BIRD 424-86A-03 Page 1 Installation And Operation Manual Download

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OU'RE

EARD,

OUD AND

LEAR.

8625 Industrial Parkway, Angola, NY 14006 Tel: 716-549-4700 Fax: 716-549-4772 [email protected] www.bird-technologies.com

Installation and Operation Manual for

AutoQuad Tower-Top Amplifier System

Model 424-86A-03 and 424-86A-03-48

Manual Part Number

7-9322-5

Summary of Contents for 424-86A-03

Page 1: ...al Parkway Angola NY 14006 Tel 716 549 4700 Fax 716 549 4772 sales birdrf com www bird technologies com Installation and Operation Manual for AutoQuad Tower Top Amplifier System Model 424 86A 03 and 4...

Page 2: ...eed at the time the order is placed seller reserves the right to make partial shipments for which payment shall be made in accordance with seller s stated terms Shipments are made with transportation...

Page 3: ...mportant Information CAUTION or ATTENTION High Voltage Use Safety Glasses WARNING Bird Technologies Group TX RX Systems Inc Manual Part Number 7 9322 Copyright 2006 TX RX Systems Inc First Printing Ma...

Page 4: ......

Page 5: ...1 Installed Sensitivity Test 12 Calculate Cable Loss 12 Tri Mode Test Port 13 Test Port Sensitivity with Dummy Load Mode 1 14 Test Port Sensitivity with Antenna Mode 0 14 Spectrum Analysis 16 Antenna...

Page 6: ...10 Measuring test port sensitivity with dummy load 13 Figure 11 Measuring test port sensitivity with antenna 14 Figure 12 Testing output spectrum 15 Figure 13 Maximum signal level mask 15 Figure 14 A...

Page 7: ...automatically switches to the identical second ary quad amplifier if conditions indicate a primary malfunction If the secondary quad amplifier mal functions operation switches to whichever quad amplif...

Page 8: ...lifier MCA NOTE 48 VDC converter used in model 424 86A 03 48 3 19052 Daughter Board 8 18150 Power Supply 3 18171 8 Way Power Divider 3 18171 8 Way Power Divider 3 18173 4 Way Power Divider 3 19037 Qua...

Page 9: ...s 18 MHz BW Loss 1 dB Rejection 110 dB 776 and 851 MHz LNA Type Quadrature Coupled Modular Gain 24 dB Noise Figure 1 4 dB 1 dB Compression Point 27 5 dBm 3rd Order Input Output IP 17 dBm 41 dBm Power...

Page 10: ...screws for the various assemblies to insure nothing loosened dur ing shipment Pre installation Static Sensitivity Testing Hookup and test the entire system at ground level to verify that all componen...

Page 11: ...m Max out of band signal dBm Max out of band signal dBm Max out of band signal dBm Date Initial Date Initial Date Initial Test Cable length type Test Cable length type Test Cable length type RX Serial...

Page 12: ...maximize antenna isolation Although most 800 MHz transmitters are connected to their antenna through a combiner it is quite likely that the com biner does not have enough transmitter noise filter ing...

Page 13: ...8 LDF Test Port Mainline Installation must conform to R56 Standards 1 2 Superflex for all internal RF runs DC Pickor Lightning Protection on each RX mainline Motorola part no DSISDC50LNZ30MA 1 2 3 4 5...

Page 14: ...to perform properly See the fol lowing sections for specific installation instructions Installing the Tower Top Box Figure 6 shows some of the mechanical features of the tower top box Four mounting t...

Page 15: ...over the connectors completely with tape Installing the Multicoupling Amplifier The MCA is designed for indoor mounting in a common 19 inch relay rack or cabinet The follow ing steps are required for...

Page 16: ...ce Table 5 lists the optimum reserve gain settings for various signal types It should be kept in mind that these values are not extremely critical Systems that depart from these gain settings can stil...

Page 17: ...se amplifier and the input of the station receiver Typically 2 to 3 dB of attenuation is usually required for unity gain The default factory setting for multicoupler gain is 1 dB Use the attenuation v...

Page 18: ...temporarily con nect the test cable to the antenna port Temporarily disconnect the test cable from the rear of the MCA and connect it to the output of your signal genera tor The correct connections a...

