Popping regular, synchronized with engine speed - ignition system Popping
button batteries but not synchronized with engine revs - fuel depth gauge
bass Speaker Howling pitch varying with engine - generator Whistling varied with
Audio speaker engine revs - alternator Sizzling crackling - voltage regulator Pulsed
A76 battery tone regular and monotonous - digital read-out from adjacent equipment
9v batteries Prop shaft similar to alternator These units should be professionally installed
4gb usb and adjusted. Poor performance is usually the result of shipboard-generated
24V battery interference or aerial location. The ground wiring should be heavy
23a battery and well connected. Loran C and radio ground leads should
1w laser be kept separate. Improved performance can often be obtained by
12v batteries moving the aerial away from metal structures, horizontal wires and
Wireless earbud headphones other aerials. Position the aerial temporarily. and check the signal,
USB high speed both with other equipment turned off and with each item
tv wireless headphones of equipment turned on before making a permanent installation.
AIS Radar.
top iphone cases The microwave energy emitted by a radar scanner at close
the battery store range can be dangerous. Avoid looking directly at the scanner
Sound canceling headphones while the radar is switched on, and do not come
silver iphone cover within 39 inches (1m) of a small yacht scanner, or
rechargeable led flashlight 8 feet (2 1/2m) of a larger commercial unit, while
rechargeable batteries aa they are working. If the scanner is enclosed in a radome,
pen drive usb make sure it is switched off before venturing close. The installation
mp3 speakers portable and care of an AIS radar system should be left
mp3 player online to the manufacturer or his agents. Do not tamper with
mp3 player 8gb the installation and seek advice from professional marine electronic service
more iphone case professionals before siting any other electronic equipment near the AIS
laser pointer green radar. Faults Faults can be inherent in multi-function electronic systems through
iphone 4g cover poor installation or subsequent alteration to power lines aboard. They
iphone 4 protection can also develop because of poor maintenance. Blind spots These occur
iphone 4 casing when the scanner is situated close to an obstruction.
Often
In ear headphone this will be only a small, perhaps I° loss, and
high quality headphones the motion of the boat will eliminate the blind spot.
headphones for kids If the blind spot persists move the scanner or the
Hand crank flashlight obstruction. False echoes These reveal themselves by a double echo on
gel cell batteries the display. Usually the ranges of the two echoes are
flash drive usb similar, the false echo generally the more transient of the
disk on key two. The false echo occurs when a transmission is deflected
cute iphone cases by rigging or part of the superstructure, and returns from
cool iphone accessories the target by the same route. Fitting deflector plates which
compare mp3 players will absorb or scatter the signal will remedy this problem. Loss
Cheapest mp3 player of performance Loss of power, brilliance or range is often
cheap electronics online caused by a faulty or overheating power unit. Power units
aaa battery charger should be situated in a cool place where heat can
9v rechargeable battery readily be dissipated. Cable runs should be kept to a
24v battery charger minimum to prevent voltage loss.
Poor definition When the scanner becomes
23a 12v battery dirty and encrusted with salt, loss of definition results. Switch
usb speakers for laptop off and clean it. This might be an obvious fault, or
usb flash drive 16gb show itself in continual variance between compass bearings and bearings taken from the radar.