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Using Your Radio

Turning It On

Press and hold WX/POWER for at least two seconds to turn the radio on. 

Press and hold WX/POWER again to turn the unit off.

Setting It Up

Even though you can change your radio’s settings at anytime, you will 

probably want to establish initial settings after you have turned it on for the 

fi rst time. You will adjust some of these settings on an as-needed basis, but 

some settings might only need to be set once.

Changing the Volume

To change the speaker volume, press VOL/TX PWR to enter Volume Setting 

mode. 0 (for volume level 0 - 15) displays. Press CHANNEL UP or CHANNEL 

DOWN to increase or decrease the volume levels. Press VOL/TX PWR to 

save.

Setting the Squelch level

The MHS115 recognizes signals as transmissions if they exceed a signal 

strength threshold.

Adjusting the squelch sets this threshold level. Increasing squelch requires 

a signal to be stronger to be seen as a transmission. If you set the squelch 

too high, you will risk not receiving transmissions that are lower than that 

threshold. Reducing the squelch allows weaker signals to be accepted.

However, if you lower the squelch too much, you will hear white noise all the 

time.

While listening to a channel, press SQL/UIC to enter Squelch Setting mode.

The SQUELCH Level (S0) number displays on the LCD. Press CHANNEL UP 

or CHANNEL DOWN to increase or decrease the squelch levels (0 - 3). Press 

SQL/UIC to save the setting.

Weak signals

No 

Squelch

Medium 

Squelch

High 

Squelch

Strong signals

Noise

18

Handheld VHF Marine Transceiver

UNIDEN MHS115

Summary of Contents for MHS115

Page 1: ...MHS115 Handheld VHF Marine Transceiver For more exciting new products please visit our website Australia www uniden com au ...

Page 2: ...gitude from your GPS 7 State the nature of your distress e g are you sinking medical emergency man overboard on fire adrift etc 8 State the type of assistance you need medical towing pumps etc 9 Give number of persons aboard and conditions of any injured persons 10 Estimate present seaworthiness of your ship e g how immediate is the danger due to flooding or fire or proximity to shore 11 Briefly d...

Page 3: ... depth for 30 minutes Note this is not suitable for scuba diving The MHS115 will only meet this rating if fully assembled and all rubber seals are well maintained and correctly fitted and the battery cover securely fastened NOTE After your radio is submerged in water you might notice that the sound is distorted This is because there is still water remaining in and around the speaker and microphone...

Page 4: ...ch 13 Scan Mode Operation 14 Using the radio in Scan Mode 14 Scan mode with Triple Watch or Dual Watch 15 Weather Mode 15 Using the radio in Weather Mode 15 INSTANT Channel Feature 15 Setting up the Hardware 16 Installing the Battery 16 Mounting the Charger 16 Charging the Battery 17 Attaching the Belt Clip 17 Using Your Radio 18 Turning It On 18 Setting It Up 18 Changing the Volume 18 Setting the...

Page 5: ... off 21 Setting Key Lock 21 Using the Battery Save feature 21 Maintenance and Troubleshooting 22 Specifications 24 Channels and Frequencies MHz 26 US Channel Frequencies and Names 26 Canadian Channel Frequencies and Names 28 International Channel Frequencies and Names 30 Regulations and Safety Warnings 32 Warranty 33 5 Handheld VHF Marine Transceiver UNIDEN MHS115 ...

Page 6: ...d monitor them in quick succession Transmitter power level select Boost Lets you boost the transmitter power from 1W to 2 5W or 5W for added transmission distance Battery level display Dual Watch This mode lets you monitor Instant CH along with one regular marine channel Triple Watch This mode lets you monitor 16CH 67CH along with one regular marine channel Battery Save The Battery Save feature au...

Page 7: ...r use damaged products Need help Get answers at our website www uniden com au for Australian model 7 Handheld VHF Marine Transceiver UNIDEN MHS115 CHARGE Charging Cradle AC Adaptor Lithium Ion Battery DC Adaptor Belt Clip Mounting Hardware VOL TX PWR 16 67 TRI INST WX SQL UIC SCAN MEM DUAL LOCK MHS115 MHS115 Radio ...

Page 8: ...ndheld VHF Marine Transceiver UNIDEN MHS115 VOL TX PWR 16 67 TRI INST WX SQL UIC SCAN MEM DUAL LOCK MHS115 Antenna LCD VOL TX PWR INST WX POWER 16 67 TRI SQL UIC DUAL LOCK SCAN MEM Speaker Microphone Channel Up Channel Down Push To Talk BOOST ...

Page 9: ...Watch on and off DUAL LOCK Select Dual Watch function Select Key Lock function Channel Up Move up channel or squelch volume one step at a time Move quickly up the channels squelch volume steps Channel Down Move down channel or squelch volume one step at a time Move quickly down the channels squelch volume steps SCAN MEM Select Scan function Save a channel into memory or delete a channel from memor...

