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When the BCL feature is enabled, you are prevented from transmitting on a channel that 

is already in use. Press the PTT on a channel that is already in use, the radio will sound 

alert tone and turn back to the receive mode. 

Carrier: If BCL is set on the current channel, press the PTT while the channel is already in 

use, the radio will sound beeps. 

CTCSS/CDCSS: If CTCSS/CDCSS and BCL are set on the current channel, press the 

PTT while the channel is already in use, the radio will sound beeps without 

transmission.  

Optional Signaling: If 2-Tone/MDC1200

 

signaling and BCL are set on the current channel, 

press the PTT while the channel is already in use, the radio will sound beeps 

without transmission.

 

Battery Save 

When enabled, the Battery Save feature is automatically activated once the situation that 

no activity on the channel and no operation performed, lasts for 12 seconds. 

Pressing any key or receiving a signal will restore the radio to normal operation and exit 

from Battery Save. 

S

2

 Double Saving 

TM

 Mode   

When S

2

 Double Saving Mode is enabled, and the radio transmit power will automatic 

change. The battery will have a more long operation time.   

Low Battery Alert 

When enabled, and when the battery level run low. the red LED flashes and the radio 

emits three beeps at every 30 seconds, to alert the user to recharge the battery.   

Scrambler 

This feature means that your conversation is secrecy.   

If Scrambler is set on the current channel, only the radio setted Scrambler active can 

receive you, the radio not setted only get a noise voice.     

Compander 

Companding is a feature that allows further improvement of voice quality. It compresses 

your voice at transmission, and expands it when receiving while simultaneously reducing 

extraneous noise. However, to enjoy this benefit, all transmitting and receiving radios 

Summary of Contents for QP-750

Page 1: ...7120710000 QP 750 USER MANUAL Quantun Electronics LLC ...

Page 2: ... environment Before operating this radio please read this manual carefully to be acquainted with its operation and features a Caution Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment This device complies with part 15 of the FCC Rules Operation is subject to the condition that this device does not cause ...

Page 3: ... Compliance Precautions Care and Cleaning Supplied Accessories Radio Overview Parts of the Radio Table below explains the functions of the LEDs and beeps Programmable Auxiliary Functions Signaling features Getting Started Battery Information Antenna Accessory Installation Basic Operations Advanced Operations Intrinsically programmable Operations Service ...

Page 4: ...nly while it is transmitting during talking not when it is receiving listening or in standby mode Note The approved batteries supplied with this radio are rated for a 5 5 90 duty cycle 5 talk 5 listen 90 standby even though this radio complies with the FCC occupational RF exposure limits at duty cycles of up to 50 talk Your Quantun two way radio complies with the following of RF energy exposure st...

Page 5: ... non Quantun approved accessories may exceed FCC RF exposure guidelines z If you do not use a Quantun approved body worn accessory and are not using the radio in the intended use position in front of the face then ensure the antenna and the radio are kept one inch 2 5 cm from the body when transmitting Antennas Batteries z Use only Quantun approved supplied antenna or Quantun approved replacement ...

Page 6: ...he receiving antenna z Increase the separation between the equipment and receiver z Connect the equipment into an outlet on a circuit different from that to which the receiver is connected z Consult the dealer or an experienced radio TV technician for help Industry Canada Compliance This Class B digital apparatus complies with Canadian ICES 003 Cet appareil numerique de la classe B est conforme à ...

Page 7: ...remove dirt or grease to avoid poor contact due to excessive dust z Clean the radio using a lint free cloth moistened with clean water and a mild dishwashing liquid z Avoid subjecting the radio to corrosives solvents or spirits Supplied Accessories Please carefully take the transceiver out of the box We recommend that you confirm the items listed in the following table are enclosed before discardi...

Page 8: ...rts of the Radio 1 2 3 6 5 4 7 8 10 9 11 12 15 14 13 16 Figure 1 1 PTT Key 2 SFK1 programmable Side Key 1 3 SFK2 programmable Side Key 2 4 Antenna 5 Microphone 6 Speaker 7 TFK programmable Top Key 8 Channel Selector Knob ...

Page 9: ...Receiving LED glows green when carrier presents Scanning Green LED flashes once every 1 second Encoding DTMF PTT ID 2 Tone MDC1200 1 LED glows red while transmitting 2 LED glows orange when transmission ends Decoding 2 Tone MDC1200 Orange LED flashes after the signaling is successfully decoded Function Key Press One beep to enable two beeps to disable Select Power Level 1W One beep is heard 2W Two...

Page 10: ...heck z Channel Annunciation Enable z Channel Annunciation Temporary Enable z Channel Lock z Emergency ANI Emergency Alert z Emergency Cancel z Lone Work z Lone Work backup z Man Down optional z Man Down backup optional z Monitor z Monitor Momentary z Nuisance Channel Delete z Nuisance Channel Temporary Delete z Power Level H M L z Power Level Indicator z Rental Time Indicator z Scan z Scan backup ...

Page 11: ...aling z Selective call Decode z Call Alert Decode z Radio check Decode z Selective Radio Inhibit Decode z Selective Radio Inhibit Cancel Decode z PTT ID Decode z PTT ID Encode z Selective Call Encode 2 2Tone Signaling z Call alert Encode z Call alert Decode z Selective Call Encode z Selective Call Decode 3 DTMF Signaling z DTMF PTT ID Encode z 16 call Encode ...

Page 12: ... the battery not fully charged 3 When charging a battery attached to a radio turn the radio off to ensure a full charge 4 Do not cut off the power supply or remove the battery when charging a battery 5 If the operation time will not increase even though the battery is properly charged this means the battery life cycle is over please replace with a new one 6 Do not return fully charged batteries to...

