Eddystone_6200_broch.pdf

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1、Eddystone Radio MODEL 6200 VLF/HF RECEIVER SERIES 6200 FEATURES Sealed membrane keyboard front panel with illuminated LCD display. Easy to operate. Tuneable in 10Hz steps. Rugged construction. Built-in test equipment (B.I.T.E.). NATO Codified Frequency coverage 10kHz to 30MHz. Independent sideband o

2、peration in 2U size. Non-volatile 99 channel memory, with scan and sweep facilities. Remote control facility. Frequency Coverage 1600kHz to 30MHz in 10Hz increments. 10kHz to 30MHz /A and /F options. Reception Modes and Variants AM, USB, LSB, CW : /2 variant. AM, USB, LSB, CW, ISB : /3 variant. FSK

3、: /K option. Reception Bandwidths SSB/ISB -6dB 300Hz to 2700Hz -60dB -400Hz and 3400Hz Wide -6dB 3kHz -60dB 10kHz Intermediate -6dB 1.2kHz -60dB 1.9kHz Special To customer order. Up to 2 additional filters (/C option). RF Selectivity Wideband over specified range on all but /A option which has sub-o

4、ctave filters above 1600kHz. BFO 2.4kHz in 100Hz steps derived from master oscillator. Stability On /X option all frequencies derived from internal master oscillator giving 0.1ppm stability over 10c to +50c. Option for 8720kHz external standard with no internal standard fitted (/S option). Search Tu

5、ning Frequency selectionby tuning knob with any step in range 10Hz to 99.99kHz (10Hz increments) or with automatic variable rate with 10Hz resolution. Frequency can also be directly entered via numeric keyboard with 10Hz resolution. Stored Channels A maximum of 99 channels can each be stored with fr

6、equency, mode, bandwidth, AGC, RF sensitivity and BFO offset settings. On /B option receivers, the selected antenna can be stored and on /T option recivers, the scan start and stop times. Channel contents can be interrogated and changed without interruption of the signal being received. A lithium ba

7、ttery backed up RAM retains the contents of all channel memories in excess of 10 years without the external supply. Scanning Any number of the 99 stored channels can be automatically scanned with a dwell time on each channel or between 0.1 and 9.9 seconds (0.1 second steps). If squelch is selected,

8、the scan will halt on channels with signals above the set threshold and remain there for a hang period after the signal ceases. This hang period can be set between 0 and 9 seconds (1 second steps). At all times, the scan position can be altered using the main control knob and can be stepped on or ha

9、lted using the rear panel hold scan/sweep input. On /T option receivers, selection of channels by time of day or week is also provided. Sweeping Automatic tuning using the selected step can be performed using the frequencies stored in adjacent channel memories as limits. The receiver remains on each

10、 step for the selected dwell period. If a step of 5kHz or more and squelch are selected, the sweep will halt on steps with signals above the set threshold, and remain there for a hang period after the signal ceases. This hang period can be set between 0 and 9 secongds (1 second steps). At all times,

11、 the sweep position can be altered using the main control knob and can be stepped on or halted using the rear panel hold scan/ sweep input. BITE (Built In Test Equipment) In BITE mode, tests can be made using internally fitted test equipment to aid fault finding, general test and maintenance procedu

12、res. In all modes, the BITE monitors various parameters and provides immediate indication of a potential fault which can be investigated in BITE mode, providing fault finding to module level. Remote Control All magor functions, except audio gain, can be controlled and interrogated using 1200 Baud as

13、ynchronous data at RS232c level. Standard modems (V22 or V23), multiplexers, line drivers and RS422a adapters can be used to provide control over half or full duplex, two or four wire links as required. Squelch Audio squelch is derived from carrier/sidband level, with squelch threshold level adjusta

14、ble from the front panel. Twin bargraph meters are provided to simultaneously display squelch and signal levels. RF Attenuation Attenuation of 0dB, 10db, and 30-50dB is available. Antenna Input 50 Ohm unbalanced input, BNC connector. Overload protection is provided for continuous application of an e

15、mf of 50V rms from a 50 Ohm source. Internal reed relay controlled (by contact to ground) from associated transmitter open circuits receiver antenna input during transmission. Audio Output External Loudspeaker : 1W maximum into 4 or 8 Ohms. Internal Monitor speaker : 1W maximum. Line : 20mW maximum

16、into 600 Ohms. Headphones : 10mW maximum into Low/Medium impedance. Intermediate Frequencies 45MHz 1st IF 1.4MHz 2nd IF Power Supply 100V/130V and 200V/260V AC 40Hz-60Hz single phase. A.C. consumption 30VA maximum. Operation from a 19-32V DC supply (negative ground) will continue in the absence of a

