M5HTX700Multi-frequency pocket transmitter

TX700.148 TX700.132 TX700.64 TX700.32 700 SERIES-MULTI-FREQUENCY POCKET TRANSMITTER Page 2file: tx700ins2master.doc file: tx700ins2master.docPage 3 INSTRUCTION MANUAL Covers the following models: 700 SERIES : TX700.148, TX700.132, TX700.64, TX700.32, Part No IMTX700-1.1 Page 4file: tx700ins2master.doc Contents file: tx700ins2master.docPage 5 General description ..............................................................7 Main Features .......................................................................8 Unique Micron Companding System.....................................11 Control Panel .......................................................................12 Switch panel ........................................................................13 Transmitter Powering ...........................................................16 Battery Test and Transmitted Warning.................................17 Automatic Level Control System ..........................................18 Operating Instructions ..........................................................19 How to get the best from the MICRON ................................21 Interference ..........................................................................23 Technical Data .....................................................................25 Antenna Data .......................................................................28 Transmitter Input Connectors...............................................29 Transmitter Cables ..............................................................30 Cable Ended Microphones ..................................................36 Distributors ......................................................................Appendix Page 6file: tx700ins2master.doc General Description file: tx700ins2master.docPage 7 The Micron TX700’s sophisticated design is based around a low-noise VCO, with digitally controlled PLL circuit, producing the highest possible quality of transmitted signal. The lightweight, yet rugged aluminium extrusion case provides strength and durability, and is designed to withstand the heavy demands of location use, while being comfortable to wear - ideal for situations where concealment is important. The unique battery compartment design enables fast and easy battery replacement. Adjustment of the audio level is straightforward, with the modulation level control easily accessible through the TX700’s top panel, where peak-reading LEDs (-10 and 0dB) indicate the audio level, allowing repeatable levels to be set. The TX700 includes a soft audio limiting circuit, with the threshold user-adjustable to give a wide range of operation from fully automatic to no limiting action. The advanced design enables the limiter to be used as an automatic level control, without the pumping effect usually associated with audio AGC, and it can also be used as a ‘distortionless’ emergency limiter to prevent over-modulation. Additional front-end protection is provided by a bass-cut switch, which may be used to reduce wind noise and counteract close-microphone effects. The use of dedicated audio input cables enables the transmitter to accept line and mic level signals, and to power a wide variety of microphone types. The TX700 is equipped with a battery condition indicator on the top panel, and also transmits an inaudible ‘low battery voltage’ warning signal, which activates a visual indication on the matching Micron receiver. The MICRON POCKET TRANSMITTER is available in 4 different models: - Model Number:Number of Channels:Frequency Range: TX700.148100470-865MHz TX700.132100470-865MHz TX700.6464470-865MHz TX700.3232470-865MHz This instruction manual can be used for all the above models, detail differences will be indicated where applicable Main Features Page 8file: tx700ins2master.doc Switchable Frequency Operating frequencies can be selected from two BCD coded switches located in the switch panel label. 