Panasonic SC-HC35 HC55 DAB operations, DAB structure, DAB reception method on this unit

[HC55] DAB operations

DAB (Digital Audio Broadcasting) is a new form of radio that is broadcast digitally. Unlike regular analogue broadcasting, digital radio deteriorates less, and is thus able to provide quality sound closer to that of a disc.

DAB structure

Bands

There are two types of DAB bands, “BAND III” (receivable in this unit) and “L BAND” (not broadcast in Australia and not receivable on this unit).

Frequencies

There are 38 frequencies on BAND III. Among these, 3 are used in Australia (current as of February, 2011).

Ensemble, station and service

The number of stations that makes up one frequency differs between DAB and analogue radio. Analogue stations broadcast on different frequencies, even if it is the same company doing the broadcasting. With DAB, however, it is possible to broadcast a number of stations on the same frequency.

In DAB terminology, an ensemble represents a group of stations on the same frequency.

As shown in the diagram, an ensemble consists of a group of stations with primary services and secondary services. This means, for example, that commentary on sports events from different areas can all be broadcast at once.

DAB reception method on this unit

Depending on the region, there is a difference between broadcast frequency and stations broadcast along the same frequency.

For this reason, a memory of receivable stations should first be created and then selected from those memorised stations as the reception method.

DAB Auto scan

This function searches for currently receivable stations and inputs them into the unit’s memory.

When DAB is selected for the first time, this function starts automatically.

≥Depending on some factors such as the broadcasting time availability, the station may not broadcast even if it is stored into the memory. If this occurs, “NO SERVICE” is displayed.

Station memory updating

When there is a station name change, or a new station begins broadcasting, the unit memory is automatically updated when:

≥the previous station name is selected.

≥a new station is on the same frequency as another already memorised station.

Deleting stations that are no longer broadcasting is not automatic. If you want to delete a station, perform Auto scan again and a new memory will be created.

When a new frequency begins broadcasting, stations on the new frequency are not automatically added to the memory.

Perform Auto scan to add them to the memory. You may also need to change the Auto scan range if the new frequency is outside the factory-set Auto scan range (> 15).

Station tune

You can select stations from the created memory (> 14) in alphanumeric order.

Preset function

You can easily select your favourite stations by using the preset function (> 14).

Initial DAB settings

The first time “DABr” is selected, this unit will start the “DAB AUTO SCAN” and memorise the stations that are available in your region.

Press [EXT-IN, RADIO] repeatedly to select “DABr”.

When a frequency is tuned, the ensemble corresponding to the frequency is displayed.

The total number of available stations is displayed.

The station first in alphanumeric order is selected. RQTX1267

≥ “SCAN FAILED” is displayed when the Auto scan is unsuccessful. Adjust the	13
antenna and restart the Auto scanning (> 14) or change the Auto scan

frequency range (> 15).