17、n AC supply. DC current consumption approximately 1.8A at 19V to 1A at 32V. Environmental Operational temperature: -15 to +55C Storage temperature: -20C to +70C Relative jumidity: 95% at +40C Mounting Styles (19” rack mounting) Height 88mm (2U) Width 483mm (19 inches) Depth 440mm (intrusion into rac

18、k including cable) Weight 12kg Sensitivity (400kHz to 30MHz) AM: 1.8V emf input 60% modulated at 1kHz, for 10dB Sinad (S+ N/N) at line output, with 6kHz selectivity. SSB: 0.6V emf input with 1kHz audio output, for 10dB Sinad (S+ N/N) at line output, with 2.4kHz selectivity. CW: 0.4V emf input with 1

19、kHz audio output, for 10dB Sinad (S+ N/N) at line output, with 2.4kHz selectivity. These correspond to a noise figure of 12dB. AGC Less than 4dB Change in audio output for 100dB increase in input level above AGC threshold (typically +3dBV emf). Choice of three time constants in addition to manual ga

20、in to suit mode selected. Image 100dB (1st) 80db (2nd) IF Rejection 100dB. Intermodulation (in-band) The level of third order intermodulation products produced by two in-band signals of +90dBV emf will be at least 45dB below the level of either signal. Intermodulation (out-of-band) With a wanted sig

21、nal +10dBV emf producing standard output, two unwanted signals adjusted to produce a third order intermodulation product equal to standard output at the wanted frequency, must be greater than +90dBV emf when at least 30kHz removed from the wanted requency. This is equivalent to a third order interce

22、pt point of +17dBm. With a wanted signal of +10dBV emf producing standard output, two unwanted signals adjusted to produce a second order intermodulation product equal to standard output at the wated frequency, must be greater than +80dBV emf when each is approximately half the wanted frequency. Thi

23、s is equivalent to a second order intercept point of +37dBm. This figure is increased for wanted frequencies above 1600k when the sub-octave preselector is fitted (/A option receivers). Cross Modulation With a wanted signal of +60dBV emf producing standard output, an unwanted signal, of level +100dB

24、Vemf at 20kHz off-tune, modulated 30% at 1kHz, will produce an output at least 30dB below standard output. Reciprocal Mixing The level of a signal 20kHz removed from the tuned frequency will be at least +95dBV emf to produce a noise signal equivalent to 0dBV emf at the tuned frequency (USB/LSB/ISB m

25、odes). Blocking With a wanted signal +60dBV emf, output will be affected by less than 3dB by an interfering singla 20kHz off-tune at leval +110dBV emf. Antenna Radiation The level of radiated signals at the antenna socket will be less than 2V pd across 50 Ohms. MTBF At least 30,000 Hours to BT HRD4

26、(British Telecom). Options (Standard Options are F and X) /A Frequency coverage 10kHz 30MHz with sub- octabe preselector above 1600kHz. /B With 8 bit parallel data output, indicating selected antenna number (enabling control of antenna selecting switches or other similar equipment). This output can

27、be factory programmed to provide other status/control signals if required. When supplied with /T option, time scan output control signals are provided. This is not available with option A. /C With additional customer specified filters to a maximum of two, normally 300Hz / 1KHz. /F Wideband input giv

28、ing operation 10kHz to 30MHz (reduced performance below 400kHz). /I With 1.4MHz intermediate frequency output (not available on ISB variants). /K With internal FSK demodulator, providing FSK demodulation for frequency shifts from 85Hz to 1100Hz and corresponding keying speeds up to 300 bauds, at RS2

29、32c output level. /S External standard operation. /T With real time clock allowing channel scanning by time of day or week /X High stability internal master oscillator. /Z Noise Blanker (N/A on ISB Variants) Note: /I & /S are mutually exclusive, as are /Z & /K and /X & /S. Ancillary Equipment Remote

30、 Control Systems External Frequency Standards Antennas Bench Cabinet Ring Communications (UK) Ltd 5 Bartholemews Walk, Cambridgeshire Business Park, Ely, Cambridgeshire, CB7 4HS. Telephone +44 (0) 1353 616400 Facsimile +44 (0) 1353 616424 Web www.RingUK.com Email salesRingUK.com This document gives only a general description of the product(s) and shall not form part of any contract From time to time changes may be made in the product(s) or conditions of supply VLF/HF RECEIVER MODEL 6200