     Response: 100 Hz - 10 KHz +1dB/-3dB
     Second Harmonic: -80 dB (typical)
     Third Harmonic: -70 dB (typical)
     D/A Sample rates: 32000, 44100, 48000 Hz

Audio Out (right):
Internal Pseudo-FSK/QSK CW detector.
drives CW and FSK outputs

Audio In (left):
     Input Level: 4 p-p max.
     Response: 300 Hz - 3 KHz +/- .5 dB (typical)
     Absolute Noise Floor: -90 dB @ 600 Ohms
     Dynamic Range: 87 dB (typical)
     D/A Sample rates: 8000, 11025, 16000, 22050, 32000, 44100, 48000 Hz

Dimensions: W 103mm (4 1/8") x H 28mm (1 1/8") x D 101mm (4")

Weight: 1100 g (2.4 lbs.)

Under Microsoft Windows, the microHAM USB Device Router can create/map the USB III to separate virtual serial ports for control, CW, and PTT. With OS X and LINUX the control, software CW and PTT outputs are provided on a single TTY device using native drivers for that operating system. The USB soundcard uses native drivers for each operating system.

The most recent drivers can always be download from our downloads page

Requirements:

Minimum - 800 MHz IBM PC compatible computer with Windows 2000, 64 MB RAM, Sound card, CD-ROM, USB1.1 port, Transceiver, logger or control software (any)

Recommended - 1.6 GHz PC with Windows XP or higher, 256MB RAM, CD-ROM, USB2.0 port, Transceiver with computer port, logger or control software (any)

Also Supported - Apple G4 or later with OS X 10.4 or later and current LINUX distributions.

Note: Windows 98 (any version) is not supported.

webmaster: W4TV