microHAM: DIGI KEYER - Specifications

Technical Specifications:

USB: USB 1.1 and 2.0 compatible

Power consumption: USB side - less than 100mA
Transceiver side less than 200mA at 13.5V (max. 16V)

Radio Port: RxD, TxD, max. 57,600 Baud
- levels: TTL, inverted TTL, open collector bus, RS232

CW: open collector, max 30V/400mA

FSK: open collector, max 30V/400mA
- supported 5/6/7/8bit data length, 1/1.5/2 stop bit, up to 300 Baud

PTT: open collector, max 30V/100mA

PA PTT: selectable by jumper
- open collector, max. 48V/1.5A
- relay contact, max. 125VAC/2A 60VDC/2A

LNA PTT: selectable by jumper
- open collector, max. 48V/1.5A
- relay contact, max. 125VAC/2A 60VDC/2A

Audio Out:
- single channel (left)
- output impedance:600 Ohm
- output level: 4V p-p (max)
- AC coupled
- 3dB bandwidth: 0.2 - 6KHz typical
- Sampling rates: 32000, 44100, and 48000 Hz

Audio In:
- dual channel (stereo)
- input impedance: 50k Ohm
- input level: 4V p-p (max)
- AC coupled
- 3dB bandwidth: 0.2 - 6KHz typical
- Sampling rates: 8000, 11025, 16000, 22050, 32000, 44100, and 48000 Hz

Dimensions: W 175mm (6.89") x H 44mm (1.73") x D 85mm (3.35")

Weight: 1100g (2.4 lbs.)

Requirements:

Minimum - 800 MHz IBM PC compatible computer with Windows 2000, 128 MB RAM, CD-ROM, USB1.1 port, Transceiver, logger or control software (any). Dual receiver operation requires Windows XP

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 G3 or better and OS 10.0 or later with MacLoggerDX from Dog Park Software, Ltd.

Note: Windows 98 (all versions) are no longer supported. Windows XP is required for dual channel receive applications.

Front panel

1 - Power
    Indicates when interface is receiving power

2 - TX
    Transmit audio level (to radio)

3 - CW/FSK
     RED = CW, GREEN = FSK.
     LED flashes when CW or FSK output is active.

4 - SQL
    Indicates status of receiver squelch

5 - PTT
     LED lights when PTT

6 - RX #2
     Receive audio level for second (Sub, Aux, etc.) receiver

7 - RX #1
     Receive audio level for main receiver

Rear panel

1 - PA PTT
     PTT output for Power Amplifier. RCA jack

2 - LNA PTT
     PTT output for bypassing a Low Noise Amplifier (Receiver preamplifier). RCA jack

3 - RADIO
     DB15F connector for radio interconnections.

4 - REMOTE
     MiniDIN6 for PS/2 keyboard or PS/2 keypad.

5 - USB
     USB B connector for computer connection.

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