|
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 |
|
|
Roofing filter |
2 x 4-pole 15 kHz crystal filter |
|
Frequency stability |
10 ppm (0 to 60° C) |
|
Antenna input |
50 ohm (SMA connector) |
|
Output |
12 kHz IF2 output |
|
Interface |
USB (1.0 and 2.0 compatible)
(serial interface optional)
|
|
Dimensions |
Length: 164 mm (6.46")
Width: 96 mm (3.78")
Height: 41 mm (1.61") |
|
Weight |
467 g (16.40 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-G303e 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-G303e 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.
|
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