Tuner Digitisers, Antenna RF Switch Matrix, Multicoupler HF VHF UHF L Band

<body> <p class="ca_std"><a href="/CommsAuditNews.htm" target="main">CommsAudit News Update</a> <span class="ca_std">CommsAudit HF tuner Digitisers are suatable for Over the Horizon Radar OTHR and High Frequency Surface-Wave Radar HFSWR applications</span></p> <p class="ca_std"><a href="/profile.htm">Commsaudit Company profile</a></p> <p class="ca_std"><a href="/warranty.htm">Warranty</a></p> <p class="ca_std"><a href="/support.htm">Support</a></p> <p class="ca_std"><a href="/applications.htm">Applications</a></p> <p class="ca_std"><a href="/project.htm">Project</a></p> <p class="ca_std">RF multicoupler " high dynamic Range" </p> <p class="ca_std">CommsAudit Manufactures COTS, HF Narrowband Tuner Digitisers,HF TUNER Antenna Multicoupler distribution units for HF VHF UHF and L-Band, Antenna switch matrix systems that are Fast switching Non-blocking and full fan-out compliant, Down-converters for VHF UHF, <span class="ca_std"><font color="#000000">Superresolution HF direction finding SRDF multichannel tuners</font></span> and Frequency Standard distribution units.</p> <p class="ca_std"><span class="ca_std"><font color="#666666">HF Antenna beamformers and Antenna sequencer for 24 low band 24 High band inputs</font></span></p> <p class="ca_std">HF Narrow band Tuner Digitizer Digitizers VHF wideband tuner Digitisers Digitizer Digitizers <span class="ca_std"><font color="#000000">Super resolution </font></span></p> <p class="ca_std">The <a href="/CommsAuditNews.htm">CA7708</a> High Frequency Narrowband Tuner Digitiser System is a high performance, eight independent channel tuner solution, providing frequency coverage from 2MHz to 30MHz.The System is capable of operating in a hostile high signal RF environment and provides superior performance with its excellent spurious free dynamic range (SFDR), in particular when compared with a wideband tuner approach. <br> Each System has eight independent tuners packaged within a 2U rack mount enclosure and is ideal for space limited applications. The System can be used to replace legacy HF receivers in a number of RF communication surveillance and collection applications.The output is a combined single 1000 Base-SX fibre Ethernet carrying complex I&Q data. A comprehensive control environment is provided using the same 1000 Base-SX fibre Ethernet interface.The tuner can be operated by remote control and has extensive built in test systems to monitor the health of the unit.CommsAudit has provided an option to operate the tuners in a phase-coherent mode suitable for N-Channel super resolution direction finding (SRDF) and beam forming applications.The System has been engineered to allow for future proofing and changes, such as including the implementation of the VITA-49 standard, when ratified. <br> EMI/EMC MIL-STD-461E <br> CommsAudit is also providing, as an option, a comprehensive software suit of control and operational applications.</p> <p class="ca_std"><span class="ca_std">CommsAudit HF tuner Digitisers are suatable for Over the Horizon Radar OTHR and High Frequency Surface-Wave Radar HFSWR applications</span></p> <p class="ca_std"><a href="/products/antenna%20distribution.htm">Antenna distribution</a></p> <p class="ca_std"><a href="/employment.htm" target="Main">Employment / Job Cheltenham / Tewkesbury</a><b><a href="/employment.htm" target="main" class="LINK"> Openings for Graduates and experienced RF design and development engineers, PCB layout (DC to 3GHz) Embedded Digital Hardware, Wideband software radio systems.</a></b></p> <p class="ca_std"><a href="/employment5.htm">Graduate Software Engineer</a></p> <p class="ca_std">COTS HF Digital Tuner, <a href="/products/prod_grp_freq_receivers.htm">HF Tuner Quadrature</a>, <a href="/products/prod_grp_freq_bias.htm">HF Matrix</a>, <a href="/products/PDF%20folder/CA5554%20hf%20matrix%201.4.2.pdf">CA5554 HF matrix 1.3.pdf</a> <a href="/products/PDF%20folder/CA5556%20matrix%20VHF%20UHF.pdf">CA5556 matrix VHF UHF.pdf</a> HF Multicoupler, VHF Multicoupler, UHF Multicoupler, <a href="/products/PDF%20folder/multicoupler%20Blockdiagram.pdf">multicoupler Blockdiagram.pdf</a> Antenna Non-blocking Matrix, I/Q Receiver, RF Matrices, <a href="/Distributors.htm">International Distributors</a>, CommsAudit designs and manufactures COTS RF and digital equipment and subsystems for wide band and narrow band signal processing operations in the Frequency range. 