CT Systems Wavetek 2500 User manual

CT SYSTEMS I WA VETEK
OPERATION MANUAL
MODEL 2500
CELLULAR TESTER/SIMULATOR
COMMUNICATIONS SERVICE MONITOR
THIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TOCT SYSTEMS. THE
INFORMATION IN THIS DOCUMENT IS Nar TO BE USED OR DUPLICATED IN
ANY MANNER WITHOUT THE PRIOR APPROVAL, IN WRITING BY CT SYSTEMS.
CT SYSTEMS I WAVETEK
P.O. BOX 470
BEECH GROVE, IN. 461 07
(U.S.A.)
{317) 787-5721
(TOLL FREE OUTSIDE OF INDIANA)
[phone]
Telex# 217124 CT SYS IND UD
FAX# [phone]
This equipment, or part, includes software copyrighted in 1989 and the notice of this
copyright is included in the software. The software included in this equipment. or any
part, may not be copied without violating the copyright la.ws of the United States and
the exclusive rights of CT SYSTEMS I WA VETEK.
9006

CT Systems I Wavetek warrants all instruments against defects
in material and workmanship for a period of one year after
shipment. CT Systems I Wavetek agrees to repair or replace
any assembly or component (except batteries, which are in
warranty for a 90-day period after shipping) found to be
defective under normal use during this period. CT Systems I
Wavetek obligation under this warranty is limited solely to
repairing any such instrument which, in CT Systems I Wavetek
sole opinion, proves to be defective within the scope of the
warranty when returned to the factory or to an authorized
service center. This warranty may, at CT Systems I Wavetek
sole discretion, be void if the -instrument ownership is
changed during the warranty period.
CT Systems I Wavetek will assume all responsibility for UPS
surface shipping charges for any warranty claims during the
first thirty (30) days from shipment date. After the first
thirty (30) days, CT Systems I Wavetek will assume
responsibility for one-way shipping charges, UPS surface,
F.O.B. customer's destination, during the warranty period.
Should the customer desire an alternate method of shipping,
he will be responsible for the · difference between the UPS
surface rate and the higher rate.
This warranty does not apply to any products repaired or
altered by persons not authorized by CT Systems I Wavetek or
not in accordance with instructions furnished by CT Systems I
Wavetek. If the instrument is defective as a result of
misuse, improper repair, abnormal conditions or operations,
repairs will be billed as per the CT Systems I Wavetek,
non-warranty program.
CT Systems IWavetek assumes no responsibility for its
products being used in a hazardous or dangerous manner,
either alone or in conjunction with other equipment. CT
Systems I Wavetek assumes no liability for secondary charges
or consequential damages and, in any event, CT Systems I
Wavetek liability for breach of warranty shall not exceed the
purchase price of the specific instrument shipped and against
which a claim is made.
This warranty is in lieu of all other warranties, express or
implied, and no representative or person is authorized to
represent or assume for CT Systems I Wavetek any liability in
connection with the sale of our products other than set forth
herein.

CONTENTS
SECTION 1 GENERAL INFORMATION
1.1 INTRODUCTION
1.2 CELLULAR MODE SPECIFICATIONS
1.3 SERVICE MONITOR MODE SPECIFICATIONS
1.4 GENERAL SPECIFICATIONS
SECTION 2 PREPARATION FOR USE
2.1 UNPACKING AND INSPECTION
2.2 POWER REQUIREMENTS
2.3 ENVIRONMENTAL CONSIDERATIONS
SECTION 3 OPERATION
3.1 INTRODUCTION
3.2 FRONT-PANEL DESCRIPTION
FIGURE 3-1. CONTROLS AND PORTS
FIGURE 3-2. REAR PANEL
3.3 CELLULAR RADIO TEST MODE OPERATION
3.4 SERVICE MONITOR MODE APPLICATION NOTES

