Honeywell 90402651-000, Описание системы, руководство по установке и обслуживанию

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Page 2-9
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
Table 2-3. Performance Limit for Expressed Modulation Type
Sub-Band
IM Order
(min)
Frequency (MHz) IM (dBc)
Test Carriers
Limiting
Standard
Below Rx Band 9 0.1 to 1518 -105 CW DO-210
Rx-band 7 1518 to 1559 -139 CW DO-210
GPS 5 1575.42 ± 12 -127.8 Modulated ETSI
Glonass 3 1602 ±5.75 -112.8/500 Modulated ETSI
1605-1610 3 1605 to 1610 -112.8/500 Modulated ETSI
Radio Astronomy 3 1610.6 to 1613.8 -112.8/500 Modulated ETSI
Iridium 3 1616 to 1625.5 -32.3/20 Modulated V5C3
Tx-band 1626.5 to 1660.5 Defined
elsewhere
Radio Astronomy 3 1660 to 1670 -38.7/3 Modulated ETSI
Above Tx- band to
1694.5 3 1670 to 1694.5 -32.3/20 Modulated ETSI
Above Tx- band to
1728.5 5 1694.5 to 1728.5 -56/1000 Modulated ETSI
Above Tx- band to
1762.5
7
1728.5 to 1762.5 -81/1000 Modulated ETSI
Above Tx- band to
3400 9 1762.5 to 3400 -81/1000 Modulated ETSI
Above Tx- band >
3400 9 3400 to 18000 -80 CW DO-210
NOTES:
1 Modulated carriers must have unique test sequences from each other.
2 On aircraft equipped with Glonass 5 th order IM control algorithm limiting carriers
no more than 30 MHz of carrier separation may be applied if warranted.
3 Limits of Rx band have equivalence to degradation of G/T.
4 Limits within 2 MHz of Tx-band edges apply only if carriers are not present within
2 MHz of that edge of the Tx-band.
(2) Relief for the specified requirements is permitted if substantiation of Type F Diplexer in
excess of the "Assumed System Rejection to Ant port" can be demonstrated.
E. Harmonics Above the Tx-band (>1670 MHz)
(1) Tx output port referenced harmonics is less than the following limits over the respective
frequency range when used with Type F Diplexer and 1.4 dB of coax interconnecting
cable shown in Table 2-4:
DRAFT
3rd rvw Draft as of:
29 January, 2020