CASTEL0022Base Station Transmitter

M850-001 Copyright TEL31/09/98 T850 Series II Base Station Equipment 400-520MHz Service Manual Issue 200 October 1998 M850-00-200 2M850-00 31/09/98Copyright TEL T800 T800 Head Office New Zealand Tait Electronics Ltd 558 Wairakei Road P.O. Box 1645 Christchurch New Zealand Phone: 64 3 358-3399 Fax: 64 3 358-3903 Radio Systems Division 535 Wairakei Road P.O. Box 1645 Christchurch New Zealand Phone: 64 3 358-1069 Fax: 64 3 358-6486 Australia Tait Electronics (Aust) Pty Ltd 186 Granite Street Geebung Queensland 4034 P. O . B o x 6 7 9 Virginia Queensland 4014 Australia Phone: 61 7 3865-7799 Toll Free: 1800 077-112 Fax: 61 7 3865-7990 Beijing Tait Mobile Radio (HK) Ltd Beijing Representative Office Room 812, Tower A Beijing Bright China Chang An Building No. 7 Jianguomennei Dai Jei Dongcheng District Beijing China 100005 Canada Tait Mobile Radio Inc. Unit 5, 158 Anderson Avenue Markham Ontario L6E1A9 Canada Phone: 1 905 472-1100 Toll Free: 1 800 890-8248 Fax: 1 905 472-5300 France Ta i t F r a n c e S a r l 2 Avenue de la Cristallerie 92 316 Sèvres, Cedex France Phone: 33 1 41 14-05-50 Fax: 33 1 41 14-05-55 Germany Tait Mobilfunk GmbH Willstätterstraße 50 D-90449 Nürnberg 60 Germany Phone: 49 911 96 746-0 Fax: 49 911 96 746-79 Hong Kong Tait Mobile Radio (HK) Ltd Unit 2216 North Tower Concordia Plaza No. 1, Science Museum Road Tsim Sha Tsui East Kowloon Hong Kong Phone: 852 2369-3040 Fax: 852 2369-3009 New Zealand Tait Communications Ltd Unit 4, 75 Blenheim Road P. O . B o x 1 1 8 5 Christchurch Phone: 64 3 348-3301 Fax: 64 3 343-0558 Singapore Tait Electronics (Far East) Pte Ltd 4 Leng Kee Road SIS Building #05-11A Singapore 159088 Phone: 65 471-2688 Fax: 65 479-7778 Ta i w a n Tait Mobile Radio (Taiwan) Ltd 1104, No. 142 Chung Hsiao E. Rd Sec. 4 Ta i p e i Ta i w a n Phone: 886 2 2731-1290 Fax: 886 2 2711-6351 Thailand Tait Mobile Radio Ltd 14/1 Suwan Tower Ground Floor Soi Saladaeng 1 North Sathorn Road Bangrak Bangkok 10500 Thailand Phone: 662 267-6290-2 Fax: 662 267-6293 United Kingdom Tait Europe Ltd Ermine Business Park Ermine Road Huntingdon Cambridgeshire PE18 6YA United Kingdom Phone: 44 1480-52255 Fax: 44 1480-411996 USA Tait Electronics (USA) Inc. 9434 Old Katy Road Suite 110 Houston Texas 77055 USA Phone: 1 713 984-8684 Toll Free: 1 800 222-1255 Fax: 1 713 468-6944 M850-003 Copyright TEL31/09/98 About This Manual ScopeThis manual contains general, technical and servicing informa- tion on T850 Series II 25W, 50W and 100W base stations which comprise the following equipment: FormatWe have published this manual in a ring binder so that "revision packages" containing additional information pertaining to new issues of PCBs can be added as required. Revision PackagesRevision packages will normally be published to coincide with the release of information on a new PCB, and may also contain additions or corrections pertaining to other parts of the manual. You may order as many packages as you require from your local Tait Dealer or Customer Service Organisation. Revision pack- ages are supplied ready-punched for inclusion in your manual. Revision ControlEach page in this manual has a date of issue. This is to comply with various Quality Standards, but will also serve to identify which pages have been updated and when. Each page and its publication date is listed in the "List of Effective Pages", and a new list containing any new/revised pages and their publica- tion dates will be sent with each revision package. Any portion of text that has been changed is marked by a verti- cal line (as shown at left) in the outer margin of the page. Where the removal of an entire paragraph means there is no text left to mark, an arrow (as shown at left) will appear in the outer mar- gin. The number beside the arrow will indicate how many para- graphs have been deleted. The manual issue and revision status are indicated by the last three