BK Radio Aurora Series User Manual Download

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Aurora User’s Manual

AURORA SERIES

PORTABLE RADIO

User’s Manual

Summary of Contents for Aurora Series

Page 1: ...1 Aurora User s Manual AURORA SERIES PORTABLE RADIO User s Manual ...

Page 2: ...2 BK Radio ...

Page 3: ...AUTION Do NOT operate a damaged radio Aurora WELCOME 8 INTRODUCTION 9 Optional Accessories 9 External Speaker Microphone 9 External VOX Headset 9 Battery Packs 9 FCC REQUIREMENTS 10 SAFETY PRECAUTIONS 10 Features 11 Basic and Advanced Model Radios 11 Advanced Model Radios Only 11 Dealer Programmable Options 12 TABLE OF CONTENTS ...

Page 4: ...17 Keypad 17 Speaker 17 Top View 18 Status Indicator 18 On Off Volume Knob 18 Squelch Knob 18 Programmable Three Position Switch 20 Emergency Button 20 Channel Selector Knob 20 Side Views 21 PTT Switch 21 Programmable Softkey Buttons 21 Options Connector 22 Basic Operation 23 Receive 23 TRANSMIT 24 Code Guard Operation 25 Code Guard Receive 25 Code Guard Transmit 26 TABLE OF CONTENTS ...

Page 5: ...3 Selecting and Activating Frequently Called Phone List Numbers 34 Editing Frequently Called Numbers 35 DTMF Encoding 36 ANI Encoding 36 Transmit Time Out Timer 37 Talk Around 37 Man Down Switch 37 Emergency Group Channel 38 Activation 38 Enabling Disabling 39 Transmit Speed and Frequency 39 Operating Modes 40 Manual Mode 40 Tone Monitor Toggle 41 Code Guard Mode 42 Variable Guard 43 TABLE OF CONT...

Page 6: ...n Delete Add 47 Priority Scan 48 Priority Scan with Code Guard 48 Priority Modes 48 Priority Delay 50 Priority Receiving 50 Priority During Scan All Groups Scanning 50 Receive Mode 51 Groups 51 Display Modes 52 Tuning Range 52 Frequency Display Mode 53 Alpha Display Mode 54 Channel Display Mode 55 Radio Paging Code 56 Selective Calling 56 Receiving a Call 56 Sending a Call 57 Radio Check 57 DTMF D...

Page 7: ...61 Flex Mode 61 Keypad and Channel Selector Lock 61 Busy Channel Lockout 62 Battery Power 63 Battery Saver 63 Radio Power Up 65 Error Messages 65 Stun 65 Aurora Programmed Switch Settings 67 Troubleshooting Guide 69 Maintenance 70 Service 70 Specifications 71 Definitions and Acronyms 73 TABLE OF CONTENTS ...

Page 8: ...all instructions before operating this radio So much for this box over here WELCOME Even if you are reading this before operating your radio you re still not planning on reading all the instructions before you try to work with your radio are you Well just be careful because as our warranty states BK Radio isn t going to cover defects caused by Physical abuse or misuse of the radio Neglect or accid...

Page 9: ...ith 1 15 groups of up to 16 channels each with a keypad and display These Aurora radios all offer VHF frequency band units OPTIONAL ACCESSORIES External Speaker Microphone The Aurora radio has optional external speaker microphones LAA0208 and LAA 0222 When the speaker microphone is installed with the options connector the internal speaker is defeated External VOX Headset Another option for the Aur...

Page 10: ...nications Commission prior to use Your BK Radio dealer can assist you in meeting these requirements Your dealer will program each radio with your authorized frequencies signaling codes etc and will be there to meet your communications needs as your system expands SAFETY PRECAUTIONS Do not operate the transmitter in close proximity to blasting caps Do not operate the radio in an explosive atmospher...

Page 11: ...must be programmed by your dealer BASIC AND ADVANCED MODEL RADIOS Busy Channel Lockout Code Guard CTCSS CDCSS on any all channels Transmit Timeout Timer per channel group Priority Channel Operation Hi Lo Transmit Power Soft key and soft switch programming Emergencyswitch ADVANCED MODEL RADIOS ONLY Code Guard user reassignment Channel frequency or alpha user changeable display modes Priority scan M...

