Shively Labs 6822, Инструкция по установке, эксплуатации и техническому обслуживанию, Страница: 6 / 78

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Table of Contents
Install the slugged line section (if applicable). ....................................... 24
Figure 19 Slugged line section installation (if applicable)............. 25
Install the optional fine-matching transformer (if applicable) .................. 26
Figure 20 Fine-matching transformer installation........................ 27
Connect the antenna bay cables........................................................... 28
Figure 21 Antenna bay cable connection ................................... 28
Connect the tower transmission line. .................................................... 29
Figure 22 Tower transmission line connection............................ 29
Chapter 6 Connecting the Antenna (8-bay) .....................................31
Mount the power dividers. ................................................................... 31
Install the slugged line section (if applicable). ....................................... 31
Figure 23 Power divider mounting for 8-bay antenna ................. 32
Figure 24 Slugged line section installation (if applicable)............. 33
Install the optional fine-matching transformer (if applicable) .................. 34
Figure 25 Fine-matching transformer installation........................ 35
Connect the antenna bay cables........................................................... 36
Figure 26 Antenna bay cable connection ................................... 36
Connect the tower transmission line. .................................................... 37
Figure 27 Tower transmission line connection............................ 38
Chapter 7 Installing the De-icer System (if applicable)...................39
Precautions......................................................................................... 39
De-icer system description ................................................................... 39
Dual-setting thermostat .................................................................. 39
Electric power ................................................................................ 39
Table 3 De-icer specifications .................................................. 39
De-icer installation .............................................................................. 40
Installing the de-icer junction boxes. ............................................... 40
Figure 28 De-icer junction box installation ................................. 40
Figure 29 Junction box installed on antenna bay ........................ 41
Installing the interbay cables.......................................................... 41
Figure 30 Interbay cable section, bottom end ............................ 41
Figure 31 Sheath cut back........................................................ 42
Figure 32 Sheath bent back over the grommet .......................... 42
Figure 33 Final assembly, top of second junction box ................. 42
Figure 34 De-icer electrical schematic diagram........................... 43
Installing the tower junction box ..................................................... 44
Installing the thermostat (if applicable)............................................ 44
Table 4 Thermostat readings .................................................... 44
Chapter 8 Retuning ..........................................................................45
Before beginning retuning: .................................................................. 45
Setup ................................................................................................. 45
Tuning ............................................................................................... 46
Figure 35 Arm length vs. frequency .......................................... 46
Figure 36 Feed strap angle vs. frequency .................................. 46
Figure 37 Optimal VSWR at 108 MHz, narrow feedstrap ............. 47