10KHz to 3GHz, CommsAudit also manufactures , SP4T high-power RF Switch, SP8T RF Multicoupler products <a href="/products/prod_grp_freq_bias.htm">Antenna Matrices</a>, RF switching <a href="/products/prod_grp_freq_bias.htm">Non-blocking</a> Matrix, Receivers, Antenna distribution systems, Masthead Amplifiers, downconverters, Multicouplers, Broad band Bias Tee, Filters, Frequency Standard distribution systems, Our COTS devices are used in a wide range of electronics, surveillance, and reconnaissance systems; and high performance commercial communications equipment. CommsAudit is based the UK COTS, RF Matrix, Phase coherent HF Multicoupler ,VHF Multicoupler, UHF Multicoupler, Antenna <a href="/products/PDF%20folder/CA5554%20hf%20matrix%201.4.2.pdf">Non-blocking Matrix</a>,I/Q Receiver,RF Matrices, , <b><font color="#5A9FE6" size="3">CommsAudit</font></b> designs and manufactures COTS RF and digital equipment and subsystems for wide band and narrow band signal processing operations in the Frequency range. 10KHz to 3GHz. .CommsAudit also manufactures , RF Multicoupler products <a href="/products/prod_grp_freq_bias.htm">Antenna Matrices</a>,RF switching Non-blocking <a href="/products/prod_grp_freq_bias.htm">Matrix</a>, <a href="/products/prod_grp_freq_receivers.htm">Receiver</a>, Antenna distribution systems,<a href="/products/prod_grp_freq_vh3ipmasthead.htm">Masthead Amplifiers</a>, downconverters, <a href="/products/3ip.htm">Multicouplers</a>, Broad band Bias Tee, <a href="/products/prod_grp_freq_filter.htm">Filters</a>, , <a href="/products/prod_grp_time.htm">Frequency Standard distribution systems</a>, Our COTS devices are used in a wide range of electronics, surveillance, and reconnaissance systems; and high performance commercial communications equipment. CommsAudit is based in Cheltenham and Tewkesbury UK <font color="#999999" size="1"><b> </b></font></p> <p class="ca_std">Radio Direction Finding Equipment , DF , HF, Super-resolution.</p> <p class="ca_std">CA5554 HF switching Matrix</p> <p class="ca_std"> </p> <p class="ca_std">CommsAudit strives to offer the highest dynamic range for its RF signal distribution systems. We use a variety of proprietary designs employing advanced techniques. Our high performance HF Matrix switching system incorporates very low power consumption with outstanding linearity for space-limited applications and has established CommsAudit as one of Europe's leaders in the field<br> The CA5554-4/8 is designed to switch the signals from 4 HF Antennas through a non-blocking full fan-out switching matrix in a multiple HF receiver system. Providing 8 receiver outputs, each of the receiver outputs can select any of the inputs without any restrictions. <br> Remote diagnostics are available from the controlling workstation; it has full visibility of the matrix subsystems down to amplifier level. If regular polling of the system status is used, potential failure can be identified by a trend in amplifier bias current or temperature. This provides the remote operator with a unique diagnostic ability. <br> <br> Using high intercept point solid-state switch technology the CA5554-4/8 provides a step forward in RF antenna switching Matrix technology The CA5554-4/8 Antenna Switch Matrix is one of a series of HF / VHF / UHF Units available from CommsAudit<br> Features: -<br> Frequency range: 2 to 30 MHz (1.5 to 50 MHz with reduced performance)<br> Very high dynamic range. Typical output intercept: >+43dBm third-order >+93dBm second-order<br> Low power consumption: <50 watts<br> Size suitable for limited space applications: 2U high 19-inch rack 483 mm wide 440 mm deep<br> Low noise figure: <10dB @ 10 MHz<br> Excellent 1dB compression point: +28dBm<br> Switching speed: <0.5mS<br> BITE is available through the TCP/IP network Full board level diagnostics<br> The physical design of the CA5554-4/8 makes it suitable for limited space applications. It is housed in a 2U standard 19-inch rack enclosure. All CommsAudit’s HF switching Matrices have internal solid-state transient protection networks which protect against typical input pulses. The CA5554 series of HF switch matrix units can be supplied with a number of input and output channels up to a maximum of 16 inputs and 32 outputs although multiple CA5554s can be employed for larger receiver systems. <br> Control of the CA5554 is via a standard Ethernet 10/100 Base T network connection or RS232 serial data using either the CommsAudit supplied protocol or one based on the customer’s requirements. Switching speeds of <1.0mS are possible (from receipt of a command). The CA5554 uses a proprietary low power amplifier design employing advanced techniques to provide excellent 2nd and 3rd order intercept points and high compression level. </p> <p class="ca_std">It is sometimes necessary to connect more than one receiver to a single antenna output. This is normally referred to as multicoupling. Commsaudit provides a superior solution that provides very high isolation between the antenna and the multicoupler output ports also between multicoupler output ports.