Page 12: ...ential decode Radio Paging ANI two tone five tone DTMF with frequently called number memory VOX Voice Operated Transmissions Internal options board activation Keyless front panel radio parameter programming Man Down requires optional factory installed tilt switch Radio stun feature ...

Page 13: ...ther hand face the backside of the radio and the inner side of the battery toward each other 2 Align the bottom tabs on the battery with the indents on the bottom of the radio and press the radio and battery together at a 45 angle 3 While keeping the bottom of the battery and radio together snap the top of the battery to the top of the radio The locking tabs will hold the battery in place Figure 1...

Page 14: ...nna clockwise until it is firmly attached To remove the antenna turn the antenna counterclockwiseuntil you can lift the antenna away from the radio Removing the Battery WARNING Explosion Hazard Do not dispose a battery pack into a fire To avoid explosion intrinsically safe radios designed for use in hazardous environments MUST use replacement batteries approved by Factory Mutual To remove the batt...

Page 15: ...15 Aurora User s Manual RADIO VIEWS Figure 3 Front and back view LED Display Battery Battery Tab Belt Clip Microphone Keypad Battery Recharge Terminals Speaker Aurora ...

Page 16: ...icchannel identifier If you switch to channel or frequency display modes the LCDdisplayseitherthechannelnumberorthechannelfrequency information In all cases the radio status indicators icons are shown Table 1 Status Icons Icon Status LowBattery Mandown Emergency VOXenabled Tonemodeactivated Hi LoTransmitPowerindication Hipower Lo power RadioPagingCode audiblecode assigned KeyboardLockedindicator T...

Page 17: ...tstheTransmit Busy LowBatteryLEDtolightup Note If Option 4 of the display backlight LED feature is programmed the multicolored status LED will not light underanycondition Keypad The Aurora radio advanced models have a keypad that contains the keys necessary to access a channel group directly generate DTMF tones and paging codes and change operating modes The keypad is backlit and controlled by the...

Page 18: ...s low BlinkingRed Steady Radiosaretransferringdataduringcloning Orange 5 Second Error Number is shown in the display of SteadyOrange advanced radios and then the radio is reset For example if the radio receive channel is busy and the battery is low the status indicator will be green with momentary red flashes every 10 seconds On Off Volume Knob Use the On Off Volume knob to turn the radio on and o...

Page 19: ...tory Default 1 Channel frequency 2 Channel label 3 Group number channel number and bandwidth On Off Volume Squelch Antenna Connector Scan Mode 3 Position Toggle Switch Channel Selector Status LED TOP VIEW Programmable Red Switch Factory Default Scan Programmable to Emergency ...

Page 20: ...n emergency switch to transmit an emergency ANI sequence when pressed The factory default for the red button however is scan mode Channel Selector Knob The Aurora radio has a channel selector knob on the top of the radio that lets you determine the channel to tune to when receiving andtransmittinginmanualmode Generalchannelparametersinclude BusyChannelLockout Scanlistassignment Hi Lotransmitpowers...

Page 21: ...was programmed for thedisplayedchannel Programmable Softkey Buttons The three softkey buttons on the side of the radio are programmed by your dealer to give you the radio features you want The default configurationforthethreesoftkeybuttonsis shown in the table below Table 4 Programmable Softkey Buttons Button Feature Top Toggles Code Guard on and off Middle Toggles priority mode on and off Bottom ...

Page 22: ...ier modulation sources Outputting data present on receive carriers Giving access to external audio including the microphone and earphone as well as the necessary control line to switch audio from internal to external sources Allowing an external PTT switch Allowing an external tone monitor line Using switched battery voltage Providing digital and RF grounds Inputting data to be transmitted Options...

Page 23: ... position Switch Position Display 1 Channel frequency 2 Channel label 3 Group number channel number and bandwidth mode 2 Select a channel Turn the channel selector knob Each time you select another channel you will hear a beep 3 Adjust squelch and volume a Turn the squelch knob clockwise until you hear noise b Adjust the volume knob until the noise level is comfortable c Then turn the squelch knob...

Page 24: ...the battery pack may need to be charged If so the display will show the low battery icon and the red low battery status indicator will flash If the transmit status indicator does not glow and you hear a boop low error tone you are on a receive only channel or the channel is busy if busy channel lockout is enabled Select an authorized transmit channel If you talk longer than the preset timer settin...

