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LHR-20 / LHR-22 Unit, Manual, and Accessories Information


Frequently Asked Questions

What is the range?There is not set range. The range is effected greatly by the installation. VHF radios operate by line of sight. The higher the antenna is installed, the greater the range.
Why can't I get weather?The unit may be in an international mode and not searching for available US weather information. Press the H/L and WX buttons simultaneously to cycle between these two modes.
What does USCG CFR-46 standard mean?This is a standard testing method used to define waterproof. The product must withstands 65 gallons (US) of water per minute sprayed through a 1" nozzle from 3.048m (10') for at least 5 min.
What channel do I use?This depends greatly on what you want to say and who you want to speak with. This is explained in the manual some. A brief description is also supplied here.
What is an MMSI number?
Why do I need an MMSI number?
Where do I get an MMSI number?
MMSI stands for Maritime Mobile Service Identity. This is like a phone number. You must enter this number of the other party you wish to make a DSC call to. Other parties must also know your MMSI number before the can make a DSC call to you. To register for a unique MMSI number, select this link
What if I make a mistake entering my MMSI number? Please see your local dealer for assistance.
What is the difference between Simplex and Duplex? The channel in use for communication may be either. If the channel is a Simplex channel, the channel uses only one frequency for transmitting and receiving signals. This makes communication similar to a CB where only one party can talk at a time. Duplex channels actually operate on two different frequencies allow for the radio to transmit and receive at the same time. This is similar to your telephone.
Why does the radio cut me off after 5 minutes of transmitting? After 5 minutes of constant transmission, the LVR-250 will end transmitting. This is required by the FCC. Simply end a transmission before this time and start your transmission again.
Will my radio work with an NMEA 2000 network?No, it operates on NMEA 0183 (RS-232).
Can I use this radio in Canada?<Yes!  However, go to this site to learn about the certification required.
What is the FCC ID #? EP78TQ LHR22 (LHR20)

Product Information

 Display Size 0.8" X 1.4" (20 X 35 mm)
 Pixel Count/ Resolution Does Not Apply - Custom Digits + icons
 Display Type Film SuperTwist 2-level gray scale
 Backlighting Screen (Amber LED) Keys (Green LED)
 Input Voltage 7.4V DC - 1600 mAh Li-Ion
 Power Consumption / Current Draw 6A at 25W/1.5A at 1W
 Battery Monitor Yes - level indicator with LHR-20/22
 Battery Life >10 hr (5W 5%, 5%, 90% ratio); >13 hr (1W 5%, 5%, 90% ratio)
 Casing/Waterproof Standards Sealed and waterproof JIS 7
 Compass safe distance 0.45m
 Dimensions 5.35" X 2.28" X 1.20" (136 X 58 X 30.5 mm)
 Antenna Connector SO-239; SMB - LHR-20/22
 Recommended Coaxial Cable  RG58 for less than 25ft length; RG-8/U for lengths greater than 25ft.
 Hailer with Intercom Talkback / External Speaker No
 Min Antenna Gain 3dB
 Call Logs No
 Navigation with Waypoints and MOB No
 FM Stereo Radio No
 Hand Microphone Features NA
 Audio Output Power 250mW internal speaker
 Transmit Power 5W/1W portable + indicators
 Transmitter Protection Open/Short circuit of antenna.
 Modulation Distortion <4% at 1kHz with ±3Khz deviation
 Frequency Control PLL with ±10ppm stability
 Maximum Fequency Deviation ±5Khz
 Residual Noise Level More than -40 dB unsquelched.
 Adjacent CH Selectivity More than 65dB.
 Spurious Response More than 65dB.
 Intermodulation Rejection Ratio More than 65dB.
 12db Sinad Sensitivity .25uV
 Channels All USA, International, Canada, 10 NOAA Weather, ATIS
 Local/Distance No
 3 Favorite Channel Select/Scan Memory CH select / Priority scan.
 All Scan/Dual watch/Tri watch/Memory Scan Yes
 Number of Weather Channels 10 NOAA
 NOAA Tone Wx Alert Yes
 Weather Channel Scan Yes
 S.A.M.E. Weather Alert No
 Memory Back Up Yes
 Directory / MMSI Entry (country specific) No
 Languages English
 Fuse size 7 amp
 Speaker Front Panel Mount and in Microphone. External speaker connection wires
 Temperature Range -4 to 122 °F  (-20 to 50°C)
 Weight 0.62 lbs (0.28 kg) with battery
 Manufactured 2008-2010
 Current Software Version N/A

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