Icom IC-R8600 How To Use The Ic-r8600 As An Sdr Receiver/about The Hdsdr Softw - Page 8

IC-R8600 I/Q Settings Screen NOTE: The Receiver settings are automatically set to the receiver when the HDSDR software connects to the receiver. 1 2 3 4 6 5 7 8 9 10 "OVF" is displayed when the receiver receives an excessively strong signal. 1 Sampling Rate  (Default: 5.12MHz (BW = 4.48MHz)) Select the sampling rate value of the signal that is input to a PC. LLIf the audio is interrupted, select a lower sampling rate value. LLIf the sampling rate value is too low, a sharp spike (a DC) is displayed at the LO frequency position. See page 5 about how to remove a sharp spike. 7 HF BPF (Default: ON) Select whether or not to use the receiver's BPF when operating the HF band. LLIf an excessively strong signal is received, turn ON this function. 8 RF Gain Adjust the RF gain (sensitivity). (Default: MAX) 2 Bit (Default: 16bit) Select bit depth of the signal that is input to a PC. LLIf Sampling Rate (1) is set to "5.12MHz (BW = 4.48MHz)," bit depth is set to "16bit." 3 ANT (Default: ANT1) Select antenna connector ANT1, ANT2, or ANT3. LLWhile operating between 30 and 3000 MHz frequency band, only the ANT1 connector can be used. 4 P.AMP (Default: OFF) Select whether or not to enable the Preamplifier function. The preamp amplifies received signals in the receiver front end to improve the signal-to-noise ratio and sensitivity. A preamp is used when receiving weak signals. 9 TS (Tune Freq) (Default: 1k (except for FM mode) 25k (FM mode)) Select the tuning steps when you set the Tune frequency using the RC-28. LLIf the TS function is OFF, the tuning step is set to 10 Hz. LLWhen rotating [Main dial] to set the LO frequency, the tuning step depends on Sampling Rate (1). 10 Click to display the USB Dial Settings screen. (p. 4) Tuning steps when you set the LO frequency using the RC-28 Sampling Rate TS is ON TS is OFF 5.12MHz 5 IP+ (Default: OFF) Select whether or not to enable the IP Plus function. The IP Plus function improves the Intermodulation Distortion (IMD) quality by optimizing the direct sampling system performance. 6 ATT (Default: OFF) Select the attenuator setting. The attenuator prevents a desired signal from becoming distorted when a very strong signal is near the frequency, or when a very strong electric field, such as from a broadcasting station, is near your location. 3.84MHz 1.92MHz 960kHz 480kHz 240kHz 120kHz 60kHz 30kHz 1MHz 100kHz 10kHz 100kHz 10kHz 1kHz 3