HF/VHF/UHF Receivers

DRS Signal Solutions, Inc. (DRS-SS), is known for developing extraordinary reductions in size, weight and power needs for high performance tuners and receivers. This equipment is used under the most exacting of specifications in a variety of applications. Optimizing tuners for high performance under these demanding conditions has resulted in a world class reputation as an RF equipment manufacturer for the intelligence community.

For nearly 50 years, DRS-SS’ unique capabilities in designing and manufacturing extremely small and low power solutions have supplied RF and DSP hardware on ground-based, ship-based and airborne (including UAV-based) platforms.DRS-SS’ inheritance from the Watkins-Johnson Company is a reputation as one of the oldest, most dependable and innovative RF/microwave houses in the world. With an average of 19 years tenure, DRS-SS employs 335 personnel, a third of which are RF/microwave, DSP, software and mechanical engineers. Over 25 percent hold TS/SCI clearances.

Receivers - Minatures

WJ-8607A, B, C - VHF/UHF FAST MINICEPTOR™ RECEIVER

The WJ-8607A Miniceptor™ is a small, frequency-agile, lightweight VHF/UHF receiver. Its compact size, fast tuning speeds, automatic functions and high-level control interface make it ideal for system applications. Its high dynamic range, low phase noise, multiple detection modes, and excellent selectivity provide performance superior over many significantly larger receivers.

The Miniceptor provides a tuning range of 20 to 512 MHz, which is extendible to 2000 MHz (with the 860XA/FE option) or 3000 MHz (with the 860XA/3GFE option). It provides tuning to 2 MHz where modest HF performance is acceptable. The unit includes up to five IF filter bandwidths ranging from 3.2 kHz to 8 MHz and an IF bypass path of approximately 12 MHz.

The Miniceptor demodulates AM, FM, CW, and Pulse and SSB (optional) signals. Eight Miniceptors easily fit into a WJ-9908A Equipment Frame allowing formation of a multi-receiver system within a 19-inch chassis. WJ-RCS32 Receiver Control Software can be used to achieve system control via a multi-drop RS-232, RS-422A, or RS-485 interface bus. This graphical user interface enables simultaneous fixed frequency tuning, spectrum scans, priority channel scans, automated signal listing and handoffs, as well as audio recording and playback within a Microsoft Windows™ environment.

Automated searches for and reports new or priority signal activity
Intercepts weak signals in presence of stronger ones
Light weight and small size
Commercial-off-the-shelf (COTS) receiver control software and equipment frame provides turnkey solution

WJ-8607A Highlights

300 microseconds tuning to within 10 kHz of final frequency
Low phase noise
High dynamic range
SWEEP, STEP and lockout
Multiple detection modes:
- AM, FM, CW, Pulse standard
- SSB optional
Up to five IF bandwidth filters:
- Three standard
- Two optional
Manual and automatic gain control
Adjustable COR/squelch function

WJ-8607B is capable of tuning between any two frequencies between 2 to 512 MHz and settling to within 10 kHz of its final frequency in less than 600 microsecond.

WJ-8607C is capable of tuning between any two frequencies between 20 MHz to 512 MHz and settling to within 10 kHz of its final frequency in less than 1100 microseconds.

DRS-SS APR. Export of DRS SIGNAL SOLUTIONS, INC. products is subject to U.S. export controls. Licenses may be required. This material provides up-to-date general information on product performance and use. It is not contractual in nature, nor does it provide warranty of any kind. Information is subject to change at any time. Copyright © DRS SIGNAL SOLUTIONS, INC. 2003. All Rights Reserved.

SI-8614 NANOCEPTOR™ VHF/UHF RECEIVER

The SI-8614 Nanoceptor™ is a high performance, subminiature, general purpose, surveillance receiver that tunes from 20 to 3000 MHz in 100-Hz steps. The extremely small size and low power consumption make the receiver ideal for portable, narrowband, surveillance applications where weight and power reduction are crucial. Signal demodulation includes AM, FM, LOG and Pulse. The Nanoceptor™ can provide up to nine IF filters supporting IF bandwidths as narrow as 10 kHz to as wide as 40 MHz. A bank of eight selectable post-detection video filters can be used to optimize the video bandwidth independent of IF filtering.

