PC-controlled shortwave receiver allows quality SWLing for a fraction of the price of other shortwave receivers. Load the 1 MB of software from the included CD-ROM to your hard drive, connect the RX-320D to an open serial port, plug the radio into the wall and you’re ready to explore the world. No serial port? Use the provided serial port-to-USB adapter to plug RX-320D into an open USB port on your PC.

RX320D Schmatics

RX320D Manual

Specifications:

MODES: AM, LSB, USB, CW

FREQUENCY RANGE: 100 kHz - 30 MHz

FREQUENCY ACCURACY: +/- 100 Hz at 25 degrees C.

MEMORIES: Limited only by available RAM in PC, virtually any PC will store 1000's of stations.

SENSITIVITY:

AM (80% mod @ 1 kHz) 6 kHz .64 uV for 12 dB S+N/N

CW/SSB 2.5 kHz .3 uV for 10 dB S+N/N

SELECTIVITY: 34 IF-DSP bandwidth filters built-in. 300 Hz, 330 Hz, 375-750 Hz in 75 Hz steps, 750-3000 Hz in 150 Hz steps, 3000-6000 Hz in 300 Hz steps, 8 kHz.

THIRD ORDER INTERCEPT: + 10 dBm

DYNAMIC RANGE: 90 dB @ 2.4 kHz bandwidth at 50 kHz spacing

I-F FREQUENCIES: 1st I-F 45 MHz, 2nd I-F 455 kHz, 3rd I-F 12 kHz

I-F REJECTION:> 60 dB

IMAGE REJECTION:> 60 dB

I-F OUTPUT: Center frequency, 12 kHz; bandwidth> 10 kHz; level approx. 2 V pk-pk into 600 ohms, sound-card compatible.

ANTENNA: 50 ohm unbalanced for external antenna. High impedance at telescoping whip connection, automatically switched out of line when external antenna connected.

PC INTERFACE: Industry standard serial interface on DB9 connector,USB-to-serial adapter provided for USB use

CONNECTIONS: + DC input, DB9 for serial port, external antenna, line output to sound card, I-F output, external speaker.

POWER REQUIRED: < 500 mA at 13.5 - 15 VDC, wall transformer 110 VAC supplied

AUDIO: 1 watt at 4 ohms.> 1 v p-p output into 600 ohms (typical to drive a sound card).

CONSTRUCTION: 2 epoxy-glass PC boards, aluminum chassis, steel top and bottom

SIZE: HWD 3" x 6.25 " x 6.5"

WEIGHT: 2.5 lbs (1.14 kg)