microHAM : Interface Comparison

MK2R vs. EZMaster

This table compares the features of micro KEYER 2R (MK2R�), micro KEYER 2R Plus (MK2R+�) and EZMaster�. The table does not include other SO2R controllers as they are not in the same class. Those features/functions that are the same in these three products are omitted from the table. Information on EZMaster� has been taken from Command Reference version 01.06 and User's Guide version 01.05.

	MK2R+	MK2R	EZMaster
RADIO CONTROL:
Control both radios over USB	YES	YES	*
DC isolation between USB and radio control ports	YES	YES	NO
Handshake control signals for both radios	YES	YES	NO
Open collector CI-V bus	YES	YES	NO
CW:
SO2R CW keying over USB	YES	YES	*
Integrated WinKey	WinKeyer2	WinKeyer2	WinKey v10
Internal CW keyer memories	9 x 50 character	9 x 50 character	NO
Software independent contest auto-numbering	YES	YES	NO
CW keyboard with type ahead	YES	YES	NO
Paddle only side tone	YES	YES	NO
PTT:
Independent digital Mode PTT	YES	YES	NO
Hot switch free VOX, QSK and CAT command keying	YES	YES	NO
Intelligent lockouts for both radios: Same Band lockout, Transmit Inhibit, Busy Inhibit	YES	YES	NO
Hardware support for "last one wins" or "first one wins"	YES	YES	NO
Independent PTT sequencing for LNA or RX antennas	YES	YES	NO
Relay isolated outputs for negative and high voltage amplifier relays	YES	YES	NO
Separate keying inhibit inputs for each radio	YES	YES	NO
DIGITAL:
True FSK keying for both radios	YES	YES	One radio
Automatic �microphone muting� for AFSK and digital modes	YES	YES	NO
User configurable audio decoding (VFO A/B)	YES	YES	NO
Low noise preamplifiers for better weak signal decoding	YES	YES	NO
Front panel receive level controls for each each channel	YES	YES	NO
Front panel transmit level controls for each radio	YES	YES	NO
High performance, low noise floor USB sound core	YES	NO	NO
Separate USB sound codec for digital modes	YES	NO	NO
User programmable FSK memories	9 x 50 character	9 x 50 character	NO
FSK keyboard with type ahead and diddle	YES	YES	NO
VOICE (SSB/AM/FM):
Digital Voice Keyer	120 second per message	120 second per message	75 second total
Number of Digital Voice Keyer messages	unlimited	unlimited	7
Retains all control functions of Radio1 microphone	YES	YES	NO
Preamplifier for dynamic mic with DVK and �live� mic	YES	YES	NO
Preamplifiers for using dynamic mics with Icom radios	YES	YES	NO
Separate, customizable microphone routing for each operation state (transmitting with VOX / computer PTT / footswitch) for each radio	YES	YES	NO
Direct to radio or through sound card microphone routing	YES	YES	NO
HEADPHONE AUDIO:
Full control over Main/Sub receiver audio	YES	YES	NO
Second sound card output to headphones	YES	YES	NO
Hardware support for user defined "scenarios" (weak pileup, strong pileup, S&P, etc ...)	YES	YES	*
Front panel left/right audio "mix" control	YES	YES	NO
Ability to record headphone audio (WYH - What You Hear)	YES	YES	NO
User selectable audio recording of radio outputs (VFO A/B)	YES	YES	NO
Front panel record level controls for each channel	YES	YES	NO
Twin Speaker	NO	NO	YES
ANTENNA OUTPUT:
Antenna Relay Output	optional	optional	YES
Output Relays	optional	optional	optional
Radio Band Decoder	YES	YES	*
User Configurable Relay Outputs	YES	YES	YES
Pulse Relay Output	NO	NO	YES
User Defined Pulse Length	NO	NO	YES
OTHER:
Optimized operation per radio with dissimilar modes	YES	YES	NO
20 Character LCD Display	NO	NO	YES
Real Time Clock	NO	NO	YES

* requires specific application software (so far Win-Test only)