Hypothetical reference circuit
Rec. ITU-R | Title |
F.390
|
Definitions of terms and references concerning hypothetical reference circuits and hypothetical reference digital paths for radio-relay systems |
F.391* |
Hypothetical reference circuit for radio-relay systems for telephony using frequency-division multiplex with a capacity of 12 to 60 telephone channels |
F.392
|
Hypothetical reference circuit for radio-relay systems for telephony using frequency-division multiplex with a capacity of more than 60 telephone channels |
*) Withdrawn
Allowable noise power and availability
Rec. ITU-R | Title |
F |
Allowable noise power in the hypothetical reference circuit for radio-relay systems for telephony using frequency-division multiplex |
F.395*
|
Noise in the radio portion of circuits to be established over real radio-relay links for FDM telephony |
F.555
|
Permissible noise in the hypothetical reference circuit of radio-relay systems for television |
F.557
|
Availability objective for radio‑relay systems over a hypothetical reference circuit and a hypothetical reference digital path |
*) Withdrawn
Radio-frequency channel arrangements
Rec. ITU-R | Title |
F.701
|
Radio-frequency channel arrangements for analogue and digital point-to-multipoint radio systems operating in frequency bands in the range 1 350-2 690 GHz (1.5, 1.8, 2.0, 2.2, 2.4 and 2.6 GHz) |
F.283
|
Radio-frequency channel arrangements for low and medium capacity analogue or digital radio-relay systems operating in the 2 GHz band |
F.382
|
Radio-frequency channel arrangements for radio-relay systems operating in the 2 and 4 GHz bands |
F.383
|
Radio-frequency channel arrangements for high capacity radio-relay systems operating in the lower 6 GHz band |
F.384
|
Radio-frequency channel arrangements for medium and high capacity analogue or digital radio-relay systems operating in the upper 6 GHz band |
F.385
|
Radio-frequency channel arrangements for radio-relay systems operating in the 7 GHz band |
F.386
|
Radio-frequency channel arrangements for medium and high capacity analogue or digital radio-relay systems operating in the 8 GHz band |
F.387
|
Radio-frequency channel arrangements for radio‑relay systems operating in the 11 GHz band |
F.497
|
Radio-frequency channel arrangements for radio-relay systems operating in the 13 GHz frequency band |
F.637
|
Radio-frequency channel arrangements for radio‑relay systems operating in the 23 GHz band |
F.389*
|
Preferred characteristics of auxiliary radio-relay systems operating in the 2, 4, 6 or 11 GHz bands |
*) Withdrawn
Characteristics at radio, intermediate and baseband frequencies
Rec. ITU-R | Title |
F.699
|
Reference radiation patterns for line-of-sight radio-relay system antennas for use in coordination studies and interference assessment in the frequency range from 1 GHz to about 70 GHz |
F.306*
|
Procedure for the international connection of radio-relay systems with different characteristics |
F.268*
|
Interconnection at audio frequencies of radio-relay systems for telephony |
F.380*
|
Interconnection at baseband frequencies of radio-relay systems for telephony using frequency-division multiplex |
F.381*
|
Conditions relating to line regulating and other pilots and to limits for the residues of signals outside the baseband in the interconnection of radio-relay and line systems for telephony |
F.270*
|
Interconnection at video signal frequencies of radio-relay systems for television |
F.463*
|
Limits for the residues of signals outside the baseband of radio-relay systems for television |
F.402*
|
The preferred characteristics of a single sound channel simultaneously transmitted with a television signal on an analogue radio-relay system |
F.275*
|
Pre-emphasis characteristic for frequency modulation radio-relay systems for telephony using frequency-division multiplex |
F.404*
|
Frequency deviation for analogue radio-relay systems for telephony using frequency-division multiplex |
F.405*
|
Pre-emphasis characteristics for frequency modulation radio-relay systems for television |
F.276*
|
Frequency deviation and the sense of modulation for analogue radio-relay systems for television |
F.403*
|
Intermediate frequency characteristics for the interconnection of analogue radio-relay systems |
Maintenance
Rec. ITU-R | Title |
F.290*
|
Maintenance measurements on radio-relay systems for telephony using frequency-division multiplex |
F.305*
|
Stand-by arrangements for radio-relay systems for television and telephony |
F.401*
|
Frequencies and deviations of continuity pilots for frequency modulation radio-relay systems for television and telephony |
F.444*
|
Preferred characteristics for multi-line switching arrangements of analogue radio-relay systems |
F.398*
|
Measurements of noise in actual traffic over radio-relay systems for telephony using frequency-division multiplex |
F.399* |
Measurement of noise using a continuous uniform spectrum signal on frequency-division multiplex telephony radio-relay systems |
F.400*
|
Service channels to be provided for the operation and maintenance of radio-relay systems |
*) Withdrawn
Trans-horizon radio-relay systems
Rec. ITU-R | Title |
F.396*
|
Hypothetical reference circuit for trans-horizon radio-relay systems for telephony using frequency-division multiplex |
F.397*
|
Allowable noise power in the hypothetical reference circuit of trans-horizon radio-relay systems for telephony using frequency-division multiplex |
F.593*
|
Noise in real circuits of multi-channel trans-horizon FM radio-relay systems of less than 2 500 km |
F.698
|
Preferred frequency bands for trans-horizon radio-relay systems |
F.388* |
Radio-frequency channel arrangements for transhorizon radio-relay systems |
F.302
|
Limitation of interference from trans-horizon radio-relay systems |
*) Withdrawn
NOTE 1
– Some of the above Recommendations deal with digital as well as analogue
radio-relay systems.
NOTE 2
– Recommendations relating to frequency sharing between analogue radio-relay
systems and space radiocommunication systems are not listed here.