The Nanoceptor™supports USB and RS-232 interfaces and automatic scanning functions. Three interactive operating modes are provided: MANUAL, SWEEP and STEP. MANUAL mode provides direct entry of receiver frequencies and other parameters for signal analysis or allows recall of programmed receiver setups. SWEEP mode allows the receiver to scan a portion of the RF spectrum (F1 – F2) in a specified frequency increment, while locking out frequency bands or signals that are not of interest. STEP mode allows the receiver to tune through portions of the RF spectrum by use of pre programmed memory channels that are set up with the receiver parameters.

SI-8614 Highlights

20 to 3000 MHz frequency range with 100-Hz tuning resolution
Extremely compact size
Low power consumption
Supports up to nine bandwidths ranging from 10 kHz to 40 MHz
AM, FM, LOG and pulse detection modes
RS-232 or USB remote control
Fixed frequency tuning and fast flexible scanning
Non-volitle storage for up to 200 sweep/step setups and 200 lockout bands

Public Release IAW 22 CFR (ITAR) 120.11(7). Export of DRS SIGNAL SOLUTIONS, INC. products is subject to U.S. export controls. Licenses may be required. This material provides up-to-date general information on product performance and use. It is not contractual in nature, nor does it provide warranty of any kind. Information is subject to change at any time. Copyright © DRSSIGNAL SOLUTIONS, INC. 2003. All Rights Reserved.

WJ-8654 MINIATURE VHF/UHF MICROCEPTOR™ RECEIVER

The WJ-8654 Microceptor™ is an extremely small [40 cubic inches (648 cubic cm)] general-purpose surveillance receiver covering the 20 to 1000 MHz frequency range. It supports extenders that allow it to cover from .5 MHz to 2.4 GHz. The small size and low power consumption make the unit ideal for portable surveillance applications where weight and power are crucial.

The Microceptor™ features low phase noise frequency synthesizers for high dynamic range and an accurate tuning resolution of 100 Hz. A high-performance tracking preselector filters incoming RF signals, and rejects undesired out-of-band signals. Up to four 21.4-MHz selectable IF filters may be installed in the receiver. Two IF filters are included in the base receiver.

The receiver is available in either a narrowband configuration, WJ-8654, or a wideband configuration, WJ-8654-3. The WJ-8654 supports IF bandwidth filters ranging from 3.2 to 100 kHz with AM, FM, CW, and SSB detection modes.

The narrowband WJ-8654 can also provide a translated IF output in lieu of a demodulated output. The WJ-8654-3 supports IF bandwidth filters ranging from 250 kHz to 12 MHz with AM and FM detection modes.

The mechanical packaging design of the receiver uses modern surface-mount technology. The receiver circuitry is divided among four glass-epoxy printed circuit (PC) boards. Multilayer PC boards, fastened into a milled-aluminum chassis, provide RF isolation. All control and RF interconnections are available at one end of the unit along the 3.0 W x 1.7 H inches (7.62 x 4.32 cm) face. RF signals are passed in and out of the unit via SMA-type connectors.
All control and power supplies are available on microminiature D-type connectors.

WJ-8654 Highlights

Frequency range: 20 to 1000 MHz
- w/ 8654/HFE: .5 to 1000 MHz
- w/ 8654/FE: 20 to 2400 MHz
- w/ 8654/FEHF .5 to 2400 MHz
Low power: 5.35 watts
Miniature size: 1.70 H x 3.0 W x 7.75 D inches (4.32 x 7.62 x 19.69 cm)
AM, FM, SSB and CW detection modes
10-Hz tuning resolution in SSB mode
Up to four selectable IF filters
- WJ-8654 from 3.2 to 100 kHz
- WJ-8654-3 from 250 to 12000 kHz
Tracking preselector filter
Low phase noise
Lightweight: 2.1 lbs (0.95 kg)
Low-power sleep mode of operation
Command compatible with WJ-8607A Miniceptor™ Receiver

SI-8649 PICOCEPTOR™ MINIATURE HF/VHF/UHF SDR

The SI-8649 Picoceptor™ realizes the power and flexibility of a software-definable radio, while overcoming the Size, Weight and Power (SWaP) challenges of today’s battlefield. It can be scaled to meet the mission criteria of the autonomous warfighter or of sophisticated intelligence-gathering networks. The modular Picoceptor™ can be worn by soldiers or easily integrated onto small platforms for land, sea or air operations. Its rugged packaging allows it to withstand the extremes of the harshest deserts or the highest altitudes, making it ideal for use in ground mobile, UAV or unmanned ground sensor applications. A wide selection of Picoceptor™ types allows custom matching to mission requirements ranging from low power, single-channel tactical uses to high-performance networked battlefield use.