Page 19: ...This mode facilitates sweeping the transmission line and antenna with minimal disruption to the system Mode 0 is the systems default mode of operation To change the mode perform the following steps 1...

Page 20: ...signal loss per foot at 800 MHz and higher If differ ent cable lengths are used when making tests it will contribute to significant variability of the mea sured levels Record the test port sensitivity...

Page 21: ...the output spectrum of the TTA system 30 35 40 45 50 55 60 65 70 75 80 dBm Receive Band 35 dBm to 45 dBm Transmit Band Less than 55 dBm Remaining Spectrum Less than 75 dBm Transmit Band Receive Band F...

Page 22: ...a graph which indicates the maximum desired measured signal levels both inside and outside of the transmit and receive bands TTA filter selectivity and antenna space isolation are the dominant factor...

Page 23: ...antenna input con nector located on the bottom of the box Next sig nals pass through a PolyPhaser surge suppressor which provides protection from lightning strikes After passing the surge suppressor...

Page 24: ...5 Bandpass Filter 3 15878 Sample Port Path A Path B DC Solid State Switch Solid State Switch Amplifier 3 18941 or 3 19285 Amplifier 3 18941 or 3 19285 Output Switch 3 19033 Main RF Cable Test Port Cab...

Page 25: ...trol Attenuation Control Warning Alarm Failure Alarm Base Amplifier 3 19037 RF Attenuator RF Attenuator 4 Way Power Divider 3 18173 8 Way Power Divider 3 18171 8 Way Power Divider 3 18171 Alarm Termin...

Page 26: ...w a dull green Form C Contacts ALARM and WARNING Form C relay contacts are located at the back of the MCA see figure 8 These screw terminals are intended for connection to the customer s supervisory a...

Page 27: ...nter mittent or continuous loss of effective receive channel sensitivity sometimes accompanied by audible interference in FM systems or dropouts in digital radios Sensitivity loss on a continuous basi...

Page 28: ...circuit failure is indicated and the MCA should be returned to the factory for repair 4 AC Line Fuse A failure of the power supply will obviously shut the tower amplifier down because of high signal l...

Page 29: ...amp locking screws uniformly after inspection so that the door gasket seal is maintained Tighten each clamp about half way then start back at the first clamp and fully tighten each one in the same ord...

Page 30: ...alarm trip point must be adjusted To adjust the trip point press and hold down the ENTER button for 15 seconds This will place the MCA in the Test Mode and the display will show the first Test Mode me...

Page 31: ...deck will increase the total system outputs to 32 The preselector will help limit the multicoupler bandwidth Narrowband Preselector Filter This option is designed to be added to the RF sig nal path ju...

Page 32: ...31 4 8 1 738 3 02 0 569 0 324 4 9 1 758 3 09 0 562 0 316 5 1 778 3 162 0 556 0 309 5 1 1 799 3 236 0 55 0 302 5 2 1 82 3 311 0 543 0 295 5 3 1 841 3 388 0 537 0 288 5 4 1 862 3 467 0 531 0 282 5 5 1 8...

Page 33: ...ts The graph on the back page will allow you to quickly determine VSWR It should be remembered that the field accuracy of wattmeter readings is subject to considerable variance due to RF connector VSW...

Page 34: ...0 4 0 3 0 2 0 1 0 0 5 40 20 10 8 0 6 0 4 0 2 0 1 0 0 8 0 6 0 4 0 2 1 1 1 1 15 1 1 2 1 1 25 1 1 3 1 1 4 1 1 5 1 1 6 1 1 8 1 2 0 1 2 5 1 3 0 1 FORWARD POWER Watts REFLECTED POWER Watts FOR OTHER POWER L...

Page 35: ...50 75 100 125 150 200 250 300 3 25 38 50 63 75 100 125 150 2 5 28 42 56 70 84 112 141 169 2 32 47 63 79 95 126 158 189 1 5 35 53 71 88 106 142 177 212 1 40 60 79 99 119 159 199 238 5 45 67 89 111 134...

Page 36: ...8625 Industrial Parkway Angola NY 14006 Tel 716 549 4700 Fax 716 549 4772 sales birdrf com www bird technologies com...

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