Page 13: ...re for the battery storage Please store it in cool dry area under room temperature to reduce self discharge capacity Charging the Battery When the radio top LED flashes red and three beeps sound every 30 seconds indicating the battery power runs low please recharge the battery You are recommended to use Quantun authorized charger Charger LED will indicate the charging status Fig 2 Charger LED Stat...

Page 14: ...ny days or forest locations may narrow your communication range please repare in advance to avoid potential inconvenience Accessory Installation Battery Attaching the battery Fig 3 1 Align the battery to the battery rail on the back of the radio approximately 12mm from the top of the radio 2 Press the battery firmly to the radio and slide the battery upward until the latch snaps into place Removin...

Page 15: ...y latch disengaged slide the battery down from the top of the radio about 12mm Once the battery is free from the battery rails lift it directly away from the radio Antenna Insert the threaded end of the antenna into the connector on top of the radio Rotate the antenna clockwise to fasten it Rotate the antenna counterclockwise to remove it See figure 5 ...

Page 16: ...h the T slot on the battery cover and press the belt clip downwards until it is locked Fig 6 Removing the belt clip Press the disassembly release outwards with a key until it releases and then push the belt clip upwards with your thumb to remove it See figure 7 Attach Remove ...

Page 17: ...ng the Earpiece Microphone Open not remove the accessory cover plug the audio accessory firmly into the accessory jack Note Using the radio with audio accessory may affect the waterproof performance of the radio Fig 8 ...

Page 18: ...e contact your dealer for more details Rotate the Channel Selector knob to select the wanted channel Transmit 1 Turn on the radio 2 Rotate the Channel Selector knob to select the wanted channel 3 Make sure there is no activity on the channel 4 Press the PTT button and speak into the microphone with your mouth 1 2 inches away from the radio The LED glows red during transmission 5 Release the PTT bu...

Page 19: ...the VOX feature when you speak through an accessory that is connected to your radio z Connecting a VOX Headset 1 Turn off your radio 2 connect the VOX accessory to your radio and turn the radio on z Enabling or Disabling VOX To enable or disable VOX operation press the preprogrammed VOX button see advanced operations Note Pressing the PTT button disables VOX ...

Page 20: ...Indicator key the radio sounds 1 2 3 or 4 to indicate the current battery level Audible Indicator Battery Level 1 Very Low 2 Low 3 Satisfactory 4 High CallⅠ CallⅡ Press the programmed CallⅠ CallⅡkey to transmit the stored DTMF code 2 Tone MDC1200 signaling Safety check DTMF If DTMF signaling is set on the current channel press the programmed CallⅠ CallⅡ key to transmit DTMF code Red LED solidly gl...

Page 21: ...n re turn on radio the current channel number will not be heard If one beep is heard the Channel Annunciation will be enabled Upon re turn on radio the current channel number will be heard Please select the volume level as 1 when using an earpiece Channel Annunciation Temporary Enable Press the programmed Channel Annunciation Control key may activate the following two situations a If the current c...

Page 22: ...st a response from a user at regular intervals Should a user not press any key as response to a regular warning tone then a defined emergency procedure is activated The Lone Work status will not be memorized once radio power off Lone Work backup The feature provides added security and safety for individuals who work remotely from their team Press the programmed function key to activate the Lone Wo...

Page 23: ...s and hold the Squelch Off Momentary key to open noise squelch Release it to close Power Level H M L Power Level Indicator Short press the Power Level key to change the power level the power increases by 1 level upon every press of the function key low med high cycle You change is saved Upon long press the programmed Output Power Check key the radio reports the output power level set on the curren...

Page 24: ...eleted channel will not turn back to the scan list one radio exits from the scan mode or power off and on The priority channel can be deleted temporarily only If there s only one or two channels in the scan list one of them cannot be deleted Scan backup Press the programmed Scan key to initiate radio scanning from the current channel and ascends through the channel numbers in scan list The green L...

Page 25: ...ain to exit from the feature Pressing the PTT button will disable VOX VOX will be reactivated after switching the power off and then back on VOX Backup Press the programmed function key to activate the VOX Backup feature Press the key again to exit from the feature The status will be memorized after radio power off and on Whisper Press the programmed function key to activate the Whisper feature Wh...

Page 26: ...ed OR Radio unmute upon either the CTCSS CDCSS or 2 Tone MDC1200 condition is matched PTT ID Your dealer may configure whether to transmit Connect ID BOT ID or Disconnect ID EOT ID when connecting or disconnecting a repeater or telephone system If the BOT ID is selected press the PTT to transmit BOT ID If the EOT ID is selected release the PTT to transmit EOT ID If Both is selected transmit both B...

Page 27: ... activity on the channel and no operation performed lasts for 12 seconds Pressing any key or receiving a signal will restore the radio to normal operation and exit from Battery Save S2 Double Saving TM Mode When S2 Double Saving Mode is enabled and the radio transmit power will automatic change The battery will have a more long operation time Low Battery Alert When enabled and when the battery lev...

Page 28: ...ation is desired your radio can be activated by voice alone using the VOX feature when you speak through an accessory that is connected to your radio Enabling or Disabling VOX operation press the preprogrammed VOX button Note Pressing the PTT button disables VOX ...

Page 29: ...tun dealer If you find it inconvenient to have service performed by your local dealer you may contact Quantun below Quantun Electronics LLC 1379 Shotgun Road Sunrise Florida 33326 USA Main line 954 598 3500 Toll Free USA 888 361 0521 www quantun com ...

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