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307
Posted on Tuesday, November 27, 2001 - 8:01 pm:   Edit Post Delete Post    Move Post (Moderator/Admin Only)

PLL and Synthesizer Alignment Procedure


1)Attach frequency Counter to TP3 (R-74) as in Picture #1.

TP3_R-74
Picture #1

2)Mode to AM ,Channel 19: Clarify 12:00 position: Adjust L19 for 16.4900 MHz. (Pictures #2 and #3)

L19
Picture #2

164900
Picture #3

3)Mode to USB: Clarify 12:00 position: Adjust L20 for 16.4925 MHz.(Pictures #4 and #5)

L20
Picture #4

164925
Picture #5

4)Mode to LSB: Clarify 12:00 position: Adjust L21 for 16.4875 MHz.(Pictures #6 and #7)

L21
Picture #6

164875
Picture #7

5)Mode to USB: Connect Freq. Counter to Tp-6 (bare top lead of R102). Adjust L27 for 10.6925 MHz.(Picture #8 , #9 and #10)

TP-6
Picture #8

L27
Picture #9

106925
Picture #10

6)Mode to LSB: Adjust L28 for 10.6975 MHz.(Picture #11 and #12)

L28
Picture #11

106975
Picture #12

7)AM: TX mode: Adjust L26 for 27.1850 MHz. (Picture #13 and #14)

L26
Picture #13

27185
Picture #14

This completes the PLL and Synthesizer alignments , continue with next topic.
(Transmitter Alignment)

Questions? Contact tech307@copperelectronics.com