Exciters
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1050 W maximum output power continuously adjustable by external control.Ideal as stand-alone transmitter or versatile exciter for power amplifiers. 87.5 ÷ 108 MHz. Instant internal or front panel ( /C option ) frequency programmability with 10 KHz steps. No tuning or adjustments required. Digital stereo coder. High performances built-in digital stereo coder (/S option) with stereo separation (> 65 dB) and signal/noise ratio (> 80 dB) for a top sound quality. Audio processor. High performances built-in stereo audio processor (/P option) with wide range compression threshold and release time adjustments. Fully compatible with digital audio mixing consoles. Remote control. Full remote control capability (/R option) with all main parameters in internal optional board. Power output adjustment, on/off, alarms reset, Pfwd, Pref, frequency deviation measurement and alarms status are the main possibilities of remote control function. FSK IDer. FSK option makes the FT transmitter series fully compatible with FCC automatic identification system. Top quality sound. The generated signal is characterized by an excellent signal/noise ratio and by negligible residual AM and FM. All this guarantees the best quality of the broadcast signal. High frequency stability in short and long terms is assured by Digital Phase Locked Loop circuit with low drift quartz. For better frequency stability the /HS option is available. Deviation limiter. Limits the maximum frequency deviation to a value within the international requirements. This is to avoid adjacent channels invasion in case of accidental over modulation. Electronic protections: in event of overvoltage (O.V.P.) or transmitting frequency error (LOCK) or mismatching (VSWR) or overtemperature (TEMP) the power output is automatically reduced to keep your station on the air. Every alarm event is displayed by front panel LEDs. Meters: forward power, reflected power, frequency deviation, all internal mains power supply voltages, L & R, MPX levels are continuosly displayed by front panel meters. Adjustments and settings. Output power (PWR adj.), frequency deviation (DEV adj.), transmitting frequency (with /C option), compression threshold and level together with release time (with /P option), manual/remote function (with /P option), mono/stereo function (with /S option) are front panel available for instant adjustment and setting. Switching mode power supply. High efficiency switching mode power supply gives greater reliability and reduce the power consumption. 48 Vdc battery operation is also available as option (/VDC-48). Meets or exceeds international standards for safety and electrical specifications. |
Exciters
RF Data
Output frequency range: 87.5 ÷ 108 MHz
Output frequency setting Synthesized with PLL, 10 kHz step (front panel
digitswitches microprocessor controlled with /C option)
Output impedance: 50 ohm
Output connector: DIN 7/16"
Continuos output: power from 0 to 1050 W front panel adjustable
Thermal drift: (0 ÷ 50° C) ± 1 kHz (better on request)
Aging drift: ± 300 Hz year
Harmonics: < - 72 dBc
Spurious: < - 80 dBc
AF Data
Mono operations:
Input level: -10÷+12 dBm adj.
Input connectors: XLR female/bal.
Input impedance: 600 ohm
Bandwidth (± 0.25 dB): 20 Hz÷15 KHz
Pre-emphasis: 50/75 µs selectable and bypassable
Deviation: from pre-emph. curve ± 0.5 dB
FM S/N ratio: (±75 kHz deviation at 1 kHz, 50 µs de-emph.) = 80 dB (typ. 82 dB)
THD: < 0.1 % (typ. 0.08 %)
19 kHz attenuation: = 55 dB
AM syncro residual (ref. 100% mod.): < -64 dB
AM asyncro residual (ref. 100% mod.): < -68 dB
Stereo operations (MPX input):
Input level: -10÷+12 dBm
Input connector: BNC, unbal.
Input impedance: 10 ohm
Bandwidth: (± 0.1 dB) 20 Hz÷100 KHz
FM S/N ratio: (±75 kHz deviation at 1 kHz, demodul., 50 µs de-emphasis) = 74 dB (typ. 76 dB)
Stereo separation: (20 Hz÷15 kHz) = 62 dB (typ. 65 dB)
THD: < 0.2% (typ. 0.1 %)
Stereo coder characteristics (option /S):
Input connectors: (L&R) XLR, bal.
Input impedance: 600 ohm
Input levels: -10÷+12 dBm
19 kHz attenuation: = 55 dB
Bandwidth: (± 0.25 dB) 20 Hz÷15 KHz
S/N ratio: (±75 kHz dev. at 1 kHz, demodul., 50 µs de-emphasis) = 80 dB (typ. 82 dB)
Stereo separation: (20 Hz÷15 kHz) > 65 dB (typ. 68 dB)
THD: < 0.1% (typ. 0.08%)
SCA 1, SCA 2, SCA 3
Input level: 2.2 Vpp per 7.5 kHz dev.
Bandwidth: (± 0.25 dB) 40 ÷ 100 kHz
± 12 V, + 48 V, forward and reflected power, MPX level , 19 kHz,
L & R, deviation Alarms
VSWR, Overtemperature Power supply
Operating voltage: 110/220/240 Vac ± 10 %, 50/60 Hz single phase
Power consumption: (at maximum output power) 1670 VA
Battery operation: (opt.) 48 Vdc Operating conditions
Cooling: air forced, 24Vcc axial fan
Temperature range: - 10° ÷ + 45° C
Humidity: 95% max. Weight and size
Weight: 58 kg
Dimensions: (W x H x D) 433 x 175 x 585 mm
Cabinet: 19"x 4U Options
Front panel frequency setting: /C
Stereo coder: /S
Audio processor: /P
Remote control interface: /R
FSK IDer. for FCC automatic identification system: /K
High frequency stability< 300 Hz: /HS
Additional 2 x SCA/RDS inputs: /SCA3
48 VDC power supply: /VDC-48
ITEL S.r.l. TELECOMUNICATIONS AND BROADCASTING SERVICES Via Friuli, 4 - 33074 Fontanafredda (PN) - ITALY Tel. +39 0434 997667 - Fax. +39 0434 997687