Its software-definable architecture means that it can be deployed for a signal intercept/analysis application, then re-deployed for threat warning, and again re-deployed to other mission-critical applications, such as precision geo-location.

Picoceptors™ can achieve phase coherency for multi-channel applications, such as direction finding and beamforming, by sharing a common reference via a simple daisy chain. The network-centric Picoceptor™ supports a standard VITA-49 digital IF data protocol that allows digitized IF to be time-stamped and characterized with sensor-specific information for output and transmission across modern battlefield networks.

World-class SWaP and RF performance
Mission configurable on the fly
Multiple configurations address a wide range of requirements
Network-centric digital IF data protocol

PICOCEPTOR Highlights

SDR Linux platform, built-in web-based GUI
Field-upgradeable open architecture
RS-232 or USB 2.0 OTG remote interface
FPGA access to 64 Mbyte SDRAM and 32 Mbyte flash memory
Programmable general-purpose IO (GPIO) facilitates system integration

DRS-APR. Export of DRS SIGNAL SOLUTIONS, INC. products is subject to U.S. export controls. Licenses may be required. This material provides up-to-date general information on product performance and use. It is not contractual in nature, nor does it provide warranty of any kind. Information is subject to change at any time. Copyright © DRS SIGNAL SOLUTIONS, INC. 2008. All Rights Reserved.

Receivers - VME

SI-8616 VME DIGITAL RECEIVER

The SI-8616 is a high-performance, software-definable VME VHF/UHF receiver that features Sunrise™ Receiver technology. This architecture allows dynamic reconfiguration of the SI-8616 in the field. The SI-8616 combines a high performance RF front end with a powerful, general-purpose, digital signal processor in a single receiver platform. With Sunrise™ technology, the SI -8616 is capable of processing bandwidths from 200 Hz to 1.23 MHz and capable of accepting downloadable DSP software algorithms from the user. The SI-8616 provides fixed frequency tuning and step and sweep scans. Memory operations allow setup of 200 sweep/step setups and 200 lockout bands. The SI-8616 is capable of AM, FM, CW, SSB, ISB and FSK detection. New DSP algorithms can be created, and downloaded to intercept, analyze, demodulate and/or decode other types of RF signals using the WJ-SDK Sunrise™ DSP Software Developer’s Kit.

The SI-8616 is ideal for applications requiring both flexible digital signal processing and broad frequency coverage in a highly integrated package. Combining receiver control and flexible digital signal processing on a standard instrument and computing bus adds significant system capabilities, while reducing the complexity of system integration. The DSP software download feature provides a means for the system to be dynamically changed to respond to rapid changes in today’s advanced digital signal communication environments.

SI-8618 Highlights

VHF/UHF tuning range
Single-slot 6U VME card
Digital IF filtering and demodulation
Bandwidth ranging from 200 Hz to 500 kHz or 1.23 MHz
Filtered I & Q data available on VME backplane
Digital audio available on VME backplane
AM, FM, CW, SSB, ISB, FSK detection modes, other modes available
VME bus register-based control
Capable of accepting downloadable DSP algorithms developed with WJ-SDK Sunrise™ DSP Software Developer’s Kit
Equipment frame and digital signal monitor data output configurations available

SI-8622 DIGITAL VHF/UHF WIDEBAND VME RECEIVER

The SI-8622 is a high-performance wideband digital VHF/UHF receiver in a 6U single-slot VME form factor used for surveillance and monitoring operations. It provides frequency coverage in the 20 to 3000 MHz range in 10-Hz tuning steps and digital bandwidth filtering ranging from 200 Hz to 22 MHz.

The SI-8622 is capable of AM, Log AM (Pulse), FM, CW, LSB, USB, ISB and Phase modulation detection. Simultaneous to signal demodulation, the SI -8622 is also capable of providing IF panoramic data for signal analysis and IF spectral display (signal monitor function) via an external personal computer. The data format of the IF panoramic display can be configured to provide a spectral span of up to 25 MHz with selectable resolution from 3.4 to 55 kHz. If higher resolution is needed, the user may configure the unit to operate using 500-Hz to 8-kHz bin size resolutions but only with a spectral span of up to 1.5 MHz.

