Glenayre Electronics Inc. GL-T8600-CN Manual Do Utilizador
Glenayre Document Number: 9110.00172
DSP Exciter
Issue 1, Rev. I: 01/15/97
SPECIFICATIONS
Print Date: 02/19/97
Copyright © 1997 Glenayre
Page: 2-1
sec_
2
2
SPECIFICATIONS
, which lists the DSP exciter specifications.
Where possible, EIA or I-EIS A measuring methods were used in determining specifica-
tions. Note that some specifications are not addressed by either set of standards or the
prescribed methods were impractical.
tions. Note that some specifications are not addressed by either set of standards or the
prescribed methods were impractical.
Table 2-1 Exciter Specifications
characteristic
condition
specification
adjacent-channel noise
25-kHz channel spacing, in analog mode
-85 dBc
25-kHz channel spacing, in FSK mode
-75 dBc
alternate channel noise
25-kHz channel spacing
-95 dBc
spurious
-90 dBc
operating frequency range
determined by installed VCO/RF board
refer to Table 3-1
RF output power
keyed
250 mW nominal
carrier frequency stability
steady state, -30° to
+60° C
+60° C
10-MHz reference, int=0.005 ppm/yr,
ext=0.1 ppm/yr
ext=0.1 ppm/yr
FSK frequency/modulation stability
relative to carrier frequency stability
+/- 10 Hz max
FSK adjustment accuracy
+/- 10 Hz
analog offset resolution
1 Hz
number of channels
up to 8, depending on interface board and
controller
controller
frequency spread
3 MHz at 900 MHz (12 MHz wideband
option)
7.5 MHz at 450 MHz
5 MHz at 150 MHz
option)
7.5 MHz at 450 MHz
5 MHz at 150 MHz
audio input
level
-25 to +10 dBm
impedance with transformer
600 ohm or 5 kohms balanced
audio response
flat, 50 to 2800 Hz; not referenced to 1
kHz; 60% deviation
kHz; 60% deviation
+/-0.5 dB
preemphasized 6 dB per octave, 300 to
3000 Hz; 60% deviation
3000 Hz; 60% deviation
+/-0.75 dB