CASTBA8K2Base Station Transceiver

TB8100 Installation and Operation ManualConnection55 © Tait Electronics Ltd June 2003 6Connection Once the TB8100 BSS hardware is installed, you need to connect the individual modules to each other, and to any ancillary equipment required in your system. This chapter provides information on all the inputs and outputs available on the TB8100 BSS. 6.1Overview of Inputs and Outputs This section identifies the main input and output connections for the TB8100 BSS. Figure 6.1 below identifies the connections at the front of a dual base station, and Figure 6.3 on page 57 identifies those at the rear. Figure 6.2 on page 56 identifies the connections at the front of a single 100 W base station. Figure 6.4 on page 57 identifies the connections on the control panel. Refer to the following sections in this chapter for more details on these connections. Figure 6.1Dual 5 or 50W Base Station Inputs and Outputs - Front View b 28VDC high current output for PA f 28VDC high current input cable from PMU c 28VDC low current output for reciter g RF output to PA d system control bus h 28VDC low current input from PMU e RF input from reciter i DC output (for optional reciter fan only) bcdeghfgh ddidiefd PA 1PA 2reciter 2PMU reciter 1 56ConnectionTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 Figure 6.2Single 100W Base Station Inputs and Outputs - Front View b 28VDC high current output for PA f system control bus c 28 VDC low current output for reciter g DC output (for optional reciter fan only) d RF output to PA h 28VDC high current input cable from PMU e 28VDC low current input from PMU i RF input from reciter bcde hfgfi PAre ci te r PMU TB8100 Installation and Operation ManualConnection57 © Tait Electronics Ltd June 2003 Figure 6.3Dual 5 or 50W Base Station Inputs and Outputs - Rear View b system interface connector g auxiliary 12 VDC output c external reference frequency input h AC mains input d RF output i RF input e – VDC input j auxiliary 12 VDC input for system interface f + VDC input 1) subrack ground connector bcdfe higidjj PA 1PA 2reciter 1reciter 2PMU bc 1) Figure 6.4Control Panel Inputs and Outputs b DC outputs for fans mounted on front panel; also used for fan rotation detectors (if fitted) d RS-232 programming port c microphone connector b c d 58ConnectionTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 6.2Power Supply Connections AC PowerThe TB8100 PMU is designed to accept a mains input of 88 to 264VAC at 45 to 65Hz. We recommend that a standard 3-wire grounded outlet is used to supply the AC power. The socket-outlet must be installed near the equipment and must be easily accessible. This outlet should be connected to an AC power supply capable of providing a maximum of 600W. The requirements of two typical AC supplies are given in the following table. Your TB8100 BSS should come supplied with a power supply cord to connect the male IEC connector on the PMU to the local AC supply. The pins of the IEC connector on the PMU are identified at right. DC PowerThe TB8100 PMU is designed to accept a DC input of 10.3 to 15.5 VDC with negative or positive ground. There is a minimum DC start-up threshold to prevent damaging a battery which has little capacity left. You must connect the DC supply from the battery to the PMU via a fuse or DC-rated circuit breaker with a rating of 60A. The DC input leads should be of a suitable gauge to ensure less than 0.2 V drop at maximum load over the required length of lead. Terminate and insulate the DC input leads so they are protected from accidentally shorting to the subrack if the PMU is removed before the leads are disconnected. Nominal SupplyCurrent Requirement Circuit Breaker/Fuse Rating 115VAC8A10A 230VAC4A6A phase neutral ground rear view Figure 6.5Recommended DC Power Connection Battery PMU Circuit Breaker or Fuse TB8100 Installation and Operation ManualConnection59 © Tait Electronics Ltd June 2003 Reciter Auxiliary DC Input The system interface PCB in the reciter has an auxiliary DC input connector. DC from the auxiliary DC output on the PMU (see “PMU Auxiliary DC Output” below) can be supplied to the +AUX_V pin on the system interface connector via this input. The pin allocations for the auxiliary DC input on the system interface PCB are given in the following table. Note that pins 1 & 3 and pins 2 & 4 on this connector are linked. Refer to “System Connections” on page 60 for the pin allocations for + AUX_V on each system interface PCB. The DC output from the PMU is 12VDC. Although this power output is isolated, the negative side of the supply is grounded on the system interface PCB to give a +V output. PMU Auxiliary DC Output The PMU can provide an auxiliary DC output when it is fitted with the optional 40 W auxiliary power