Page 25: ...e by pushing the soft function button top gray button is the factory default that was preprogrammed to toggle Code Guard on or off If your dealer reassigned the gray soft function button to a different function you can also select Code Guard by pushing o r until Monitor Mode is displayed and then push E nter to toggle tone mode Push H ome for normal display If your radio is already set to tone mod...

Page 26: ...ard channel beforetransmitting Note Do not transmit if the green busy channel status indicator is lit 3 Press the PTT switch When the transmitter is on the red transmit status indicator glows and the transmit icon appears in the display 4 To receive only the messages with the proper Code Guard value press the gray button on the side of the radio You will see the tone mode icon in the display Durin...

Page 27: ... press a key on the keypad when you are in normal or keypad programming mode When you use the channel knob to select a different channel When you press a valid key in the function menu no beep for invalid key presses When your radio reaches the low battery threshold level number 1 You will hear a single beep every 30 seconds until you turn the radio off Boops The boop is a lower tone of 780 Hz You...

Page 28: ...switch to manual mode from scanning When you switch to monitor mode from tone mode Warble The warble sound is a continuous fixed rate alternating of the beep and boop tones You hear the warble When the radio receives the notification that the page was received When the radio receives a man down warning Group pages and all call pages have the longest alternating rate The radio page has a noticeably...

Page 29: ... the your radio has the VOX option you can either toggle the VOX option ON OFF with a softkey three position switch assigned to the VOX option or on advanced model radios you can use the functionmenu If the options connector from the headset is not attached you cannot turn on VOX If the radio is in VOX mode and the options connector is removed from the radio the radio automatically turns off VOX m...

Page 30: ... 4 When the status indicator LED on the radio turns red immediately release the VOX softkey The VOX trigger sensitivity value has been reached CHANNEL SELECTOR Use the channel selector knob to determine which channel from 1 to up to 16 is tuned for receiving and transmitting when the radio is in manual mode and no priority channel operations are activated See priority channel operation page 48 and...

Page 31: ...rom the function menu if not assigned to the three position switch The Aurora radio has a set of display transmit power icons One illuminatediconindicatesthechannelwill transmit using low power and the other illuminated icon indicates the channel will transmit using high power If the radio is in manual mode these icons are always illuminated to show either high or low power for the selected channe...

Page 32: ... Press H ome to exit the function menu If the function menu is on Radio Page press H ometwiceslowlytoexit 4 Press H ome twice to quickly clear the radio page number The radio then waits for you to enter the new number Note Anyfunctionsassignedtothe three positionswitchorthethreebuttons onthesideoftheradio thatfunctionis notdisplayedinthefunctionmenu ModeSelections Press E ntertotogglethefollowing ...

Page 33: ... exit function menu Priority Channel You can only select priority channel mode when the radio is in Mode C or D Press the E nter key to make the value change to the channel knob assignment Radio Page This function displays the page type DTMF or 5 Tone and then displays the last called number if any These numbers can only call other radios Don t give your cell phone away 1 Press any key 0 9 to clea...

Page 34: ...mbers 1 To see your list of frequently called phone list numbers press E nter when the list is displayed to choose a frequently called number Press 0 9 or press or 2 Press while scrolling the frequently callednumbers list to sequentially display one of the three attributes of the current frequently called number type DTMF or 5 Tone alpha Name for frequentlycalled number number frequently called nu...

Page 35: ...e H ome Clears the number or alpha Type attribute has no effect In edit mode the down arrow key shifts the cursor to the right In edit mode the up arrow key shifts the cursor to the left Any key When you press any key more than once the radio will display the character set for that key based on the number or alpha attribute you selected Pressing the same key more than once also lets you move the c...

Page 36: ...a sidetone sounds like the tones you hear when dialing a telephone The frequently called number list can be used for storage of DTMF transmit sequences Use the frequently called number list to store your DTMF transmit sequences Note If you are still in the DTMF function menu press H ome to leave the function menu ANI ENCODING ANI encoding Automatic Number Identification if enabled transmits a sequ...

Page 37: ...When you select Talk Around your radio will transmit on the frequency of the channel you just received and use the receive Code Guard and bandwidth parameters of that channel You can activate the talk around feature from the function menu if the function was not assigned to the three position switch If talk around is enabled Code Guard and paging ANIs are both temporarily removed from the channel ...

