PDF Rohde&Schwarz EK895 HF Reciever Datasheet
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Version 04.00 Digital VLF-HF Receivers R&S® EK895/R&S® EK896 For all shortwave applications from 10 kHz to 30 MHz ◆ Compact DSP-based receivers for the following applications: – Radiomonitoring and radio detection – Radiocommunications – Search operation, DF systems – Frontend for HF intelligence tasks ◆ Digital signal processing (DSP) for convenient and versatile operation ◆ Two models: – Half-rack receiver R&S EK895 – Search receiver R&S EK896 ◆ Realtime remote control or master-slave mode ◆ Tried and tested system concept ◆ Excellent price/performance ratio ◆ Extremely reliable operation under harsh environmental and EMC conditions June 2003 VLF-HF Receiver R&S EK895 with control panel Digital VLF-HF Receivers R&S® EK895/R&S® EK896 Special features ◆ Excellent large-signal behaviour, very good intercept points ◆ High resolution of tuning frequency down to 1 Hz ◆ Fast and low-noise synthesizer ◆ Demodulators for AM, CW, LSB, USB, ISB, FM, FSK, AFSK and FAX included in basic configuration ◆ 13 bandwidths from 150 Hz to 8 kHz (quasi-continuous on request) ◆ RF preamplifier, switchable (noise figure 8kT0) ◆ Double notch filter ◆ Noise blanker ◆ DATA LINK reception (option) ◆ Passband tuning ◆ Syllabic squelch ◆ Special RTTY (FSK/AFSK) mark and space filters, matched to the selected shift 2 Digital VLF-HF Receivers R&S® EK895/R&S® EK896 ◆ Digital data output ◆ Maximum input voltage protection up to 100 V EMF ◆ Control interface fully complying with international standards ◆ Low power consumption <25 VA (basic model R&S EK895), therefore little self-heating ◆ Powerful microprocessor for bus interfacing, menus and user programs ◆ Dual receiver as 19“ desktop or rack models ◆ Free slots for retrofitting of options ◆ Integrated self-test down to module level with plain-text result display ◆ Available with operator front panel or remote-control-only front panel ◆ Highly compact; width 1/219" (R&S EK895) or 19" (R&S EK896) Operational features ◆ Easy to operate via terminal, computer or front panel ◆ High rejection of strong interfering signals ◆ 1000 programmable channel memory locations ◆ Scan mode for programmable frequency ranges and any desired channel sequences ◆ Remote control of all settings – over any distance when using modems ◆ Ideal handoff receivers in stationary, mobile and remote receiving systems ◆ High availability owing to long MTBF and short MTTR ◆ Easy to adapt to special requirements by means of optional plug-in modules and standardized interfaces Overview General characteristics of the R&S EK895 With the R&S EK890 family, Rohde& Schwarz is presenting a powerful generation of VLF-HF receivers which are topend products benefiting from many years of experience in this field. All members of this family are based on the R&S EK890 basic model. Due to the advantages of digital signal processing, embedded in the improved receiver versions R&S EK895/R&SEK 896 a number of additional features and operational convenience have been added. Straightforward, menu-guided selection and programming of the receiving settings ensure excellent processing and handling of the received signal content. The compact design is due to the use of largescale-integration SMDs. Featuring full system compatibility, the receivers provide the basis for extremely economical customer-specific solutions. With its excellent RF characteristics and clearcut, full remote-control capability via standardized data interfaces, the R&S EK890 family is suitable for all civil, administrative and military shortwave applications. These receivers are an ideal choice for receiving systems that have to fulfill extremely high reliability requirements, in particular under harsh environmental and EMC conditions. Operation is possible via an ASCII terminal, a computer (PC) or via the front