</p> <p class="ca_std">CA3035B</p> <p class="ca_std"><br> CommsAudit strives to offer the highest dynamic range for its signal distribution systems. We use a variety of in house designs employing advanced techniques. Outstanding third order intercept points greater than +50 dBm with current consumption of 150 to 450 mA, and second order intercepts well in excess of +90 dBm are achievable in amplifiers embedded in unique multicoupler and switch matrix applications. Our high performance multicouplers incorporate a low noise figure with outstanding linearity and have established CommsAudit as a European leader in the field.<br> The CommsAudit CA3035B receiving antenna multicoupler is one of a series of HF / VHF / UHF Units<br> Features: -<br> – Frequency Range 1.8 – 32 MHz <br> (1 – 50 MHz with reduced performance)<br> – Very High Dynamic Range typically +93dBm IP2<br> – 4. 8,12,16,24 or 32 Outputs<br> – Low Noise Figure (typically 10 dB)<br> – Excellent output isolation (typically 40 dB)<br> The CA3035B uses highly balanced push-pull amplifiers in its design to provide excellent 2nd and 3rd order intercept points in the presence of high level interference signals. The antenna input has lightning and static protection as standard with a combination N-type and EMP protection device. The CA3035B consists of a standard 483 mm (19") rack-mounted unit having a panel height of (1,2 or 3U. Each output has a buffer amplifier to assist with isolation and RX matching. The external 90 - 240-volt supply enters via a separate IEC 3 pin connector and is transient protected and RFI filtered before being regulated to a ‘raw’ 28 volts. This supply is then fed both to the optional Phantom power through coax, (for an active antenna / masthead amplifier) and the local amplifiers, each of which has an associated 24-volt regulator circuit. All dc voltages have an externally mounted led indicator for maintenance purposes. A BITE option may be ordered to continuously monitor the bias conditions and temperature of its amplifier stages. Any errors are indicated by the amplifier fault LED on the front panel and an optional alarm contact on the rear panel.</p> <p class="ca_std">TECHNICAL<br> INFORMATION <br> RF input / output impedance: 50 ohms nominal<br> Noise figure: typically 6 dB at 25°C<br> Nominal Gain: ± 1.5 dB<br> Frequency response (3 dB) 1.8 to 32 MHz<br> VSWR (50 ohms) Input 1.7: 1 max. <br> VSWR (50 ohms) Output 1.5: 1 max. <br> Intermodulation:</p> <p class="ca_std">Phase coherent<br> Input 3rd order intercept point: min.+43 dBm at 25°C <br> 2nd order intercept point: min.+93 dBm at 25°C <br> Max RF input without damage: +30 dBm<br> Internally generated spurious: Below -120 dBm<br> Output isolation port to port: min. 40 dB at 25°C<br> Output to Input isolation: min. 60 dB at 25°C<br> Connectors:<br> Signal input: N Type <br> Signal output: BNC, N Type or SMA<br> Power Connector: IEC 3 pin<br> Antenna feed: Standard 50-ohm coax<br> Options:<br> Output port no. : 8,12,16,24 or 32<br> EMP protection devices: Gas-discharge <br> BITE: DC & bias errors LEDs<br> Filters: Band /high /low pass<br> Phantom Power output (option): 24V 12V 5V 3V<br> Special options: Contact CommsAudit<br> Power supplies:<br> Power source: 90 to 240 vac 50 Hz<br> Power Consumption: <150 Watts for 8 ports<br> Protection: fuse <br> Environmental:<br> Operating Temperature range: -15° to +50°C <br> Storage Temperature range: -20° to +70°C <br> All specifications measured at: at 25°C<br> Part Numbers: CA3035B<br> Order information: please quote part numbers, filter<br> options, output port options, connector type, EMP option & BITE option. <br> Designed and Manufactured in the U.K. by <br> Communications Audit UK Limited<br> PO Box 78 Cheltenham GL52 6ZU<br> Phone: 44 (0) 1242253131<br> Fax: 44 (0) 1242253031<br> <br> Web: <a href="/www.commsaudit.com">https://www.commsaudit.com</a> </p> <p class="ca_std"><br> <a href="/products/prod_grp_freq_bias.htm">HF VHF UHF Antenna Switching Matrix </a></p> <p class="ca_std"> </p> <p class="ca_std"> <a href="/products/3ip.htm" target="main">multicoupler<br> multicouplers<br> sigint <br> <br> RF