100 positions – TX700.148 100 positions – TX700.132 64 positions – TX700.64 32 positions – TX700.32 Unique Micron Companding System The MICRON 700 series feature a double ended system which first compresses the dynamic range of the signal in the transmitter, and then expands it again in the receiver. Automatic Gain Control Option The design of the limiter in the MICRON transmitter enables it to be used as an automatic gain control system without the pumping effect associated with audio A.G.C. systems. It can also be used as a 'distortionless' limiter to prevent distortion due to over modulation. 'Overload proof' audio input amplifier The variable gain microphone amplifier has a gain control range of 40dB. Distortion is less than 0.3% over the whole of this range. Main Features file: tx700ins2master.docPage 9 L.E.D. Volume Indicator One problem associated with radio microphones is the setting of the modulation level. As with tape recording, too low a setting results in a poor signal to noise ratio, too high a setting causes distortion. A common practice is to adjust the audio gain of the transmitter until distortion is heard and then 'back off a bit'. The MICRON transmitter is fitted with a simple L.E.D. volume indicator (‘0’ and ‘-10’) to allow the modulation level to be set quickly and accurately, without having to monitor the receiver output. Multiple Input microphone socket The 6 way Lemo connector provides: 1. A high sensitivity input for dynamic and condenser microphones. 2. Direct powering connection for electret microphones (+ve and –ve bias). 3. Powering for 12V 'T' powered condenser microphones. 4. Powering for 12V 'Phantom' powered condenser microphones. 5. Powering for 48V 'Phantom' powered condenser microphones with Micron P48 in-line dc booster. 6. Line input capability. 7. External powering for transmitter. Main Features Page 10file: tx700ins2master.doc Automatic Warning of Transmitter battery failure The battery warning system transmits an inaudible signal when the transmitter batteries are reach…

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17 mm 2.5 mm 3 mm 11.55 mm 19.22 mm 29.35 mm R3 mm 49 mm 74 mm 45 Ø4.5 mm Title : TX700 label Date : 01-10-01 Size : 1:1 Drawn by : Sami Pars Audio Engineering Ltd SW 2 W 1 SW 1 SW2 0 1 2 3 4 5 6 7 0 1 2 3 4 5 6 7 TX700.64 Serial Number :- 123456789 Frequency Range :-722-746MHz FCC ID : M5H TX700 SW 2 W 1 SW 1 SW2 Transparent window 54 x 44 mm TX700 LABEL DIMENSIONS Label 2 : 64 frequency label (8 x 8) 0 2 4 6 1 35 7 0 2 4 6 1 35 7 Text height Arial, 1.6 mm Text height Arial, 2.05 mm 0 2 4 6 1 3 5 7 0 2 4 6 1 35 7 0 2 4 6 1 35 7

EQUIPMENT: TX700-148 FCC Identifier: M5H CTMS FCC Registration Number : 93385 TEST REPORT NUMBER: CTMS 2002/2273 Page 1 of 57 CTMS Ltd. 3 Cardinal Park Godmanchester Huntingdon Cambridgeshire PE29 2XN The results in this report refer to the tested unit only TEST REPORT ON TX700-148 Body-worn Portable Transmitter FCC Authorization Procedures Part 2 subpart J and part 74 TEST REPORT NUMBER CTMS 2002/2273 May 2002 Prepared for: Audio Engineering Ltd. 3 New Road London N8 8TA United Kingdom EQUIPMENT: TX700-148 FCC Identifier: M5H CTMS FCC Registration Number : 93385 TEST REPORT NUMBER: CTMS 2002/2273 Page 2 of 57 CTMS Ltd. 3 Cardinal Park Godmanchester Huntingdon Cambridgeshire PE29 2XN Certificate of Test Cambridge Test and Measurement Services Ltd., certifies that the product listed was fully tested to the requirements of Parts 2 & 74 of the FCC Code of Regulations 47CFR, the results of which are contained in this test report No: CTMS 2002/2273 Signed on behalf of the company: Signature : Date : 07/05/02 Name : S. Leeding Title : Managing Director EQUIPMENT : TX700-148 TEST REPORT NUMBER: CTMS 2002/2273 FCC Identifier : M5H CTMS FCC Registration Number : 93385 Page 3 of 57 General Test Information Date Test Sample Received : 21 st February 2002 Date Testing Started : 9 th April 2002 Date Testing Finished : 4 th May 2002 Equipment Serial Number : 170202989 (low), 151101018, (mid), 170202987 170202987 (high) CTMS Project Number : 2002/2273 Test Engineer : M. Billis Report Copy No 1 EQUIPMENT : TX700-148 TEST REPORT NUMBER: CTMS 2002/2273 FCC Identifier : M5H CTMS FCC Registration Number : 93385 Page 4 of 57 TABLE OF CONTENTS Part PAGE No 2.1033 Application for Certification 5 2.1046 RF Power Output at terminals 6 2.1047 (a) Modulation Characteristics 7 2.1047 (b) Modulation limiting characteristic 11 2.1049 (1) Occupied Bandwidth 18 2.1051 Spurious emissions at antenna terminals 22 2.1053 Field Strength of Spurious Radiation 32 2.1055 (a)(1)(d)(2) Frequency Stability 37 2.1057 Frequency spectrum to be investigated 41 General Information and Attachments : 42 Equipment Under Test 42 Photographs of Equipment. 