USB Micro2R

USB Micro2R

Price: $485.00

Model: MH-u2R
Manufacturer: microHAM

Click on the arrow to drop down tabs

Micro2R Features

micro2R diagram


  • advanced (USB) or classic (LPT) control
  • proven microHAM Control Protocol
  • “Band Data” or Antenna Relay ports controlled by logger
  • two UART compatible FSK outputs
  • single foot switch operation
  • “selected transmitter” output for station automation
  • compatible with most standard Windows based programs
  • optically isolated USB and LPT inputs
  • compatible with LPT interface (CT, TR, NA)


  • intelligent keying lockouts for both radios
  • hardware lockout for ”last one wins” or ”first one wins”
  • programmable PTT Lead and Lag adjustable in 1ms steps
  • separately sequenced keying outputs for LNA bypass
  • separate PTT per transceiver with automatic focus control
  • support for VOX and CAT T/R switching command


  • integrated K1EL WinKey2™ with front panel speed control
  • front panel speed control.
  • nine (9) memories with auto-numbering
  • PS/2 keyboard/keypad support for direct CW with type ahead
  • PS/2 keyboard/keypad support for CW message playback
  • PS/2 keyboard/keypad CW works without computer connection


  • front panel headset jacks
  • selectable electret bias (+8V) on mic tip or ring
  • wide range preamplifier supports both dynamic and electret mics
  • microphone switching allows “through the soundcard” or “soundcard override” operation
  • transceiver PTT input for correct headphone switching in VOX
  • nine (9) memory software DVK


  • front panel headphone jack
  • passive receive audio with selectable transformer isolation
  • support for second sound card for audio review
  • front panel control knob for left/right audio ”mix” feature
  • dedicated controls for ”classic” audio control (R1/BOTH/R2)


  • support for dual dual BCD band data or antenna relay outputs
  • integrated chokes and filters for maximum RFI immunity
  • Metal/Aluminum case, powder coated and silk screened
  • no time limit firmware/software upgrade on-line


USB: USB 2.0 Full speed, USB 1.1 compatible

Power consumption:
USB – less than 100mA
Power supply – less than 250mA at 13.8V (max. 16V)

CW: 2 x open collector, max 30V/400mA

PTT: 2 x open collector, max 30V/400mA

PTT IN: 2 x active when closed to ground, max +25VDC only

ACC: TTL levels – 4mA Max.

LPT port: optically isolated, load less than 1 mA at 5V.

FSK: 2 x open collector, max 30V/400mA

FOCUS: open collector, max 30V/400mA – low = R1 selected

Foot Switch: active when closed to ground, max load: 1 mA at 5V

Phones: stereo output for headphones, 32 Ohm nominal

MIC: dynamic/electret selectable – max input 500mV
3dB bandwidth: 200 Hz – 6KHz typical
selectable 8V bias – 1mA max, off/tip/ring

SC Out: AC coupled input from soundcard – 32-600 Ohm, 4V p-p max.

SC In: AC coupled output to soundcard mic – 600 Ohm typ, 500mV P-P
3dB bandwidth: 200 Hz – 6KHz typical

Dimensions: W 232mm (9.125″) x H 44mm (1.75″) x D 101mm (4.125″)

Weight: 1.3 kg (1.875 lbs.)


Minimum – 1.6 GHz IBM PC compatible computer with Windows 2000, 512 MB RAM, Sound card, CD-ROM, USB1.1 port, Transceiver (x2), logger or control software (any)

Recommended – 1.6 GHz PC with Windows XP or higher, 1 GB RAM, Sound Card, CD-ROM, USB2.0 port, Transceiver with computer port (x2), CW paddle, PS/2 keypad, logger or control software (any)

Note: Windows 98 (all versions) is not supported.

select one of the brands below to view the full product list