EMRY1410N
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Aeronautical and Maritime Radiocommunication Systems The EMRY1410N unit is a UHF ground transceiver derived from the TELERAD 900 series technology which already proved its utmost reliability. It is designed to meet the needs of aeronautical radio communications in the UHF band, in amplitude modulation (A3E). According to the version, it can be exploited in FM mode (F3E). It is specially designed for voice communication in control towers, control shelters or ships. The frequency range extends from 225 to 400 MHz, in 25 kHz or 12.5 kHz channel spacing. Up to 99 channels can be programmed by the operator, including for each channel the output power (high or low) and the squelch threshold level. The EMRY1410N can be adapted to various installations. Mainly designed to be operated by a controller from a front panel with all the requirement elements and allow ergonomics, the set is also equipped with all access means required for remote operation and control/supervision serial link. The human-machine control interface is a combination of a keyboard and a display of 4 lines of 20 characters, with everything operated in “menus” mode. The rear panel has separated access for transmission and reception antennas, as well as a coaxial relay location to allow a single antenna to be connected. Scanning of a maximum of 10 channels is available on this equipment as an option. The transceiver is 19" wide and 3U high, and can be supplied in rack mounting version. Two power supplies are available: 24VDC voltage and 100-240VAC mains voltage (according to the version).. GENERAL CHARACTERISTICS Frequency range: 225-400 MHz Modulation types: A3E (any versions) F3E (EMRY1410NFx versions) Channel spacing: 25 kHz and 12.5 kHz Preset channels: 99 preset channels with frequency, bandwith, power level, squelch threshold level parameters Frequency accuracy: 1 ppm between -20°C and +55°C Remote control: By serie link RS 485, under JBUS protocol or current loop 0/20mA Radio Tx inhibit: Locking of a loop to the ground to forbid transmission Power supply: AC: 85-265 V, 47-63 Hz DC: 21-31 V (rated 24 V) 40300044 V2.4 This sheet is available on the site www.teler

TRANSMISSION Operation over a 225-400MHz wideband without adjustment. Output power under 24 V=: 50W + 0.5dB rated power, adjusted down to 10W by the user. Power on load mismach : Normal operation up to SWR = 2. Gradual power reduction for SWR > 2. No damage on infinite VSWR A3E modulation: Modulation rate: > 85% Harmonic distortion: < 5% at 1 kHz (Typ. 1%) AF bandwith at 3 dB in 25 kHz mode: > 300-3400 Hz < -30 dB at 5000 Hz Residual modulation: < -50 dB (0 dB at 85% MOD 1000 Hz) (Typ. 55 dB) F3E modulation (EMRY1410NFx versions) : Frequency excursion: 4.25 kHz + 0.5 dB (at 1 kHz)...