Castel ETS-250

250W AM Transmitter

The Castel ETS-250 AM transmitter from Castel is designed to save you money. Sure it’s small, but it’s also less expensive than any other major manufacturer’s 500W model. The ETS-250 fits easily into your existing equipment rack without tying up needed floor space. It’s even less expensive to ship. What’s more, the ETS-250’s unique power control design can meet your night-time power requirements without expensive splitters or the need for a separate low-power transmitter. And because of this unique engineering feature, there’s less audio degradation when it’s time to reduce power.

Modulation PDM
Power Modules connected PLUG-IN
1 Power Module of 500 watts.
Protections of all its parts with fault signalling.
A lightning controller output tank, against lightning.
140% of Modulation Capacity in the positive peek.
Unique Power control.
Voltage, Current and Power Measurement System, through Digital instruments.
Temperature-compensated oscillator.
Automatic replenishment from the studios.
Local and Remote Operating System.
Forced air ventilation system
Single-phase power supply 110/220 vac
6 rack unities, 19"
Frequency Range any channel within the band of 530 kHz to 1700 kHz

Output Power:250 nominal watts.
Load Impedance:50 ohms unbalanced.
Frequency Response:+ / – 0.5 dB from 40 Hz to 10 kHz.
Harmonic Distortion: less than 1.5% to 90% modulation, measured 40Hz to 10kHz.
Modulation Capability: Better than 140% in the positive peak at 100% of the nominal power.
Offset Carrier Amplitude: Less than 1%.
Harmonics and Spurious Signals Radiation: Better than 75 dB below the carrier level.
Residual Noise:Better than 65 dB.
Frequency Stability:+ / – 5 Hz or better.
Audio Input Level:+ 10 dBm nominal for 100% modulation.
Supply Voltage:110 VAC / 220 VAC with taps of + / – 5% and 10% 1 phase.
Power Consumption Typical: Efficiency of 80% to 100% of rated carrier’s nominal power.
Operating Conditions Ambient: temperature – 5 ° C and 40 ° C.
Relative Humidity:between 0% and 90%.
Altitude:between 0 and 3500meters. Asl.
Size and Weight: ETS model – 250 w, 30 Kgr. High 26.6 cm, Fund 50 cm, width 48.3 cm