SDR-IQ

Name: Rf-Space SDR-IQ receiver
Brand: Rf-Space
SKU: SDR-IQ
Price: 622.00 USD
Availability: OnlineOnly

Specifications

Prices

PC controlled direct sampling SDR receiver. Frequency range 0.0005-30 MHz all-mode, supports spectrum record/playback up to 196 KHz bandwidth. Ideated in USA.

Reference market : amateur-radio

SDR-IQ specifications

General

Frequency coverage
0.0005 ~ 30.0000 MHz [1]
Mode
CW / LSB / USB / AM / DSB / FM
Tuning step
1 Hz min

Receiver

Sensitivity
CW	0.3 uV (14 MHz, 10dB S/N)
MDS (Minimum Detectable Signal)
-127 dBm (14 MHz)
Selectivity
user-defined
ADC (Analog to Digital Conversion)
Sample rate	66.666 Msps
Resolution	14 Bit
DDC bandwidth	196 Ksps max
IP3 (3rd order intercept point)
+15 dB
Image rejection
80 dB
Spurious response [2]
80 dBfs max 100 dBfs typ

Features

Memory
Unlimited memory channels
Antenna
BNC 50Ω
Power supply
5 VDC USB
Power consumption
425 mA
Connections
USB2.0 RS-232

Mechanical and environmental data

Dimensions
95 (W) x 32 (H) x 95 (D) mm

Usable down to 100 Hz.
Referenced to ADC max input range.

SDR-IQ description :

The RF-Space SDR-IQ is a direct sampling receiver that uses a 14-bit ADC and an AT91SAM7S256 processor from Atmel. It offers a wide range of possibilities for extended frequency coverage, starting from only 500 Hz and therefore suitable for VLF monitoring, as well as for spectrum analysis functions and signal demodulation options. The information flow of the ADC is processed by a digital converter (DDC) in order to obtain data in I/Q format to be sent to a PC via USB connection. All filtering and demodulation operations are assigned to the softwares, the latest version of SpectraVue (Moetronix) and SDR-Radio.

On the technical side, the receiver integrates a preamplifier, RF attenuators, and a filter bank in the front-end preselector. The applications include, besides the stand-alone apparatus function, the use combined with a second receiver or transceiver for which it performs Panadapter tasks by displaying the spectrum around the intermediate frequency (IF) value which can be freely set by the operator thus comprising standards such as 455 KHz, 8.83 MHz, 10.7 MHz, 21.4 MHz. From the PC you can record up to 196 KHz of the RF spectrum for delayed playback that uses AM, FM, SSB, DSB, CW demodulation by adjusting bandwidth and resolution of the FFT analysis between 2048 and 262144 points. The FFT is performed with a speed of 50 updates per second acting with a span (interval) of 190 KHz and BW (resolution) of 100 Hz. The following table shows the combination of frequency ranges, IQ data flow, and maximum resolution achievable:

Combination of frequency ranges
Span	I/Q data flow	Maximum resolution
5 KHz	8.138 Ksps	0.031 Hz
10 KHz	16.276 Ksps	0.062 Hz
25 KHz	37.792 Ksps	0.14 Hz
50 KHz	55.555 Ksps	0.21 Hz
100 KHz	111.111 Ksps	0.42 Hz
150 KHz	158.730 Ksps	0.61 Hz
190 KHz	196.078 Ksps	0.75 Hz

It should be mentioned that the SDR-IQ also has an RS232 serial port to directly interface other receivers, among these different Icom and AOR models such as IC-R8500, IC-R9000, IC-R9500, IC R7000, IC-R7100, AR-5000.

SDR-IQ price

We have collected for your convenience the Rf-Space SDR-IQ sale price (US Dollar) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price	Date	Condition
USD 622.00 (489GBP)	2019-jan	Second Hand

SDR-IQ review

Sensitivity
Selectivity
Dynamic range
Spurious response
Audio
Signal functions
Control functions
User friendly
Stars: 1=insufficient \| 2=just sufficient \| 3=mediocre \| 4=good \| 5=excellent

Your opinion on merits, defects, experiences, with this radio set is welcome. Write your review, after a technical evaluation by our staff if found suitable will be published on this page. We thank you for your precious contribution.