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MICROHAM - MICRO-KEYER3 - microHAM III

MICRO-KEYER3

New product

Amateur Radio first 24-bit USB Audio Interface

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Your current price:
385,00 €
Members of R.E.E.C & a sponsored club:
346,50 €

385,00 €


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More info

micro KEYER III™ is the world first and the only amateur radio USB interface featuring high dynamic range, 24-bit audio processing chain on all signal stages.

It is themost powerful single radio All-In-One USB interface and the only USB interface to fully support digital and voice operation including microphone switching in one box.

With a single USB port, micro KEYER III™ works with any Windows-based logging or control program for CW, Voice, FSK and Digital operation (RTTY, FT8, WSJT, PSK31, SSTV, etc.). micro KEYER III™ works also on Linux using DJ5QV's mhuxd Router, and macOS apps natively supporting micro KEYER III™.

micro KEYER III™ includes a CAT, radio control interface that supports all common standards (RS-232, CI-V, Kenwood and Yaesu TTL), a powerful CW memory keyer using genuine K1EL's WinKey, a Digital Voice Keyer for SSB, two channel audio processing for transceivers with dual receivers, automatic microphone selection, and a buffer/sequencer for amplifier or LNA control.

Compared to 16-bit audio interfaces, or to any USB enabled transceiver, including flagship transceivers from well known manufacturers (as of autumn 2018), unique 24-bit USB audio processing in the micro KEYER III™ provides advantage in higher dynamic range (>105dB) and lower noise floor, preserving transceiver performance also for audio processing on computer (digital modes), otherwise limited by 16-bit USB audio signal chain.


Please see an introductory a independent measurement done by Wofgang OE1MWW:

http://members.chello.at/~oe1mww/sound_card_check/

Features

Features and functions printed in orange color are new compared to MKII

General:

  • Single USB connection to computer

  • Stand alone operation

  • Complete "Computer ↔ Transceiver ↔ Amplifier" galvanic isolation

  • Internal 24-bit USB Audio

  • Standard USB Audio Class device – no custom driver required

  • Superior asynchronous USB audio data transfer

  • Internal low phase noise LO: -145dBc/Hz @1kHz

  • High dynamic range: 110 dB typical, 105 dB minimum

  • Separate and simultaneously operating Line and Microphone USB Audio Inputs

  • Extremely low noise floor: as low as <10µV effective

  • Additional Optical S/PDIF audio input/output ports

  • iLINK port for digital connection to iLINK enabled devices
    (Station Master, Station Master DeLuxe, SMΩRF) for frequency and data exchange
  • Real-Time audio levels monitoring on built-in color OLED display

  • Silent switching of all audio signals without relays

  • DSP for all analog signals, including microphone inputs


Radio control (CAT):

  • Two, managed (CAT protocol controlled) CAT ports for connecting two loggers or control programs at the same time

  • Up to 57600 Baud with handshake support

  • Integrated level converter for CI-V, FIF-232, IF-232, or RS-232 levels

  • Supports most Elecraft, Icom, Kenwood, Ten-Tec, Yaesu and other radios

  • Simplex SDR receiver tracking feature (Kenwood and Icom protocol supported)

Voice (SSB/AM/FM):

  • Two microphone support for headset and hand/desktop mic

  • Fixed or automatic microphone selection

  • Menu driven settings, no jumpers and trimmers

  • Individually adjustable Gain, Bias, Tone Emphasis and ALC supports seamless use of electret and dynamic microphones combinations

  • Individual “Voice” monitor loop-back for “TX Audio recording”

  • Digital Voice Keyer with nine messages per bank, up to 120 seconds each, unlimited number of banks



Digital (FSK/AFSK):

  • 24-bit, high dynamic range, very low distortion analog inputs

  • Dual channel receive capability

  • Ultra low noise floor for optimal decode level

  • Front panel transmit and receive level control knob

  • Separate Data PTT output for digital audio modes operation (AFSK) with microphone muting

  • True analog feel, low latency RTTY tuning indicator (crossed ellipses)

