PLATH SIR 2115 HF/VHF/UHF

The receiver SIR 2115 is the most advanced device of PLATH Signal Products HF/VHF/UHF receiver family.
The receiver provides an instantaneous coherent bandwidth of 80 MHz and covers the frequency range from 9 kHz – 3 (6) GHz. Its first-class modular and flexible design, the extremely high scanning speed of 100 GHz/s, the digital broadband output and the configurable narrowband receiver technology enable various configurations for different application scenarios, from manual to automatic interception in communications intelligence solutions (COMINT).  

The virtual receiver concept allows the substitution of up to 20 narrowband receivers in the selected frequency range.

Full RF spectrum support, extremely high-speed scan, wideband digital output, and configurable narrowband receivers (DDC's) offer new applications for signal search and analysis. Compared to other receivers the fast scan of 100 GHz/s over the entire frequency range significantly reduces the time needed to create a list of emissions prior to final analysis. The signal search and alert feature is a very efficient and flexible tool for observation of multiple signals of interest at the same time. These outstanding benefits, combined in just one device, allow the user to save and focus the resources.

• Frequency range from 9 kHz – 3 GHz (HF, VHF and UHF). A version up to 6 GHz is also available
• Fast detection of unknown signals. Search for activity over wide frequency ranges. Monitoring of individual frequencies, lists of frequencies or frequency ranges.
• Broadband recording: The complete I/Q data of 4 x 20 MHz wideband DDC's with an overall instantaneous analogue bandwidth of 80 MHz can be streamed for recording and later analysis.
• With up to 20 narrowband DDC with various bandwidths of 50/100/200/400 kHz, signals can be intercepted and processed in parallel. Therefore, the SIR 2115 can replace an entire set of narrowband receivers.
• With its flexible broadband concept and on module level Built-in Test Equipment (BITE) the SIR 2115 is perfectly suited for task-controlled operation within automatic COMINT systems to detect and collect signals and Signal Related Information (SRI).
• Special operating mode in the 30 - 90 MHz range with its own band pass filter for the best possible HF performance.
• Integration into civil and military dedicated systems. Easy integration and use with e.g. PROCITEC go2MOMNITOR (RCM-Plugin). An SDK DCM for general integration purpose is also available.

SIR 2175 is a version for VHF/UHF Direction finding (DF)

Best in class Noise Figure (NF)

Ultra-low noise figure for maximum detection range. A Noise Figure (NF) < 6 dB (typ.) in the frequency range from 20 MHz to 1000 MHz for example, leads to a much larger detection range. With a NF of 6 dB or 8 dB, signals emitted from a much further distance, or with a much lower power can be detected, compared to a Receiver with a higher NF.

Large Dynamics range / Excellent IP3 performance

The third-order intercept point (IP3) is one of the most important specification of a receiver's dynamic performance because it predicts the performance as regards intermodulation, cross-modulation, and blocking desensitization. A strong and a weak signal, close together still can be detected and distinguished with the SIR 2115. A high IP3 value specifies that the device has good linearity and high dynamic range

Fast scan of 100 GHz per second for signal search and detection

The fast scan significantly reduces the time needed to create a list of emissions prior to further analysis.

20 integrated virtual narrowband receivers (NB DDCs)

The SIR 2115 allows the allocation of 20 integrated virtual narrowband channels (NB DDCs) with an individual selectable bandwidth of 50/100/200/400 kHz for the V/UHF range and 50 kHz for the HF range. Additional enhanced NB bandwidths are also optional available.
With a bit depth of 24 bits, these DDC work like narrowband receivers and can be used to search, monitor or demodulate any signal either automatically or by manual assignment. Therefore, the SIR 2115 can replace multiple conventional narrowband receivers. The overall system performance is secured even with active DDC channels.

Automatic Gain Control (AGC) automatic setting of optimal working point

The aim of the AGC is to optimally control the ADC of the device so that the maximum sensitivity can be achieved without overdriving the input signal. This is especially important for automatic COMINT systems. To achieve this goal, analogue attenuators, or amplifiers, are switched within the receive path of the device, depending on the input signal. Two different AGC modes are available for ideal AGC settings depending on the use case.

Options

Delay memory (optional)

The SIR 2115 has a memory that allows to delay the output data for the NB and BB DDC. This delay can be used to compensate for system latencies that elapse between the detection of a signal and the commanding of a corresponding NB or BB DDC channel. By delaying by the system latency, it can be ensured that "the first bit" of a transmission can also be evaluated.
The delay memory allows a delay time in sum of up to 16 s, which can be set in a second’s grid of 1 second. A delay time of 0 s deactivates the delay memory. The delay time is set via system interface or via client software (e.g. WinMON, SPACS).
The delay time can be set independently for the narrowband (NB) DDC and broadband (BB) DDC, but must not exceed 16 s in total.

Enhanced NB DDCs (optional)

The option unlocks the additional enhanced bandwidths 6.25 kHz, 12.5 kHz and 25 kHz for the narrowband DDCs. These additional bandwidths are than available for the HF and V/UHF frequency range of the SIR 2115.

HF Multiplex Mode (optional)

The HF multiplex mode can be used to monitor the entire HF range (30 MHz) with one wideband DDC output. The data output is sent to one single output destination. The broadband DDC outputs the data on the specified RF frequencies for the set holding time.
The hold time can set between 1 ms and 1 s. The frequency ranges of the DDC is freely adjustable within the HF range. The broadband DDC has a constant, selectable bandwidths of the HF DDC wideband channels.
For example, 4 DDCs with a bandwidth of 5 MHz each, are multiplexed to one single output destination, with a hold time of 1 second.

80 MHz Total Bandwidth Output (optional)

This option enables the output of the total bandwidth (TBW) of 80 MHz in compete I/Q data stream. This means that the complete receiver bandwidth of 80 MHz of the SIR 2115 can be processed with a suitable subsequent device (e.g. BE-Com from BitRecords).
The data output of the TBW 80 MHz is only in VITA 49.2 data format available. The TBW 80 MHz VITA 49.2 data output is independent of the option “VITA 49.2 Data Output (optional)”.

VITA 49.2 Data Output (optional)

With this option, the I/Q data for the narrowband DDC and the broadband DDC can be output in VITA 49.2 format.