supply PCB. This power supply is current limited to 3A and is available on the auxiliary DC output connector on the rear panel. DC from this output can be supplied to the +AUX_V pin on the system interface connector on the reciter via the auxiliary DC input connector on the system interface PCB (see “Reciter Auxiliary DC Input” above). The pin allocations for the auxiliary DC output on the PMU are given in the following table. Note that pins 1 to 4 and pins 5 to 8 on this connector are linked. PinDescriptionLinks 1+V input 2ground 3+V input 4ground 1 2 3 4 rear view PinDescriptionLinks 1+ V output 2+ V output 3+ V output 4+ V output 5ground 6ground 7ground 8ground 1 5 26 37 48 rear view 60ConnectionTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 6.3RF Connections The RF input to the TB8100 BSS is via the lower BNC connector on the rear panel of the reciter. The RF output is via the N-type connector on the rear panel of the PA (refer to Figure 6.3 on page 57). We recommend that you use dual-screened coaxial cable such as RG223 for the BNC connections, and RG214 for the N-type connections. 6.4System Connections The reciter can be fitted with an optional system in…

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TB8100 Installation and Operation ManualInstallation31 © Tait Electronics Ltd June 2003 4Installation This chapter describes how to install the TB8100 BSS in a standard 19 inch rack or cabinet. It also provides some general information on safety precautions and site requirements. We recommend that you read the entire chapter before beginning the installation. 4.1Personal Safety Lethal Voltages Warning!!The PMU contains voltages that may be lethal. Refer to the ratings label on the rear of the module. The TB8100 BSS must be installed so that the rear of the PMU is located in a service access area. Disconnect the mains IEC connector and wait for five minutes for the internal voltages to self-discharge before dismantling. The AC power on/off switch does not isolate the PMU from the mains. It breaks only the phase circuit, not the neutral. The PMU should be serviced only by qualified technicians. All servicing should be carried out only when the PMU is powered through a mains isolating transformer of sufficient rating. We strongly recommend that the mains power to the whole of the repair and test area is supplied via an earth leakage circuit breaker. Explosive Environments Warning!!Do not operate TB8100 BSS equipment near electrical blasting caps or in an explosive atmos- phere. Operating the equipment in these envi- ronments is a definite safety hazard. Proximity to RF Transmissions Do not operate the transmitter when someone is standing within 90 cm (3ft) of the antenna. Do not operate the transmitter unless you have checked that all RF connectors are secure. 32InstallationTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 High Temperatures Take care when handling a PMU or PA which has been operating recently. Under extreme operating conditions (+ 60° C [+140° F] ambient air temperature) the external surfaces of the PMU and PA can reach temperatures of up to + 80°C (+176°F). 4.2Equipment Safety ESD Precautions ImportantThis equipment contains devices which are susceptible to damage from static charges. You must handle these devices carefully and according to the procedures described in the manufacturers’ data books. We recommend you purchase an antistatic bench kit from a reputable manufacturer and install and test it according to the manufacturer’s instructions. Figure 4.1 shows a typical antistatic bench set-up. You can obtain further information on antistatic precautions and the dangers of electrostatic discharge (ESD) from standards such as ESD S4.1-1997 (revised) or BS EN 100015-4 1994. Aerial Load The TB8100 BSS equipment has been designed to operate safely under a wide range of aerial loading conditions. However, we strongly recommend that the transmitter should always be operated with a suitable load to prevent damage to the transmitter output power stage. Figure 4.1Typical Antistatic Bench Set-up to building ground or mains ground via 1 M ohm series resistor conductive wrist strap dissipative rubber bench mat TB8100 Installation and Operation ManualInstallation33 © Tait Electronics Ltd June 2003 Equipment Grounding To ensure safe operation the TB8100 BSS equipment must be correctly grounded as described in these installation instructions. Installation and Servicing Personnel The TB8100 BSS should be installed and serviced only by qualified personnel. 