“The definitive guide to the Long and Medium Wave bands”

WR-G313i Specifications

Receiver type DSP-based SDR with DDS-based dual-conversion superheterodyne front end
Frequency range 9 kHz - 30 MHz (optionally 9 kHz - 180 MHz)
Tuning resolution 1 Hz
Mode AM, AMS, LSB, USB, DSB, ISB, CW, FM
Image Rejection
1.8-7.3 MHz:  80 dB
7.3-30 MHz:  70 dB
IP3 +8 dBm @ 20kHz
Spurious-free dynamic range 95 dB
MDS -135 dBm
Phase noise -148 dBc/Hz @ 100 kHz
Internal spurious Less than equivalent antenna input of -115 dBm
RSSI accuracy 2 dB
RSSI sensitivity -137 dBm
Bandwidth 1 - 15000 Hz (adjustable in 1 Hz steps)
Scanning speed 400 steps/s (at 1kHz steps)

Sensitivity

(AM/SSB/CW 10dB S/N)

(FM 12dB SINAD)
Mode 0.15‑0.5 MHz 0.5‑1.5 MHz 1.5‑30 MHz
AM, AMS (30% modulation) ‑103dBm
(1.6µV)		 ‑106dBm
(1.1µV)		 ‑108dBm
(0.9µV)
AM, AMS (80% modulation) ‑111dBm
(0.63µV)		 ‑115dBm
(0.4µV)		 ‑116dBm
(0.35µV)
LSB, USB, ISB, DSB ‑115dBm
(0.40µV)		 ‑118dBm
(0.28µV)		 ‑119dBm
(0.25µV)
CW ‑122dBm
(0.18µV)		 ‑125dBm
(0.13µV)		 ‑130dBm
(0.07µV)
FM ‑110dBm
(0.7µV)		 ‑113dBm
(0.5µV)		 ‑117dBm
(0.32µV)

Note:
Below 150 kHz, the sensitivity gradually drops. Typical figures (CW) are:

100 kHz   -113 dBm
50 kHz   -102 dBm
25 kHz   -98 dBm
10 kHz   -90 dBm
Intermediate frequencies
IF1: 45 MHz
IF2: 16 kHz (variable 12-22 kHz)
Roofing filter 2 x 4-pole 15 kHz crystal filter
Tuning accuracy 1 ppm (25°C ±2°C)
Frequency stability 0.5 ppm (0 to 60° C)
Antenna input 50 ohm (SMA connector)
Output 600 ohm line audio
Form factor 2/3 length PCI card
Interface PCI 2.2 compliant
Dimensions Length: 195 mm (7.68")
(excluding mounting bracket)
Height: 99 mm (3.90")
(excluding edge connector)
Thickness: 19 mm (0.75")
(incl. components on either side)
Weight 330 g (11.6 oz)

Note:

For the 180 MHz frequency extension option, the following sensitivity parameters apply:

Mode 30‑120 MHz 120‑180 MHz
AM, AMS (30% modulation) ‑108dBm
(0.9µV)		 ‑106dBm
(1.1µV)
AM, AMS (80% modulation) ‑116dBm
(0.35µV)		 ‑114dBm
(0.45µV)
LSB, USB, ISB, DSB ‑119dBm
(0.25µV)		 ‑117dBm
(0.32µV)
CW ‑130dBm
(0.07µV)		 ‑128dBm
(0.09µV)
FM ‑117dBm
(0.32µV)		 ‑115dBm
(0.4µV)


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