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PROGRAMMABLE OPTIONS

A number of programmable options can be set in the base station's personality. These are listed in Table

7. The following paragraphs provide further explanation regarding display blanking, warning beeps, key

beeps, and hold on scan.

Display Blanking

Display blanking is applicable only to Normal and Priority modes; not Scan mode.

When display blanking is enabled, the radio's normal frequency display is replaced by a flashing bar if

the radio is not keyed during the display blanking time period.

Example,

Display blanking is enabled

Display blanking time is 60 seconds

Selected channel frequency is 121.500 MHz.

In this example, the display normally shows 121.500. If the transmitter is not keyed for

60 seconds, the display changes to a flashing bar.

Normal frequency display is reinstated when the radio is keyed, or when the VOL

or VOL

button is pressed. Note that the display can be reinstated by pressing any other button, but

doing so may also alter radio settings.

Warning Beeps

When enabled, the following conditions cause a warning beep to be heard when an attempt is made to

key the transmitter:

q

The radio has a fault that prevents transmissions.

q

Trying to key the radio on a channel frequency that has the ‘Transmit Inhibit’ option set to ‘Always

Inhibit’.

q

Trying to key the radio on a busy channel that has the ‘Inhibit if Busy’ option selected.

q

Imminent transmitter time out.

The volume of warning beeps is set in the personality (a value between 1 and 7); the front panel volume

control does not affect the beeps.

Key Beeps

This option, when enabled, produces a single beep whenever a button is pressed on the radio's front

panel. The volume of the beep is the same as the Warning beep.

T6M Base Station User Guide

Page 39

Summary of Contents for T6M

Page 1: ...T6M Base Station User Guide Handbook Part Number 31 360T6MBS...

Page 2: ...sue Number one Date of Issue September 2000 Published by Park Air Electronics Northfields Market Deeping Peterborough England Telephone From UK 01778 345434 From outside UK 44 1778 345434 Fax From UK...

Page 3: ...odification Record Modifications to the T6M base station authorized by PAE are recorded in the following table Modification Number Embodied by Date Brief Details T6M Base Station User Guide Page 3 Cha...

Page 4: ...with an optional internal battery It is a sealed lead acid type with a thixotropic electrolyte The battery has self sealing safety vents that may release small quantities of gas under extreme conditi...

Page 5: ...ore operating the equipment TRADEMARKS The following trademarks are used in this user guide IBM Is a registered trademark of International Business Machines Microsoft Is a registered trademark of Micr...

Page 6: ...ry 11 Rack Mount Option 11 Local Monitoring of Transmitted Audio 11 Chapter 2 Specification 13 General 13 Dimensions and Weight 14 Input Supplies 14 ac Supply 14 dc Supply 14 Optional Internal Battery...

Page 7: ...nsmitting and Receiving 24 Programmable Options 25 Display Blanking 25 Warning Beeps 25 Key Beeps 25 Transmit Inhibit 26 Maximum Transmit Time 26 Front Panel Display for 25 kHz and 8 33 kHz Channel Sp...

Page 8: ...lity 45 Loading a Personality into the Radio 45 Reading a Personality from the Radio 45 Printing a Personality Report 46 Chapter 6 Spares 47 Introduction 47 List of Spares 47 Chapter 7 Maintenance 49...

Page 9: ...station provides two way communication within the VHF aeronautical frequency band 118 to 136 9916 MHz The radio provides a nominal 10 watt amplitude modulated AM output and operates on both 25 kHz and...

Page 10: ...ly are connected the base station operates from the ac input the dc input acts as a backup in case the mains fails PROGRAMMING THE BASE STATION S PERSONALITY The base station s personality is programm...

Page 11: ...n the installation chapter Rack Mount Option The base station is normally supplied in a free standing desktop polymer enclosure As an option the base station s chassis can be fitted in a metal enclosu...

Page 12: ...Intentionally Blank T6M Base Station User Guide Page 12...

Page 13: ...be allocated to a priority list Channel selection can then be limited to those frequencies in the priority list In Scan mode the radio can have up to 15 scan groups each containing up to 15 channel fr...

Page 14: ...he mains fail ac Supply The base station requires the following ac input supply Input voltage Between 98 and 254 V ac at either 50 or 60 Hz Maximum current 2 A dc Supply The base station requires the...

Page 15: ...80 dB Audio power output 2 W into 8 ohm integral speaker 10 THD Distortion 10 THD for 90 modulation depth RF input impedance 50 ohms TRANSMIT CIRCUIT The specification of the transmit circuit is liste...

