1 Definitions
1.1 Baseband
1.2 Baseband bandwidth
1.3 Bandwidth expansion
ratio
1.4 Out-of-band spectrum
(of an emission)
1.5 Permissible
out-of-band spectrum (of an emission)
1.6 Out-of-band power (of
an emission)
1.7 Permissible
out-of-band power
1.8 x dB bandwidth
1.9 Build-up time of a
telegraph signal
1.10 Relative build-up time
of a telegraph signal
1.11 Modulation rate
2 Emission of a transmitter,
optimum from the standpoint of spectrum efficiency
3 Limits for out-of-band
emissions
4 Calculation of emitted spectra
4.1 Approximation of
out-of-band spectra envelopes for analytical calculations
5 Reduction of interference due
to unwanted emissions at transmitters
Annex 1 – Considerations for
emissions designated Type A
1 Classes of emission A1A and A1B with
fluctuations
1.1 Necessary bandwidth
1.2 Shape of the spectrum
envelope
1.3 Occupied bandwidth
1.4 Out-of-band spectrum
1.5 Build-up time of the
signal
1.6 Adjacent-channel
interference
2 Classes of emission A1A and A1B
without fluctuations
3 Shaping of the telegraph signal
by means of filters
4 Classes of emission A2A and A2B
4.1 Necessary bandwidth
4.2 Out-of-band spectrum
5 Amplitude-modulated
radiotelephone emission, excluding emissions for sound broadcasting
5.1 Type of modulation
signal and adjustment of the input signal level
5.2 Extract from ITU-T
Recommendation G.227
5.3 Class of emission A3E
double-sideband telephony
5.3.1 Necessary
bandwidth
5.3.2 Power
within the necessary band
5.3.3 Out-of-band
spectrum
5.3.4 Relationships
between the 0 dB reference level for determining the out-of-band spectrum and
the levels of other spectral components of the emission
5.4 Single-sideband,
classes of emission R3E, H3E and J3E (reduced, full or suppressed carrier) and
independent-sideband class of emission B8E
5.4.1 Necessary
bandwidth
5.4.2 Power
within the necessary band
5.4.3 Out-of-band
spectrum for class of emission B8E; four telephony channels simultaneously
active
6 Amplitude-modulated emissions
for sound broadcasting
6.1 Type of modulation
signal and adjustment of the input signal level, class of emission A3EGN, sound
broadcasting
6.2 Noise signal for
modulating the signal generators (extract from Recommendation ITU‑R BS.559,
§ 1.3)
6.3 Class of emission A3E,
double-sideband sound broadcasting
6.3.1 Necessary
bandwidth
6.3.2 Power within
the necessary band
6.3.3 Out-of-band
spectrum
6.3.4 Relationship
between the 0 dB reference level for determining the out-of-band spectrum and
the levels of other spectral components of the emission
Annex 2 – Considerations for
emissions designated Types B and R
1 Shape of the spectrum envelope for class B8E and
class R7J emissions modulated with white noise
1.1 The tests described in
item 1 of Table 3
1.2 The tests described in
item 2 of Table 3
1.3 The tests described in
item 3 of Table 3
Annex 3 – Considerations for
emissions designated Type F
1 Class of emission F1B
1.1 Necessary bandwidth
1.2 Shape of the spectrum
envelope
1.2.1 Telegraph
signal consisting of reversals with zero build-up time
1.2.2 Periodic
telegraph signals with finite build-up time
1.2.3 Non-periodic
telegraph signal with finite build-up time
1.3 Out-of-band power and
occupied bandwidth
1.4 Shaping of the
telegraph signal by means of filters
1.5 Adjacent-channel
interference
1.6 Build-up time of the
signal
1.7 Bandwidth occupied,
for unshaped signals
1.8 Out-of-band spectrum
2 Frequency-modulated emissions
for sound broadcasting and radiocommunications
2.1 Class of emission F3E,
monophonic sound broadcasting
2.1.1 Necessary
bandwidth
2.1.2 Out-of-band
spectrum of class F3E emissions modulated by noise
2.2 Classes of emission
F8E and F9E, stereophonic sound broadcasting
2.2.1 Necessary
bandwidth
2.3 Class of emission F3E,
narrow-band radiocommunications
3 Frequency-modulated
multi-channel emissions employing frequency division multiplex (FDM)
3.1 Necessary bandwidth
3.2 Shape of the spectrum
envelope
3.3 Out-of-band power
Annex 4 – Considerations for
emissions designated Type G
1 Class of emission G1B (single channel phase
modulation telegraphy)
1.1 Necessary bandwidth
1.2 Out-of-band spectrum
Annex 5 - Considerations for
emissions designated Type J
1 Single-sideband and independent-sideband
amplitude-modulated emissions for telephony and multi‑channel
voice-frequency telegraphy
1.1 Introduction
1.2 Shape of the spectrum
envelope for class J3E and class J7B emissions modulated with white noise
1.2.1 The tests
described in item 1 of Table 8
1.2.2 The tests
described in item 2 of Table 8
1.2.3 The tests
described in item 3 of Table 8
1.2.4 The tests
described in item 4 of Table 8
1.2.5 The tests
described in item 5 of Table 8
2 Class of emission J3E,
single-sideband sound broadcasting
Annex 6 – Digital phase
modulation
1 Binary phase shift keying (BPSK) and quartenary
phase shift keying (QPSK)
1.1 Description of the
scheme
1.2 Power spectra and
approximation of occupied bandwidth
1.3 Influence of the pulse
shaping function
1.4 Practical
implementation
2 Continuous phase modulation
(CPM)
2.1 System description
2.2 Spectrum
2.3 Occupied bandwidth
3 Gaussian minimum shift keying
(GMSK)
3.1 Basic formulae
3.1.1 Filtering
3.1.2 Output
phase
3.1.3 Modulation
3.2 Properties and
characteristics
3.2.1 Spectrum
3.2.2 Occupied
bandwidth
3.2.3 Eye diagrams
3.3 Practical considerations
4 M-ary QAM, p/4 QPSK and p/4 DQPSK modulations
4.1 M-ary QAM modulation
4.1.1 Modulated
signal
4.1.2 Power
spectral density
4.1.3 Bandwidth
4.2 p/4 QPSK and p/4 DQPSK modulations
4.2.1 Modulated
signal
4.2.2 Power
spectral density
4.2.3 Bandwidth
5 Orthogonal frequency division
multiplexing (OFDM)
5.1 The basic idea
5.2 OFDM modulation scheme
5.3 An OFDM system
5.4 Useful data carriers
5.5 Spectrum
characteristics
5.6 Influence of non‑linearities
6 Spread spectrum
Annex 7 – Reduction of
interference due to unwanted emissions at transmitters
1 Transmitter architecture
2 Filtering
3 Modulation techniques
4 Linearization
4.1 Predistortion
4.2 Feed-forward
4.3 Feedback
4.4 Modulation feedback
4.5 The Polar Loop
technique
4.6 The Cartesian Loop
technique
4.7 Summary