- optionalencoder (optional)

backup (optional)Standard or analog GPIO (optional)

AMI - Advanced Metering Interface (optional)SNMP (optional)

At the heart of all FM transmitters in the ELTI range is digital synthesizer-based modulator. From program inputs right through to the final conversion to RF, signal generation and control are performed entirely by digital means. This ensures an exceptionally pure, crystal-clear audio signal with the highest audio fidelity.

The new line of ELTI FM Transmitters provides the highest overall efficiency available on the market, up to 74%! Such tremendous performance can only be achieved by using the latest available technologies combined with an innovative design.

Available in several redundancy concepts (optional)

4

Frequency range

Output impedance

Frequency stability

Spurious and harmonic suppression

FM S/N ratio

Typical AM noise

Bandwidth

Stereophonic crosstalk

Preemphasis

SFN

Processing

87,5 to 108 MHz in 10 kHz steps

50 Ω

≤ 10 per year

≥ 75 dBc Meets or exceeds all ETSI requirements

≥ 80 dB @ 75 kHz deviation

< 0,1% (50 dB) RMS (20-20.000 Hz)

> 20 Hz to 15 kHz @ 0,1 dB

< -50 dB

Optional, 10 MHz input and configurable delay on all program inputs

AGC average gain control, FM Limiter, MPX Power Limiter: conforming to ITU-R 412

Analog stereo audio input

AES

2 x MPX / RDS / SCA inputs

Ports

Power range

VSWR

10 MHz input range

Standards

Marking

Transmitter control via

Front panel

Continuously adjustable from 10% maximum power up to maximum power

< 1:1,1 typical, hardware protection and automatic lowering FWD power if RFL exceeded

-10 dBm to +10 dBm

1999/5/CE (R&TTE), ETS 302 018 (EMC), ETS 300 384 (Radio), NF EN 60215 (Safety)

CE

Front panel, Web GUI, SNMP (v1 and v2c), GPIO, Telnet, RS232

LCD display, LED indicators for CPU, Fault, Warning, RF -3dB, VSWR, Interlock

Efficiency & Efficiency Loss

Power supply

Frequency range

Operating temperature

Humidity

Type and nominal power

Maximum power

Efficiency

Size

Depth

Weight

RF out

FMT 100W

110 W

up to 55%

FMT 300W

320 W

up to 70%

2U

432 mm

6,5 kg

Nf

475 mm

13 kg 14 kg 20 kg

670 mm

3U

DIN 7/16

FMT 750W

750 W

up to 74%

FMT 1000W

1.050 W

up to 72%

FMT 1500W

1.550 W

up to 72%

FMT 2000W

2.050 W

up to 72%

Efficiency up to 74% & efficiency loss @ -3dB < 5%

Single phase: 230V ± 15%

Three phase: 3/N/PE ~ 400/230V ±15%

47 to 63 Hz

0°C to 50°C

5-95% non-condensing

balanced XLR, impedance 110 Ω, bandwidth SW adjustable, level: SW adjustable -20 dBfs and 0 dBfs, sampling frequency auto adjusted up to 192 kHz, word length SW adjustable

between 16, 24, 32 bit

BNC connector, impedance > 5 kΩ unbalanced, level SW adjustable between -18 dBµ and +18 dBµ

RS232, TCP/IP (RJ45), CAN port

INPUTS

RF

STANDARDS AND MARKING

CONTROL AND MONITORING

ENVIRONMENTAL CONDITIONS

Standalone low and medium power FM transmitters

-6

balanced XLR, impedance 600Ω - 10kΩ, level: SW adjustable

FMT 3500W

1 x 3.500W

19” Rack 23U

higher power available on request

135 kg 143 kg 181 kg 270 kg

19” Rack 30U 19” Rack 42U 19” Rack 42U

EIA 7/8” EIA 1 5/8”EIA 1 5/8”EIA 3 1/8 EIA 3 1/8

2 x 3.500W 3 x 3.500W 4 x 3.500WAmplifier

RF output

External dimensions

Weight

FMT 7000W FMT 10000W FMT 14000W

High power FM transmitters – scalable solutions

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