
ETS2228 Maintenance Manual
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3.5 Parameter Indices
1 .Performance Indices
Primary indices of the receiving unit:
(1)Basic indices
(2)Frequency range: Work frequency 869MHZ--894MHZ MHz
(3)Noise coefficient under sensitivity condition: <=7.5dB (Note: Including the loss from
duplexer)
(4)Linearity requirement
(5)Sensitivity capability indices:≤-106dBm/1.23MHz
(6)Amplitude frequency characteristics
(7)Amplitude range:<±1dB, within 1.23MHz(After being calibrated)
(8)double-work distance:10MHz
(9)channel distance:25 KHz
Primary indices of the emission unit:
(1)Frequency range: 824MHZ~849MHZ MHz
(2)Maximum emission power:>23dBm
(3)Maximum linearity output power: 28 dBm
(4)ACLR requirement:-42dBc/30KHZ@885KHZ~1.98MHZ
-56dBc/30KHZ@1.98MHZ~4MHZ
(5)In-band low-noise requirement
Under the condition of the minimum output power, the low noise should be lower than
-54dBm/1.23MHZ
PLL indices:
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