IBOC TECHNOLOGY

                              

Introduction of IBOC:-

In-band on-channel is a hybrid method of transmitting digital radio and analog radio broadcast signals simultaneously on the same frequency.

This technology allows digital audio broadcasting without the need for new spectrum allocation of a digital signal. It utilizes AM and FM bands by attaching the digital side to the standard analog.

This basically comprises the FEC coding and interleaving section 

IBOC IMPLEMENTATION TECHNIQUE:-

The requirement of FM to IBOC isolation is also somewhat difficult to achieve because of the power ratio.

There are few techniques used to combine FM and IBOC signals.

 Low level combines relies essentially on a common amplification technique which means that both the host FM and the IBOC signals are amplified in the same power amplifier (PA)

IBOC adds 1% total channel power; its power consumption is negligible, so the antenna’s power rating is normally not an issue.

WHY DELAY IN ADOPTION?

*Low power  FM stations are prone to interference.

*IBOC licensing and service rules have not been adopted yet.

*The cost is high.