Page 38: ...in the next 15 second transmission interval the radio will return to the designated emergency group channel Activation To activate the emergency ANI sequence transmission Press and hold the emergency button Your dealer can program the emergency activation from 0 5 to 4 0 seconds in 0 5 second intervals or Tip the radio sideways The factory installed internal man down tilt switch will activate the ...

Page 39: ...ned to the man down function or with the function menu As long as the man down switch is factory installed even if your dealer didn t program the emergency button to be used for the emergency feature the man down emergencyfeatureremainsavailable Transmit Speed and Frequency The emergency feature when activated transmits the radio s emergency ANI up to five times at 15 second intervals until the ra...

Page 40: ...hree position switch For advanced radios in tone mode your radio displays the receive and transmit frequencies that indicate the reassigned Code Guard You can see the number of the reassigned channel in the right most part of the radio display Receive and transmit frequencies also indicate the assigned radio paging code audible signals by lighting the paging icon in the display when the radio is t...

Page 41: ...er or 6 Lock or unlock the keypad Press and hold the key for 1 second If priority channel operation is activated in manual mode the radio will monitor not only the selected manual channel but also the group priority channel at the priority sampling rate Tone Monitor Toggle From the function menu you can toggle tone mode and monitor mode 1 Tone mode Listening to channels only if the correct Code Gu...

Page 42: ...or decoding any of the currently used 50 CTCSS tone guard signals as well as any custom tone from 67 0 Hz to 254 1 Hz within 1 tolerance or any of the 104 CDCSS Code Guard signals The radio is capable of encoding one tone code and decoding a different tone code on the same channel Code Guard is active only when the radio is in tone mode While the radio is in tone mode and the receive channels are ...

Page 43: ...he receive and transmit channel frequencies or to just the transmit frequency SCAN OPERATION Scan mode applies to a single channel group for a maximum of 16 channels in a scan list You can switch from manual to scan mode from the function menu if manual scan or talk around is not already assigned to the three position switch Scan All Groups Advanced Aurora radios also offer a scan all groups optio...

Page 44: ... mode Change the Scan List Your dealer can program your radio to give you the option of changing the scan listchannelsyourself Scanning Options Advanced Aurora radio models offer several scanning options Scan Delay The Aurora radio has a scan delay time parameter from 0 to 5 seconds in 0 5 second increments Your dealer can program this time parameter on a per radio basis The scan delay time starts...

Page 45: ...u stay on the same channel 2 You keep the radio in scan mode 3 You press the PTT switch while you are receiving the channel or during the scan delayperiod You can activate talk around with a computer assignedsoftkey three position switch or from the function menu if talk around is not assigned to the three position switch If talkback scan is assigned to the three position switch the manual scan fe...

Page 46: ...ds it back to the scan list Channelswithradiopagingcodesassignedto the receive frequency of the channel cannot be part of a group s scan list Scan in Monitor Mode If you are listening to a signal on a scanned channel the radio will stay on that channel as long as your radio keeps receiving the signal It does not matter if the channel has a Code Guard or a radio paging code assigned to it unless bu...

Page 47: ...channel to the scan list If the channel is already in the scan list pressing E nter will delete it from the scan list and if the channel is not on the scan list pressing E nter will add the channel to the scanlist When the radio is on a channel in manual mode or scan mode on an active channel and you have deleted the channel from the scanlist thedisplaywillindicatethatthis channel is not on the sc...

Page 48: ...riority channel the radio receiver locks on to the priority channel for the duration of the signal You will only hear the message if the proper Code Guard value is received The radio resumes scanning after the message ends and the scan delay time expires PRIORITY MODES The Aurora radio has five priority channel modes of operation as shown in Table 6 Your dealer can program these modes by group whi...

Page 49: ...r flash orange whichindicatesanactualprioritychannel sampling For advanced model radios the priority channel of a group is indicated by a P a small p when deleted from the scan list on the left side of the radio display Priority Channel deleted from scan list P000 0000 Priority Channel P000 0000 Orange Status Indicator Table 6 Priority Modes ...

Page 50: ...samples either the programmed preset priority channel modes B or C the priority channel that you selected modes D or E or the position of the channel knob mode A See Table 6 Priority During Scan All Groups Scanning The priority channel that is sampled and all prioritymodetransmittingoccurswithinthe group the radio was in when Scan All Groups scanningwasinitiated Table6summarizeschannelselection wh...