4.3Regulatory Information Distress Frequencies The 406 to 406.1MHz frequency range is reserved worldwide for use by Distress Beacons. Do not program transmitters to operate in this frequency range. FCC Compliance This device complies with part 15 of the FCC Rules. Operation is subject to the condition that this device does not cause harmful interference. Unauthorised Modifications Any modifications you make to this equipment which are not authorised by Tait Electronics Ltd may invalidate your compliance authority’s approval to operate the equipment. 4.4Environmental Conditions Operating Temperature Range The operating temperature range of the TB8100 BSS is – 30°C to +60°C (–22°F to + 140°F) ambient temperature. Ambient temperature is defined as the temperature of the air at the intake to the cooling fans. Humidity The humidity should not exceed 95% relative humidity through the specified operating temperature range. 34InstallationTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 Dust and Dirt For uncontrolled environments, the level of airborne particulates must not exceed 100 μg/m 3 . 4.5Grounding and Lightning Protection Electrical Ground The TB8100 BSS modules are grounded by physical contact between the module case and the subrack. To ensure a good ground connection you must tighten each module retaining clamp securely (refer to “Final Reassembly” on page 53 for the correct torque setting). A threaded grounding connector is provided on the rear of the subrack for connection to the site ground point (refer to “Connection” on page 55 for more details). Lightning Ground It is extremely important for the security of the site and its equipment that you take adequate precautions against lightning strike. While it is outside the scope of this manual to provide comprehensive information on this subject, the following guidelines apply:
install a suitable lightning rod at the top of the tower and connect it to a secure ground point with appropriate conductors and connectors
position site buildings and equipment within the cone of protection provided by the grounded tower
protect all cables entering the site to prevent lightning energy from entering site buildings. 4.6Recommended Tools It is beyond the scope of this manual to list every tool that an installation technician should carry. However, the following tools are specifically required for installing the TB8100 BSS:
Pozidriv PZ3 screwdriver for the M6 screws used to secure the subrack to the rack or cabinet, and also for the DC input terminals on the PMU
Pozidriv PZ2 screwdriver for the M4 screws used to secure the module retaining cla…

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TB8100 Installation and Operation ManualOperating Controls25 © Tait Electronics Ltd June 2003 3Operating Controls The TB8100 BSS has a number of hardware controls which are available to the user. These controls are located on the control panel, reciter and PMU. This chapter identifies and describes these controls. 3.1Control Panel The operating controls on the control panel allow some manual control of one or two base stations in a TB8100 BSS. These controls and their associated LED indicators are identified in Figure 3.1 below, and their functions are explained in the paragraphs which follow. Refer to “Connection” on page 55 for information on the connectors located on the control panel. Figure 3.1Operating Controls on the Control Panel b speaker volume f power LED c speaker button and LED g carrier button and transmit LED d receive LED h alarm LED e speaker i microphone channel button and LEDs controls for base station 1 (reciter 1) or single base station c d f g h i h g e d c b controls for base station 2 (reciter 2) 26Operating ControlsTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 Speaker Volume Controls the volume of the speaker mounted behind the control panel. Rotate clockwise to increase the volume, and anticlockwise to decrease the volume. Speaker Button and LED The speaker button cycles the base station audio through three states. At power-on the speaker is off and the receiver audio is gated (muted). Pressing the button once turns the speaker on, but leaves the audio gated. Pressing the button a second time leaves the speaker on and ungates the audio (monitor mode). Pressing the button for a third time returns to the start of the sequence, with the speaker off and audio gated. The green speaker LED is lit when the speaker is turned on. Receive LEDThe green receive LED is lit when a valid signal is received on its associated base station. SpeakerThe control panel is fitted with a 0.5W speaker. Audio from either or both base stations can be connected to this speaker. Power LEDThe green power LED is lit when the PMU is turned on and supplying power to the TB8100 BSS. Carrier Button and Transmit LED The carrier button is a momentary press switch. When held down, it keys the transmitter while disabling the 600Ω balanced and unbalanced line, and microphone audio. The transmitted