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Notes:
1. The
Professional
Demodulator offers two additional demodulation modes, DSB
and ISB.
2. The
Wide-FM
Option provides a separate wide-FM demodulator. The wide-FM
demodulation is performed in hardware, using conventional hardware-based
demodulation techniques, in order to ease the requirement of PC
processing power which would otherwise be required for a signal of this
bandwidth. In other words, the Wide-FM Option is an
entirely separate receiver on its own right.
3. The
Professional
Demodulator offers continuously adjustable IF bandwidth from
100 to 15000 Hz in all narrow-band modes. The optional Wide-FM
demodulator has a fixed bandwidth of 230 kHz.
4. The AM sensitivity is specified at 30% modulation
for 10 dB S/N ratio. For 80% modulation, typical AM sensitivity of
WR-G305i is 0.60 µV in 0.15-500 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-G305i 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 |
1.7 µV |
0.6 µV |
|
Professional |
1.5 µV |
0.45 µV |
Specifications are subject to change without notice
due to continuous product development and improvement.
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