Antenna Alignment a 3 3.01 For the Model 8000 radio system to operate properly, the near and far ends must be aligned as accurately as possible. Antenna alignment requires two persons who are able to communicate with each other, one at the near end and the other at the far end. 3.02 You will need these tools to align the antennas: * HEY O'Brien (awed oF the risk of fal Binoculars or the equivalent {if the far end is more their one-half mile distant}, High-powered (e.g.
Lars BO-800-281 tissue 1, September 1998 Follow these steps to align the near-and and far-end antennas: Using a local map, determine the proper direction to point the antenna. Check that both shoehorn are horizontally polarized {there is a “zero” indication on the feed that should be turned so that it is on the side of the feed at both ends). Verify that the pseudo random number (PNS) codes are properly set to insurance communications. Turn on power to both the near-end and far-end systems.
Section 3 Antenna Alignment {continued} 12. Instruct the fér end to perform the same procedure. 13. Readjust the near-and and far-end antennas for 8 minimum reading on the voltmeter. 14, Tighten the superman's securing ard adjustment hardware, Make curtain that the mounting is sufficiently rigid to assure alignment accuracy under maximum expected wind loading. The Model 8000 is now ready to be tested for acceptance.
Lars BO-600-281 Issue 1, September 1899 3.4 Antenna Swing Range Antenna Adjustment Bolts 50° Invent antenna mounting for 50° range below horizon U-Boas [= Azimuth Adjustment J f Screws > ¢ r— Azimuth Adjustment Clamp Elevation Adjustment Aod Elevation Pivot Antenna Pointing Requirement Beam center line must be ~ accurate within 4° Hi {vertical and horizontal) Figure 3-1.
Section 3 ~ Antenna Alignment Ait high-powered spotlight along path of antenna Figure 3-2, Aiming Antenna Lars 80-600-281 Issue 1, September 1988 35
SEE Radio System Acceptance and Turnip 4 The Model 8000 has two built-in tests which san be run from a terminal connected to the LOCAL port. These tests make installation checkout and acceptance testing easy to do without additional test equipment, Instructions for running each of the tests follow.
Lars 80-600-281 issue 1, September 1999 E1/DS1 Control Module AF Module Test 1x0] 0 Sequence Loop back Receiver RxD AxD Test ~1 Sequence Transmitter Virtual Data Connection Figure 4-1. E1/DS1 Loop back Test 4.12 Torn Test 1 from the VT-100 or compatible terminal connected to one of the local virtual data circuits ports, perform these steps: 1. At the DSX, loop back each of the receive E1 or DS1 lines from the 9000 to the transmit lines to the 9000. 2. Run Test 1.
Section 4 ~ Radio System Acceptance and Turin EDITS Control Module RF Mode RF Wodge + Control Module £11081 < fi pgs o Ral) Rab Tonnes T Tenn Vital Data x noes an Connection ‘Noi End Far End Trichina Trimming Figure 4-2. Near-end to Far-end Loop back Test 4.22 Torn Test 2 from a VT-100 or compatible terminal connected to one of the virtual date circuit ports, perform these steps: 1 At the DSX, loop beck -sate of the receive £1 or DS1 lines from the S000 to the transmit Hines to the S000, 2.
Lars BO-600-281 Issue 1 September 1989 or BUT owe Tear weight wa] Tas HEIR RIGOBERTO RIEL SAE RS : HEEHAW CRIES SEB REAR DEENA EN : ¥ Figure 4-3.
Checklists 5 8.01 If you have not completed the Site Planning/Preparation Worksheet in Lars Practice B-801-281, fil in the following checklist BEFORE installing the Modal 8000. If vou have already completed the preparation worksheet, continua with the installation checklist beginning on page §-8, 5.1 P re-instaliation Checklist 6.11 Path Survey Is the path less than 15 miles? II Yes {No For a given distance, the height of the antenna must be sufficient to clear all obstacles in the path.
Lars 80-600-281 Issue 1, September 1899 5.12 Interference Survey {1 Within the whole spectrum of operation, 0 High tension lines. 0 Sodium or mercury vapor arc lamps in the first Fresnel zone. (The Fresnel zone is the distance from the transmitter to any point on the sheila and on to the receiver.) OO Industrial area. Watch for high energy sources (e.g. airports, radio pagers, weather radar}, [0 Polarization-dependent interference.
5.12 5.13 Section 5 ~ Checklists {continued} How many of the following are in view? 3 Homes J Factored __ | {I Businesses I Apartment buildings {This helps characterize the potential for interference from microwave ovens.) Any roadie or radar signals detected between 5.78 GHz and 5.