panel. Using line drivers, a master receiver can control up to 99 remote receivers in master-slave operation. On the R&S EK895/ R&S EK896, two wired and bus-integrated slots for plug-in modules are provided for extensions, e.g. BCD interface or input filters. Uses The comprehensive sequence control can be used for all demanding shortwave reception tasks. Due to flexible programming of the processor, the following operating modes are possible: ◆ Manual operation ◆ Remote control or master-slave operation ◆ Channel scanning, sequential and programmable ◆ Frequency scan ◆ Channel reception ◆ Password-protected channel reception The R&S EK890 family thus fulfills the requirements for versatile use in voice receiving and any kind of data communication system as well as for all radiomonitoring, radio detection and radio intelligence (COMINT) applications. For application in DF systems, an R&S EK895 is used as the master (controlling synthesizer), its LOs being brought out for external amplification, distribution and phaselocked application to all other receivers. The built-in memory has capacity for nonvolatile storage of 1000 complete channel settings so that channel management and control by an external computer are not required but are nevertheless additionally possible. Due to their excellent characteristics regarding dynamic range, low synthesizer noise and gain control range, the receivers are ideal high-performance frontends for subsequent signal processing. Two independent Receivers R&S EK895 with remote-control panel in a 19“ rackmount adapter Digital VLF-HF Receivers R&S® EK895/R&S® EK896 3 Search Receiver R&S EK896 Design The R&S EK896 has especially been designed for complex tasks of radio detection and search reception, its operating principle and configuration perfectly matching the relevant requirements. Basically it is fitted with panel controls and LCD displays for local and remote-control operation. RF unit The antenna signal is routed via a lowpass filter, which is provided for rejecting image frequencies and suppressing oscillator reradiation, and applied to the input mixer where it is converted to the first IF of 41.44 MHz by means of an oscillator variable in 1 Hz steps. The crystal filter that follows determines the maximum receiving bandwidth of 10 kHz and rejects the second image frequency. A fixed frequency of 40 MHz is used for conversion to the second IF of 1.44 MHz. High-speed and reliable radiomonitoring is supported by temporary storage of a complete receiver setup and its transfer to or readout from the connected slave. The R&S EK896 is the optimal operator’s position in modern radiomonitoring systems. In the usual master-slave mode, a master receiver can control up to 99 slave receivers via additional line drivers to handle simultaneous radiomonitoring or specific radio detection tasks. Due to its outstanding characteristics, the R&S EK896 is ideal for use as a standalone receiver. All R&S EK895 options can be fitted. The high-performance mixer at the receiver input ensures excellent largesignal behaviour. The intercept points are typically +70 dBm (IP2) and +35 dBm (IP3); the crossmodulation transfer is 10% for an interfering signal of +21 dBm. In most cases, additional filters such as suboctave filters are therefore not required. Search Receiver R&S EK896 with front panel for local/remote control 4 Digital VLF-HF Receivers R&S® EK895/R&S® EK896 IF/AF processor (DSP) The second IF is converted to the third IF of 25 kHz using a 5.66 MHz fixed frequency. After digitization of the third IF in a 16-bit A/D converter, the processor assumes all signal generation and processing tasks (DSP) including the following: ◆ Automatic, remote or manual control (AGC, DGC, MGC) ◆ Measurement of received levels ◆ Filtering with 13 fixed or quasi-continuously adjustable bandwidths ◆ Demodulation, passband tuning, double notch filter ◆ Noise