Sielco 1.3-2.5GHz STL is a complete studio to transmitter link system combining EXC19 microwave transmitter, RTX19 receiver, matched directional antennas and cables to deliver reliable SHF RF paths for professional FM broadcast networks.
$ 4,460.54 $ 5,340.83
The Sielco 1.3-2.5GHz STL is a modern studio to transmitter link package built around the EXC19 transmitter and RTX19 receiver, supplied as a ready-to-install bundle with antennas and interconnecting cables. It provides broadcasters with a dedicated point-to-point RF route between studio and transmitter across the 1300–2500 MHz range, using factory-defined sub-bands and fine frequency steps for straightforward licensing and deployment. Both units share a compact 1U 19-inch chassis with LCD display and jog-wheel control, simplifying front-panel configuration while minimising rack space usage at crowded transmitter and headend sites.
The Sielco 1.3-2.5GHz STL delivers broadcast-grade FM modulation with low noise, low distortion and wide audio bandwidth suitable for mono, stereo and composite MPX feeds. The EXC19 transmitter typically provides 2–5 W RF power in the 1.3–2.5 GHz band, using a direct-synthesis oscillator with small frequency step, sharp microwave filtering and a high-efficiency switch-mode power supply covering 90–260 Vac with optional DC backup input. The RTX19 receiver employs a very narrow, low-loss microwave input filter and sensitive front end to maintain link margin in noisy RF environments, while optional stereo encoder or decoder cards and multiple balanced and unbalanced I/O connectors support flexible baseband routing in complex FM plants.
The Sielco 1.3-2.5GHz STL suits FM broadcasters who need a robust, frequency-agile microwave link between studio and transmitter locations.
This Sielco 1.3-2.5GHz STL package includes one EXC19 1U microwave transmitter, one RTX19 1U receiver, matched high-gain directional antennas for each end of the path and appropriately rated RF cables for installation. Balanced and unbalanced audio, MPX and auxiliary inputs and outputs, plus SCA/RDS inputs, make it straightforward to integrate into existing FM baseband chains and audio processors. Remote control via serial interface, alarm contacts and comprehensive front-panel status indications help engineers supervise the link with minimal site visits, making the system a practical long-term choice for critical studio to transmitter connectivity.