signal is unmodulated, i.e. carrier only. The red transmit LED is lit while its associated transmitter is transmitting. Alarm LEDThe red alarm LED will flash at a rate of 2 to 5 Hz when an alarm has been generated by any of the TB8100 BSS modules. It will continue to flash until the alarm is cancelled or the fault is fixed. Note that only those alarms which are enabled using the Service Kit (Configure > Alarms > Alarm Control) will cause this LED to flash. Refer to the Service Kit documentation for more information. power on speaker off, audio gated speaker on, audio gated speaker on, audio ungated press press press TB8100 Installation and Operation ManualOperating Controls27 © Tait Electronics Ltd June 2003 Microphone Channel Button and LEDs The microphone channel button selects which base station (BS) the microphone is connected to. At power-on both base stations are selected. Pressing the button once will connect the microphone audio to base station 1. Pressing the button a second time will connect the audio to base station 2. Pressing the button for a third time returns to the start of the sequence, with the microphone audio connected to both base stations. The green LED is lit when the microphone audio is connected to its associated base station. 3.2Reciter The only controls on the reciter are the rotary hex switch mounted on the front panel, and the indicator LEDs visible through a slot in the front panel. Hex SwitchThis switch is used to assign an identity number to each base station in the BSS. For example, the reciters in a dual base station system would be numbered “1” and “2”. The reciter with the lowest hex number becomes the “control” reciter. In a single base station system, the hex switch on the reciter is set to “1”. power on BS1 selected BS1 LED on BS2 selected BS2 LED on BS1 and BS2 selected BS1 and BS2 LEDs on press press press Figure 3.2Operating Controls on the Reciter b indicator LEDs c hex switch c b 28Operating ControlsTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 Indicator LEDs These LEDs provide the following information about the state of the reciter:
steady green - the reciter is powered up
flashing red - one or more alarms have been generated; you can use the Service Kit software to find out more details about the alarms. 3.3PA The only controls on the PA are the indicator LEDs visible through a slot in the front panel. Indicator LEDsThese LEDs provide the following information about the state of the PA:
steady green - the PA is powered up
flashing green - the PA has no application firmware loaded; you can use the Service Kit software to download the firmware
flashing red - one or more alarms have been generated; you can use the Service Kit software to find out more details about the alarms. 3.4PMU The only controls on the PMU are the on/off switches on the rear panel for the AC and DC modules, and the indicator LEDs visible through a slot in the front panel. Figure 3.3Operating Controls on the PA b indicator LEDs b 5/50 W PA 100 W PA TB8100 Installation and Operation ManualOperating Controls29 © Tait Electronics Ltd June 2003 AC Module On/Off Switch This switch turns the AC input to the PMU on and off. Note that this switch breaks only the phase circuit, not the neutral. DC Module On/Off Switch This switch turns the DC output from the PMU on and off. It is recessed to prevent the DC module being accidentally switched off, thus disabling the battery back-up supply. Note that this switch disables only the control circuitry - the DC input is still connected to the power circuitry. Warning!!These switches do not totally is…

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TB8100 Installation and Operation ManualDescription9 © Tait Electronics Ltd June 2003 1Description The TB8100 is a software-controlled base station system (BSS) which is designed for operation on most standard frequency ranges 1 . It makes extensive use of digital and DSP technology. Many operating parameters such as channel spacing, audio bandwidth, signalling, etc. are controlled by software. It is also capable of generating alarms for remote monitoring. The TB8100 BSS comprises a number of separate modules. Each module is inserted into the TB8100 4U subrack from the front and is secured at the front with a metal clamp. Both clamp and module are easily removed for rapid module replacement. The modules are secured laterally with plastic guides which clip into the top and bottom of the subrack. These guides can be easily repositioned to change the configuration of a subrack. The heavier modules are also secured laterally by metal tabs at the rear of the subrack. All modules are interconnected at the front of the subrack. The only connections at the rear of the subrack are: ■RF input from and output to the antenna ■external frequency reference input ■AC and/or DC power supply input ■auxiliary 40W 13.8VDC output (optional) ■system inputs and outputs (via the optional system interface PCB fitted to the reciter). The TB8100 BSS features rugged construction with generous heatsinks and fan-forced cooling for continuous operation from –30°C to + 60°C (–22°F to + 140°F). Several different configurations are possible. The most common are: ■one 5 or 50 W base station plus accessory modules or extra receivers ■two 5 or 50 W base stations ■one 100 W base station plus accessory modules or extra receivers. 