blanker, syllabic squelch ◆ Generation of BFO frequency as analog IF from 0 to 40 kHz, digital IF as serial data and I/Q data stream Synthesizer The synthesizer supplies all the conversion frequencies required for the RF and the IF demodulator units. Due to direct digital frequency synthesis, the first conversion oscillator can be varied in 1 Hz steps. The settling time of the oscillator is 5 ms for any frequency variation. Two phase-locked loops (PLLs) produce the 40 MHz and 5.66 MHz fixed frequencies. The operation of the total of four PLLs in the synthesizer is continuously monitored. In the basic version, all the frequencies are derived from a temperature-compensated crystal oscillator. Higher accuracy requirements can be fulfilled by including a heated crystal oscillator (optional OCXO) or using an external frequency standard (1 MHz, 5 MHz or 10 MHz). Control functions Processor and software The 16-bit microprocessor using powersaving CMOS technology is what makes the high-performance, compact, reliable and user-friendly concept of the R&S EK895 possible. The microprocessor is not only responsible for setting and managing the module functions, it also communicates with the outside world via the panel controls and the data interface, executes the internal programs and ensures the high operational reliability through various routines: ◆ Nonvolatile storage of all settings ◆ Continuous testing of CPU, RAM and PROM functions ◆ Continuous monitoring (CM) of synthesizer ◆ BIT (built-in test) for module testing The simple and logical ASCII command syntax for controlling the receiver via the serial interface includes control commands for the following: Basic settings ◆ Frequency ◆ BFO ◆ Bandwidth ◆ Demodulation modes ◆ Gain control mode ◆ Digital threshold ◆ Passband tuning Channel operations ◆ Channel manipulations ◆ Store channel ◆ Erase channel ◆ Select channel ◆ Readout channel Special operations ◆ Master-slave operation ◆ Complete erasure of channel memory Search operations ◆ Frequency scanning ◆ Channel scanning ◆ Hold time ◆ Dwell time ◆ Stop criterion In addition, the following functions can be selected on the front panel: ◆ ◆ ◆ ◆ ◆ ◆ ◆ Test operations ◆ Read CM status ◆ BIT start ◆ BIT readout Display of interface configuration Fast channel storage Channel buffer storage Default settings on/off Password for channel service Local/remote mode Knob increments System operations Readout of ◆ Software version ◆ Options ◆ Error messages ◆ Signal level ◆ Deviation Block diagram of the Digital VLF-HF Receivers R&S EK895/R&S EK896 Antenna IF/AF processor RF unit Option A DSP D IF converter 455 kHz IF 0 to 40 kHz or IF 455 kHz Digital IF (data, clock, frame) D 1 Synthesizer A IF = 25 kHz IF = 1.44 MHz IF = 41.44 MHz D 4 A 41.45 MHz to 71.44 MHz External frequency standard TTY 5.66 MHz AF 1 I/Q TCXO OCXO (option) Headphones Output AF 2 40 MHz RS-232-C/RS-485 Option 1 Control unit EMC filter Option 2 RS-232-C/ RS-485 interface AC supply Processor Power supply Digital VLF-HF Receivers R&S® EK895/R&S® EK896 5 Various configurations Receivers with control panel In the standard version, the R&S EK895 receiver is available with an operator front panel, which can also be retrofitted. This front panel also permits manual control and display of all functions while full remote-control capability is maintained. This version is particularly suitable for use as a master receiver in receiving systems or as a standalone unit (standard with R&S EK896). The operator interface allows for a combination of hardkey and softkey entries. Parameters that are frequently handled, i.e. receive frequency, channel, BFO frequency and passband tuning (PBT), can be entered directly via a separate keypad. All current receiver settings are continuously displayed in large high-contrast characters on a backlit LCD. An additional bargraph indicator allows display of either the receive