switching<br> HF multicouplers</a><br> <a href="/products/prod_grp_freq_bias.htm">RF switch matrix</a><br> masthead amplifier<br> Antenna Matrices<br> <a href="/products/prod_grp_freq_receivers.htm">HF receiver</a> CA7708 HF Narrowband Tuner Digitiser,Digitizer Digitizers<br> <a href="/products/prod_grp_freq_receivers.htm">VHF receiver</a><br> <a href="/products/prod_grp_freq_receivers.htm">UHF receiver</a><br> SHF receiver<br> <a href="/products/3ip.htm">antenna distribution</a><br> downconverter<br> <br> <a href="/products/prod_grp_freq_receivers.htm">I and Q receiver</a><br> <a href="/products/prod_grp_freq_receivers.htm">wideband receiver</a><br> <a href="/products/prod_grp_freq_receivers.htm">HF Narrowband Tuner Digitisers narrowband receiver</a><br> TDMA modulation<br> Digital modulation<br> Phase tracking<br> intermodulation<br> Phase coherent<br> <a href="/products/prod_grp_freq_bias.htm">non blocking RF matrix</a><br> <a href="/products/prod_grp_freq_vh3ipamp.htm">IP2 intercept point</a><br> <a href="/products/prod_grp_freq_vh3ipamp.htm">IP3 intercept point</a><br> RF design<br> <a href="/products/prod_grp_freq_vh3ipamp.htm">Low noise Amplifier</a><br> <a href="/products/prod_grp_freq_vh3ipamp.htm" target="main">High dynamic range amplifier</a><br> <a href="/products/prod_grp_freq_receivers.htm">Communications receive</a>r<br> <a href="/products/prod_grp_freq_bias.htm">Antenna Matrix</a><br> <a href="/products/3ip.htm">VHF multicouplers</a><br> <a href="/products/3ip.htm" target="main">UHF multicouplers</a> <br> <a href="/products/PDF%20folder/CA3035B.pdf">CA3035B</a><br> <a href="/products/PDF%20folder/CA5554%20hf%20matrix%201.4.2.pdf">CA5554 </a></p> <p class="ca_std">UHF wideband tuner Digitisers Digitizer Digitizers </p> <p class="ca_std">CA3036B<br> <a href="/products/PDF%20folder/CA5556%20matrix%20VHF%20UHF.pdf">CA5556 </a> </p> <p class="ca_std"><a href="/links.htm" target="main">Links</a></p> <p> </p> <p class="ca_std"><b>History<br> </b>Communications Audit UK Limited (CommsAudit) was formed in 1987 as a subsidiary of Hambros plc by Nicolas Vafiadis and initially specialised in communications security consultancy. By 1992 CommsAudit had identified a new markets in Radio Frequency surveillance technology and Government agencies quickly recognised the potential for CommsAudit products to be used to combat crime and terrorism. During this period CommsAudit moved the focus of its operations to become an electronic research and development company to address the security and defence markets. In 1998 CommsAudit became wholly owned by the Investec Group following the acquisition by the Investec Group of Hambros plc. In 1999 CommsAudit made a successful MBO and has operated since as a privately owned UK company.</p> <p class="ca_std"><b> Operations<br> </b>CommsAudit designs and manufactures RF and digital equipment and subsystems for wide band and narrow band signal processing operations in the Frequency range 10 KHz to 3 GHz including digital control and digital signal processing (DSP). CommsAudit also manufactures HF Narrowband Tuner Digitisers Antenna Matrix systems, Antenna Multicouplers, Antenna distribution systems, Masthead Amplifiers, Downconverters, Frequency Standard distribution systems, RF ATE systems,<span class="ca_std"><font color="#000000">Superresolution HF direction finding</font></span> systems.</p> <p class="ca_std">Our devices are used in a wide range of electronics, surveillance, and reconnaissance systems, and high performance commercial communications equipment.<br> <br> <b>Quality Policy </b></p> <p class="ca_std"><b>CommsAudit Mission Statement<br> </b>CornmsAudits Mission is to provide a rapid response to our customers operational requirements with state of the art equipment and systems. Functionality, reliability and quality are of paramount importance. Our aim is to continue to be a quality supplier by: </p> <ul> <li> <p class="ca_std">identifying Customer's needs and expectations and satisfying them on time every time, </li> <li> <p class="ca_std">continual improvements in our operational responsiveness, </li> <li> <p class="ca_std">developing employee skills and increasing their contributions through effective training </li> <li> <p class="ca_std">developing Supplier relationships to obtain defect free materials on time, every time. </li> <li> <p class="ca_std">We are committed to providing quality, choice and value for money in the products and services we deliver to our customers. </li> </ul> <p>© Communications Audit UK limited 2009</p> </body>