Lars 80-800-281 issue 1, September 1999 8 4 Equipment Room Requirements Does the site have power? 1 Yes No Does the site have a place to install the Model S000 assembly and peripheral equipment? d Yes ONe Access 10 E1/DS1s within 658 feet? O Yes T'No Adequate air conditioning or ventilation? II Yes ONo Telephone fine connection believable? Electrical support required: £) Vde {3120 Vac 0220 Vag [J Vdi converter I Convenience ousts Cable routes for customer connections to the Model 9000; [J Primary power [3 E
Section 5 — Checklists {continued} Roof mounting: * Will the roof support the weight? 0 Yes 0 No is there legal and physical access to the roof? J Yes * Permission to be at that location (permits, etc.
Lars BO-800-281 issue 1, September 1998 Installation Checklist 5.201 Use this checklist to check off (v1 sate of the installation tasks as you complete it. You can find information and instructions for the tasks as referenced. Receiving Equipment Refer to subsection 1.1 for instructions. {1 Carefully check unpacked and inventoried equipment against the packing lists}.
Section 5 ~ Checklists 5.22 (continued) Oo a Connect the interface cable from the controller to the RF unit {paragraph 2.302). Mount the antenna on the mast or tower {paragraph 2.302). Connect the coaxial cable from the RF unit to wave guide and the wave guide, in turn, to the antenna (Figure 2-5), Ground the wave guide (Figure 2-8). Power on the maintenance terminal and set its data parameters, i.e. rate, bits, start, stop, and parity {subsection 2.6). 5.
Lars 8-800-281 tissue 1, September 1889 sts. {continuation) To change the default setting: 0. Type HEEL E1 or HELP DS1 £1 Select each of the options for the first E1/DS1 channel. £) Enter the next E1/DS1 channel and repeat the process for ail four channels, 6.24 Power Application 01 power up unless the tense system is connected.
Section § ~ Checklists 5.24 {continued} 00 The expected AGC voltage for the path should be part of per-installation information. (Refer to paragraph 3.03.) If this is not available, contact Lars for the calibration of these units. A larger voltage indicates that the antennas may not be pointed correctly, the feeds may be misaligned, or an object may be blocking the path. If the voltage is lower than expected, a source of interference may be present, 5.
Lars. BO-800-281 tissue 1, September 1899 EEE RE ss LOCAL port CRT or PC (DB-8 female) DIE (DB-25 male) pin pin 1° pCO CONDIGN: 1 2 RXD CT 2 3 TX RXD 3 & DR RIS 4 5 DONS Tee CTS 8 6 DSR TT DSR 6 7 RTS GRIND 7 8 CT8 och 8 g Ri DIR 20 Figure 5-1. LOCAL Port Cable Wiring (9-pin to 25-pin} LOCAL port PC OTE (OB-¢ female) DTE (DB-9 female) pin pin 1 DCD Dep TXD ~ TAD 3 4 DIR DIR. 4 & SEND SEND 8 6 DBR DSR 8 T RTE solos transmissions BYE 7 8 CTS DCD Figure 5-2.
action B ~ Checklists 5.26 Modem Setup To set up the modem, you will need to use the system console attached to the LOCAL port {refer to paragraph 5.28) Because setting up the modem can be a difficult process, it is strongly recommended that this be done BEFORE putting the 8000 system into service. : {1 Select the modem baud rats using the HELP PORT command at the console. On-line HELP can be accessed if the manual is not available.
Lars BO-800-281 Cae issue 1, September 1999 SRY a 5.268 B12 {continued} £ Apply power to the modem, 0 At the LOCAL console, use the CON command to gain “transparent” access to the modem. Anything you type at the console will be sent to the modem and anything received from the modem will be displayed on the screen, [1 Type AT followed by the ENTER or Carriages Return key. if the modem responds with "OK", then everything has been done correctly, the TRADER ake to and powered up.
, Section § ~ Checklists 5:27 Troubleshooting 0 if there are problems, try changing the REMOTE port baud rate. Use the CON command to access the modem as described above. oF \Same baud £1 I this fails, use the DTE command at the LOCAL console to manipulate the RTS snd DTR signals at the REMOTE port to try 1o force the modem 1 respond, 0 if the modem has special initialization requirements, enter them into the initiation string using the MODEM command, [3 # your local telephone company uses pulse dialing ins
Lars 80-600-281 issue 1, September 1998 6.03 {continued} e. Lars also reserves the right to make product improvements without incurring any obligation or ability to make the same changes in products previously manufactured or purchased, In no event shall Lars be liable for any breach of warranty in an amount exceeding the net selling price of any defective product.
Equipment Issue formation 7 7.
Lars 80-600-281 issue 1. September 1989 10.01 (continued) Descriptor Installation Kit, Controller Assembly mounted rack Antennae Jumper Cable D81 Single-ended Route Diversity Switch Circuit Pack RouteSwitch™. 12-slot, 19” shelf Cable with N-type Connectors, RF Mauled to Wave guide, 3 feet Frequency Translator, 5.