Page 51: ...gthesethreesteps 1 Put the radio into receive mode by not transmitting 2 Press the H ome key while in receive mode The display will show Group XX where XX is the current channel group Note If the radio is scanning when you enter group change mode the radio will be temporarily disabled until you exit group changemode 3 Once the radio is in group change mode the only active front keypad keys are Cha...

Page 52: ...isplay functions or with the function menu If you use a softkey each key you press selects the next display mode The radio will keep cycling through the channel frequency and alpha modes If you use the three position switch factory default Position 1 is channel frequency Position 2 is channel label Position 3 is group number channel number and bandwidth mode TUNING RANGE The tuning range of Aurora...

Page 53: ...uencyin megahertz P00000000 characterpositions2 9 PG01 CH01 group channel VariableCodeGuardreassignment ZZ displaycharacterpositions13 14 ZZ reassignedCodeGuardchannel 1 16 For example a radio is in group 8 and tuned to channel 12 at a frequency of 139 6500 MHz Channel 12 is the priority channel for group 8 and currently in the scan list You reassign the Code Guard of channel 12 to the Code Guard ...

Page 54: ...aracter position2 11 YYYYYYYYYY group channel alphanumeric up to 10 characters VariableGuardreassignment ZZ display character position 13 14 ZZ reassigned Code Guard channel between 1 and 16 For example the display to the left shows a radio in group 8 and tuned to channel 12 whose channel label is Office Channel 12 is not the priority channel of the group and has been deleted from the scan list Yo...

Page 55: ...nnelNumber CHYY displaycharacterposition6 9 YY channel number 1 through 16 ChannelSpacing n narrowband w wideband VariableGuardreassignment ZZ display character position 13 14 ZZ reassigned Code Guard channel between 1 and 16 For example the display to the left shows group 8 is tuned to channel 12 which happens to be the group s priority channel which is currently deleted from the scan list The Co...

Page 56: ...ging Your dealer can program the tone frequencies to cover Motorola 1 1 Reach Two Tone and GE Type 99 formats The dealer can also program tone duration and intervals down to a zero interval The radio has the capability to decode RELM All Call on either Tone A or Tone B The 2 tone page causes an audible warbling notification ANI Decoding Receive ANI DTMF or 5 Tone The Aurora radio can have up to fi...

Page 57: ... program your radio for either leading PTT trailing PTT or both edges of PTT when you transmit a call These PTT options are programmed per channel for an internal time out cycle The ANI is not transmitted during the time out period You can encode subaudible and audible selectivecallsignalssimultaneously but the radio can only decode either subaudible or audible selective calling signals on the rec...

Page 58: ...ansmitted is programmed for transmit ANI then the unit ID goes out as specified by the transmit ANI protocol DTMF or 5 Tone If the transmit channel is not programmed for transmit ANI the unit ID is sent out using the default paging parameter that was programmed by your dealer DTMF DIALING Advanced Aurora radios can generate DTMF dialing sequences To send DTMF tones refer back to DTMF Encoding page...

Page 59: ...ently Called Numbers and Call Paging The Aurora radio can permanently store a list of 10 frequently called numbers FCNs Each number can have up to 10 digits The FCN list can be for DTMF or 5 Tone dialing or paging code sequences You can also assign alpha labels up to 10 characters each to each FCN list number from the keypad In addition your radio also has separate memory to permanently store a se...

Page 60: ... sent as normal The radio uses either the DTMF or 5 Tone ANI assigned to the channel The call page FCN goes out after the leading ANI and before the trailing ANI Independent of whether DTMF or 5 tone was assigned to the Transmit ANI channel the call page FCN goes out using the DTMF or 5 Tone ANI you specified when defining the call page or FCN Note Call pages FCNs using DTMF digits and might yield...

Page 61: ...lluminated thetransmit frequency has a paging code assigned This code will go out on the leading edge trailing edge or both edges of the PTT press FLEXMODE The Aurora radio has two IF sections and operates on either 12 5 kHz narrow bandwidth or 30 kHz wide bandwidth for the VHF model radio The operating bandwidth of the channel is a dealer programmable option that you can select on a per channel b...

Page 62: ...smit until a correct decode Code Guard is received If the BCL transmit criteria is not met you will hear a boop When this happens release PTT and try transmittingagain If the BCL feature is set for a channel and that channel has a Code Guard assigned to it the carrier must have a tone If a carrier is detected on that channel and no tone is present then the radio will remain muted no tone is the wr...

