WR-G65DDCe Excalibur Sigma | WiNRADiO

WiNRADiO » WR-G65DDCe Excalibur Sigma

PC controlled, direct sampling SDR. Frequency range from 1 KHz to 88 MHz and from 118 to 190 MHz, all-mode. Supports up to 64 MHz spectrum record bandwidth. Excellent dynamic range with +40dBm IP3 and 111dB SFDR. Ideated in USA, year of introduction 2018.

Reference market : ham-radio / professional

General :
Frequency coverage 0.0010 ~ 88.0000 MHz
118.0000 ~ 190.0000 MHz
Modulation mode CW / LSB / USB / ISB / AM / AM-S / DSB / FSK / FM / DRM [1]
Tuning step 1 Hz min
Receiver :
Sensitivity CW [2] 0.09 uV typ (10 MHz, 10dB S+N/N, Pre ON)
SSB [3] 0.18 uV typ (10 MHz, 10dB S+N/N, Pre ON)
MDS (Minimum Detectable Signal) -128 dBm (10 MHz, 500 Hz BW, Pre OFF)
-135 dBm (10 MHz, 500 Hz BW, Pre ON)
-130 dBm (150 MHz, 500 Hz BW, Pre OFF)
-138 dBm (150 MHz, 500 Hz BW, Pre ON)
Selectivity 0.001 ~ 64 KHz user-defined [4]
A/D conversion Freq. 210 Msps
Res. 16 Bit
Sampling out 20 Ksps - 64 Msps [5]
RF preamplifier 10 dB
NF (Noise figure) 16 dB (0.001~88 MHz, preamplifier OFF)
9 dB (0.001~88 MHz, preamplifier ON)
14 dB (118~190 MHz, preamplifier OFF)
6 dB (118~190 MHz, preamplifier ON)
Dynamic range SFDR 111 dB (0.001~88 MHz, preamplifier OFF)
109 dB (0.001~88 MHz, preamplifier ON)
101 dB (118~190 MHz, preamplifier OFF)
97 dB (118~190 MHz, preamplifier ON)
IP3 (3rd order intercept point) +40 dBm typ (0.001~88 MHz, preamplifier OFF)
+28 dBm typ (0.001~88 MHz, preamplifier ON)
+21 dBm typ (118~190 MHz, preamplifier OFF)
+7 dBm typ (118~190 MHz, preamplifier ON)
Clipping input level -3 dBm typ (0.001~88 MHz, @1dB, preamplifier OFF)
-13 dBm dBm typ (0.001~88 MHz, @1dB, preamplifier ON)
-7 dBm dBm typ (118~190 MHz, @1dB, preamplifier OFF)
-17 dBm dBm typ (118~190 MHz, @1dB, preamplifier ON)
Max input level +30 dBm (0.001~88 MHz)
+34 dBm (118~190 MHz)
Synthesizer phase noise -145 dBc/Hz @ 10 kHz typ
Image rejection 100 dB typ (1~35 MHz)
> 85 dB (35~88 MHz)
> 60 dB (118~130 MHz)
> 80 dB (130~185 MHz)
Spurious response < -110 dBm
Frequency stability ± 0.1ppm with temperature from 0°C to +50°C
Features :
Memory Unlimited memory channels
Antenna SMA 50Ω connector (0.001~88 MHz)
SMA 50Ω connector (118~190 MHz)
Power supply 12 VDC external, or
Power over Ethernet
Power consumption 800 mA max, from 12 VDC
Connections USB 3.0
USB 2.0
Ethernet with PoE (1 Gbit, Power over Ethernet)
Mechanical and environmental data :
Operating temperature from 0°C to +55°C
Dimensions 166 (W) x 59 (H) x 97 (D) mm
Weight 811 g

[1] DRM mode optional
[2] 500 Hz bandwidth
[3] 2100 Hz bandwidth
[4] With 1 Hz steps
[5] In 36 steps

Description :

The WR-G65DDC EXCALIBUR Sigma is a top performance, direct-sampling, software defined two-in-one HF/VHF receiver. Two independent and mutually exclusive inputs are provided, one for each range. Range A from 1 kHz to 88 MHz and range B from 118 to 190 MHz. A real time 88/72 MHz wide spectrum analyzer is included with a 64 MHz wide instantaneous bandwidth available for recording, demodulation and further digital processing. The receiver's superior performance results from its innovative, direct-sampling, digital down-conversion architecture along with the use of leading-edge components and design concepts. These all result in excellent sensitivity and dynamic range, highly accurate and stable tuning, and perfect demodulation. These key features create a receiver with wide application potential, including many operational and instrumentation features not usually found on receivers of any price category. More, for the main range from 1 kHz to 88 MHz eighteen preselection filters are available, in automatic or manual mode, as follow.

  • High-pass: 850 kHz, 2.4 MHz, 5.4 MHz, 11.8 MHz
  • Low-pass: 3.1 MHz, 5.4 MHz, 11.8 MHz, 23.3 MHz
  • Bandpass: 10 filters
  • Filter OFF: bypass

On the EXCALIBUR Sigma the entire 64 MHz DDC, digitally down-converted, bandwidth is available for recording and demodulation. And ideal tool for hopping frequencies analysis and full-band time-shifted monitoring. Three demodulators allow the simultaneous reception and decoding of radio signals within the entire band. The WR-G65DDCe also its ready for phase-coherent system configurations such as in high performance interferometer direction finding applications. The receiver interfaces to a Windows-compatible PC via USB3.0, or 1 Gb Ethernet LAN port with PoE (Power over Ethernet functionality). The receiver is very well shielded against interference, making it possible to operate in a noisy computer environment. Its modest power requirements are less than 12 watts. While connected via a LAN interface, thanks to PoE built-in functionality, the receiver can be operated and powered via a long Ethernet cable connection.

Options :

The following two factory-fitted hardware options are available. G65DDCe/XR, includes an additional SMA connector which can be used to connect an external 10 MHz reference oscillator for the highest possible frequency accuracy. The reference oscillator can be either sine or square wave between -5 to +10 dBm. G65DDCe/RO, includes an additional SMA connector, which can be used to output the 10 MHz reference frequency. This is useful for situations where the receiver's internal oscillator is to be used as a reference for other equipment.

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