microHAM MK2R Manual page 5

Digital (FSK/AFSK/PSK31):
six transformers for DC isolation of sound card and radios
•
selectable routing of radio outputs (VFO A/B) for each sound card channel
•
low noise amplifiers for improved weak signal decoding
•
front panel controls to optimize levels for each sound card channel
•
front panel controls to optimize mic drive for each radio
•
integrated high performance, low noise floor USB sound core (MK2R+ only)
•
separate USB sound codec for digital modes (MK2R+ only)
•
separate digital audio drive for each radio
•
selectable sound card channel output/steering for digital audio
•
application specific mono/stereo signal source handling
•
dual FSK output
•
supports data codes with 5/6/7/8 data bits and 1/1.5/2 stop bits
•
unique, hot switch protected FSK keying
•
separate PTT output for digital audio mode operation with microphone muting
•
nine (9) user programmable memories (FSK)
•
supports PS/2 keyboard FSK transmission with type ahead and diddle function
•
supports PS/2 keyboard or keypad for FSK message playback and control
•
PS/2 keyboard/keypad FSK works without computer connection
•
Voice (SSB/AM/FM):
front panel headset jacks
•
rear panel hand/desktop microphone jack
•
front panel selection of connected microphones
•
supports all microphone control functions for Radio1
•
selectable preamplifier supports dynamic microphones with computer interface
•
selectable preamplifier for using dynamic microphones with Icom radios
•
customizable microphone routing for each state (VOX / computer PTT / foot switch) by radio
•
customizable microphone routing for operation style (direct to radio / through sound card)
•
Digital Voice Keyer with nine messages up to 120 seconds line and unlimited "banks"
•
Headphone (Receive) Audio:
front panel headphones jacks, rear panel external speaker jack
•
unique "multi-source" signal handling
•
supports second sound card for audio review or "spot announcements"
•
able to switch any of six (6) audio sources to either ear
•
1. R1 VFOA 2. R1 VFOB 3. R2 VFOA 4. R2 VFOB
5. Sound Card left channel 6. Sound Card right channel
hardware support for independent receive audio selection by operating state
•
1. R1=RX, R2=RX, TX focus=R1
3. R1=TX, R2=RX
hardware support for user defined "scenarios" handling (weak pileup, strong pileup, S&P, etc ...)
•
front panel control of audio mix level
•
configurable audio source (VFO A/B) for each sound card channel
•
support for recording headphone audio (WYH - What You Hear)
•
user selectable "delayed" headphone switching (100ms steps)
•
independent front panel record level level control for each channel
•
additional buttons for "classic" audio control R1/SPLIT/R2 or R1/MIX/R2
•
easy switching between manual and automatic control
•
microHAM © 2010 All rights reserved
2. R1=RX, R2=RX, TX focus=R2
4. R1=RX, R2=TX 5. R1=TX, R2=TX
5