digits of the manual product code. These digits start at 200 and will increment through 201, 202, 203, etc., as revision pack- ages are published, e.g: Thus, issue 203 indicates the third revision to issue 2 and means that three packages should have been added to the manual. The 25W base stationT855 receiver T856 25W transmitter 50W base stationT855 receiver T857 exciter T858 50W power amplifier 100W base stationT855 receiver T857 exciter T859 100W power amplifier 2 2 0 3 issue statusrevision status 4M850-00 31/09/98Copyright TEL issue digit will only change if there is a major product revision, or if the number of revision packages to be included means that the manual becomes difficult to use, at which point a new issue manual will be published in a new ring binder. PCB InformationPCB information is provided for all current issue PCBs, as well as all previous issue PCBs manufactured in production quanti- ties, and is grouped according to PCB. Thus, you will find the parts list, grid reference index (if necessary), PCB layouts and circuit diagram(s) for each individual PCB grouped together. ErrorsIf you find an error in this manual, or have a suggestion on how it might be improved, please do not hesitate to contact Customer Support, Radio Systems Division, Tait Electronics Ltd, Christch- urch, New Zealand (full contact details are on page 2). Updating Equipment And Manuals In the interests of improving performance, reliability or servicing, Tait Electronics Ltd reserve the right to update their equipment and/or manuals without prior notice. Copyright All information contained in this manual is the property of Tait Electronics Ltd. All rights are reserved. This manual may not, in whole or part, be copied, photocopied, reproduced, translated stored or reduced to any electronic medium or machine readable form without prior written permission from Tait Electronics Ltd. Ordering Tait Service Manuals You can order additional copies of this service manual from your nearest Tait Dealer or Customer Service Organisation. When ordering, make sure you quote the correct Tait product c…

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TEST REPORT REPORT NUMBER 1298OCT 1998 RADIO PERFORMANCE MEASUREMENTS on the T858-20-0500 Base Station Transmitter FCC ID: CASTEL0022 Serial N o 971711 in accordance with FCC 47 CFR Parts 22 and 90 PREPARED BY:Rob Weeks_____________________ Test Technician CHECKED & APPROVED BY:S.A. Crompton_____________________ Laboratory Manager TELTEST Laboratories Tait Electronics Limited PO Box 1645 558 Wairakei Road Christchurch 5 New Zealand Phone: +64 3 358 3399 Fax: +64 3 358 0432 FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 2 of 42 TABLE OF CONTENTS TESTPAGE TRANSMITTER OUTPUT POWER (CONDUCTED)3 AUDIO FREQUENCY FILTER4 TRANSMITTER AUDIO FREQUENCY RESPONSE6 MODULATION LIMITING8 MODULATION LIMITING (STEADY STATE)11 MODULATION LIMITING (INSTANTANEOUS)13 OCCUPIED BANDWIDTH15 SPURIOUS EMISSIONS (CONDUCTED)18 SPURIOUS EMISSIONS (RADIATED)23 TRANSMITTER FREQUENCY STABILITY (TEMPERATURE)28 TRANSMITTER FREQUENCY STABILITY (VOLTAGE)30 TRANSIENT FREQUENCY BEHAVIOUR31 LIST OF TEST EQUIPMENT40 FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 3 of 42 NAME OF TEST:TRANSMITTER OUTPUT POWER (CONDUCTED) TEST CONDITIONS:Ambient temperature 24 o C Relative humidity40 % Standard Voltage120VAC SPECIFICATION:FCC 47 CFR 2.985 (a) GUIDE:TIA/EIA-603 2.2.1 MEASUREMENT PROCEDURE: 1. The Unit Under Test (EUT) was set up as shown on the following diagram. 2. The coaxial attenuator used has an impedance of 50 Ω . 