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ELAD FDM-S2 SDR Receiver | Radioaficion Ham Radio

ELAD FDM-S2 SDR Receiver


ELAD FDM-S2 SDR ReceiverELAD S2 and DUO - SDR Made in Italy

The second version of the receiver developed by Franco and his collaborators in Milan Elad continued on the same line of great simplicity and power contained in a low- occupation of space, powered directly from the USB port that acts as an interface and above all economic.

The price of 525 € should be dell'S2 ivati ​​and characteristics are even more interesting . Judging from the first preliminary information , Elad seems to have the desire to make a generational leap forward that was lacking in its competitors in Italy and abroad. The sampling frequency is dell'S2 of 122.88 MHz , which is equivalent to saying that in undersampling mode will be able to receive large portions of the spectrum to the VHF . The VHF input has two filters for tuning in bandea broadcast ( 74-108 MHz) and for the satellites meteeo and 2 meters of amateur radio ( 136-160 MHz) . The band gained in normal mode ranges from 9 kHz to 52 MHz Sensitivity is truly remarkable , with an MDS (minimum detectable signal, measured at 500 Hz bandwidth of 14 MHz ) equal to -132 dBm.

The management software / treatment dell'S2 has the same ability to capture the S1 , in other words can acquire (and save on the computer disk ) up to 6144 kHz of bandwidth, but in alternative offers the possibility of having two oscillators local digital completely independent , in practice two different receivers with a narrower band individual , to 384 kHz ( function supported in a Windows environment with the appropriate plug-in ExtIO " Multichannel ").

The platform stand alone DUO does not require interfacing with the computer thanks to the presence of a powerful microcontroller Cortex and beyond to version RTX for amateur radio, provides a version in receive-only DUOr referred explains Milan , S2 is a kind of junction with interface USB to manage through the pC. The basis of the conversion of the RF is the same for the DUO and S2: a Spartan 6 FPGA , XC6LX25 and the same is the A / D converter , and a 16-bit Linear ADC clocked at 122.88MHz .

The output of the DUO is scheduled for the end of February at a price of about € 1,160 for the transceiver and the receiver 800 for DUO .


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