USB interface featuring 24-bit audio,
CAT control, CW, FSK and digital modes like FT8, RTTY, PSK ...
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DXP™ is a lightweight, portable transceiver-to-computer USB interface with high dynamic range and low noise 24-bit audio ADC and DAC to facilitate high quality Digital operation (FT8, RTTY, JTxx, PSK31, etc.) and FSK.
CW operation is supported by the time-proven WinKey CW keyer developed by K1EL, now in version WKv3.1 with FSK support.
DXP™ is the first microHAM interface entirely utilizing Standard USB Class Devices for its USB operation. This means, that drivers are already incorporated in all current major computer operating systems, no driver installation is necessary. DXP does not need our USB Device Router for operation.
DXP™ is fully powered from a standard USB port while maintaining full galvanic isolation between computer and transceiver. The relay-free construction of DXP provides quiet operation based on an optoMOS part replacing the traditional output relay. CAT interface is jumper-free set up from the menu. The DB15F system connector is fully compatible with previous microHAM interfaces: USB II, USB III, DK, and DK II and uses the same DB15 cables.
High dynamic range 24-bit audio circuits are derived from our flagship interface - micro KEYER III, preserving transceiver performance also for digital modes, otherwise limited by 16-bit USB audio sound card built-in the transceiver or by using some other interface.
Single USB connection to computer for power, data and audio
Complete "Computer ↔ Transceiver ↔ Amplifier" galvanic isolation
Internal 24-bit USB Audio
Standard USB Audio Class device – no custom driver required
Asynchronous data transfer, internal low phase noise LO: -145dBc/Hz @1kHz
High dynamic range: 100 dB typical, 95 dB minimum
Extremely low noise floor: as low as <10 µV effective
Real-Time audio input level monitoring on built-in display
Silent operation without relays
USB Class compatibility (Audio & CDC), no drivers required for Windows 10, macOS and Linux
Radio control (CAT):
Up to 115200 Baud
Integrated menu driven (no jumpers) level converter for CI-V, FIF-232, IF-232, or RS-232 levels
Supports most Elecraft, Icom, Kenwood, Ten-Tec, Yaesu and other radios
24-bit, high dynamic range, very low distortion analog inputs
Dual channel receive capability
Ultra low noise floor, below the noise floor from any current transceiver
Front panel transmit/receive level control
UART based, zero jitter FSK output
Resamples computer standard 45.0 Baud rate for accurate 45.45 Baud HAM RTTY speed
Intelligent diddle stuffing to eliminate random gaps between characters for best decoding performance
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
Adjustable FSK keying polarity
USB keyboard support for stand alone FSK transmission with type ahead function
Genuine WinKey™ version 3 chip
Front panel speed knob, stand alone operation
Sample accurate support for audio based Q-CW keying
USB keyboard support for stand alone CW transmission with type ahead function
Six (6) user programmable memories
Isolated, high voltage optoMOS based PAPTT keying output, no clicking relays
Huge filtering for maximum RFI immunity, Metal/Aluminum case, Free firmware upgrades
Audio Line Output:
Audio Line In:
|Two Radio Operation||No||No|
|Built-in USB Soundcard||24-bit||24-bit|
|PS/2 Keypad Support||Yes||USB|
|Dual Receive Support||Yes||Yes|
|Voice Keyer Support||Yes||No|
|Auxiliary CI-V Output||Yes||No|