3. The unmodulated output power was measured by means of an RF Power meter. MEASUREMENT RESULTS: Manufacturers rated output power:Continuously variable 10W to 50W 460.1MHz50W nominal10W nominal Watts50.4010.11 % Variation from nom+0.7+1.2 Measurement uncertainty (dB) +0.63 -0.68 LIMIT CLAUSE:FCC 47 CFR 90.205 Radio Type: Base Station Frequency Band: 440MHz - 480MHz (n)The output power shall not exceed by more than 20% the manufacturers rated output power for the particular transmitter. TEST SETUP:See page 39 for test equipment information. EUT AC CABLE POWER SENSOR ATTENLOAD POWER METER 85 15 70 63, 65 16 FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 4 of 42 NAME OF TEST:AUDIO FREQUENCY FILTER RESPONSE TEST CONDITIONS:Ambient temperature 25 o C Relative humidity40 % Standard Voltage120VAC SPECIFICATION:FCC 47 CFR 2.987(a) GUIDE:TIA/EIA-603 2.2.15 MEASUREMENT PROCEDURE: 1. The Unit Under Test (EUT) was set up as shown on the following diagram. 2. The EUT was set up in such a way that the audio input and audio output were connected directly to the audio low pass filter circuitry. 3. A tone of 1000 Hz was set as a reference. 4. The AF applied to the filter was varied, with the level held constant. The filter response in dB was plotted. MEASUREMENT RESULTS: See the plot on following page. LIMIT CLAUSE:FCC 47 CFR 90.211(a) TEST SETUP USED: See page 39 for test equipment information. LOAD SCOPE AF GEN AUDIO ANAL 22 70 12 12 EUT AC FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 5 of 42 NAME OF TEST:AUDIO FREQUENCY FILTER RESPONSE SPECIFICATION:FCC 47 CFR 2.987(a) 100100010000100000 -70 -60 -50 -40 -30 -20 -10 0 10 20 Frequency Hz Attenuation dB Audio ResponseLimit LOW PASS FILTER RESPONSE CASTEL 0022 FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 6 of 42 NAME OF TEST:TRANSMITTER AUDIO FREQUENCY RESPONSE PRE-EMPHASIS TEST CONDITIONS:Ambient temperature 19.5 o C Relative humidity55 % Standard Voltage120VAC SPECIFICATION:FCC 47 CFR 2.987 (a) GUIDE:TIA/EIA-603 2.2.6 MEASUREMENT PROCEDURE: 1. The Unit Under Test (EUT) was set up as shown on the following diagram. 2. An audio input tone of 1000Hz was applied, the level set to obtain 20% max deviation. This was used as the 0dB reference point. 3. With the input level held constant, the AF frequency was varied. 4. The response in dB relative to 1000Hz was measured. MEASUREMENT RESULTS: See the plots on following page for both 12.5KHz and 25KHz channel separation. LIMIT CLAUSE:TIA/EIA-603 4.2.6 TEST SETUP:See page 39 for test equipment information. AF GEN EUTCABLEATTEN MOD ANAL 13 11 8338 AC FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 7 of 42 NAME OF TEST:TRANSMITTER AUDIO FREQUENCY RESPONSE PRE-EMPHASIS SPECIFICATION:FCC 47 CFR 2.987 (a) 100100010000 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 Frequency Hz AF Response dB AF ResponseUpper LimitLower Limit TRANSMITTER PRE-EMHASIS CASTEL 0022 12.5KHz Channel Spacing 100100010000 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 Frequency Hz AF Response dB AF ResponseUpper LimitLower Limit TRANSMITTER PRE-EMHASIS CASTEL 0022 25KHz Channel Spacing FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 8 of 42 NAME OF TEST:TRANSMITTER MODULATION LIMITING TEST CONDITIONS:Ambient temperature 22 o C Relative humidity45 % Standard Voltage120VAC SPECIFICATION:FCC 47 CFR 2.987 GUIDE:TIA/EIA-603 2.2.3 MEASUREMENT PROCEDURE: 1. The Unit Under Test (EUT) was set up as shown on the following diagram. 2. The modulation response was measured at three audio frequencies, varying the input level. 3. Measurements were made for both positive and negative deviation. MEASUREMENT RESULTS: See the plots on following pages for both 12.5KHz and 25KHz channel spacing. LIMIT CLAUSE:FCC 47 CFR 90.211(a) TEST SETUP:See page 39 for test equipment information. AF GEN EUTCABLEATTEN MOD ANAL 13 11 8338 AC FCC ID: CASTEL 0022 TELTEST REPORT 1298 TAIT 858-20-0500 BASE STATION TX S/N 971711 Page 9 of 42 NAME OF TEST:TRANSMITTER MODULATION LIMITING SPECIFICATION:FCC 47 CFR 2.987 -90-80-70-60-50-40-30-20-10010 0 1 2 3 Inp ut le ve l d B m Deviation KHz 300 Hz1000 Hz2000 HzLimit MODULATOR LIMITING (Negative Deviation) CASTEL 0022 12.5KHzChannel Spacing








  
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