AVCOM PSA-37XP Manuel utilisateur

PSA-37XP

Portable SpectrumAnalyzerfor:

AVCOMof Virginia, Inc.

7730 WhitepineRoad

Richmond,VA 23237USA

804-794-2500

www.avcomofva.com

Owner’s Manual

AVCOM Publication No. PSA37XP

Revision 5

April2007

TABLE OF CONTENTS

Inputs, Outputs, andControls............................ 4

MenuQuick Reference ...................................... 8

Initial Menu .......................................................... 10

Start-UpMenu ..................................................... 11

OperationMenu................................................... 18

Preliminary Operation......................................... 24

BandAid Operation ............................................ 25

MFC Operation .................................................... 26

Specifications...................................................... 28

Battery Information............................................. 29

FrequencyAllocationCharts ............................. 31

FrequencyReference Definitions ...................... 32

Warranty .............................................................. 33

AVCOMof Virginia, Inc.

7730 Whitepine Road

Richmond, VA 23237

Phone (804) 794-2500

Fax(804) 794-8284

www.avcomofva.com.com

PSA-37XP(owners manual)

PLEASE READ CAREFULLY BEFORE USING THE PSA-37XP

GENERALSAFETY

IFONE OR MORE COMPONENTS OFYOUR EARTH STATION IS CONNECTED TO

120 VOLTAC LINE CURRENT. ITIS IMPORTANTTHATYOU GROUND ALL COMPONENTS

OFYOUR SYSTEM, PARTICULARLY THE ANTENNA, TO REDUCE THE POSSIBILITY

OFDANGEROUS ELECTRICAL SHOCK.

WHEN USING INSTRUMENTS SUCH AS THE PSA-37XP, POWER HAND TOOLS,

AND ANY OTHER APPLIANCE CONNECTED TO AN ELECTRICAL OUTLET, EXERCISE

GREATCARE TO ENSURE THATTHE DEVICE IS GROUNDED EFFECTIVELY TO

AVOID ELECTRICAL SHOCK. DO NOTUSE WHILE STANDING IN WATER, ON DAMP

EARTH, OR WHILE IN PERSONAL CONTACTWITH A CONDUCTING SURFACE SUCH

AS A METAL LADDER OR CHAIR.

ALSO:

♦ USE PROPERLY GROUNDED ELECTRICALOUTLETOR EXTENSION CORD

♦ DO NOTCUTGROUNDING PIN FROMLINECORD PLUG

♦ USE FUSES OFCORRECTAMPERAGE

♦ DISCONNECTLINE CORDS WHEN WORKING INSIDE RECEIVER OR ON ANTENNA

♦ ENSURE THE ANTENNA AND OTHER COMPONENTS OFYOUR EARTH STATION AREPROP-

ERLY

♦ GROUNDED

♦ DO NOTSERVICE EQUIPMENTALONE—WORK WITH SOMEONE WHO CAN ADMINISTER HELP

AND FIRSTAID

♦ PERSONS WORKING WITH LINE VOLTAGES SHOULD BE TRAINED IN AND CAPABLE OFPER-

FORMING FIRSTAID AND RESUSCITATION TECHNIQUES

IMPORTANTCAUTIONS

1. The PSA-37XP supplies +13/+18 VDC on the RFconnectorsto power most LNA's. It isthe customers'

responsibility toensure thatthe components beingpowered by the PSA-37XP are compatible with +13/

+18 VDC. If indoubt, consult the manufacturer of the component.

2. Do not couple theinput of the PSA-37XP tohigh power RFsources such as walkie-talkies, CB radios,

transmitters, etc. Signallevelsin excess of 0 dBmcan damage the sensitivemixers in the instrument re-

sultingin otherwise unnecessary expense andrepairs.ExternalDC voltage not to exceed 50VDC.

3. HANDLE WITH CARE- The PSA-37XP SpectrumAnalyzer is a precision instrument designed for nor-

maloperating and handling conditions. It should be protected fromabuse such as dropping, throwing, and

other rough handling. When being transportedina vehicle, or shipped, thePSA-37XP must be cushioned

and protected against shock and vibration.

INPUTS, OUTPUTS, AND CONTROLS

Front Panel

A. BNC Jack (1—2200 MHz)

The BNC jack is used to receive signalsusinga whip antenna, cable, ora probe. This jack is the

RFInput jack used inconjunction with Band 1(1—1100MHz) and Band 2 (950—2150 MHz) of the

spectrumanalyzer.

WARNING! Voltage is present onthis jack when the LNA/LNB power switch isin either the 13V or 18V

position.

B. N-Type Jack (2.1—4.2 GHz)

The N-Type jack isused for receiving signalswhen operating ineitherBand 3 (2100—3200 MHz)

or Band 4 (3200—4200 MHz) ofthe spectrumanalyzer.

WARNING! Voltage is present onthis jack when the LNA/LNB power switch isin either the 13V or 18V

position.

C. POWER Switch

Use thisbutton to turn the PSA-37XP ON or OFF

D. 22KHz Switch

This switch putsa 22KHz signalon connectors when the LNA/LNB Power is applied

E. LNA/LNB PowerSwitch

This switch can be placedin either the13V or 18V position which willthen provide thecorrect volt-

age to power an externalLNA/LNB.

F. REFERENCE Level

The Reference Levelcontrolestablishes the amplitude calibration for the display. This switch can

A B

C D E F

G H

I J K

L NM

be positionedin either 0dBm, -20dBmor -40dBm. The –40dBmposition is the most sensitive posi-

tionand signals as weak as -90dBmcan be seen.

