SERVOSEA^tm   2100M Series

Direction Finder Systems

Specifications

Operating Characteristics

Interface Requirements

Power Requirements

 Environmental Characteristics

SPECIFICATIONS

 Model        Freq.       Aperture        Dipoles       Local       Remote      

2105M      VHF        MEDIUM          8                    Yes

2110M      VHF        WIDE                16                  Yes

2115M      VHF        MEDIUM           8                    Yes             Yes

2120M      VHF        WIDE                16                   Yes              Yes

OPERATING CHARACTERISTICS

Principle of Operation:                Quasi Doppler

Bearing Accuracy:                      +/-1 ° (Instrumental)   3° (Site)

Vertical Angle Coverage:             0°     (Horizontal) to 60 ° elevation

Frequency Range:                       116 to 174 MHz

Operating Channels:                    2320; Scans 100

Channel Spacing:                         25 kHz

Channel Selection                        Keypad; Up to 100 preset channels (with scanning)

DF Sensitivity :                            5 uV/m field strength for indicated bearing within ± 2 deg.

Operational Control:                    Local or Remote

Receiver Characteristics

• Sensitivity (AM)   1.5 uV for l0dB (S + N) IN with 30% AM at 1000 Hz
• Selectivity (IF)      VHF: 6dB Passband t 10 kHz; 60 dB Rejection ± 18 KHz
• Image, Spurious, EF Rejection 80 dB to within 100 kHz of Channel Frequency
• Demodulation Audio Out VHF: AM 11 5.975 to 143.975  FM 144.000 to 174.025
• Frequency Accuracy - 15 ppm

Bearing Display:         Ring- of -Lights: 72 LEDs every 5 deg. on surrounding compass rose

                                     Digital: 3 Digits:   (000 to 359deg.) with 7-Segment LED Indicators

Audio Output:      Speaker or Headphone Jack adjustable to maximum output of at least + 10 dBm to 600 ohms

Local/Remote Interface:     FSK Data, frequency multiplexed with audio, over 4 -wire voice grade 600 ohm telecom circuit or other transmission mode.

EXTERNAL INTERFACE

RS232, 300 baud data link for connection to a modem

EXTERNAL POWER REQUIREMENTS

Receiver/Bearing Processor 150 watts

Bearing Display/Control 100 watts

Antenna Arrays 200 watts (for obstruction lamps on wide-aperture type only)

ENVIRONMENTAL CHARACTERISTICS

Receiver/Bearing Processor :    40, to + 601 C; Humidity up to 90%

Bearing Display/ Control :        40' to + 60 deg. C; Humidity up to 90%

Antenna Arrays:                       Withstand wind velocity 0 to 100 mph with 0.50 inch ice loading;  -50°C to + 70° C; Humidity up to 100%

DIMENSIONS & WEIGHT

Receiver/Bearing Processor                                                Bearing Display/Control

Height 17.8 cm (7 in.)                                                         Height 17.8 cm (7 in.)

Width 48.3 cm (19 in.)                                                       Width @.3 cm (19 in.)

Depth 50.8 cm (20 in.)                                                       Depth 50.8 cm (20 in.)

Weight 17.6 Kg (39 lbs.)                                                   Weight 16.7 Kg (37 lbs.)

For further information please call 516 938 9700 ext 352 or email us.

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