SI-8622 Highlights

Single-slot 6U VME VHF/UHF receiver
20 to 3000 MHz frequency range
Digital bandwidth filtering from 200 Hz to 22 MHz
DSP demodulation for AM, Log AM (Pulse), FM, CW, LSB, USB, ISB and Phase
Simultaneous IF spectral pan display data and demodulation
RF Spectral (with RF pan display data) and discrete frequencies search
Reconstructed switched IF output
Digital audio available on VME bus, high-speed RS-232, USB, and Ethernet interfaces
Built-in USB/Ethernet/RS-232/VME control interfaces
Sunrise™ – compatible
Combines with a SI-9251 microwave downconverter to form a 0.02 to 18 GHz receiver

Receivers - Rack Mount

WJ-8611 DIGITAL HF/VHF/UHF RECEIVER

The WJ-8611 is a half-rack, fully synthesized general purpose HF/VHF/UHF surveillance receiver that covers the 2 to 1000 MHz frequency range with a 10-Hz tuning resolution. The unit combines a high quality RF front end with digital signal processing (DSP) to achieve high performance at a low cost.

The WJ-8611 accomplishes functions such as IF filtering, demodulation, fine tuning, automatic gain control (AGC), and beat frequency oscillator (BFO) through DSP techniques. Filters with superior amplitude and group delay characteristics are achieved with digital stability and repeatability, and are not subject to variations with operating temperature.

WJ-8611 Highlights

Frequency range: 2 to 1000 MHz in10-Hz steps
Compact 5.25-inch (13.34 cm) high (3U) half-rack package
Digital IF section providing 17 IF filters from 200 Hz to 200 kHz with exceptional shape factors
AM, FM, CW, SSB and ISB detection modes
Low phase noise and highly linear RF performance
Built-in tracking preselection
Large front-panel displays and user-friendly controls
200-channel memory scan and F1-F2 scanning
RS-232C and IEEE-488.2 remote control
Built-in self test
High MTBF
Optional integral digital signal monitor IF Pan data output
European CE approved for EMC and low voltage directives compliance
5.25 H x 8.25 W x 18.0 D inches (13.34 x 20.96 x 45.72 cm)
Weight: 15 lbs. (6.8 kg)

WJ-8711A DIGITAL HF RECEIVER

The WJ-8711A is a fully synthesized, general-purpose HF receiver for monitoring RF communications from 5 kHz to 30 MHz with 1 Hz tuning resolution. By combining analog and digital signal processing (DSP), the WJ-8711A achieves high performance at low cost.

DSP techniques accomplish functions such as noise blanking, IF filtering, AGC, demodulation, beat frequency oscillator (BFO) and passband tuning. Filters with superior amplitude and group delay characteristics are achieved with digital stability and repeatability. The receiver has 66 standard selectable IF bandwidths. Available detection modes are AM, SAM, FM, CW, USB, LSB and ISB. An operator can adjust the tunable BFO in 10-Hz steps over a ±8000 Hz range, and the available passband tuning further enhances the reception of CW signals. Gain control is manual or automatic, with fast, medium and slow AGC modes. An operator can adjust the squelch threshold from 0 to -135 dBm, or disable it. Enabling the noise-blanking feature effectively eliminates the adverse effects of impulsive noise.

In addition to fixed-frequency tuning, the WJ-8711A provides fast, flexible scanning in three modes: channel scan, F1-F2 scan and F1-F2 scan with lockouts. Dwell times are available for all scan modes from 0.5 to 20 seconds or infinite. The channel-scan mode provides 100 programmable memory channels. The operator can specify sectors of memory for individual channel scans, allowing the subdivision of available memory into multiple search scenarios. Operators can specify that the receiver skip certain channels without deleting them from memory. Memory channels can also be single-stepped manually. In both F1-F2 scan modes, the step size is user-selectable from 1 Hz to 25 kHz. The receiver can store up to 100 independent frequency lockouts

WJ-8711-A Highlights

Frequency coverage from 5 kHz to30 MHz in 1-Hz steps
High dynamic range: +30 dBm third order intercept typical
Digital filtering provides 66 IF bandwidths up to 16 kHz with exceptional shape factors
AM, SAM, FM, CW, USB, LSB and ISB detection modes standard
Fast, flexible scanning with 100 memory channels
Large readable LED displays and user-friendly controls
Three variable AGC decay settings
Noise blanking and passband tuning
Tunable IF notch filter
Internal switchable preamplifier and attenuator
Standard remote interface (optional Multidrop RS-232, RS-485, RS-422, CSMA or IEEE-488)
Built-in self test
Optional suboctave preselector
Optional digital data output
5.25 H x 19.0 W x 20.0 D inches (13.36 x 48.26 x 50.80 cm)
Weight, 15 lbs. (6.78 kg)

WJ-8712A DIGITAL HF RECEIVER

The WJ-8712A is a fully synthesized, general-purpose HF receiver for surveillance and monitoring of RF communications from 5 kHz to 30 MHz with 1-Hz tuning resolution. The unit is packaged in a 3.5 x 8.25 x 20 inch (8.89 x 20.96 x 50.80 cm) half-rack enclosure with a blank front-panel, and utilizes the same RF and Digital printed circuit boards as the WJ-8711A. By combining analog and digital signal processing (DSP), the WJ-8712A achieves high performance at low cost.