level (0 to 120 dBµV, in 5 dB steps), the DGC or MGC settings or the frequency offset (as a tuning aid and deviation indication). Receivers with remote-control panel Optionally, the receivers are remotecontrolled by ASCII command sequences via a multistandard interface (RS-232-C, RS-485, RS-422/423, 2-/4-wire). In the simplest case, a terminal can be used as the control unit. For more convenience, a computer can be used to handle complex tasks and to create special user interfaces. A demo program for generating a virtual front panel is available if desired. The features newly incorporated into the R&S EK895/R&SEK 896, such as preamplifier (PREAMP), noise blanker (NB), squelch (SQ), notch filter (NOTCH) and passband tuning (PBT), are selected in submenus using softkeys. If one of these features is active, a bargraph appears on the display above the relevant inscription (PREAMP, NB, SQ, NOTCH, PBT). 6 Digital VLF-HF Receivers R&S® EK895/R&S® EK896 Remote Control Unit R&S GB899 (model 03) This option is an R&S EK895 reduced to control functions plus a Control Panel R&S GB890. It is used for realtime remote control of handoff receiving equipment, over long distances preferably via additional modems. IF bandwidth configuration The R&S EK895/R&S EK896 features 13 bandwidths from 150 Hz to 8 kHz. Quasicontinuous tuning in 128 steps is available as an option. Input Filter Unit R&S FK890H1 (option) The input filter module comprises a lowpass filter, a bandpass filter and eight suboctave filters which are automatically selected with the receive frequency. BCD Interface R&S GC890 (option) A plug-in BCD interface is available for controlling frequency-dependent add-on units with parallel interfaces, e.g. a selective antenna. TTY Line Current Source R&S GH890 (option) For the operation of older teletype units that require line current (single/double current), a TTY line current source requiring no extra slot can be accommodated. Rear view of the R&S EK895 IF Converter R&S UX895 (option) The IF Converter R&S UX895 can be supplied as a submodule for incorporation into the IF/AF processor. Instead of the analog IF output signal of 0 to 40 kHz, it linearly converts the set receive parameters to the IF of 455 kHz. Digital Selection R&S FK896D (option for R&S EK896 only) This option considerably improves the input selectivity of the receiver. Two versions are available for 20 dB or 40 dB stopband attenuation. The automatically tracking selection circuit includes the following functions: ◆ 7-circuit lowpass (0 to 30 MHz) ◆ 5-circuit lowpass (0 to 1.5 MHz) for rejection of strong shortwave interfering signals ◆ Tracking single-circuit filter (1.5 MHz to 30 MHz) with a stopband attenuation of >20 dB (40 dB) at 10% spacing from the center frequency ◆ Switch on/off by remote control ◆ Input voltage protection of ≥200 V EMF The Digital Selection R&S FK896D is recommended for use in environments with strong RF interference (collocation problems). It improves input selection by automatically tracking the receive frequency and, at the same time, considerably increases input-voltage protection (overload protection). Operating concept Main menu: MOD GAIN BW SCA MORE Second menu level ↓ MOD Demodulation modes MORE: for further modes AM CW LSB USB MORE GAIN Control modes Auto, manual, auto+manual, auto+digital MORE: fast or slow control AGC MGC A+M A+D MORE BW Bandwidth BW ↓ BW ↑ SCA Scan mode Frequency sweep, channel sweep (any sequence), channel sweep (incremental), stop or continue sweep, program sweep FRQ CHP CHS S/C PRO The R&S EK890 family has a suitable operating mode for every application (see also page 8). The remote-control interface is configured to the RS-485 standard and is bus-compatible for system operation. Users who want to control their radiomonitoring system from the receiver front panel rather than from a computer can use the receivers of the R&S EK890 