STL LINK

Studio to Transmitter Digital Link

Overview

STL (Studio to Transmitter video links) are Point-to-Point microwave links to transport digital TV Programs (in ASI or IP formats).
The links operate in the frequency bands from 2 to 30 GHz and can be used at line-of-sight distances of up to 50 miles (80 Kilometers), depending on options such as frequency band, output power, modulation format and antenna size.
The STL can transport from one to four ASI streams or its equivalent in IP format. Each ASI stream transports from one to six video programs simultaneously, SD or HD.
An optional ENCODER is used to generate ASI streams by multiplexing video from the Studio, which can be provided in SDI or HDMI format. The output of the link is ASI or IP to be fed directly to the TV transmitter.

Highlights and Benefits

Frequency

Frequency bands from 7 to 38 GHz

Redundancy

1+1 Configuration available for Redundancy

Distances

Distances of up to 50 miles (80 kms)

ASI

Four ASI inputs/outputs

600 Mbps

600 Mbps full duplex

HD - SDI

Optional HD - SDI inputs MPEG4, H.264 Encoder

Key Characteristics

General Parameters

Frequency bands
6,7,8, 11, 13, 18, 23, 38 GHz bands, Frequency Division Duplex (FDD)
Channel Size*
7, 10, 14, 20, 25, 28, 30, 40, 50, 56, 60, 80 MHzv
Modulation Format
Selectable: QPSKBPSK, 16QAM, 32QAM, 64QAM, 128QAM, 256QAM, 512QAM, 1024QAM
Max Uncompressed Capacity
600 Mbps full duplex - Varies by modulation, bandwidth, and packet mix
Payload Latency
200 µs typical
Payload Types
Ethernet (IPv4 and IPv6 compatible)
Regulatory Compliance
ETSI EN 300 019, Part 1-3, Class 3.2, Part 1-1 Class 1.2 and Part 1-20 Class 2.3
EN 300 132-2 and EN 300 217-2-2
EN 301 489-1 and EN 301 489-3
IEC 60950-1/EN 60950-1
FCC CFR47 Part 101
FCC/ANSI: FCC Part 15 Class A Unintentional Radiator
ROHS
Safety
EN60950-1
Data Transmission
Capacity allocation: Priority Based Packet System (PBPS) gen.3

Diagram

IDU

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