Page 10: ...mple screen shows some of this information The following table shows all the possible icons and what they mean 10 Handheld VHF Marine Transceiver UNIDEN MHS115 CHARGE Charging Contacts Screw holes for mounting Charge LED Triple or Dual Watch is on Battery status icon The radio is transmitting Transmit power level 1W 2 5W MID or 5W no icon UIC channel mode USA CANada or INTernational Key Lock is ac...

Page 11: ...the radio is set for US channels CANadian channels or INTernational channels TRI or DUAL TRIple Watch or DUAL Watch is turned on MEM The current channel is saved in memory SCAN The radio is in Scan mode WX The weather channels are displayed The battery is fully charged mostly charged halfcharged mostly empty or completely empty 88A Current channel number 11 Handheld VHF Marine Transceiver UNIDEN M...

Page 12: ... WX POWER In addition to the three operation modes your radio provides two different watch modes which you can activate during any operation mode In the watch modes the radio briefly checks for activity on a specific channel then returns to its previous operation Watch Mode What it does To turn it on off Dual Watch Checks Instant CH for activity every 2 seconds Press DUAL LOCK Triple Watch Checks ...

Page 13: ...ange the transmit power press and hold TX PWR button The transmit power switches to the next transmit power each time you press and hold this button If you activate Triple Watch while operating in Normal mode the radio checks channels 16 and 67 every two seconds with Dual Watch turned on the radio checks Instant channel every two seconds The radio will not check channels 16 or 67 while you are act...

Page 14: ...SCAN MEM You must have at least two channels in memory to start a scan However you cannot save marine channel 70 or Weather channels You cannot transmit while in Scan mode To save a channel into memory select the channel then press and hold SCAN MEM The MEM icon displays whenever you tune to that channel To remove a channel from memory set the radio to that channel then press and hold SCAN MEM The...

Page 15: ...ng the radio in Weather Mode Press the WX POWER button to access Weather mode WX displays Press Channel Up and Channel Down to scroll through the weather channels To cancel Weather and return to the previous marine channel press the WX POWER button again The last active weather channel displays the next time you access Weather mode 15 Handheld VHF Marine Transceiver UNIDEN MHS115 Allows you to sto...

Page 16: ...eck the rubber seal located on the under side of the cover make sure that the seal is set in the groove and that there is no foreign matter under the seal 6 Replace the battery compartment cover Tighten the screw securely Mounting the Charger 1 Use the two holes at the base of the charger as a template to mark the drill holes 2 Using a 3mm 1 8 inch drill bit drill two holes 13mm 1 2 inch deep 3 Us...

Page 17: ...e Wipe off dirt or shake water from your radio before placing in the charger if your radio gets dirty or wet Charge the battery fully before using the radio When the battery is completely charged the CHARGE LED turns green Don t use the charger when the ambient temperature is below 5 C 41 F or above 40 C 104 F If the radio is powered down the battery can charge in about seven hours If the radio is...

Page 18: ...to save Setting the Squelch level The MHS115 recognizes signals as transmissions if they exceed a signal strength threshold Adjusting the squelch sets this threshold level Increasing squelch requires a signal to be stronger to be seen as a transmission If you set the squelch too high you will risk not receiving transmissions that are lower than that threshold Reducing the squelch allows weaker sig...

Page 19: ...roll through the channels Making a Transmission Press and hold Push to Talk TX displays while you are transmitting Release Push to Talk when you re finished talking to let the other party respond To prevent stuck microphone problems or situations where Push to Talk is pushed accidentally the radio limits your talk time to 5 minutes in a single transmission For the best sound quality hold the micro...

Page 20: ...play shows the new transmission power The transmit power remains at the new setting until you change it again Some channels limit the transmission power to 1W When you tune to a limited power channel the radio automatically switches to 1W See page 26 for a list of power restricted channels Saving Channels to Memory If you find a channel you like and want to listen to it again save it to memory Pre...

Page 21: ...sing and holding DUAL LOCK If Key Lock is on only PTT Boost and power on off will operate Key Lock remains in memory when the radio is turned off 21 Handheld VHF Marine Transceiver UNIDEN MHS115 Using the Battery Save feature The Battery Save feature automatically turns off receive power at regular intervals to save battery power Battery Save turns off when receiving transmissions or transmitting ...

Page 22: ... battery The radio won t transmit Make sure you are not in Weather or Scan mode Make sure you are not trying to transmit on a receive only channel or transmit at the wrong power level for this channel see the channel lists starting on page 26 Check the battery power level if it s low charge the battery before trying to transmit Make sure the duration of each transmission is less than 5 minutes I c...

Page 23: ...will flash if the radio is in a Watch mode or in Scan mode Try turning off scanning Triple Watch or Dual Watch see page 12 Where can I find my radio s serial number The serial number is on a plate inside the battery compartment 23 Handheld VHF Marine Transceiver UNIDEN MHS115 ...

Page 24: ...ource Rechargeable Lithium Ion Battery 7 4V 1100 mAh Size without antenna 5 35 H x 2 44 W x 1 53 D inch 136 H x 62 W x 39 D mm Weight 8 46 oz 240g w battery and antenna Transmitter Frequency Range 156 05 162 550 MHz Frequency Stability 10 PPM Power Output 1 0 W 2 5W 5W Spurious Emissions 70 dBc Current Drain 1300 mA 5W nominal Receiver Type Direct Conversion Super Heterodyne Phase Locked Loop syst...