Page 16: ...Intentionally Blank T6M Base Station User Guide Page 16...

Page 17: ...When a busy channel is found and depending on the programmed options the radio remains tuned to that channel ready for use Scanning can be resumed at any time The following topics are covered in this...

Page 18: ...itted continues to charge Microphone Diagnostics Connector Figure 3 Item 5 A 7 pin DIN socket used to connect the fist microphone normally supplied with the base station This connector will also accep...

Page 19: ...t functions for different operating modes In Normal mode the channel buttons are used to select the required channel frequency In Scan mode these buttons are used to resume scanning after a busy chann...

Page 20: ...tion removes power only from the radio module power to other modules is removed when the rear panel Supply switch is set to standby Warning Neither the Power button nor the rear panel Power switch iso...

Page 21: ...microphone s PTT button Check that the base station s Tx indicator lights and then speak clearly into the microphone Reception is heard through the base station s internal loudspeaker The volume is a...

Page 22: ...FF 5 Check that after a few seconds the display changes to show the currently selected channel frequency The squelch facility is now off To Adjust the Squelch Level To adjust the squelch facility 1 Pr...

Page 23: ...equired channel frequency press the SEL or SEL button to scroll up or down through the priority channel frequencies that are programmed into the base station Release the button when the required frequ...

Page 24: ...up to 15 channel frequencies Squelch is automatically switched on when scan mode is selected Display blanking does not operate in scan mode Selecting Scan Mode To select Scan mode press the SCN butto...

Page 25: ...the radio is keyed or when the VOL or VOL button is pressed Note that the display can be reinstated by pressing any other button but doing so may also alter other settings Warning Beeps When programme...

Page 26: ...mit has been set and warning sounds have been set the radio produces warning beeps 10 seconds before the transmission time expires FRONT PANEL DISPLAY FOR 25 kHz AND 8 33 kHz CHANNEL SPACING When sele...

Page 27: ...18 1750 MHz 118 1833 MHz 118 1916 MHz 25 kHz 8 33 kHz 8 33 kHz 8 33 kHz 25 kHz 8 33 kHz 8 33 kHz 8 33 kHz 25 kHz 8 33 kHz 8 33 kHz 8 33 kHz 25 kHz 8 33 kHz 8 33 kHz 8 33 kHz 25 kHz 8 33 kHz 8 33 kHz 8...

Page 28: ...ay occur if the transmitter s duty cycle has been exceeded or when transmitting for long periods The fault should clear if the radio is not keyed and allowed to cool F8 High reflected power Indicates...

Page 29: ...ore RCUs to the base station if required q Connecting an antenna q Connecting the base station chassis to earth q Connecting the microphone or a microphone headset q Connecting external facilities if...

Page 30: ...e module is fitted during the life of the base station The two links are q Interface module JP1 This link determines whether received audio or transmitted and received audio is monitored through the i...

Page 31: ...diation The antenna used with this radio equipment must be installed such that the resultant radiated field strength is below 10 W m in areas normally accessible to personnel A suitable antenna must b...

Page 32: ...er Signal Input or Output Signal Level 1 Microphone ground Input 0 V 2 RS232 Tx Output RS232 3 Microphone PTT Input 0 V PTT 4 RS232 Rx Input RS232 5 Sidetone and receiver audio monitor Output Maximum...

Page 33: ...t signal q An audio operated squelch signal The external facilities are connected to the base station s rear panel Facilities connector This connector is detailed in Table 6 A 15 way D type plug Table...

Page 34: ...indication 5 6 7 8 9 10 Control Desk Rx Control Desk Rx Control Desk Tx Control Desk Tx Control Desk PTT Control Desk PTT Output Input Input A 6 wire system comprising two 600 W twisted pair balanced...

Page 35: ...a backup to the mains ac input The DC Input connector fitted to the rear panel see following illustration is used for this supply Connection should be made using a free XLR socket for example PAE part...

Page 36: ...and the supply output connector The ac supply cable should be colour coded in accordance with the electrical appliance colour code regulations for the UK That is Line Brown Neutral Blue Earth Green a...

Page 37: ...ny time using the programming kit 70 T6MPMKIT available from PAE The kit contains CD ROM based software and a programming lead A laptop computer or PC must be available to compile the personality The...

Page 38: ...seconds Squelch must be open for this time before a channel is considered to be busy Offset channels On or off On When set to on the radio scans for the strongest frequency within a 25 kHz channel Al...