family as a master receiver or install the Remote Control Unit R&S GB899. MORE: M/S SYS SPEC CHM MEM ↓ M/S Master-slave operation ADR62 GET PUT Address slave (indicate slave address, e.g. 62), read out or vary slave settings SYS System status Read out firmware version, built-in options, error messages; start self-test; MORE: total reset VERS OPT CM BIT MORE SPEC Special functions Rotary knob: step size on/off; level setting for threshold-controlled external switching signal; show serial interface setting; switch to remote control; default settings on/off KNOB LEV SER REM DEF CHM Channel memory parameters Channel memory indication and channel-specific parameter variation without interrupting reception MOD GAIN BW THLD Setting of R&S EK895 down to second menu levelCLA CLCH STCH STO Channel memory operations MEM possibilities Clear all memory, clear certain memory, store to certain memory, use next free memory Broadband IF Output R&S GM893 (option) The optional broadband output (plug-in module) supplies a 1 MHz output signal at the first IF of 41.44 MHz (relative to a receive frequency of ±500 kHz). To prevent impairment of the receiver sensitivity of the main channel (message channel), the path to the broadband channel is decoupled by approx. 10 dB. For broadband spectrum analysis, a spectrum display can be connected to this broadband output. Digital data output (option) For further digital signal processing of the received signal, a separate digital IF interface (connector X 69 at rear) is available, delivering the digital DATA, CLOCK FRAME outputs (0 to 40 kHz, sampling rate 100 ksps). DATA LINK option If DATA LINK operation (MIL-STD-188203-1A) is required, special receiver versions are available. The softkey-menu operator interface provides the ergonomical advantage of clean front panel layout as well as access to a large number of setting parameters. When you insert extension modules, they are automatically detected and incorporated in the software BIT and the menu system. The clearcut operating concept of the R&S EK890 family has five menu levels which allow 50 logically structured operating routines to be called up by softkeys. In spite of the multitude of functions, operation is higly convenient, e.g. each type of modulation is assigned a default setting with all relevant parameters, which can also be individually programmed. The table to the left shows all possible settings down to the second menu level. For fast access to the setting parameters, the R&S EK896 has 12 additional hardkeys, e.g. for standard types of modulation, bandwidth variation, etc. 1.44 MHz IF output, unregulated (option) For connecting and operating an external IF spectrum display, e.g. the Digital Spectrum Display R&S EP090, an unregulated IF output at 1.44 MHz is available. This option uses the HF unit (model 03) and has to be ordered along with the basic receiver. Digital VLF-HF Receivers R&S® EK895/R&S® EK896 7 Control concepts of the Digital VLF-HF Receivers R&S EK895/R&S EK896 Remote control Local control … via PC or ASCII terminal RS-485 bus RS-485 bus R&S EK895 with control panel as a standalone unit or as a master receiver in systems R&S EK895 with front panel for remote control Search Receiver R&S EK896 … via the Remote Control Unit R&S GB899, model 03 Master-slave operation Slave receivers, max. 99 addressable 8 Digital VLF-HF Receivers R&S® EK895/R&S® EK896 Specifications Frequency range 10 kHz to 30 MHz Resolution 1 Hz Frequency drift –10 to +45°C aging/year Frequency standard 5 x 10 –7 1 x 10–6 Oven-controlled frequency standard 1 x 10–7 1 x 10–7 External frequency standard 1/5/10 MHz, 0.2 V to 1 V rms Antenna input BNC connector, 50 Ω VSWR <1.5 typ. with preamp on for f >250 kHz <3 typ. w/o preamp for f >5MHz otherwise <4 typ. Max. input voltage (≤30 MHz) Oscillator reradiation into 50 Ω termination Demodulation modes IF bandwidth (standard values) ≤10 µV