G. POWER (CHARGE) Light

¨ SERIAL 1005XXXX AND BEFORE : Thislight willbe lit, and steady, when theunitis opera-

tional. Thelight willblink when the analyzeristurned off, but charging. When the battery

charge islow, thislight willblink rapidly.

¨ SERIAL 1105XXXX TO PRESENT: Thislightwillbe litonly when the battery needs charge.

H. LNA/LNB PowerLight

Thislight willbe on when the LNA/LNB Switch is either in the 13V or 18V position. It willbe off

when the switch isin the off position.

I. TUNING Knob

Tunes the PSA-37XP through the selected band and centers signals of interest on thedisplay

while their frequencyis shown at the top center of the display.

J. SPANWIDTH Knob

Controls thesweep width of the SpectrumAnalyzer. When fullyclockwise, signalsinthe entire

bandwidth ofthe selected band are displayed.Then, ifa smaller area of that spectrumis to be ex-

amined, the area is centered over the verticalcenterline withthe TUNING Knob and the SPAN con-

trolturned counterclockwise to see the signal more closely.

K. RESOLUTION BANDWIDTH Knob

This knob isused tocontrol the resolutionbandwidth of the spectrumanalyzer. ThePSA-37XP

has the following ResolutionBandwidth selections:

3 MHz

1 MHz

300 kHz

75 kHz

L. SCALE dB/Div

Used to select amplitude sensitivity ofeither10 dB/DIV or 2 dB/DIV. The 2 dB position is particu-

larlyhelpfulfor peaking the antenna and feed horn andis not calibrated.

M. VERTICLE POSITION Knob

Controls theverticalposition ofthe trace.

N. BAND SELECTKnob

Selects the frequency rangeof interest tobe displayed on the SpectrumAnalyzer. The PSA-37XP

has the following bandsto choose from:

BAND 1: 1 — 1100 MHz

BAND 2: 950 — 2150 MHz

BAND 3: 2100 — 3200MHz

BAND 4: 3200 — 4200MHz

O. MENU Buttons

These buttons are used to controlthe menu structureof thePSA-37XP.

( Refer to MENU Structure Reference Section )

BackPanel

P. METALFoot

This metalfoot can be used to stand the uniton a firmsurface with the LCD Display facingup to-

ward the technician. It is also used as a cord wrap for the AC/DC power cables.

Q. RS-232

The RS-232jack is provided for remote controlof the PSA-37XP and also firmware updates.The

standardbaud rate for communications is 115Kbps. See USER OPTIONS - Serial Port Options.

R. MFC-XXXX

This portis used to connect a Frequency Converter for usein higher frequencyranges. See AC-

CESSORIES

S. BATTERY PANEL

Two thumbscrews are provided for easy removaland attachment of the rear battery paneltoac-

cess the LithiumIon batteries.

T. DC FUSE

Fuse for circuitprotection. The 2Amp 250V fuse must be in place to operate whilepluggedin to

the AC/DC Converter, oron battery power.

U. DC INPUTJACK

15V DC Jack for power input. This unit willrun on either a AC-DC Converterat 15VDC, oron a

12VDC car power adapter. Running the unitwith a 12VDC sourcewillnot be sufficient tocharge

the batteries. Charging of the batteries should be accomplished byplugging the PSA-37XP into

the converter at 15VDC

V. WEB PAGE

You can access more information on the AVCOMproducts on the internet.Please visit

www.avcomofva.com.

W. MFC .1-2.1 GHZOUTPUT

The BNC jack is used for output frequency from 0.1 to 2.1 GHz inhigh frequency ranges.

X. MFC INPUT

This N-typejack is used for receiving signalsin higher frequency ranges.

A.MENU Buttons

These buttons are used to controlthe menu structureof thePSA-37XP.

B. MENU Structure

Thisis the actualmenu structure used inconfiguring the unit. As the MENU Buttons are pressed,

the value, or menu structure willchange accordingly.

C. MODELNumber

The valueshowin thisposition is the MODEL Number of the spectrumanalyzer.

D. CENTER Frequency

This value is controlled by theTUNING Knob and represents the frequency at the center division of

the screen.

A G

C E F

H K L

E. SPAN Width

The valueof thisisdetermined by the SPAN WIDTH Knob and shows the MHz/div chosen.

F. MENU SELECTION Value

This shows the value of the chosen menu selection. In the above reference, it shows the valueof

the screen contrast. As theCONTRAST+ menu button is pressed, the value willincrease.

G. AMPLITUDE

The numbers on the rightside of the screen depictthe amplitude value in dB.

H. MINIMUMFREQUENCY Value

A value inthis position shows the lower frequency value fromthe center line. It is derived fromthe

Center Frequency — (SpanWidth/div X 4 Div)

I. TIME

Thisis the current time.

J. CENTER Frequency

Center Frequency as determined bythe TUNING Knob.

K. DATE

Thisis the current date as set inthe analyzer.

L. MAXIMUMFrequency

A value inthis position shows the upper frequency value fromthe center line. It is derived fromthe

Center Frequency + (Span Width/div X 4 Div)

Button Label Description

M MENU Takesyou to the standard menu structure of the ana-

lyzer

1 only atstartup Entersinto amenu structure that isonly available at

the first boot of the spectrumanalyzer.

2 Not Used

3 Contrast + Increasesthe value of screen contrast. Adjustforuser

preference.

4 Contrast — decreasesthe valueofscreen contrast. Adjustfor

user preference.

5 Not Used

6 Display of last software modificationsdate Viewonly

7 Not Used

MENU STRUCTURE REFERENCE

INITIALMENU: This menu is onlyseen on the initialboot of the spectrumanalyzer

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