1. Consult your nearest Tait Dealer or Customer Service Organisation for information on the most suitable equipment for your area and application. 10DescriptionTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 1.1The TB8100 BSS Modules The modules which make up the TB8100 BSS are described briefly below. You can find more detailed information on these modules in the other chapters in this manual, and also in the service manual. ReciterThe receiver, exciter and digital control circuitry is located in the reciter module. It also incorporates an optional system interface PCB which provides standard system inputs and outputs. Power AmplifierThe power amplifier (PA) amplifies the RF output from the reciter and is available in 5, 50 and 100 W models. The 5 and 50W models mount vertically in the subrack, while the 100W model mounts horizontally as it has a wider heatsink. The 100W PA is also fitted with an airflow duct. Power Management Unit The power management unit (PMU) provides the 28VDC power supply for the modules in the TB8100 BSS. A 13.8VDC auxiliary output is also available when the optional 40W power supply is fitted. The input voltage can be AC, DC or both AC and DC, depending on the model. 5/50 W PA100 W PA AC and DC PMU shown TB8100 Installation and Operation ManualDescription11 © Tait Electronics Ltd June 2003 Front Panel The TB8100 front panel is mounted onto the subrack with two quick- release fasteners. It incorporates the cooling fans for the PA and PMU. Control PanelThe TB8100 control panel is mounted onto the subrack and is accessible through an opening in the front panel. It provides the user with hardware controls and connections for direct control of the BSS. SubrackThe TB8100 4U subrack is made of passivated steel and is designed to fit into a standard 19 inch rack or cabinet. Calibration Test UnitThe TB8100 calibration test unit (CTU) provides a selection of inputs and outputs which allows the TB8100 BSS to be connected to standard test equipment, and also to a PC running the Service Kit or Calibration Kit software. 12DescriptionTB8100 Installation and Operation Manual © Tait Electronics Ltd June 2003 1.2Mechanical Assembly The main mechanical components of the TB8100 BSS are shown in the following illustrations. The front panel can be easily removed from the subrack by undoing two quick-release fasteners. Once the front panel is removed, the control panel can also be removed from the subrack by undoing a single screw. Refer to “Replacing Modules” on page 43 for more details. NoteFigure 1.1 above shows the cooling fans and their ducts detached from the front panel only for the clarity of the illustration. The cooling fans and ducts are normally screwed to the rear of the front panel. Figure 1.1 above also shows the configuration for a typical single 5 or 50W base station. The PMU occupies the slot at the left end of the subrack, with the PA directly beside it. The single reciter normally occupies the second slot from the right of the subrack. Figure 1.1Mechanical Assembly - Front Panel, Fans and Control Panel b front panel i airflow separator c PMU fan j cable retaining clip d PA fan 1) subrack e PMU fan duct 1! reciter f PA fan duct 1@ plastic guide rail g PMU 1# module retaining clamp h PA 1$ control panel b c d e f g h i j 1) 1! 1@ 1# 1$ single5 or 50 W base station shown TB8100 Installation and Operation ManualDescription13 © Tait Electronics Ltd June 2003 The single PA is mounted vertically with the heatsink facing the centre of the subrack. This positions the cooling fins directly behind the PA fan. The airflow separator is fitted directly beside the PA to help direct the cooling airflow through the heatsink. Figure 1.2 above shows the configuration for a typical dual 5 or 50W base station. The PMU occupies its normal slot at the left end of the subrack, with the reciters in the two right-hand slots. The two PAs are mounted vertically in the middle of the subrack with the heatsinks facing each other. This positions the cooling fins directly behind the PA fan. The airflow separator between the PAs helps to direct the cooling airflow evenly through each heatsink. Figure 1.2Mechanical Assembly - Dual 5 or 50W Base Station b PMU f reciter for base station …

