Zephyr 700 User Manual

ELECTRONICS, LTD

700 SERIES

SCPC

Satellite Receivers

ZEPHYRUS ELECTRONICS, LTD

168 South 122 East Avenue,

Tulsa, OK 74128-2405 USA

Phone [phone] Fax [phone]

Web site http://www.big-z.com

Email [e-mail]

Thank you for using our equipment. We will do our best to

earn your continuing confidence in Zephyrus and our products. Any time you need information or help, give us a
call at 918-437-3333 (US).

It's a good idea to look the equipment over for
any shipping damage as soon as it is received.
If damage is discovered, contact and file a
claim with the freight company. They are
responsible to you.

We hope it doesn't happen, but if you ever
have a problem that requires you to send
equipment back to us for repair or
replacement, Please pack a note in with the

device. Give us as much information as
possible;-- what the problem is and anything

you can tell us that might help solve it.
Customer feedback is the last line and a very
vital part of our overall quality control.

It will also help both of us if you will get an
RMA number from the service technician you
are talking with. We will certainly accept
products for service without a number, but any
notes that the tech makes in his phone calls
with you might not get tied to your unit when it
gets here.

Our Limited Warranty is as follows:
We will fix or replace any product that is

defective within One year (Australia) after you
receive it. We won't cover damage from
accident or misuse. Warranty is FOB the
factory or our servicing distributor. Our
responsibility is limited to repair or
replacement only and no other expenses or
consequential damages. No other warranties
apply.

Whether your warranty has expired or not,
customer support and assistance is the
backbone of our business. Our managment
has a background in broadcasting, so we
understand the seriousness of "equipment
down." We'll do all we can. --Your referral
to a friend might even be our next sale!

We make quality affordable

thankyou.sam

OPERATING THE ZEPHYRUS 700 SERIES

MA700TBL.SAM

SCPC SATELLITE RECEIVER

Table of Contents

SECTION 1 General Information

-An overview and summary description of the system
describing features and design philosophy.

-System specifications and typical operating criteria.

SECTION 2 Front Panel Layout and Operation

-Meter operation and calibration, control information.

-Details of Readout Display and Keypad Data Entry.

SECTION 3 Installation of the 700 Receiver system

-Dish and polarity optimization.

-Notes on signal quality problems.

SECTION 4 SYSTEM OPERATION AND CUSTOMIZATION

-Components to make up a 700 system.

-External connections.

-Locations and use of customer usable jumpers and internal
adjustments.

ZEPHYRUS ELECTRONICS, LTD

168 South 122nd East Avenue

Tulsa, Oklahoma 74128-2405 USA

Pho 918 437-3333 Fax [phone]

Operating the Zephyrus 700 Series

SCPC Satellite Receiver

General information

The 700 receiver system is contained in a 3½" frame
and features microcomputer electronics that control
and monitor operation of either one or two receiver
modules and the LNB. Primary power is normally
117 vac with 240 volt units available. Rack mounting
is optional.

v Input signal to the receiver is L band at

950-1450 MHz and is usually supplied by an
LNB with ±50 kHz stability.

v
v A "relative" RF signal meter monitors amplitude

of the carrier at the demodulator of the first audio
channel. The position of the meter needle may
be changed with the adjustment directly below
the meter. Any variation from this setting will
then be due to a change in the strength of the
received signal. Therefore, it may be used for
peaking the dish and/or day to day monitoring of
system stability, such as dish movement or

cable problems.

v Frequencies of the C or Ku band satellite and

the SCPC frequency are entered through a
keypad. --We use the satellite frequency, rather
than a transponder number, because of the total
lack of any industry standard relating to a
transponder numbering system. They are
displayed on the top line of the backlit
alphanumeric readout. The bottom line of the
readout gives the results of the fault-monitoring

duties of the processor. The front panel of the
700 frame is sloped to make it easy to read the
LCD display and enter data through the keypad.

v The audio meters are backlit with LED's (low

brightnes level is normal). Light is red if the
channel is in a signal failure (squelch) mode and
is green in normal or squelch defeat operation.

v Squelch of the output audio signal is provided by

circuits that listen for high noise levels. The
squelch may be defeated with front panel
switches located next to the audio meters.

Standard receiver modules are for 15 or 7.5 kHz
audio signals, with others available on special order.
Baby boards on the receiver modules contain audio
process/companding circuits for the particular
system. Deemphasis time is selected with jumpers.
Both balanced and unbalanced output connectors
are provided on the rear panel.

A 70 MHz output is provided for use with external
demodulators. Mode C contacts of a fault-alarm
relay are available at the back panel

General Information MA700OVW.sam

SECTION 11