Unscrew the plug on top of radio and plug in the charger there.
The symbol in the
top right of the screen indicates charging: Three bars fully charged; two bars partly
charged. One bar means radio needs charging. Charging will take several hours. FL
is displayed when charging complete.
Don’t charge the battery after every use: this
is bad for the health of the battery.
Tie the radio into the boat. Don’t keep it hung around your neck: it might you that
Screw in the aerial.
Switch the radio on with the button on the bottom right.
There are two sets of channels. We use the International set indicated by the I in
a box on the left of the screen. If this is not displayed, do a long press the CH
The Hi/Low button controls the strength of the transmitted signal. If transmitting
to another Longboat nearby, use low power. If transmitting over longer distances
use Hi power.
Low is displayed at the top left of the screen. Press Hi/Low button
to change to Hi power: no message is displayed for Hi power.
To adjust the volume, press the Vol/Sql button and then use the up and down buttons.
Sql means Squelch. This is how sensitive the radio is to incoming signals. You want
the radio to be as sensitive as possible to pick up weak signals but not so sensitive
as to pick up background noise. Press the Vol/Sql button twice and then use the up
and down button to make Sql as low as possible without the background noise.
The up and down buttons cycle through the available channels. Ch 37 is used by safety
boats at Beaumaris, the RAYC line staff and yachts, the BRC shore party and Longboats.
is the public emergency channel to call for assistance.
Press the button on the side of the radio to transmit. TX will be displayed at the
top left of the screen.
Be concise and brief.There may be other radio users waiting
to use the channel. Hold the radio a few inches from your mouth and speak normally.
Give the names three times when calling up. End each transmission with Over. End
the whole dialogue with Out
Example: “Shore party, shore party, shore party. This is
Mabli, Mabli, Mabli. Over”
“Mabli. This is shore party. Receiving you. Over”
Party. Mabli will be returning to the slipway in five minutes Over.”
Will meet you on the slipway. Out”
Do a radio check as or before you leave the slipway.
“Shore party, shore party, shore
party. This is Mabli, Mabli, Mabli. Over”
“Mabli. This is shore party. Receiving you
“Shore Party. This is a radio check. Thank you. Out”
To switch to Ch 16, press the 16 - C button. Ships and coastguard monitor this channel.
call for assistance, press button to transmit and say, for example:
Mayday. This is rowing boat Menai, rowing boat Menai, rowing boat Menai. We are at
the North East end of Puffin Island. The boat has filled with water. There are five
rowers in the sea holding on to the boat. We require immediate assistance. The boat
is coloured white. Over.”
The channel buttons can be pressed accidentally. To lock the radio on to a channel
such as 37, give the key button a long press and the key symbol is displayed in the
top right of the screen. Give the key button another long press to unlock all the
channel change buttons.
16 C button: A quick press switches to Channel 16. A long press switches to your
To programme the key to your favourite channel: press key for three
seconds. Channel number then flashes. Use up and down buttons to select your favourite
channel such as 37. Press 16 C button again and the key is then programmed to channel
37 as well as channel 16.
Our vhf’s are Icom-M23’s. There is more information in the radio manual.
Learn the phonetic alphabet in case communication is difficult and you need to make
a word, such as a boat name, clear.
The 26 code words in the NATO phonetic alphabet are assigned to the 26 letters of
the English alphabet in alphabetical order as follows: Alfa, Bravo, Charlie, Delta,
Echo, Foxtrot, Golf, Hotel, India, Juliett, Kilo, Lima, Mike, November, Oscar, Papa,
Quebec, Romeo, Sierra, Tango, Uniform, Victor, Whiskey, X-ray, Yankee, Zulu