NDB-SS05

DUAL NON-DIRECTIONAL BEACON SYSTEM

DISCONTINUED - FOR REFERENCE ONLY

 

IN TROUBLE-FREE OPERATION SINCE 1985!

NDB-SS05 TX

NDB-SS02 CU

 

The NDB-SS05 is a complete Dual Non-Directional Navigational Beacon system built to ICAO Annex 10 requirements. It is designed for continuous duty, outdoors operation, easy maintenance and is supported by a full complement of accessories and spare parts.

Features

Dual system - automatic switchover

All-weather enclosure

Modular construction

Microprocessor controlled

No special programming tools

Built-in fault detection

Remote control option

Dual Transmitter

The NDB-SS05 TX dual transmitter system is built using two system modules which operate independently and allow for easy field replacement. All modules are easily accessible. Output current, sub-module voltages, modulation and internal temperature are continuously monitored by a digital microprocessor and displayed locally on the built-in instrument or remotely, via the optional remote control. The output current is also displayed on the antenna coupler analogue meter. Faults are easily detected and traced to the module level using the built-in LED indicators, test points and measuring instruments.

In case of a serious malfunction (power output reduction to 50% or less, absence or continuous presence of modulation) an alarm is generated and the stand-by unit is placed in operation automatically. In case of mains power failure the unit automatically switches to battery power and back. Batteries are automatically recharged by the built-in charger.

Transmitter frequency selection is made either through a crystal change or by synthesizer programming. Beacon identification (IDENT) is jumper-selectable; no special programming tools are required.

In addition to the Morse-code output, the transmitter carrier may be voice-modulated via a microphone or line input.

Both transmitter and antenna coupler units are housed in weatherproof enclosures, suitable for all-weather operation.

Monitor Receiver

The NDB-SS02 RX monitor receiver is a self-contained unit, suitable for rack mount or stand-alone operation. The receiver provides alarm indications on IDENT absence or loss of carrier. Receiver frequency selection is made either through a crystal change or by synthesiser programming. Audio output is provided both via a built-in speaker and 600 line.

Remote Control

The NDB-SS05 RC allows remote reporting of system parameters and alarm indications as well as control of the NDB via dial-up or leased line and local control via a personal computer. Commands include transmitter selection, system shut-down, locator and auxiliary output control.

Locator beacon ON/OFF remote control is possible via the NDB-SS02R VHF unit that responds to the approaching aircraft's VHF transmitter repeated PTT activation.

Specifications for the NDB-SS05 TX Dual Transmitter

Frequency Range

250 to 550 kHz (crystal or synthesizer controlled, user selectable)

Frequency stability

Better than 10 ppm

Emission Mode

NON / A2 (1020 Hz or 400 Hz tone), A3

Modulation Depth

0 to 97 %

Identification Code

International Morse Code (IDENT), 64 dot Morse keyer, user-selectable

Voice Input

200 dynamic microphone or 600 line input

Power Output

0 to 30 W RMS, continuous duty (100%)

Spurious Outputs

- 60 dB relative to rated output (crystal operation), - 50 dB (synthesizer operation)

Audio Distortion

less than 3%

Power Input

220 VAC 50 Hz 500 VA 15% or 48 VDC / 10 A 10%

MTBF

20 000 hours

MTTR

20 minutes (modular design for rapid maintenance - repair by replacement)

Availability

100% (fault tolerant - dual system concept with automatic changeover)

Operating Temperature

-20 C to +55 C

Humidity

0 - 100% (designed for outdoor use, rainproof to IP55)

Approvals

Hellenic Civil Aviation Authority, Hellenic Army Aviation Corp. Meets all the relevant requirements of ICAO Annex 10 pertaining to NDBs.

Dimensions

65W x 85H x 20D cm

Accessories Included

Battery Charger (48V / 5A), Dummy Load, Testing Instruments,locator control

NDB-SS02 RX

NDB-SS05 RC

Specifications for the NDB-SS02 RX Monitor Receiver

Frequency Range

250 to 550 kHz (crystal or synthesizer controlled, user selectable)

Frequency Stability

Better than 10 ppm

Sensitivity

Better than 1V for 10dB S/N

Selectivity

Better than 80 dB for 25 kHz separation

RF Input

50 ohms

Audio Output

1 W to internal 8 ohm speaker, 600 ohm line output 0 to +10 dBm

Power Input

220 VAC 50 Hz 10%

Dimensions

19", 2U rack mount or table-top

Specifications for the NDB-SS05 RC Remote Control

Modulation

FSK

Interface

Dial-up, leased line, direct RS-232

Parameters Monitored

Sub-unit AC/DC voltages, output current, output power, modulation, temperature

Control Outputs

Transmitter selection (No 1 or No 2), system shut-down, antenna lights output, auxiliary output

Power Input

220 VAC 50 Hz 10%

Dimensions

19", 2U rack mount or table-top

Standard Equipment

NDB-SS05TX

TRANSMITTER (dual) including:
- Battery Charger
- Dummy Load
- Testing instruments

NDB-SS02CU

ANTENNA COUPLER

NDB-SS05MAN

Operator's and Technical Manual

Optional Accessories

NDB-SS02AT1

ANTENNA KIT type (without masts and counterpoise i.e. ground radials)

NDB-SS02AT1-

for Antenna masts and counterpoise

NDB-SS02RX

MONITOR Receiver

NDB-SS05RC

Remote Control Unit including software for PC/DOS type computer

NDB-SS02RVHF

/FF Remote Control via Aircraft VHF transmitter

NDB-SS02SBAT

Battery SET

NDB-SS02LIG

Antenna LIGHT

List of Services Offered

Training
Pre-Installation
Installation
Post-Installation

Operator, Maintenance Personnel
Site survey and installation study
Installation, Setting to work
Preventive maintenance, After sales technical support

SSA

 SSA S.A. Ethnikis Antistaseos 84, 152 31 HALANDRI, GREECE
Tel: (+30) 2106725106 Fax: (+30) 2106726682
Tlx: 225644 SSA GR E-mail: ssa@ssa.gr