|
Receiver type |
DDS-based dual-conversion
superheterodyne with software-defined last IF stage and demodulator |
|
Frequency range |
9 kHz -823.990 MHz
849.010-868.990 MHz
894.010-1800 MHzBLOCKED
FREQUENCIES
823.990001-849.009999 MHz
869.990001- 894.009999 MHz |
|
Tuning resolution |
1 Hz |
|
Mode
(See Note 1.)
|
AM, AMN, AMS, LSB, USB, CW,
FM3, FM6, FMN |
|
Image/Spurious Rejection |
60 dB |
|
IP3 |
+5 dBm @ 20kHz |
|
MDS |
-135 dBm |
|
Spurious-free Dynamic Range |
93 dB |
|
Phase noise |
-148 dBc/Hz @ 100 kHz |
|
RSSI accuracy |
5 dB |
|
RSSI sensitivity |
1 µV |
Selectivity
(-6dB)
(See Note 2.)
|
|
AM |
6 kHz |
|
AMN |
4 kHz |
|
AMS |
4 kHz |
|
LSB, USB |
2.5 kHz |
|
CW |
500 Hz |
|
FM3 |
3 kHz |
|
FM6 |
6 kHz |
|
FMN |
12 kHz |
|
|
Scanning speed |
40 channels/s |
|
Sensitivity
(AM/SSB/CW 10dB S/N)
(FM 12dB SINAD)
(See Note 3.)
|
|
Mode |
0.009-0.1 MHz |
0.1-2 MHz |
2-30 MHz |
|
AM |
9.0µV |
2.2µV |
0.9µV |
|
LSB, USB |
3.0µV |
0.7µV |
0.3µV |
|
CW |
1.2µV |
0.2µV |
0.1µV |
|
FM3, FM6, FMN |
2.2µV |
0.4µV |
0.2µV |
|
|
Intermediate frequencies
|
|
|
Frequency stability |
10 ppm (0 to 60° C) |
|
Antenna input |
50 ohm (SMA connector) |
|
Output |
12 kHz IF2 output
(sound card Line Input compatible) |
|
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 |
310 g (10.9 oz) |
|
|
|
Notes:
1. The
Professional
Demodulator offers two additional demodulation modes, DSB
and ISB.
2. The
Professional
Demodulator offers continuously adjustable IF bandwidth from
1 to 15000 Hz.
3. The AM sensitivity is
specified at 30% modulation for 10 dB S/N ratio. For 80% modulation,
typical AM sensitivity of WR-G303i is 0.3 µV in 2-30 MHz range. The
Professional
Demodulator improves sensitivity further by making it
possible to extend filter lengths, and adjust the IF bandwidth for
optimum reception of the received signal: This results in a typical
improvement by 2-3 dB on AM/SSB/FM and up to 10 dB on CW.
The WR-G303i receiver is truly
one of the most sensitive receivers available, yet with an excellent
dynamic range.
The following table illustrates
the effect of the AM modulation depth and the Professional Demodulator
on typical sensitivity figures:
| |
AM Sensitivity (10 MHz, 10 dB
S/N) |
|
Demodulator |
30% modulation |
80% modulation |
|
Standard |
0.9 µV |
0.3 µV |
|
Professional |
0.6 µV |
0.25 µV |
Specifications are subject to
change without notice due to continuous product development and
improvement. |
|