SECTION-I
GENERAL INFORMATION
1.1 INTRODUCTION
The CT Systems Model 2500 is a cellular tester, cell site
and communications service monitor combined into one small,
use package.
simulator
easy to
The Model 2500 is specially designed for cellular testing and
includes a "Go-No-Go" automatic mode for quick cellular telephone
testing. A parallel printer port is provided so a hard copy of the
test results can . be generated when a user provided printer is
connected.
A manual mode enables the user to program individual parameters for
trouble shooting purposes. A non-volatile memory allows the user to
store frequently used system parameters.
Testing routines include cell site to mobile initiated calls; mobile
to cell site calls; cell site voice channel handoff; RF power level
control messages; mobile DTMF dialing; voice channel SAT and ST
frequency and deviation measurements.
Displays include mobile dialed number; mobile ID number, ESN (equip-
ment serial number) and station class mark.
In the Service Monitor Mode, the Model 2500 generates and receives
from 400 kHz to 999.9999 MHz in 100 Hz steps. The RF output leyel is
continuously variable from 0.1 uVolts to 10 mVolts in five ranges.
The Model 2500 contains a 1 kHz modulation source, a 10 Hz to 10 kHz
audio synthesizer and an external modulation input. The audio
synthesizer output has a second independently variable output on the
front-panel. Deviation markers at ±5 kHz or ±600 Hz may be
superimposed on the demodulated output for viewing on an external
oscilloscope in both the Receive and Generate modes.
The Model 2500 measures and displays SINAD in dB or % distortion,
volts, FM deviation, signal strength, carrier frequency, demodulated
audio frequency, error frequency and sub-tone.
Power may be applied to the RF in/out connector for measuring R.F.
power up to 110 watts (when terminated into a true 50 ohm load).
Twenty memory registers are available for storing and recalling all
front-panel keyboard settings. An optional RS-232 interface and two
available software packages allow for its use in automated test
systems.
2500-MANUAL PAGE 1 SECTION-1

1.2 2500 CELLULAR MODE SPECIFICATIONS
Generate
RF Frequency Range:
Resolution:
RF Output:
Accuracy:
Spectral Purity:
SAT Frequencies:
Digital Control Channels:
Receive
RF Frequency Range:
Resolution:
Power Meter
Range:
Accuracy:
Counter Modes
Frequency Error
Resolution:
Accuracy:
ST or SAT
Resolution:
Accuracy:
FM Measurements
FM Deviation:
SAT Deviation:
869 to 894 MHz (channels 001 to 1023)
with 45 MHz Duplex offset and 30 KHz
channel spacing
100 Hz
0.1 uv to 100 uV
+2 dB
< -
35 dBc (typically - 50 dBc>
+300 kHz · of center frequency
5.97, 6.00 and 6.03 kHz
0,1,2 and 3
824 to 849 MHz (channels 001 to 1023)
30 kHz
0 to 4 watts, with Internal Load
+10% of Reading, +1 mW
10 Hz
+200 Hz
1 Hz
+1 Hz
up to +17.85 kHz
up to +5 kHz
1.3 2500 SERVICE MONITOR MODE SPECIFICATIONS
Generate
Freq Range:
Resolution:
RF Output:
Accuracy:
Spectral Purity:
2500-MANUAL
400 kHz to 999.9999 MHz
100 Hz
0.1 uV to 10 mV in 5 ranges
+2 dB
<-35 dBc within ±300 kHz of center
frequency (within all land mobile
bands) (Typical <-50 dBc>
PAGE 2 SECTION-1

FM Deviation:
Accuracy:
Ext Mod:
Internal Mod:
Output Impedance:
Reverse Power Protection:
Receive
Freq Range:
Resolution:
Sensitivity:
Bandwidth:
Image Rejection:
RF Step Range:
Subtone Counter
Freq Range:
Resolution:
Mod Measurements
FH Deviation:
Accuracy:
FM Deviation Markers:
Freq Counter Modes
RF Freq:
Resolution:
Freq Error:
Resolution:
Audio Freq:
Resolution:
Power Meter
Range:
Accuracy:
Display:
2500-MANUAL
0
to 20 kHz peak
±5% of FS
All EIA tones, 10 Hz to 10 kHz
10 Hz to 10 kHz
50 ohms
Auto switch to internal load at inputs
greater than approx. 200 mw, on the RF
in/out connector
400 kHz to 999.9999 MHz
100 Hz
10 uv @ 10 dB SINAD, typical
10 kHz to 20 kHz
-50 dB
100 Hz
60 Hz to 270 Hz
0.1 Hz
0 to ±20 kHz
±5%
of FS @ 1 kHz from 0 to 10 kHz,
±10% of FS @ 1 kHz from 10 kHz to 20
kHz
±600 Hz, ±5 kHz (optional markers
available>. Accuracy of markers ±5% @
5 kHz deviation.
30 MHz to 999.9999 MHz
1 kHz
10 Hz to 10 kHz @ >3.0 uv rec. signal
10 Hz
10 Hz to 10 kHz
1 Hz
0 to 110 watts, auto r~nging 11 or 110
watts FS
+10% FS
to 600 MHz, +20% FS 600 MHz to
999.9999 MHz
Vacuum Fluorescent
PAGE
3 SECTION-1

