microHAM : microKEYER - Specifications

Technical Specifications:

USB: USB 2.0 Full speed , USB 1.1 compatible

Power consumption: USB side - up to 100mA
Transceiver side up to 200mA at 13.8V (max. 16V)

Radio Port: RXD, TXD, (RTS, CTS) max. 57600Bd
- 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 Bd

PTT1: open collector, max 30V/100mA

PTT2: open collector, max 30V/400mA

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

Foot Switch: input, active when closed to ground, max. 5 mA

Radio OUT: 600 Ohm, max 1Vpp, DC coupled
3dB bandwidth: 0.2 - 6KHz typically
Insertion loss: 3dB typically

Computer LINE OUT: 600 Ohm, max 1Vpp, DC coupled
3dB bandwidth: 0.2 - 6KHz typically
Insertion loss: 9dB typically (6dB attenuator)

Computer MIC IN: signal and signal ground are directly switched to the MICROPHONE input (jumper selectable preamplifier for dynamic microphones)

Radio MIC IN: signal and signal ground are directly switched to the MICROPHONE input. All others wires are routed from RJ45 to the radio microphone input. Microphone works with all his functions as if were plugged straight to the radio.

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

Weight: 1100g (2.43lbs)

Requirements:

Minimum - 800 MHz IBM PC compatible computer with Windows 2000, 128 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, Sound Card, CD-ROM, USB2.0 port, Transceiver with computer port, CW paddle, PS/2 keypad, logger or control software (any)

Also Supported - Apple G3 or later and OS-X 10.0 or later with MacLoggerDX from Dog Park Software, Ltd.

Note: Windows 98 (all versions) are no longer supported.

Front panel

1 - SPEED
CW Keyer Speed knob. Ranges (MIN, MAX) are defined by software

2 - CW/FSK
RED color CW, GREEN color FSK.
LED flashing when CW or FSK output is active.

3 - PTT1/PTT2
RED color PTT1, GREEN color PTT2, YELLOW when PTT1 + PTT2
LED light when PTT1 or PTT2 is closed.

4 - COMPUTER
Driving level knob for computer sound card LINE IN line

5 - RADIO
Driving level knob for radio AF IN or MIC input

Rear panel

1 - RADIO
DB37F connector for radio interconnections. Detailed description.

2 - RE/SS
Output keying mode switch for PA output.
RE - Relay contact
SS - Transistor collector

3 - PA PTT
PTT output for Power Amplifier. Output depends on RE/SS switch position.
RCA jack
TIP - Signal
SHELL - GND

4 - REMOTE
MiniDIN6 for PS/2 keyboard or PS/2 keypad.
Second function of this connector is to provide an interface for future SO2R Extension box

5 - USB
USB B connector for computer connection. Standard USB A-B cable can be plugged here.

6 - MIC EXT
3.5mm (1/8") connector for external microphone input.
TIP - Microphone input
RING - NC
SHELL - Microphone Ground
Note: When is plugged, RJ45 microphone input is muted

7 - MIC
RJ45 jack for microphone. If your original radio microphone ends with connector different from RJ45 plug, use adapter from cable set.

8 - LINE IN
3.5mm (1/8") phono jack for sound card Line In
TIP - Signal
RING - NC
SHELL - Signal Ground

9 - LINE OUT
3.5mm (1/8") connector for sound card Line Out
TIP - Signal
RING - NC
SHELL - Signal Ground

10 - MIC IN
3.5mm (1/8") connector for sound card Mic In
TIP - Signal
SHELL - Signal Ground

11 - PADDLE
6.3mm (1/4") stereo female for paddle input.
TIP - DIT
RING - DAH
SHELL - GND
Paddle can be swapped by software

12 - FOOTSWITCH
RCA foot switch input. Active when is closed to ground.
TIP - Signal
SHELL - GND

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