Elenco Electronics MO-1251 Bedienungsanleitung PDF herunterladen (Seite 11)

RADIO WAVE PROPAGATION, by

Lucien Boithias; McGraw -Hill, 11

West

19th

St.,

New York, NY 10011;

330 pages,

including appendixes,

in-

dex, and bibliography; 6

inches;

hardcover; $49.95.

Understanding

propagation

phenomena is

crucial

when plan-

ning

communications

links and

designing systems to

minimize in-

terference. Aimed primarily at

electrical and electronics engi-

neers, Radio Wave Propagation

provides

complete, practical

overview of

the field.

The first six chapters deal

with

line

-of -sight propagation, begin-

ning with

open

-space propagation

and a discussion of

major physical

phenomena such as

reflection, re-

fraction, and scattering.

Effects

the ground and

the troposphere

are also covered

here.

The remainder of the text deals

with propagation that

is not line

of- sight,

addressing the three

main

mechanisms

allowing links

to be established between two

points which are

not visible to

each other: diffraction by

hills,

scatter by

Earth's

curvature

and the

troposphere,

and

reflection by the

ionosphere.

There is

also a discus-

sion of how to solve the problems

of electromagnetic

disturbance

and

interference from

other

trans-

missions

and

radiation.

MODERN RELAY

TECHNOLOGY,

by Hans

Sauer;

Aromat

Corporation,

Marketing

Dept.,

629 Central

Ave-

nue, New Providence,

NJ 07974;

357 pages, including

tables,

refer-

ences and indexes; 6

81/2 inches;

hardcover;

$8.95, including

ship-

ping

and

handling.

This comprehensive reference

book, translated from the

original

German

by J.G. Naples, covers 240

relay

types and 6,000 relay

charac-

teristics. It

examines the history

relay

technology,

and

looks

its

future. Terms,

definitions,

and

for-

mulas

are presented, followed by

applications

of electromechanical

and

solid -state relays. Those in-

clude measuring

applications,

time -delay relays,

simple timing

circuits; automatic

control sys-

tems,

and stepper relays. There

are 50

illustrated

tables, and trans-

lations

of terminology

into

Ger-

man,

French,

and

Italian.

CABLE

-TV

BONANZA!

ITEM

UNIT

10 OR

HAMLIN

MCC 300036 CORDED

REMOTE CONVERTER

(Ch 3 only) 29.00

18.00

PANASONIC

WIRELESS CONVERTER

(our

best buy)

98.00

79.00

MOVIETIME

VR7200A (manual

fine tune)

8800

69.00

'JERROLD

400

COMBO

169 00

119.00

JERROLD

400 HAND REMOTE CONTROL

29 00

18.00

' JERROLD

450

COMBO

19900

13900

' JERROLD

450 HAND REMOTE CONTROL

29 00

18 00

JERROLD

SB- ADD -ON

9900

6300

'JERROLD SB-

ADD -ON WITH

TRIMODE

109.00

75.00

'M -35B COMBO UNIT

(Ch.

3 output only)

9900

7000

'M -35

B COMBO UNIT

WITH VARISYNC

10900

7500

' MINICODE

-12)

9900

6200

' MINICODE (N

-12)

WITH

VARISYNC

10900

6500

'MINICODE VARISYNC WITH

AUTO ON

-OFF

14500

10500

ECONOCODE (minicode substitute)

6900

4200

ECONOCODE

WITH VARISYNC

46.00

'MLD-

1200

-3 (Ch 3output)

9900

6200

'MLD -1200 -2 (Ch 2 output)

99 00

62 00

'ZENITH SSAVI CABLE

READY

175.00

12500

INTERFERENCE

FILTERS

(Ch.

3 only)

24 00

'EAGLE PD -3 DESCRAMBLER

(Ch 3 output only)

11900 65.00

'SCIENTIFIC

ATLANTA ADD -ON

REPLACEMENT DESCRAMBLER

119

85.00

'CALL

FOR AVAILABILITY

Quantity

Item

Output

Channel

Price

Each

TOTAL

PRICE

California

Penal Code

#593 -D forbids us

from shipping

any cable descrambling

unit

to anyone

residing

in the

state

of California.

Prices subject

to change

without notice.

,,, ,- ,,,r ,

SUBTOTAL

Shipping

Add

$3.00

per

unit

COD & Credit

Cards Cards -

Add 5%

TOTAL

Name

Address

City

State

Zip

Phone

Number (

O Cashier's

Check

Money Order COD

Visa

Mastercard

Acct #

Exp.

Date

Signature

FOR

OUR

RECORDS:

DECLARATION OF

AUTHORIZED USE

- I, the undersigned, do

hereby declare under

penalty of

perjury

that

all

products

purchased,

now and in the future,

will only be used on cable

systems

with

proper

authorization

from local officials or cable company

officials

in accordance with all applicable

federal

and

state

laws.

FEDERAL

AND VARIOUS STATE

LAWS

PROVIDE FOR SUBSTANTIAL CRIMINAL

AND

CIVIL

PENALTIES FOR UNAUTHORIZED

USE.

Dated' Signed'

Pacific

Cable Company,

Inc.

73251/2 RESEDA

BLVD.,

DEPT.

#EH

-8 RESEDA, CA 91335

(818) 716

-5914 No

Collect Calls (818)

716

-5140

IMPORTANT: WHEN

CALLING

FOR INFORMATION

Please have the make and model # of the equipment used

your

area.

Thank

You

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