Eton E1 User Manual download pdf (Page 32)

TROUBLESHOOTING

E1 MANUAL

AC Input - Alternating Current power source available

at wall outlet sockets.

AM - Signals in which the information is conveyed by

amplitude changes of the signal. Amplitude

Modulation is used for the AM broadcast bands.

AGC - Automatic Gain Control which is employed in

receivers to adjust the amount of gain in the receiver's

circuitry to prevent distortion and maintain a nearly

constant audio volume level over wide variations in

received signal strength.

CW - Continuous Wave transmission signals. Actually,

the signal is keyed on and off at precise intervals to

convey information. Morse code is the most common

CW signal.

DC Input - Direct Current power source such as is

available from batteries or regulated power supplies.

DX - Refers to stations which are unusually distant

from the receiver and are therefore frequently difficult

to receive. In the context of this manual, DX refers to a

built in preamplifier, which, when enabled, makes

these “DX”stations more readable.

Dynamic Range - Ability of the receiver to faithfully

reproduce high quality audio over a wide range of sig-

nal strength conditions - from very weak signals to

very strong signals.

Frequency - Rate of reoccurrence in hertz or cycles

per second of electromagnetic wave or carrier.

FM - Signals in which the information is conveyed by

frequency changes of the signal. Frequency Modulation

is used for the FM broadcast bands.

Electronically Switched Filter - A multi bandwidth

filter with high adjacent channel attenuationswitched

electronically.

GMT - Greenwich Mean Time.

HF - High Frequency band. This consists of the LW,

MW, and SW bands on the E1 receiver.

GLOSSARY OF TERMS

LCD - Liquid-Crystal Display - Low power consumption

displays used for wristwatches and information dis-

plays on many types of electronic equipment.

LSB - Lower Side Band - The lower frequency portion,

excluding the carrier, of an AM signal. A single-side-

band signal, in this case the lower sideband, contains

all of the modulation information of amplitude modu-

lation in one half the bandwidth.

RF - Radio frequency

RTTY - Radio Teletype communications.

Softkeys - Keys surrounding the display that have dif-

ferent functions under different conditions. The current

function of each individual softkey is shown on the dis-

play.

Squelch - A user controlled adjustment which mutes

the audio output below a certain signal strength.

Synchronous Detector - An amplitude modulation

detector which utilizes a replica of the original trans-

mitted carrier signal to improve the reception of weak

signals.

Synthesized - Capable of generating a large number

of different output frequencies, all related to a single,

highly stable reference source.

USB - Upper Side Band - The higher frequency portion,

excluding the carrier of an AM signal. A single side-

band signal, in this case the upper sideband, contains

all of the modulation information of amplitude modu-

lation in one half the bandwidth.

UTC - Universal Time Coordinated.

VFO - Variable Frequency Oscillator.

VHF - Very High Frequency band extends from approxi-

mately 30 MHz to 300 MHz.

Probable Cause SolutionProblem

No front panel display or light. (A) Power connection.

(B) Defective AC ADAPTER unit.

for portable operation, no AC power.

(D) Light turned off with ‘LIGHT’ key.

(A) Check power supply cables.

(B) Check AC ADAPTER.

tion.

(D) Turn light on with ‘LIGHT’ key.

No reception in XM mode. (A) XM antenna not connected.

(B) XM antenna not properly positioned.

(A) Connect XM antenna.

(B) Position XM antenna for maximum signal

strength.

Only a few channels in XM mode. (A) Have not subscribed to XM service. (A) Subscribe to XM Service.

No signals heard when antenna is connected

or sensitivity is low.

(A) Incorrect antenna input selected.

(B) Squelch set too high.

(A) Select correct antenna input.

(B) Set Squelch to lower level.

Signal Strength indication but no sound

heard.

(A) Improper mode selected.

(B) External speaker connected but defective.

(A) Check mode selection.

(B) Check external speaker.

No front panel operation such as tuning, fre-

quency entry, etc.

(A) Lock enabled. (A) Press ‘CLEAR/LOCK’ and hold for 3 sec-

onds to unlock front panel.

Timer does not operate. (A) Clock(s) not set.

(B) Timer not properly set.

(D) Timer(s) not enabled.

(A) Set clock(s).

(B) Set clock(s) and program timer ON/OFF

times.

desired one for timer event.

(D) Enable timers. Observe TIMER 1 or 2 on

display.

Passport to World Band Radio

Published by:

International Broadcasting Services, Ltd.

P. 0. Box 300

Penn's Park, Pennsylvania 18943

http://www.passband.com/

World Radio TV Handbook

Published by:

Billboard Publications Inc.

1515 Broadway

New York, NY 10036

http://www.wrth.com/

The ARRL Antenna Book

Published by:

The American Radio Relay League

225 Main Street

Newington, CT USA 06111

Library of Congress Catalog Card Number: 55-8966

http://www.arrl.org/catalog/?item=9043

The ARRL Handbook

Published by:

The American Radio Relay League

225 Main Street

Newington, CT USA 06111

Library of Congress Catalog Card Number: 41-3345

http://www.arrl.org/catalog/?item=1964

SUGGESTED REFERENCES

1 2 ... 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Comments to this Manuals

No comments

Eton E1 User Manual Page 32

Comments to this Manuals

Related products and manuals for Cars Eton E1