The WJ-8712A is operated remotely via one of two selectable serial interfaces. With the exception of audio output level and remote control mode selection, all receiver parameters are controllable and accessible via an RS-232 or CSMA remote interface.

In addition to fixed-frequency tuning, the WJ-8712A provides a fast, flexible scanning capability. Three scan modes are available: channel scan, F1-F2 scan, and F1-F2 scan with lockouts. For all scan modes, the dwell time can be

set from 0.5 to 20 seconds or infinite. In channel scan mode, 100 programmable memory channels are available.

WJ-8712-A Highlights

Frequency coverage from 5 kHz to 30 MHzin 1-Hz steps
High dynamic range: +30 dBm third-order intercept typical
Digital filtering provides 66 IFBWs up to 16 kHz with exceptional shape factors
AM, SAM, FM, CW, USB, LSB and ISB detection mode standard
Fast, flexible scanning with 100 memory channels
3.5-inches (8.89 cm) high, half-rack configuration
Noise blanking and passband tuning
Tunable IF notch filter
Internally-selectable preamplifier and Attenuator
Internally-selectable RS-232 or CSMA remote control
Extensive built-in self test
Numerous options including: IEEE-488 or multidrop RS-485 remote control, suboctave preselector, digital data output, speech enhancement
3.5 H x 8.25 W x 20 D (8.89 x 20.96 50.80 cm)
Weight, <12 lbs. (5.5 kg)

WJ-8723 DIGITAL HF RECEIVER

The WJ-8723 is a fully synthesized, general-purpose HF receiver that monitors RF communications from 5 kHz to 30 MHz with 1-Hz tuning resolution. The unit is packaged in a 1.75 x 19.0 x 15.0 inch (4.44 x 48.26 x 38.10 cm) full-rack enclosure with a blank front panel. By combining analog and digital signal processing (DSP), the WJ-8723 achieves high performance at low cost. The WJ-8723 operates remotely making it ideal for commercial frequency management system applications. Receiver parameters are controllable and accessible via an RS-232 multidrop remote interface.

In addition to fixed-frequency tuning, the WJ-8723 provides a fast, flexible scanning capability. Three scan modes are available: channel scan, F1-F2 scan, and F1-F2 scan with lockouts. For all scan modes, the dwell time can be set from 0.5 to 20 seconds or infinite. In channel scan mode, 100 programmable memory channels are available. Functions such as noise blanking, tunable notch filter, IF filtering, automatic gain control (AGC), demodulation and beat frequency oscillation (BFO) are accomplished through the use of DSP techniques. Filters with superior amplitude and group delay characteristics are achieved with digital stability and repeatability. There are 66 selectable IF bandwidths (IFBWs) ranging from 56 Hz to 16 kHz.

Available detection modes are AM, synchronous AM (SAM), FM, CW, USB, LSB, ISB and FSK (optional). A tunable BFO can be adjusted in 10-Hz steps over a ±8000 Hz range. Passband tuning further enhances the reception of CW signals. Gain control can be accomplished manually or automatically, with variable fast, medium and slow AGC modes.

WJ-8723 Highlights

Frequency coverage from 5 kHz to 30 MHz in 1-Hz steps
High dynamic range: + 30 dBm third-order intercept typical
Digital filtering provides 66 IFBWs up to 16 kHz with exceptional shape factors
AM, SAM, FM, CW, USB, LSB & ISB detection mode standard; FSK optional
Fast, flexible scanning with 100 memory channels
Noise blanking & passband tuning
Tunable IF notch filter
Internal switchable preamplifier & attenuator
Multidrop RS-232 high-speed remote interface 300 to 19.2 kBaud
Extensive built-in self test
Built-in 11-band suboctave preselector
Optional digital signal output (DSO1)

YAZICI Ltd. Şti
Ak Plaza Is Merkezi Yasam Cad. No:7/22 06520 Sogutozu / Ankara - TURKEY
Tel : +90 (312) 219 2223 | Fax :+90 (312) 219 2075 | e-mail : info@yaziciltd.com