Schedule 1 Notional receiver performance level

(subsection 12(2) and paragraph 13(1)(a))

1 Performance parameters

(1) The notional level of performance for a radiocommunications receiver operating under a spectrum licence in the 26 GHz band in relation to interfering signals from a radiocommunications transmitter operated under an apparatus licence relates to: (a) adjacent channel selectivity; (b) receiver intermodulation response rejection; and (c) receiver blocking. (2) The performance parameters of a radiocommunications receiver are defined at the antenna connector port of the receiver unit, except for receiver blocking requirements at frequency offsets of greater than 1500 MHz. All frequency offsets are specified with reference to the upper and lower limits of the frequency bands of the spectrum licence under which the receiver operates.

2 Adjacent channel selectivity

The adjacent channel selectivity requirement is 21.7 dB above the minimum wanted signal level and applies in the adjacent 50 MHz of the licence under which the radiocommunications receiver operates.

Note: When using the adjacent channel selectivity requirement to calculate the maximum tolerable interference level, the calculated level is the maximum power within the adjacent 50 MHz. For example, a receiver complying with the notional receiver performance level will be able to tolerate an interference power level of -63.3 dBm/50 MHz in the adjacent 50 MHz, measured at the input of the receiver.

3 Receiver intermodulation response rejection

The receiver intermodulation response rejection level is 19 dB for each out-of-band signal at frequency offsets greater than or equal to 5 MHz from the upper and lower frequency limit of the licence under which the radiocommunications receiver operates.

4 Receiver blocking

(1) The receiver blocking requirement is 27 dB above the minimum wanted signal level, and applies at frequency offsets greater than 50 MHz and less than or equal to 1500 MHz from the upper and lower frequency limits of the spectrum licence under which the radiocommunications receiver operates. (2) The receiver blocking requirement for unwanted signals within the -3 dB beamwidth of the receiver antenna and at frequency offsets of greater than 1500 MHz, is expressed as a root mean square field strength at the input of the receiver antenna of: (a) 0.36 V/m in the frequency range 0.03 GHz–12.75 GHz; and (b) 0.1 V/m in the frequency range 12.75 GHz–55 GHz, excluding frequency offsets of less than or equal to 1500 MHz from the upper and lower frequency limit of the spectrum licence under which the radiocommunications receiver operates.

Note: When using the receiver blocking requirement of 27 dB to calculate the maximum tolerable interference level at offsets greater than 50 MHz and less than or equal to 1500 MHz, a reference bandwidth of 50 MHz is to be used. For example, a receiver complying with the notional receiver performance level will be able to tolerate an interference power level of -58 dBm/50 MHz within the frequency offset of 50 MHz–1500 MHz, measured at the input of the receiver.