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 posible 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-G305e 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)
|| 30% modulation
|| 80% modulation
|| 1.7 µV
|| 0.6 µV
|| 1.5 µV
|| 0.45 µV
Specifications are subject to change without notice due to continuous product development and improvement.