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Economical RF Power Sensor Calibrator Prices and specifications subject to change without notice.
The Model 1825 RF Power Sensor
Calibrator is an accurate, economical,
and reliable instrument for calibrating
RF Power Sensors in the 10 MHz to 18
GHz frequency range. This instrument
detects the level of RF power being
applied to an RF power sensor. Resulting
voltage readings are measured by the
customer-supplied DVM. Cal factors for
the UUT are determined by comparing
the readings of the DVM with the
readings of the customer-supplied power
meter. Cal factors are obtained by
performing a few simple calculations. A
Microsoft Excel spreadsheet with the
formulas inserted is included with
the instrument.
The Model 1825 is a low-cost, non-
automated version of the popular
TEGAM System IIA. No additional
software is supplied or required. The
Model 1825 offers the same accuracy
and reliability as other TEGAM test
instruments. The 1825 is not a
microprocessor-controlled instrument,
but it is simple to operate.
Since measurements are taken with
an external DVM, the 1825 could be
integrated into an automated workstation
depending on the DVM used and the
customer's ability to provide the
appropriate software.
The Model 1825's built-in
Thermistor RF Power Standard is
internally temperature controlled, so
changes in ambient temperature will not
affect power measurements. The Type IV
Bridge Circuitry detects RF power by
using the DC power substitution method.
DC power levels can be measured to
within ±0.003%.
The Model 1825 is simple to
operate. To calibrate a power sensor, the
operator connects the output from the
customer-supplied RF signal generator to
the RF INPUT of the 1825 and the + and
- input of the customer-supplied
voltmeter to the VOLTMETER red and
black binding posts on the 1825. Connect
the UUT
to a customer-supplied
compatible power meter and to the
SENSOR port of the 1825 and start
taking measurements. The DVM and
Power Meter readings are then used in
some simple calculations to determine
the cal factor of the UUT at the selected
frequency. These calculations can be
performed by the user or by entering the
meter readings into the Microsoft Excel
spreadsheet provided by TEGAM. This
spreadsheet contains the formulas
necessary to calculate cal factor and
is provided as a convenience for
our customers.
Economical RF Power
Sensor Calibrator
Model 1825
Calibrates 10 MHz to 18 GHz RF
power sensors from Agilent (HP),
Anritsu, Boonton, Gigatronics,
Rohde & Schwarz, TEGAM
and others
Ideal for labs with annual
calibration workloads of 25 RF
power sensors or less
Less than 1/3 the cost of a
comparable System IIA
Can calibrate many popular sensors
in 30 minutes or less
The accuracy and reliability you
have come to expect from TEGAM
No software to learn
Compact and easy to use
All connectors are located on the
front panel for easy connection
Rack mount kit available
Optional A2LA Accredited
Calibrations
NOTE: Customer must provide an
appropriate RF Signal Source, DVM
and an RF Power Meter for the UUT
R F C A L I B R A T I O N A N D M E A S U R E M E N T P R O D U C T S
YOUR GLOBAL SOURCE FOR TEST
AND MEASUREMENT SOLUTIONS
® Specifications
Frequency Range
10 MHz to 18 GHz
Power Range
0.01 to 25 mW (-20 to +14 dBm)
Substitution Bridge Accuracy
±0.003%
Nominal RF Impedance
50 Ohms
VSWR
1.14
Power Linearity
<0.1% from 1 to 10 mW
Insertion Loss (RF INPUT)
6 dB nominal, 9.5 dB max
Individual calibrations traceable
10 to 100 MHz in 10 MHz increments
to NIST supplied at the following
100 MHz to 2 GHz in 50 MHz increments
frequencies:
2 GHz to 4 GHz in 100 MHz increments
4 to 12.4 GHz in 200 MHz increments
12.75 to 18 GHz in 250 MHz increments
Calibration Factor Accuracy
+/-1.00% from 0.01 to 10 GHz
+/-1.10% from 10 to 18 GHz
Calibration Factor Drift
<0.5% per year
Connectors
SENSOR
N-type Female
RF IN
SMA Female
VOLTMETER
Binding Post, standard 0.75" spacing for banana plugs
Temperature
Operating
+12° to +32° C (+54° to 90° F)
Storage
-40° to +75° C (-40° to +167° F)
Warm up time
2 hours minimum from instrument power up
Power Requirements
12 Watts, 47 to 420 Hz, 105 to 125 VAC standard or 210 to 250 VAC with a factory
installed option.
Weight
17.2 lbs (7.4 kg)
Physical Dimensions
Height
3.5 in (88.9 mm)
Width
18 in (457.2 mm)
Depth
15.4 in (390.7 mm)
Rack Mounting
The Model 1825 can be mounted in a standard 19" rack, with rack mount kit
RM-1825
Additional Equipment Required:
Signal Generator
10 MHz to 18 GHz Frequency Range, Continuous Wave, 6 dBm minimum power
output.
DVM
DC Volts, 6 1/2-digit minimum.
RF Power Meter
Compatible with the sensor under test.
Included Accessories
Operation Manual
PN # 1825-901-01CD
Power Cord
PN # 068-21
Options
Padded Carrying Case
PN # 1800
3-Foot Test Cable
PN # 1585-1000
Rack Mount Kit
PN # RM-1825
A2LA Accredited Calibration
PN # OPT-A2LA
This data sheet was current when it was produced. However, products are constantly being updated and improved. Because of this some differences may occur between
the descriptions herein and the current product. Prices and specifications may be changed without notice.
TEN TEGAM WAY GENEVA, OHIO 44041
440-466-6100 FAX 440-466-6110
www.tegam.com e-mail: sales@tegam.com

E C O N O M I C A L
R F P O W E R S E N S O R C A L I B R A T O R
Model 1825
YOUR GLOBAL SOURCE FOR TEST
AND MEASUREMENT SOLUTIONS
®
Certificate no. 2018.01