Standard Horizon HX290E, Руководство пользователя

Страница: 6 / 40

HX290E
Page 6
3. ABOUT THIS RADIO
3.1 ABOUT THE VHF MARINE BAND
The radio frequencies used in the VHF marine band lie between 156 and 158
MHz. The marine VHF band provides communications over distances that are
essentially “Line of sight” Actual transmission range depends much more on
antenna type, gain and height than on the power output of the transmitter. On
a fixed mount 25 W radio transmission expected distances can be greater
than 24 km, for a portable 5 W radio transmission the expected distance can
be greater than 8 km in “Line of sight”.
The use of Marine VHF radio is governed by regulation and local laws. Use by
unauthorized persons is not permitted and is subject to fines and confiscation
if convicted. This is especially true when the radio is used on land in a non
marine environment where because of location or propagation anomalies es-
pecially during the summer, the transmission may cause interference with a
search and rescue operation or contribute to a marine collision between pass-
ing ships. For VHF marine channel assignments refer to Page 33 Section 10.
3.2 ABOUT WATER RESISTANCE
Water resistance of the transceiver is ensured only when the battery pack is
attached to the transceiver and
MIC/SP
cap is installed in the
MIC/SP
jack.
3.3 DISTRESS AND HAILLING
(
CHANNEL 16
)
Channel 16 is known as the Distress and Calling Channel. An emergency may
be defined as a threat to life or property. In such instances, be sure the trans-
ceiver is on and set to “Channel 16”. Then use the following procedure:
1. Press the
PTT
(Push-To-Talk:
) switch and say “
Mayday
,
Mayday
,
May-
day
. This is _____, _____, _____” (your vessel’s name).
2. Then repeat once: “
Mayday
, _____” (your vessel’s name).
3. Now report your position in latitude/longitude, or by giving a true or mag-
netic bearing (state which) to a well-known landmark such as a navigation
aid or geographic feature such as an island or harbour entry.
4. Explain the nature of your distress (sinking, collision, aground, fire, heart
attack, life-threatening injury, etc.).
5. State the kind of assistance your desire (pumps, medical aid, etc.).
6. Report the number of persons aboard and condition of any injured.
7. Estimate the present seaworthiness and condition of your vessel.
8. Give your vessel’s description: length, design (power or sail), color and other
distinguishing marks. The total transmission should not exceed 1 minute.
9. End the message by saying “
OVER
”. Release the
PTT
(
) switch and
listen.