Related Manuals for Cobra 150GTL
Summary of Contents for Cobra 150GTL
- Page 1 150GTL ALIGNMENT REVISION: 1.0 BURKE ALIGNMENT PROCEDURE MODEL: 150GTL REVISION: 1.1 DATE: 02/14/06 PREPARED BY: BURKE Total Pages: 6 pages Page:1 print date: 2/14/06...
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Page 2: Pulse Generator
150GTL ALIGNMENT REVISION: 1.0 BURKE 150GTL ALIGNMENT INSTRUCTION TEST CONDITION: 1.0. TEST TEMPERTAURE: 77 ±9 °F 1.1. STANDARD DC POWER: 13.8VDC 8 Ω 1.2. STANDARD AUDIO LOADING: 50 Ω 1.3. ANTENNA IMPEDANCE: 1.4. STANDARD REF. MODULATION: AM 30% 2.5KHz 1.5. PULSE GENERATOR: 1µS pulse @ 100mS and 1V peak-to-peak amplitude,... - Page 3 150GTL ALIGNMENT REVISION: 1.0 BURKE B. RX test equipment setup: RF Signal VTVM Generator Oscilloscope Power 150GTL Supply Noise Pulse 8 ohm Load Generator MAIN ALIGNMENT PLL Alignment STEP PRESET TO CONNECTIONS ADJUST PROCEDURE RX mode, AM, Check for range of 0.2 to...
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Page 4: Receiver Alignment
150GTL ALIGNMENT REVISION: 1.0 BURKE 3.0 RECEIVER ALIGNMENT Connect an AC VTVM with 8 ohm load across speaker coil. Adjust volume control to obtain a suitable indication. Set generator output low enough to prevent AGC limiting. Preset controls as follows, unless otherwise noted: RF Gain maximum, Squelch minimum, NB/ANL off. - Page 5 150GTL ALIGNMENT REVISION: 1.0 BURKE STEP PRESET TO CONNECTIONS ADJUST PROCEDURE RF POWER METER TX mode, AM, Adjust for a reading of S-9 on the 29.700MHz analog meter of the radio Modulation meter to TX mode, AM, antenna connector. AMC CONTROL - HI 29.700MHz...
- Page 6 150GTL ALIGNMENT REVISION: 1.0 BURKE Page:6 print date: 2/14/06...
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Page 7: Revision History
150GTL ALIGNMENT REVISION: 1.0 BURKE REVISION HISTORY 1.0 – Initial release 1.1 – Added section Step 9 in Section 4 Page:7 print date: 2/14/06...