  • UART based, zero jitter FSK output

  • Re-sampled standard 45.0 Baud rate for accurate 45.45 Baud HAM RTTY speed

  • Intelligent diddle stuffing for no random gaps between characters

  • Supports data codes with 5/6/7/8 data bits and 1/1.5/2 stop bits

  • Sample accurate support for audio based P-FSK keying

  • Unique, hot switch protected FSK keying

  • Adjustable FSK keying polarity

  • PS/2 keyboard or keypad support for stand alone FSK transmission with type ahead function

  • Nine (9) user programmable FSK memories

CW:

  • Genuine WinKey™ v3 chip

  • Front panel speed knob

  • Selectable side tone for external speaker with "paddle side tone only" function

  • Individual side tone for “TX Audio recording”

  • Sample accurate support for audio based Q-CW keying

  • PS/2 keyboard or keypad support for stand alone CW “memory keyer” with type ahead function

  • Nine (9) user programmable memories

  • Logger independent contest auto-numbering (Field Day style)


Other:

  • 1 Watt amplifier for monitor/sidetone

  • Main OLED display

  • Isolated, high voltage optoMOS based PA and LNA keying outputs, no relays

  • CI-V output for controlling CI-V compatible Power Amplifiers or other accessories

  • Serial output for controlling stepper motor based antennas

  • User presets to recall all parameters for different logger or control programs

  • Optimized for future “Remote Control Suite” connection

  • Huge filtering for maximum RFI immunity

  • Metal/Aluminum case, powder coated and silk screened

  • Free, no time limit firmware/software upgrades via Internet

 

Specifications



USB: USB 2.0 Full speed, isolated
FTDI USB – serial

UAC1 asynchronous downstream, max. 24-bit/48kHz

asynchronous/synchronous upstream, max. 24-bit/96kHz

Power consumption: USB – less than 10mA

Power supply – max. 450mA @ 13.8VDC (max.16VDC)

Radio Port: RxD, TxD – max. 57600 Baud, RTS/CTS handshake supported

Levels: FIF-232, IF-232, CI-V, RS-232

Aux Port: TTL – RxD, TxD, no handshake – max. 19200 Baud

CI-V Port: open collector bus – max. 19200 Baud

CW: open collector, max 30V/400mA

FSK: open collector, max 30V/400mA

5/6/7 bit data, 1/1.5/2 stop bits, up to 300 Baud

PTT1: open collector, max 30V/400mA

PTT2: open collector, max 30V/400mA

PA PTT: optoMOS, max. 300VAC/VDC @ 0.1A

LNA PTT: optoMOS, max. 300VAC/VDC @ 0.1A

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

PTT IN: active when closed to ground, max load: 1 mA at 5V

Monitor: Mono, 1 Watt @ 4 Ohm speaker

Audio Line Output: 600 Ohm, max. 1.5Vp-p

AC coupled

Audio Mic Output: 600 Ohm, max. 370mVp-p

AC coupled

Audio Line In: 10K Ohm, max 5Vp-p

dual channel (Stereo)

Dynamic Range: min. 105dBA, typ. 110dBA

THD: 0.0009%

IMD+Noise: 0.004%
AC coupled

Dimensions: W 232mm (9.125") x H 44mm (1.73") x D 105mm (4.125")

Weight: 1.3 kg (1.875 lbs.)

Package contains: 
micro KEYER III™, USB A-B cable 2m (6.5ft) long, and RJ45 to Foster 8 male microphone adapter.
micro KEYER III™ is the most powerful single radio All-In-One USB interface and the only USB interface to fully support voice operation including microphone switching. With an single USB port, microKEYER III™ works with any Windows-based logging or control program for CW, voice, FSK and digital (RTTY, PSK31, SSTV, OLIVIA, MFSK, WSJT, etc.) operation. micro KEYER III™ includes a radio control interface that supports all standards (RS-232, CI-V, Kenwood and Yaesu TTL), a powerful CW memory keyer using K1EL's WinKey, a Digital Voice Keyer, two channel audio for transceivers with dual receivers, automatic microphone selection, and a buffer/sequencer for amplifier or LNA control.

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MICROHAM - MICRO-KEYER3 - microHAM III

MICROHAM - MICRO-KEYER3 - microHAM III

Amateur Radio first 24-bit USB Audio Interface