Transmitter RF Power Monitors - In Situ Calibration
World Class first in-situ power measurement standard. Calibrate during operation, while ON-AIR. Never any need to remove from service which equates to no downtime. Traceable to National Institute of Standards and Technology (NIST).
Features
- Low Cost in-situ power measurement solution designed for operation inside the transmitter or after the combiner.
- In-line calibration capability allows for greater accuracy in a single application (with an accurate power reference)
- Integrated non-directional coupler allows for spectral analysis of the signal in minimal space requirements
- Accurately measures true average power for digitally modulated systems
- +/- 5% of reading accuracy for both forward and reflected power (10:1 ratio for forward to reflected power)
- 7/8", 1 5/8", and 3 1/8", 50 ohm lines available for FM, VHF, and UHF broadcast frequencies
- DB9 output provides a linear DC voltage output from 0 to 4 volts allowing for a wide variety of interface options.
CHART A
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VHF (54-216 MHz)
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UHF (470-806 MHz)
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Line Size
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Power Designator
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Forward Power Range
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Power Designator
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Forward Power Range
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7/8"
|
Low
Medium
High
Very High
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15 W - 500 W
30 W - 1.0 kW
80 W - 2.5 kW
150 W - 5.0 kW
|
Low
Medium
High
|
15 W - 500 W
30 W - 1.0 kW
80 W - 2.5 kW
|
1 5/8"
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Low
Medium
High
Very High
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30 W - 1.0 kW
80 W - 2.5 kW
150 W - 5.0 kW
300 W - 10 kW
|
Low
Medium
High
|
30 W - 1.0 kW
80 W - 2.5 kW
150 W - 5.0 kW
|
3 1/8"
|
Low
Medium
High
Very High
|
150 W - 5.0 W
300 W - 10 kW
800 W - 25 kW
1.5 kW - 50 kW
|
Low
Medium
High
|
150 W - 5.0 W
300 W - 10 kW
800 W - 25 kW
|
Note: For best accuracy, pick the lowest power range that includes your maximum average operating power. Other sizes and power ranges available upon request.
Item No
TPM Series, Monitors
Item Name
Transmitter Power Monitor
Frequency Range
L = 54-88 MHz
F = 88-108 MHz
H = 174-216 MHz
U = 470-806 MHz
Forward Power Range
See Chart A
Reflected Power Range
10% of Forward Power Range
Measurement Type
In-line, True Average Power
Peak Average Ratio
10 dB max.
Coupler Directivity
30 typical, 26 dB min. (RFL)
Display Options
3140A4 (4 Channel)
3140A8 (8 Channel)
Operating Temperature
-10 to +50° C
(14 to 122° F)
Storage Temperature
-40 to +80° C
(-40 to 176° F)
Humidity
95% ± 5% max. (noncondensing)
Altitude
Up to 10,000 feet (3,048 m)
Weight
TPM7: 3.5 lbs
TPM1: 5.5 lbs
TPM3: 8.0 lbs
3140: 2.5 lbs.
Calibration Cycle
Annual
Standard calibration cycle of 1 year for re-verification, but can be re-calibrated by the customer with an accurate power reference See Applications Brochure