Page 63: ...he channel is not busy The Aurora radio has three low battery thresholds to let your radio run as long as possible before shutting down Low Battery First Battery Threshold The Aurora radio has a first battery threshold level which causes the radio to transmit all channels using low power regardless of the transmit power setting for that channel You will see the low battery display icon once the ba...

Page 64: ...ery threshold is reached the status LED will flash and the radio will not transmit until the battery is removed and reinstalled at a level above threshold two Third Battery Threshold The Aurora radio has a third battery threshold level When the third threshold is reached the radio suspends all functions and in advanced models Low Battery is displayed Low battery threshold three indicates the radio...

Page 65: ...e radio the radio hardware is tested to make sure the synthesizer locks at the extremes of the radio s tuning range ERROR MESSAGES If the status indicator glows orange your radio has made an error Advanced model radios will also display Error with a number The radio will then try to return to normal operation You can clear the error by changing the channel knob position during the 5 seconds the st...

Page 66: ...e mode When the stun feature is active and the current group s stun code is received the radio transmits the unit ID of that channel This mutes the radio audio and disables any further transmitting While a radio is stunned if it receives the current group s stun code again the radio will cancel the stun mode restrictions and return to normal radio operation ...

Page 67: ...riority Switch C _____________ Hi Low Power 3 Position Toggle Switch 1 ______________ ChannelFrequency 2 ______________ ChannelLabel 3 ______________ Group Channel BW Emergency Switch Setting ________________ Scan A B C Group Number ______ Group Label __________________ Receive Transmit Chan Frequency CG Frequency CG Label Band 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...

Page 68: ...68 BK Radio PROGRAMMED SETTINGS FOR YOUR RADIO Group Number ______ Group Label __________________ Receive Transmit Chan Frequency CG Frequency CG Label Band 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ...

Page 69: ...a location closer to a station Does not scan Turn the squelch control fully clockwise andthencounterclockwiseuntilScan appearsinthedisplay Check to see if channels are locked out Keypad buttons don t work Disable the keypad lock See page 41 Radio doesn t operate very Charge batteries to full capacity for longer long service life See page 63 TROUBLESHOOTING GUIDE NOTE Please perform the simple chec...

Page 70: ...r output carrier frequency or modulation MUST be performed by a qualified BK Radio electronics technician Have the radio checked periodically by a qualified BK Radio electronics technician Service Customer Service Department BK Radio 7505 Technology Drive West Melbourne FL 32904 1 800 648 0947 Fax 1 321 953 7986 e mail www bkservice relm com NOTE For in warranty service information contact your lo...

Page 71: ... 5 Weight with battery and antenna 22 7 oz 0 64 kg Power Requirements Battery Voltage 10V 9 6V Current Drain Standby w Battery Saver 22 mA Standby w o Battery Saver 56 mA Rated Audio 500 mW Transmit 1 Watt 0 8 Amp 5 Watts 1 8 Amp Antenna Impedance 50 Ohms Speaker Impedance 32 Ohms Frequency Stability 3 ppm Operating Temperature 30 C to 60 C 22 F to 140 F Subject to change without notice SPECIFICAT...

Page 72: ...dB Spurious including Image 80 dB 75 dB Intermodulation 75 dB 70 dB Hum and Noise Ratio 45 dB 45 dB Audio Output 5 dist 500 mW 500 mW Transmitter RF Output Power 5 1 W 5 1 W Spurious Harmonics 70 dBc 70 dBc Modulation 16K0F3E 11K0F3E 16K0F9W 11K0F9W FM Hum and Noise 46 dB 40 dB Audio Distortion 3 3 Audio Response per TIA 1 3 dB 1 3 dB SPECIFICATIONS Cont ...

Page 73: ...d to as tone code Detent The click hesitation you feel as you turn a knob from one position to another DTMF Dual Tone Multiple Frequency DTMF Tones Tones that sound like those used by a standard push buttontelephone E nter Enter FCN Function H ome Home LCD Liquid Crystal Display LED Light Emitting Diode PRG Program PTT Push To Talk RTA Repeater Talk Around RX Receive SCN Scan Squelch A control tha...

Page 74: ...74 BK Radio NOTES ...

Page 75: ...75 Aurora User s Manual ...

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