Equipment for Sale – Sielco Broadcast – RTX-19 / EXC-19 – Studio to transmitter link system

Details:

This studio to transmitter link system was purchased new in 2014 and was used in a professional broadcast environment from June 2014 until November 2017. It consists of two items:

Sielco RTX-19 STL Receiver
Sielco EXC-19 STL Transmitter

The unit has remained in storage since that date. It is in near perfect condition as can be seen from the pictures below.

We confirm the system units are in full working order and in very good condition. They will also be supplied with the original instruction manual.

Original Purchase Price: £3043 sterling excluding VAT (approximately €3731.00)

Guide Price: €1850 (excluding VAT)

Current Location: Nicosia – Cyprus

Please Note: The following pictures were taken in May 2022.

FRONT

FREQUENCY

BACK

Description:

The EXC/RTX19 is a modern direct-synthesis, frequency-agile broadcast quality STL (Studio to Transmitter Link), which may be factory preset on a very wide frequency range from VHF to SHF. The design of this equipment derives from a refinement of the time and field-proven EXC/RTX18 series, coupled with the extended digital control features introduced on EXC25 and EXC30GT FM transmitters. Both transmitter and receiver offer full digital readout and complete and intuitive front panel control through a simple single jog coupled with extensive remote programmability and monitoring. They are accommodated in an elegant, modern-looking, and space-efficient single unit 19″ cabinet which requires exactly half the room of the previous series.

The excellent and even better modulation characteristics, i.e. low noise, distortion, and broad pass-band, the performance of the optional internal stereo-encoder and decoder, the on field programmability, make the EXC/RTX19 a superior choice for a broadcast-grade STL, with reliable and maintenance-free operation.
They also perfectly mate with external digital companding encoders/decoders.

Technical Specifications:

Factory preset frequency ranges:1350÷1375 MHz 1370÷1390 MHz (These units are currently set to 1351.200)
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
Preemphasis 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 (each equipment):19″ 1 un. std. rack
483 x 43.5 x 320 mm
Weight:4,0kg (Tx), 3,5kg (Rx)