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TB8100 base station Specifications Manual MBA-00001-05 October 2004 2TB8100 Specifications Manual © Tait Electronics Limited October 2004 Tait Contact Information Tait Radio Communicationshttp:// www.taitworld.com Corporate Head Office New Zealand Tait Electronics Ltd P.O. Box 1645 Christchurch New Zealand E-mail: [email protected] We b s i t e : http://www.taitworld.com Technical Support: E-mail: [email protected] We b s i t e : http://support.taitworld.com Tait North America Regional Head Office - United States of America Tait North America Inc. E-mail: [email protected] Canada Tait North America Inc. E-mail: [email protected] Latin America Tait Latin America E-mail: [email protected] Tait Europe Regional Head Office - United Kingdom Ta i t E u ro p e L t d E-mail: [email protected] Tait North Asia Regional Head Office - Hong Kong Tait Mobile Radio (Hong Kong) Ltd E-mail: [email protected] Beijing Tait Mobile Radio (Hong Kong) Ltd E-mail: [email protected] Tait South Asia Regional Head Office - Singapore Tait Electronics (Far East) Pte Ltd E-mail: [email protected] Thailand Tait Mobile Radio Ltd E-mail: [email protected] Oceania New Zealand Tait Communications Ltd E-mail: [email protected] Australia Tait Electronics (Aust) Pty Ltd E-mail: [email protected] Note: For the addresses and phone numbers of the above regional offices refer to the TaitWorld website. TB8100 Specifications Manual3 © Tait Electronics Limited October 2004 Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Scope of Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Enquiries and Comments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Updates of Manual and Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Copyright . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Disclaimer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Associated Documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Publication Record . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 1 System Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.1 AC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Transmit Power and Current Consumption - 240VAC Input . . . . . . . . . . . . . 8 Transmit Power and Current Consumption - 110VAC Input . . . . . . . . . . . . . 8 Transmit Power and Current Consumption - AC Input Voltage Extremes . . . . 9 1.2 12.5VDC Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Transmit Power and Current Consumption - 12.5VDC Input . . . . . . . . . . . . . 9 Transmit Power and Current Consumption - DC Input Voltage Extremes . . . 10 Receive Power and Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 10 1.3 24VDC Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Transmit Power and Current Consumption - 24 VDC Input . . . . . . . . . . . . . 11 Transmit Power and Current Consumption - DC Input Voltage Extremes . . . 12 Receive Power and Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 12 1.4 48VDC Input. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Transmit Power and Current Consumption - 48 VDC Input . . . . . . . . . . . . . 13 Transmit Power and Current Consumption - DC Input Voltage Extremes . . . 14 Receive Power and Current Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . 14 1.5 Miscellaneous . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Dimensions and Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 Isolation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 2 Reciter Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Receiver RF Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 Receiver Audio Section - General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Receiver Audio Section - CTCSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 Receiver Audio Section - Gating Operation . . . . . . . . . . . . . . . . . . . . . . . . . 25 Exciter RF Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 Exciter Audio Section - Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 Exciter Audio Section - Modulation Characteristics . . . . . . . . . . . . . . . . . . . . 27 Exciter Audio Section - CTCSS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 External Reference Input . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 Compliance Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 4TB8100 Specifications Manual © Tait Electronics Limited October 2004 3 Power Amplifier and Transmitter Specifications . . . . . . . . . . . . . . . . . . . . . 31 General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 Power Amplifier RF Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . …

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