Specifications

ETSI

Final draft ETSI EN 300 328 V1.8.1 (2012

04)

Step 3:

• Indentify the data points related to the frequency being investigated by applying a threshold.

• Count the number of consecutive data points identified as resulting from a single transmission on the

frequency being investigated and multiply this number by the time difference between two consecutive data

points.

• Repeat this for all the transmissions within the measurement window.

• For measuring idle or silent periods, count the number of consecutive data points identified as resulting from a

single transmitter off period on the frequency being investigated and multiply this number by the time

difference between two consecutive data points.

• Repeat this for all the transmitter off periods within the measurement window.

5.3.7.2.2 Radiated measurements

This method shall only be used for integral antenna equipment that does not have a temporary antenna connector(s)

provided.

A test site as described in annex B and applicable measurement procedures as described in annex C shall be used.

The test procedure is further as described under clause 5.3.7.2.1.

5.3.8 Occupied Channel Bandwidth

5.3.8.1 Test conditions

See clause 5.1 for the test conditions. These measurements shall only be performed at normal test conditions.

In case of conducted measurements on smart antenna systems (equipment with multiple transmit chains) measurements

need only to be performed on one of the active transmit chains (antenna outputs).

For systems using FHSS modulation and which have overlapping channels, special software might be required to force

the UUT to hop or transmit on a single Hopping Frequency.

The measurement shall be performed only on the lowest and the highest frequency within the stated frequency range.

The frequencies on which the test were performed shall be recorded.

If the equipment can operate with different Occupied Channel Bandwidths (e.g. 20 MHz and 40 MHz), than each

channel bandwidth shall be tested separately.

5.3.8.2 Test method

5.3.8.2.1 Conducted measurement

The measurement procedure shall be as follows:

Step 1:

Connect the UUT to the spectrum analyser and use the following settings:

• Centre Frequency: The centre frequency of the channel under test

• Resolution BW: ~ 1 % of the span without going below 1%

• Video BW: 3 × RBW

• Frequency Span: 2 × Occupied Channel Bandwidth (e.g. 40 MHz for a 20 MHz channel)

• Detector Mode: RMS