Specifications

ETSI

Final draft ETSI EN 3

00 328 V1.8.1 (2012

04)

5) The detection threshold shall be proportional to the transmit power of the transmitter: for a 20 dBm e.i.r.p.

transmitter the detection threshold level (TL) shall be equal or lower than -70 dBm/MHz at the input to the

receiver (assuming a 0 dBi receive antenna). For power levels below 20 dBm e.i.r.p., the detection threshold level

may be relaxed to TL = -70 dBm/MHz + 20 - Pout e.i.r.p. (Pout in dBm).

4.3.1.6.2.3 Conformance

The conformance tests for this requirement are defined in clause 5.3.7 and more specifically in clause 5.3.7.2.1.1.

4.3.1.6.3 Short Control Signalling Transmissions

4.3.1.6.3.1 Definition

Short Control Signalling Transmissions are transmissions used by Adaptive Frequency Hopping equipment to send

control signals (e.g. ACK/NACK signals, etc.) without sensing the frequency for the presence of other signals.

NOTE: Adaptive equipment may or may not have Short Control Signalling Transmissions.

4.3.1.6.3.2 Limits

If implemented, Short Control Signalling Transmissions shall have a maximum duty cycle of 10 % within an

observation period of 50 ms or within an observation period equal to the dwell time, whichever is the shorter.

NOTE: Duty Cycle is defined in clause 4.3.1.2.1.

4.3.1.6.3.3 Conformance

The conformance tests for this requirement are (part of the procedure) defined in clause 5.3.7.2.1.1.

4.3.1.7 Occupied Channel Bandwidth

This requirement applies to all types of frequency hopping equipment.

4.3.1.7.1 Definition

The Occupied Channel Bandwidth is the bandwidth that contains 99 % of the power of the signal.

NOTE: For non-adaptive Frequency Hopping equipment, the Occupied Channel Bandwidth is declared by the

supplier. See clause 5.3.1 j).

4.3.1.7.2 Limits

The Occupied Channel Bandwidth for each hopping frequency shall fall completely within the band given in clause 1.

For non-adaptive Frequency Hopping equipment with e.i.r.p greater than 10 dBm, the Occupied Channel Bandwidth for

every occupied hopping frequency shall be equal to or less than the value declared by the supplier. This declared value

shall not be greater than 5 MHz.

4.3.1.7.3 Conformance

The conformance tests for this requirement are defined in clause 5.3.8.

4.3.1.8 Transmitter unwanted emissions in the out-of-band domain

This requirement applies to all types of frequency hopping equipment.