ECS COFDM Ardpet  

COFDM stands for Coded Orthogonal Frequency Division Multiplexing. Typically the incoming video signal is first compressed, then modulated using inverse Fast Fourier transforms and shared between 1704 transmitted carriers. Several levels of error protect are included and transmission parameters can be optimized for robust use.

COFDM transmission is a multi-carrier digital transmission technique that thrives in high multi-path environments. The increased performance of the COFDM system is both in the terms of link continuity and picture quality because the receiver is able to utilize reflected and direct signals.

The ECS Ardpet is an entry level COFDM link designed for professional security users. Shares many features with its military relatives.

Click Here For A Video Sample (28.2 MB)

Click on the picture above to see the location where the video starts and where the video ends.

Video quality reduced due to increasing the compression rate on the original file for the website.

Features:

  1. • Split into a down converter unit and IF receiver to allow for the widest range of practical installations.
  2. • Optional Hybrid coupler and bias tee can be fitted in order to run two receivers from a single down converter and antenna, allowing single installations to receive two channels simultaneously.

Tech:

Transmitter

  1. • Dimensions: 5.5 x 6 x 1 inches
  2. • Weight: 2 lbs.
  3. • Power: 50mW to 1 watt preset
  4. • Modes: QPSK ½, 2/3 code rate ¼, 1/8 guard interval; user programmable
  5. • Video: 1v pk to pk
  6. • Audio: none
  7. • Environment: IP55

Down Converter

  1. • Dimensions: 8.5 x 5 x 2 inches
  2. • Weight: 3 lbs.
  3. • Sensitivity: -96dBm
  4. • Noise figure: 3dB max
  5. • Conversion gain: 40dB
  6. • IF output: typically 660MHz
  7. • Environment: IP67
  8. • Connectors:
    1. o RF input – N-type
    2. o RF output – N-type

Receiver

  1. • Dimensions: 8 x 8 x 2 inches
  2. • Weight: 4 lbs.
  3. • Environment: IP55
  4. • DC indicators: signal strength – 4 x LED
  5. • Indicators:
    1. o OFDM lock – green LED
    2. o FEC lock – green LED
    3. o Packet error – red LED
  6. • Connectors:
    1. o Video – BNC IF in N-type
    2. o Power – 3 pin binder
    3. o Control – 5 pin binder

 

Hybrid Coupler & Bias Tee (optional)

  1. • Dimensions: 3 x 3 x 2 inches
  2. • Weight: 1 lb.
  3. • Environment: IP66
  4. • Connectors:
    1. o IF out 1 – N-type
    2. o IF out 2 – N-type
    3. o IF input – N-type

 

 
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