Sharp GX20 Service Manual - Page 39
BAND Select & Channel, 2. TX test
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3. Tests CONFIDENTIAL 3.1. BAND Select & Channel Select a band and a channel to test. Settings are applied to all tests. Band selection GX20 Input box [Procedure] 1. Select a band. (GSM, DCS or PCS) 2. Select or enter a channel using Channel bar or Input box. Figure 66 Channel bar 3.2. TX test Test burst transmission. TX frequency of selected channels Current PCL (Read only) PCL bar Data patterns TX ON/OFF button This indicator appears during burst transmission. [Procedure] 1. Select a band and channel. (see 3.1) 2. Select PCL (Power Control Level) using PCL bar. 3. Select Data pattern. 4. Click TX ON to start burst transmission. (You can check each part in this state.) 5. Click TX OFF to end burst transmission. Figure 67 * Data pattern (TSC 5) includes Training Sequence GSM 5, and other part is pseudo random data. 2 - 33