MARTI GTX/GRX SERIES 1350 MHz – 2484 MHz Range
GTX-1300, GTX-1400, GTX-1500, GTX-1600, GTX-1700
RTX-1300, RTX-1400, RTX-1500, RTX-1600, RTX-1700
Factory preset frequency ranges 1350÷1375 MHz 1370÷1390 MHz 1429÷1433MHz 1510÷1530MHz 1660÷1670MHz 1700÷1725MHz 1725÷1750MHz 2367.5÷2372.5MHz 2440÷2.450MHz 2468.1÷2483.3MHz Other sub-ranges on request - Modulation: FM, 75 kHz peak dev.
180kF3E in mono 256kF3E in stereo - Synthesis step: 25kHz
- Frequency error: <2.5 ppM 3' after power-on
- RF output power 2W / 5W (1.3÷2.5 GHz)
- RF harmonic products: <-60 dBc, -70 dBc typ.
- RF spurious products: <-70 dBc, -80 dBc typ.
- Audio/mpx input level: -3.5 ÷ +12.5 dBm @ ±75 kHz deviation on female XLR conn.
- Aux channel input level (on 10 k ohm):
-12.5 ÷ +3.5 dBm @ ±7.5 kHz dev. -24 ÷ -8 dBm @ ±2 kHz dev. - Transmitter LF monitor output level:
0 ÷ +10 dBm @ ±75 kHz dev. - Deviation limiter: adjust. between 0 and > +7 dB
- Pre-emphasis time constant: 0 / 50 / 75 µs ±2%
- Mpx/mono output level: -1.5 ÷ +12 dBm,
0.5dB/step on male XLR - S/N ratio (30÷20000 Hz. rms):
≥75 dB >80 typ. mono ≥72 dB >76 typ. stereo
| - Modulation distortion @ 1kHz / 100% dev.: mono ≤0.1% 0.03% typ.
stereo, 1ch ≤0.30% 0.20% typ. - Stereo crosstalk (typ): <-50 dB (100 ÷ 5000 Hz)
<-45 dB (30 ÷ 15000 Hz) - Audio channel freq. response:
30 Hz ÷ 15 kHz ±0.1dB - Wide-band demodulated LF output:
15 Hz ÷ 120 kHz +0.1/-3dB - Usable input level: -90 ÷ -10dBm
(7µV÷70mV) - Sensitivity (typ): Sin= -90dBm (7µV) mono (S/N=60dB) Sin= -70dBm (70µV) stereo
- Dynamic selectivity: >+10dB typ @ δF=300 kHz
>+35dB typ @ δF=500 kHz >+45dB typ @ δF=1.0 MHz - I/O lines: RF/LF disable, Direct pw, On the air, Low field, Alarm
RS232 for monitoring and control - Mains supply: 90 ÷ 260 Vac 50/60 Hz 45 W (<15W Rx)
- Battery backup/supply: 22.0 ÷ 28.0 V
≤1.8A @ 24V (0.4A Rx) - Operating temperature range: 0 ÷ 35 °C recomm.
-10 ÷ 45 °C max - Dimensions without handles: 19" 1 un. std. rack
(each unit) 483 x 43.5 x 320 mm - Weight: 4,0kg (Tx), 3,5kg (Rx)
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