CW/MCW (A1A, A1B, A2A, A2B) FAX1 (F1C) AM/AME (A3E, H2A, H2B, H2E) USB/ LSB (R2A, R3E, J2A, J3E) ISB (B8E) FSK/AFSK (F1A, F1B), F6 (F7B) FAX2 (F3C), FM (F3E) DATA LINK acc. to MIL-STD-188-203-1A (on request) 3 dB ±75 Hz ±150 Hz ±300 Hz ±500 Hz ±750 Hz ±1050 Hz ±1200 Hz ±1350 Hz ±1550 Hz ±2000 Hz ±2400 Hz ±3000 Hz ±4000 Hz 60 dB ±150 Hz ±225 Hz ±430 Hz ±770 Hz ±990 Hz ±1600 Hz ±1760 Hz ±1900 Hz ±2100 Hz ±3400 Hz ±3700 Hz ±4200 Hz ±5200 Hz Inherent spurious signals (f >100 kHz) <−113 dBm (nominal −124 dBm) Image frequency rejection >90 dB IF rejection >90 dB Weighted S/N ratio for 1 mV EMF >46 dB SINAD Gain control automatic (AGC), manual (MGC) or remote (DGC) AGC error ≤3 dB typ. (1 µV to 1 V EMF) Time response constants Attack time Decay time <15 ms 25/150/500 ms, 1 s, 3 s DGC range 0 to 120 dBµV EMF in 1 dB steps BFO −5.00 kHz to +5.00 kHz Resolution 10 Hz AFSK/FSK demodulator transfer rate (50 baud to 600 baud) and deviation range (±42.5 Hz to ±425 Hz) adjustable; V.28 interface and audible tone circuit Diplex telegraphy demodulator (F7B) 2 x V.28 interface Channel memory for 1000 channels, nonvolatile, storage of complete receiver setup for each channel Data interface RS-232-C, RS-485 (bus-compatible) Transfer rate 50 baud to 38400 baud Outputs AF output 1, AF (I) 0.3 kHz to 3.4 kHz; floating; Zout =600 Ω −10 dBm to +10 dBm Settling range 128 steps, 100 Hz to 9 kHz Sensitivity For S/N=10 dB, f=0.1 MHz to 30 MHz A1A (CW) J3E (SSB), J7B H3E (AME), 1 kHz, m=60% 0.4 µV EMF (−121 dBm), BW=300 Hz 1.0 µV EMF (−113 dBm), BW=2.7 kHz 2.7 µV EMF (−104 dBm), BW=6 kHz 480 mV rms, Zout ≈ 100 Ω 1.9 kHz ± 150 Hz in VLF range (f<500 kHz) 1.9 kHz ±400 Hz in HF range (f≥500 kHz) 1.9 kHz modulated NBFM (3 dB bandwidth: ±4 kHz) AF (Q) FAX1 (F1C) FAX2 (F3C) FM (F3E) AF output 2 (LSB in ISB mode) 0.2 µV EMF (−127 dBm), BW=300 Hz 0.4 µV EMF (−121 dBm), BW=2.7 kHz 1.0 µV EMF (−113 dBm), BW=6 kHz Immunity to interference, non-linarities Intermodulation (1.5 MHz to 30 MHz; ∆f ≥30 kHz; interfering signal 0 dBm) IP 2 IP3 Desensitization (interfering signal 300 mV EMF; ∆f ≥30 kHz; signal level 30 µV EMF; bandwidth 3.1 kHz) ≥20 dB SINAD 100 V EMF Quasi-continuous bandwidth (option for R&S EK895) With preamplifier, f=0.2 MHz to 30 MHz A1A (CW) J3E (SSB), J7B H3E (AME), 1 kHz, m=60% Blocking (0.1 MHz to 30 MHz; interfering signal 6.3 V EMF (+23 dBm); ∆f ≥30 kHz; signal level 1 mV EMF (−53 dBm); m=0.3; f=1 kHz) ≤1 dB signal attenuation Settling range Monitoring output 500 mV, Zout =332 Ω FM video output 1 V/kHz, Zout =1 kΩ IF (1.44 MHz) output (unregulated) BW (–3 dB): ≥10 kHz; gain: (18 ±2) dB, 50 Ω IF output (analog) 0 to 40 kHz in 100 Hz steps, 0 dBm into 600 Ω or 455 kHz, 0 dBm into 50 Ω (optional) IF output (digital) serial data (clock, data, frame), 100 ksps I/Q output (digital) baseband signal, multiplexed, 5 V CMOS >60 dBm (70 dBm typ.) >30 dBm (35 dBm typ.) Crossmodulation (0.1 MHz to 30 MHz, interfering signal 5 V EMF (+21 dBm); ∆f ≥30 kHz; m=0.3; f=1 kHz; signal level 10 mV EMF (−33 dBm)) ≤10% modulation transfer 0.3 kHz to 3.4 kHz, floating, Zout =600 Ω −10 dBm to +10 dBm Digital VLF-HF Receivers R&S® EK895/R&S® EK896 9 Options Control Panel R&S GB890 (model 03) Remote Control Unit R&S GB899 (model 03, on request) Broadband IF Output R&S GM893 (model 03) with controls and indicators for complete receiver setup; connector for loudspeaker or headphones (max. 1 W into 8 Ω ) Control Panel R&S GB890 plus R&S EK895 reduced to control functions, using RS-232-C with a transfer rate of 50 baud to 19200 baud; modem operation is recommended for distances beyond about 100 m Input Filter Unit R&S FK890H1 lowpass filter 0 to 0.5 MHz bandpass filter 0.5 MHz to 1.5 MHz 8 suboctave filters 1.5 MHz to 30 MHz BCD Interface R&S GC890 frequency information, 22 bit parallel (CMOS, 5 V) TTY Line Current Source R&S GH890 single current: 40 mA/60 V double current: ±20 mA/±30 V IF Converter