Garmin GNC400, Alignment Procedure

Page: 1 / 12

GNC 400 COMM TRANSCEIVER ALIGNMENT PROCEDURE
P/N 005-00051-55 REV. T
Page 1
GNC400 COMM TRANSCEIVER
ALIGNMENT PROCEDURE
GARMIN Corporation
1200 E. 151st Street
Olathe, KS 66062
005-00051-55 Rev. T
Approvals Date
Revisions
Rev. Date Description of Change Apprvd.
G 10/26/98 Change tuning order of IF transformers, change RF AGC
setting. 9901
H 10/30/98 Increase TX MOSFET bias to 100mA 9929
J 11/20/98 Add 25 KHz noise squelch adjustment, change SI
program reference to test page display. 10058
K 8/11/99 Add instructions for tuning –03 board TCXO. 11584
L 5/5/00 Change voltage range on VCO alignment. Add
troubleshooting note to TX MOSFET bias setting 13278
M 5/23/00 Add Q-Dope to L302 13396
N 6/7/00 Q504 Fix 13512
P 5/10/01 Eliminate TCXO and RX IF Alignment 15734
Q 08/15/01 Add Digital adjustments for PA and Driver bias, and MIC
gain 16341
R 08/20/01 Change AF IN LO from 600 TO HI to GND 16379
S 09/25/01 Change TX MOD adjustment on-05 comm to 80% 16582
T 11/14/01 Update procedures for 16Watt TX 16894
Drawn: BAS 6/4/98
Checked: MDD 6/5/98
Approved: MLR 6/5/98
Project Mgr.: TLJ 6/5/98
CONFIDENTIAL
This drawing and these specifications contained herein
are the property of GARMIN Corporation and may not
be reproduced or used in whole or in part as the basis
for manufacture or sale of products without the written
permission of GARMIN Corporation.