Internal Mod Sources
Freq Range:
Resolution:
Output:
Fixed Freq:
Accuracy:
Signal Strength <Rec. Level)
Range:
Accuracy:
Display:
SINAD
Notch:
Range:
Resolution:
Accuracy:
Impedance:
Measurement Units:
RF Step Size:
100 Hz to 999.9999 MHz steps
Memory
10 Hz to 10 kHz
0.1 Hz, 10 Hz to 1999.9 Hz
1.0 Hz, 2 kHz to 10 kHz
0
to 1. 0 VRMS
1 kHz
Time Base ±1 count
60 dB (10 uV to 10 mV>
+3 dB at 10 uV
Vacuum Fluorescent
@1 kHz
0
to 30 dB
1
dB steps
+1 dB at 12 dB (+3% at 25%)
alOk ohms
% Distortion or dB SINAD
Stores all keyboard settings in each register for system storage.
Memory Size: 20 registers.
Voltmeter
Range:
Input Impedance:
Accuracy:
Aging Rate:
Temp Stability (0 to 50 C):
1.4 GENERAL SPECIFICATIONS
Operational Temp Range:
2500-MANUAL
+20V DC,
20 VAC peak, up to 50k Freq
:_lOOk ohms
+5% of FS
+1 ppm/year
+0. 2 ppm
0
to 50 C
PAGE 4
SECTION-I

Power Requirements:
AC
DC
Optional Internal Recharge-
able Battery:
Dimensions:
Weight w/Battery:
Standard Accessories
Options
2500-MANUAL
100/110/220/240 VAC ±10%, 50-400 cycles
10.5 to 15.2 VDC
>12 Volt, sealed lead acid, >lhr run
time
10"x6.5"xl5.5"
<22 lbs.
Operation Manual
Antenna
AC Power Cord
Parallel Printer Port for automated
Cellular Test Results
Service Manual
Model 300 Encoder/Decoder with
trunking, MTS, IMTS, analog, digital,
DCS and DTMF formats.
0.1 ppm TCXO
RS-232 Interface for Cellular Test mode
RS-232 Interface for Service Monitor
mode
Battery, 12 Volt rechargable
Protective Soft Cover
Accessories Kit (Including Front Dust
cover)
Dust Cover, for front panel
PAGE 5
SECTION-!

SECTION-2
PREPARATION
FOR USE
2.1 UNPACKING AND INSPECTION
Whe~ unpacking the instrument, inspect the shipping container and the
instrument for shipping damage. Save the shipping carton and packing
material for possible future use.
The instrument was inspected, given final operational and
control tests, then carefully packaged for shipment, and
operate in accordance with Section 3 of this manual.
quality
should
If the instrument received has been damaged in transit, notify the
carrier and your CT Systems Customer Service representative. The
representative will immediately arrange for replacement or repair of
your instrument without waiting for damage claim settlements.
CT SYSTEMS I WAVETEK
5808 Churchman By-Pass
Indianapolis, IN 46203-6109
800-245-6356 (outside Indiana) or
[phone] (in Indiana)
FAX [phone]
TELEX 217124
2.2 POWER REQUIREMENTS
The instrument operation is selectable for 100/120/220/240 VAC, 50/60
Hz primary power sources. The three conductor power cord provides a
ground connection when it is connected to the proper outlet.
The instrument can also be operated from 11.8 VDC to 15.2 VDC or with
an . optional 12 volt rechargable battery.
The external DC source should be connected to the "EXT +12 V IN" jack
on the rear panel. The plug (not supplied with the instrument>
should be a Switchcraft S-760 or equivalent with the negative
potential on the sleeve of the connector.
2.3 ENVIRONMENTAL CONSIDERATIONS
The instrument comes equipped with bottom and rear-panel feet (the
rear-panel feet also serve as cord wraps).
2500-MANUAL
PAGE 1 SECTION-2
'
J.

The instrument's small size and light weight permit easy access to
confined working spaces.
The instrument is designed to operate between 0 degrees C and 50
degrees C and should be used in an area where air flow around the
instrument is not restricted.
NOTE
Exceeding the upper and lower temperature limits for extended periods
may cause degraded performance or damage to the instrument.
2500-MANUAL
PAGE
2 SECTION-2