43 Company Accreditations & Credentials 50 EQUIPMENT : TX700-148 TEST REPORT NUMBER: CTMS 2002/2273 FCC Identifier : M5H CTMS FCC Registration Number : 93385 Page 5 of 57 2.1033 Application for Certification For use in accordance with FCC Rules and Regulations 47 CFR parts 2 and parts 74. 2.1033 (c) (1) Name of applicant : Audio Engineering Ltd. Address of applicant : 3 New Road, London, N8 8TA, United Kingdom. Contact : Mr. Aldo Hakligil 2.1033 (c) (2) FCC Identifier : M5H Model Type Number : TX700-148 2.1033 (c) (3) Installation and operating instructions : See attachments. 2.1033 (c) (4) Type(s) of emission : Frequency Modulated 200KF3E 2.1033 (c) (5) Frequency range : 470.000 – 746.000 MHz 2.1033 (c) (6) Output power range : 47 mW 2.1033 (c) (7) Maximum power rating (part 74) : 250 mW 2.1033 (c) (8) dc voltage applied to power amplifier : See attachments. dc current to power amplifier : See attachments. 2.1033 (c) (9) Tune-up procedure for RF power : See attachments. 2.1033 (c) (10) Schematic and description of circuit : See attachments. 2.1033 (c) (11) Photograph of identification plate / label : See attachments. 2.1033 (c) (12) Photographs of equipment : See page 43 2.1033 (c) (14) Measurement data : This report – 2002/2273 EQUIPMENT : TX700-148 TEST REPORT NUMBER: CTMS 2002/2273 FCC Identifier : M5H CTMS FCC Registration Number : 93385 Page 6 of 57 47 CFR Part 2.1033 (c) (14) RF Power Output at terminals - 47 CFR 2.1046 The transmitter is operated under standard test conditions, using the standard test voltage from a single 9V PP3 type battery. The transmitter is coupled to the power meter by via it’s antenna socket. The transmitter is tuned by the manufacturer in accordance with the stated procedure, keyed in an unmodulated condition, and the RF Power Output is observed and recorded. The RF Power Output is measured in accordance with the following test configuration, using the test instruments listed, on the lower, mid and upper frequencies of the switching range. (Calibrated items are indicated in Blue) EUT Power Sensor Power Meter Ambient Conditions. Temperature = 21ºC Relative Humidity = 35 % Test instruments used : RF Power Meter : Hewlett Packard Type HP 435B, S/N 2005A03070. RF Power Sensor : Hewlett Packard Type HP 8481B, S/N 1801A01640 Results in accordance with Part 2.1046 and 74.861. e.(1) Unmodulated Power TRANSMITTER POWER (mWatts) 470.000 MHz 608.000 MHz 746.000 MHz 47.0 mW 27.5 mW 30.5 mW LIMIT in 74.861 (e) (1) (ii) 250 mW EQUIPMENT : TX700-148 TEST REPORT NUMBER: CTMS 2002/2273 FCC Identifier : M5H CTMS FCC Registration Number : 93385 Page 7 of 57 Modulation Characteristic - 47 CFR 2.1047 (a) The transmitter is operated under standard test conditions and the output monitored with a modulation analyser of normal impedance matching that of the transmitter. A test signal of 1000Hz sine wave is applied to the normal input of the modulation circuit via a dummy capsule to the audio processing circuits, the level adjusted to give ±25 kHz deviation. Ensuring the audio input level is maintained constant, the modulation frequency is varied from 50Hz to 25,000Hz. The variation in the depth of modulation is observed and recorded. The modulation characteristic was measured in accordance with the following test configuration, using the test instruments listed. (Calibrated items are indicated in Blue) EUT Modulation Analyzer Audio Analyzer AC Generator Voltmeter Ambient Conditions. Temperature = 22ºC Relative Humidity = 36 % Test instruments used : Audio Analyzer : Hewlett Packard Audio Analyzer Type HP 8903B, S/N2836A05420 Modulation Analyzer : Hewlett Packard Mod Analyzer Type HP 8901B, S/N2642A01009 EQUIPMENT : TX700-148 TEST REPORT NUMBER: CTMS 2002/2273 FCC Identifier : M5H CTMS FCC Registration Number : 93385 Page 8 of 57 Results in accordance with Part 2.1047(a) and 74.681…

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