| QUESTION | ANSWER |
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I believe your NDB system either Priovd-3 or ARM-150M can make transmitter hot-standby configuration, correct? Is the hot-standby configuration automatic changeover? Is the auto changeover an external device or built-in device in the transmitter? |
The both have the standby channel, but it is switched off and switched on if the main channel is break down (failure). In this case changeover is provided automatically with built-in control device. |
Is the teamwork of non-directional beacon "YANTAR-2M-200" with foreign differential base stations provided? |
Yes, it is. The integration is provided with a special unit which is supplied with radiobeacon. Also radiobeacon "YANTAR-2M-200" is provided teamwork with a base station operated over NMEA 183, or over base station's connection unit over multicard PCL 812 HD (HG). |
How is provided the reliability and guaranteed life of radio beacons? |
All non-directional beacons have the redundant system. At the same time the SPTA set has spare units which allow restoring the operation of beacons. It is necessary to repair these units on the factory - manufacturer. |
What measures are accepted for protection of radio transmitters against influence of lightning discharges? |
The lightning protection unit includes as a component of radiobeacon and provides protection against direct hit of lightning. Also the transmitter circuit has protection elements of output transistors against surge voltage. |
With what antenna systems can be delivered helicopter homing beacon"PRIVOD-3"? |
To be delivered the various aerial types. It depends of a helicopter platform site, concrete Customer's needs and requirements. For example, for a sea site (ice breaker, drilling platform etc.) can be supplied the helipad antenna system "Koltso-2", and for a ground site can be delivered antennas "AZM-8" or "AZM-20", or T-type Antenna. |
Is the production of antennas "AZM-8" and "AZM-20" certified? |
Yes, of course. The Certificate ¹23 of 18.02.2002 (valid until 18.02.05), given by Interstate Aviation Committee, Commission for Aerodrome and Equipment Certification. To be sent on request. |
How are protected lamps and target keys of flasher (optical lantern-flasher "SOPHAL-85")? |
If one of filaments burns out or there is a short circuit of a power circuits, the flasher ("SOPHAL-85") is switched to a serviceable filament automatically. The flasher disconnects high current circuits at excess of an allowed supply voltage. |
How much is MTBF (mean-time-between-failures) of such products as modulator "MSK-2BK", "PKI-2" and aerial "AK-1"? |
The MTBF of the given products at influence of all destabilizing factors makes 20000 hours. Under the normal climatic conditions the MTBF is till 50000 hours. |
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