Shively Labs 6822, Instruction Manual Installation, Operation, & Maintenance, Page: 7 / 78

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Table of Contents
Figure 38 Optimal VSWR at 108 MHz, wide feedstrap................. 48
Figure 39 Optimal VSWR at 88 MHz, wide feedstrap................... 49
Chapter 9 Startup.............................................................................51
Initial characterization ......................................................................... 51
Before beginning initial characterization: .......................................... 51
Read transmission line VSWR. ......................................................... 51
Read transmission line TDR............................................................. 51
Read system VSWR. ....................................................................... 51
Impedance trimming. .......................................................................... 52
Figure 40 Impedance-matching transformer .............................. 52
Checkout. ........................................................................................... 53
Operation. .......................................................................................... 53
Figure 41 Apply the signal. ....................................................... 54
Chapter 10 Maintenance ..................................................................55
Log .................................................................................................... 55
Inspection .......................................................................................... 55
Paint .................................................................................................. 55
Return policy ...................................................................................... 55
Troubleshooting .................................................................................. 55
Broad spectrum RF noise. ............................................................... 55
High VSWR .................................................................................... 55
Change in coverage........................................................................ 55
Chapter 11 Parts ..............................................................................57
Bay components 
(without de-icers) ............................................................ 57
Table 5 Components, antenna bay without de-icer (per bay) ..... 57
Figure 42 Components, 6822 bay (without de-icers)................... 58
De-Icer Components ........................................................................... 59
Table 6 Components, de-icer (per bay) ..................................... 59
Figure 43 Components, 6822 de-icer......................................... 59
Mounting system components.............................................................. 60
Up to 3-1/2" mounting pipe OD:...................................................... 60
Table 7 Components, mounts for up to 3-1/2" mounting pipe 
(per antenna bay) .......................................................... 60
Figure 44 Components, mounts for up to 3-1/2" mounting pipe .. 60
3-1/2" - 6" mounting pipe OD: ........................................................ 61
Table 8 Components, mounts for 3-1/2" to 6" mounting pipe 
(per antenna bay) .......................................................... 61
Figure 45 Components, mounts for 3-1/2" to 6" mounting pipe... 62
Feed system components .................................................................... 63
Table 9 Components, feed system for single-bay antenna ....... 63
Table 10 Components, feed system for 2-bay antenna

(per array) .................................................................. 63
Table 11 Components, feed system for 3-bay antenna 
(per array) .................................................................. 63
Figure 46 Feed system components for 2- to 6-bay antennas...... 64