Page 39: ...al frequency display is reinstated when the radio is keyed or when the VOL or VOL button is pressed Note that the display can be reinstated by pressing any other button but doing so may also alter rad...

Page 40: ...lect the CD ROM drive and run the programme called Setup exe 3 Follow the on screen instructions The programming files are stored in the directory C Program Files PAE unless a different directory is s...

Page 41: ...he box is empty Notes If the Use Channel Strings facility is selected the maximum number of channel frequencies that can be stored is reduced from 760 to 400 Descriptive text is shown on the frequency...

Page 42: ...can mode is selected if not checked pause in scan mode is selected 10 Busy On Time This is the time a radio must be busy when scan mode is selected before the radio holds or is paused Enter a value be...

Page 43: ...quency This facility determines when the radio can transmit Three options are allowed q Never Key in N This means the inhibit function is never enabled The transmitter can be keyed at any time includi...

Page 44: ...are entered and it is required to amend the entry for example adding it to the priority list a quick method of displaying the frequency is by clicking on the Find channel box This displays the Find f...

Page 45: ...splayed The progress of the programming operation is displayed on the status line at the bottom of the programming screen When programming is complete switch off the radio and laptop remove the progra...

Page 46: ...f it is not valid the nature of the error will be displayed 3 A textual representation of the personality is displayed using the Windows Notepad programme When Notepad displays the personality it can...

Page 47: ...should always be quoted T6M base station complete BT6MBS Radio module 25F00000T6M Interface module 68 T6MBS635 Switched mode power supply unit 69F07150135S Reservoir capacitor 33000 m F 63 V 14 06339...

Page 48: ...Intentionally Blank T6M Base Station User Guide Page 48...

Page 49: ...acement on page 52 Test Equipment Required The test equipment necessary to complete the scheduled maintenance is listed in Table 8 Table 8 List of test equipment Item Description 1 Through line wattme...

Page 50: ...er 2 Reconnect the power and ensure the base station s rear panel Power switch is set to on 3 To enter Test mode switch on the base station by pressing and keeping pressed the front panel Power button...

Page 51: ...MHz 9 To save the new power setting in the base station s memory press and keep pressed the front panel Power button Without releasing the Power button press and release the PRI button then the SCN bu...

Page 52: ...reading approximately mid scale is shown in the AF wattmeter Note the reading in dB 7 Set the signal generator s modulation to off 8 Increase the sensitivity of the AF wattmeter until a reading is ob...

Page 53: ...pment Lethal voltages are still present in the base station s internal power supply To ensure safe working during maintenance the ac and dc input supplies must be disconnected from the base station Th...

Page 54: ...fault code displayed Complete the Transmit Power and Frequency Accuracy Test detailed on page 50 If the test fails check for any obvious problems such as a faulty PTT switch Note also that the signal...

Page 55: ...Switch off the base station and switch on again after a few minutes If the fault persists replace the power supply module with a serviceable spare Fault code F16 may be displayed when operating using...

Page 56: ...Intentionally Blank T6M Base Station User Guide Page 56...

Page 57: ...anel controls 4 External connection diagram 5 Enclosure securing detail 6 Base station block diagram 7 Base station interconnection diagram 8 Base station layout diagram 9 Radio module and PSU removal...

Page 58: ...Intentionally Blank T6M Base Station User Guide Page 58...

Page 59: ...BT6MBS 01 Front and Rear Layout Figure 1...

Page 60: ...BT6MBS 13 Rack Mounted Version Figure 2...

Page 61: ...GA10642 Iss 1 Key to Front Panel Controls Figure 3 For description of controls see text in chapter 3...

Page 62: ...BT6MBS 11 External Connection Diagram Figure 4...

Page 63: ...BT6MBS 10 Enclosure Securing Detail Figure 5...

Page 64: ...Base Station Block Diagram Figure 6 GA10547 Iss 3...

Page 65: ...Base Station Interconnection Diagram Figure 7 GA10548 Iss 3...

Page 66: ...Base Station Layout Diagram Figure 8 GA10719 Iss 1...

Page 67: ...Radio Module and PSU Removal Figure 9 GA10721 Iss 1 radio and GA10731 Iss 1 PSU Radio Module Power Supply Unit PSU...

Page 68: ...Interface PCB and Reservoir Capacitor Removal Figure 10 GA10732 Iss 1 and GA10720 Iss 1 Interface PCB Reservoir Capacitor...

Page 69: ...Interface PCB Layout Diagram Figure 11 GA10751 Iss 1...

Page 70: ...BT6MBS 12 1 Cable Termination at the N Type Connector Figure 12...

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