Glenayre Document Number: 9110.01305
GL-T8200 1- to 25-Watt 900-MHz Transmitter System
Rev. A: 03/24/99
+DESCRIPTION
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Print Date: 05/10/99
Copyright © 1999 Glenayre
Page: 3-5
isolator and then to a cabinet-mounted lightning protector/connector for connection to the
antenna system. Note that some installations have a ten-MHz reference signal cabled from
the transmitter controller to connector J8 on the back of the DSP exciter.
3.3.2
Site Audio/Modulation-Signal Flow
Modulation information arrives at the site either through a link receiver or by wireline. The
digital signal is first routed through the transmitter controller, which checks for and
responds to appropriate embedded commands. Paging information is supplied to the
exciter. The exciter modulates this signal using digital signal processing, then up-converts
this modulated signal to final output frequency. This modulated RF from the exciter is
supplied to the PA, which amplifies the signal to the RF output level. This modulated,
amplified RF from the PA is supplied to an antenna network for transmission.