R&S UX895 (on request) 455 kHz, 0 dBm into 50 Ω, BNC female Digital Selection R&S FK896D (R&S EK896 only) Frequency range 0 to 30 MHz, at f <1.5 MHz as LPF Stopband attenuation ≥20 dB (>40 dB: R&S FK896D, model 04) at 10% spacing from center frequency (f = 1.5 MHz to 30 MHz) Gain 0 to +2 dB Tuning time <10 ms Inband IP3 ≥34 dBm (≥30 dBm: R&S FK896D, model 04) Noise figure 13 dB typ. RF input voltage protection Response threshold ≥200 V EMF (Zin =50 Ω) >10 V EMF or >4 A 10 Digital VLF-HF Receivers R&S® EK895/R&S® EK896 Output frequency 41.44 MHz 3 dB bandwidth >1 MHz Attenuation <10 dB relative to antenna input Impedance 50 Ω Oven-controlled frequency standard aging/day ≤1 x 10 –9 (OCXO) General data Environmental conditions Operating temperature range Permissible temperature range Storage temperature range Humidity (non-condensing) to MIL-STD-810 D −10°C to +45°C −25°C to +55°C −40°C to +80 °C max. 95 % at +40°C Vibration test 10 to 55 Hz; 0.4 mm double amplitude Shock test 30 g, 11 ms EMC to MIL-STD-461/462 MTBF >14 000 h Power supply 100/120/220/240 V −15/+10%, 47 Hz to 420 Hz (approx. 25 VA to 75 VA, depending on model) Dimensions (W x H x D), weight R&S EK895 R&S EK896 211 mm x 132 mm x 460 mm, approx. 8 kg 426 mm x 132 mm x 460 mm, approx. 11 kg Ordering information Digital VLF-HF Receiver R&S EK895 Remote control via serial interface 6057.8996.02 With control panel; for local and remote control 6057.8996.12 With control panel; for local and remote control; with built-in OCXO 6057.8996.14 With control panel; for local and remote control; with built-in OCXO; LINK11 reception 6057.8996.17 With control panel; for local and remote control; with built-in OCXO; LINK11 reception; for use with external frequency standard 6057.8996.37 With control panel; for local and remote control; with 1.44 MHz IF output 6057.8996.63 Digital VLF-HF Search Receiver R&S EK896 Control panel with speaker; for local and remote control 6038.2509.12 Control panel with speaker; for local and remote control; with built-in OCXO 6038.2509.14 With control panel; for local and remote control; with built-in OCXO; LINK11 reception 6038.2509.17 With control panel; for local and remote control; with built-in OCXO; LINK11 reception; for use with external frequency standard 6038.2509.37 Plug-in modules (R&S EK895, R&S EK896) Preselection Unit R&S FK890H1 6007.7750.02 Digitally Tuned RF Selection Stopband attenuation 20 dB; for R&S EK896 only R&S FK896D 6077.3019.02 Digitally Tuned RF Selection Stopband attenuation 40 dB; for R&S EK896 only R&S FK896D 6077.3019.04 BCD Interface R&S GC890 6007.7809.02 Broadband IF Output R&S GM893 6051.8494.03 Transfer Software Package R&S EK890S3 6015.4492.02 Quasi-Continuous IF Bandwidth Control R&S EK895S7 6077.0510.02 Loudspeaker Unit R&S GA890L1 6041.6199.02 Remote Control Unit R&S GB899 6037.3501.03 TTY Line Current Source R&S GH890 6007.6054.02 Service Kit R&S KA890C1 6030.9004.02 19" Assembling Kit for two R&S EK895 Desktop model R&S KA890L1 6041.6699.02 19" Assembling Kit for two R&S EK895 For rack installation R&S KA890L1 6041.6699.03 Recommended extras (R&S EK895, R&S EK896) High-precision Oven-controlled Master Quartz Oscillator 6007.3255.03 IF Conversion to 455 kHz R&S UX895 6077.0261.02 19" Adapter Kit For one R&S EK895 and one blank panel R&S ZZA-98 0827.4533.00 Digital VLF-HF Receivers R&S® EK895/R&S® EK896 11 P.O.B. 8014 69 ⋅ 81614 München, Germany ⋅ Telephone +49 89 4129-0 ⋅ Fax +49 89 4129-13663 ⋅ www.rohde-schwarz.com PD 0758.0251.32 ⋅ Digital VLF-HF Receivers R&S® EK895/R&S® EK896 ⋅ Version 04.00 ⋅ June 2003 ⋅ Data without tolerance limits are not binding ⋅ Subject to change R&S® is a registered trademark of Rohde&Schwarz GmbH&Co. KG · Trade names are trademarks of the owners Rohde&Schwarz GmbH & Co. KG ⋅ Mühldorfstraße 15 ⋅ 81671 München ⋅ Germany Printed in Germany (Pe bb)
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