Page 25: ... 0 2 μV Audio Frequency Response 5 5 dB 500 Hz 6 5 dB 2000Hz Adjacent Channel Selectivity 75 dB 25 kHz Audio Output Power 0 7 W 10 THD Current Drain Squelched 60 mA Max Audio 430 mA 25 Handheld VHF Marine Transceiver UNIDEN MHS115 ...

Page 26: ...mplex 1W Govt maritime control 18A 156 900 156 900 Simplex Commercial 19A 156 950 156 950 Simplex Commercial 20 161 600 157 000 Duplex Port operation 20A 157 000 157 000 Simplex Port operation 21A 157 050 157 050 Simplex Coast guard only 22A 157 100 157 100 Simplex Coast guard 23A 157 150 157 150 Simplex Coast guard only 24 161 800 157 200 Duplex Marine operator 25 161 850 157 250 Duplex Marine op...

Page 27: ...ion Ship Ship 78A 156 925 156 925 Simplex Non Commercial 79A 156 975 156 975 Simplex Commercial 80A 157 025 157 025 Simplex Commercial 81A 157 075 157 075 Simplex Coast Guard 82A 157 125 157 125 Simplex Coast Guard 83A 157 175 157 175 Simplex Government 84 161 825 157 225 Duplex Marine Operator 85 161 875 157 275 Duplex Marine Operator 86 161 925 157 325 Duplex Marine Operator 87 157 375 157 375 S...

Page 28: ...00 156 800 Simplex Distress safety calling 17 156 850 156 850 Simplex 1W State Control 18A 156 900 156 900 Simplex Commercial 19A 156 950 156 950 Simplex Canadian Coast Guard 20 161 600 157 000 Duplex 1W Port Operation 21A 157 050 157 050 Simplex Canadian Coast Guard 22A 157 100 157 100 Simplex Canadian Coast Guard 23 161 750 157 150 Duplex Canadian Coast Guard 24 161 800 157 200 Duplex Marine Ope...

Page 29: ... 156 775 156 775 Simplex 1W Port Operation 76 156 825 156 825 Simplex 1W Port Operation 77 156 875 156 875 Simplex 1W Port Operation 78A 156 925 156 925 Simplex Inter Ship 79A 156 975 156 975 Simplex Inter Ship 80A 157 025 157 025 Simplex Inter Ship 81A 157 075 157 075 Simplex Canadian Coast Guard 82A 157 125 157 125 Simplex Canadian Coast Guard 83 161 775 157 175 Duplex Canadian Coast Guard 83A 1...

Page 30: ... 156 750 Simplex 1W Environmental 16 156 800 156 800 Simplex Distress safety calling 17 156 850 156 850 Simplex 1W Govt maritime control 18 161 500 156 900 Duplex Port operation 19 161 550 156 950 Duplex Commercial 20 161 600 157 000 Duplex Port operation 21 161 650 157 050 Duplex Port operation 22 161 700 157 100 Duplex Port operation 23 161 750 157 150 Duplex Marine operator 24 161 800 157 200 D...

Page 31: ...75 Simplex 1W Port operation 76 156 825 156 825 Simplex 1W Port operation 77 156 875 156 875 Simplex Port operation ship ship 78 161 525 156 925 Duplex Port operation 79 161 575 156 975 Duplex Port operation 80 161 625 157 025 Duplex Port operation 81 161 675 157 075 Duplex Port operation 82 161 725 157 125 Duplex Port operation 83 161 775 157 175 Duplex Port operation 84 161 825 157 225 Duplex Ma...

Page 32: ...manual Using another charger may damage the battery or cause the battery to explode NOTE Li Ion Polymer batteries must be recycled or disposed of properly Avoid exposing the battery whether attached to the radio or not to direct sunlight heated cars or temperatures below 4 F 20 C or above 140 F 60 C Exposing the chemical contained within the battery pack to temperatures above 140 F 60 C may cause ...

Page 33: ...e 3 years from the date of the original retail sale If a warranty claim is made this warranty will not apply if the Product is found by Uniden to be A Damaged or not maintained in a reasonable manner or as recommended in the relevant Uniden Owner s Manual B Modified altered or used as part of any conversion kits subassemblies or any configurations not sold by Uniden Aust C Improperly installed con...

Page 34: ...ngside your rights under either the COMPETITION AND CONSUMER ACT 2010 Australia or the CONSUMER GUARANTEES ACT New Zealand as the case may be none of which can be excluded Procedure for obtaining warranty service Depending on the country in which the Product was first purchased if you believe that your Product does not conform with this warranty you should deliver the Product together with satisfa...

Page 35: ...35 Handheld VHF Marine Transceiver UNIDEN MHS115 ...

Page 36: ... 2014 Uniden Australia Pty Limited Printed in Vietnam U01UT647CZZ 0 ...

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