The Herotek DTM180AA and DTM180AB are broadband microwave power monitors designed for direct detection of pulse and continuous-wave signals from 1GHz to 18GHz.

Both models provide fast pulse response, flat frequency performance and an integrated 1W CW protection circuit. They share the same principal electrical specifications but use different output connectors and package sizes.

The DTM180AA has an SMA female output in a smaller package, while the DTM180AB uses a BNC female output for easier connection to oscilloscopes and laboratory instruments.

DTM180AA and DTM180AB Comparison

Herotek DTM180AA: Compact SMA Output

The DTM180AA uses an SMA male RF input and an SMA female detector output. Its smaller coaxial package is suitable for compact RF assemblies and test systems that already use SMA connections.

Choose the DTM180AA when:

Compact dimensions are important

The complete signal path uses SMA connectors

The detector will be installed inside an RF subsystem

A direct coaxial connection to another microwave component is required

Reduced package size is preferred over a larger laboratory connector

The SMA output is suitable for high-frequency coaxial routing, although the detected video signal and load impedance must still be considered when connecting the detector to measurement equipment.

Herotek DTM180AB: BNC Output for Test Equipment

The DTM180AB has the same 1–18GHz RF input range and detector performance as the DTM180AA, but it uses a BNC female output connector.

The BNC output makes it easier to connect the detector to oscilloscopes, digitizers, pulse analyzers and other laboratory instruments using standard 50Ω cables.

Choose the DTM180AB when:

The detector output connects directly to an oscilloscope

BNC cables are already used in the measurement system

Laboratory convenience is more important than minimum package size

Pulse waveforms must be viewed or recorded directly

A larger connectorized enclosure is acceptable

Ordering Information

DataStorageIC supports international inquiries for Herotek pulse and CW power detectors, including:

DTM180AA and DTM180AB quotations

Current price and lead-time confirmation

Datasheet and technical specification requests

SMA versus BNC output selection

Positive-output versions

Alternative Herotek power detector models

International RFQ and delivery support

Please provide the required model, quantity, destination country, expected delivery date and preferred output connector when requesting a quotation.

Frequently Asked Questions

What is the main difference between DTM180AA and DTM180AB?

The main difference is the output connector. The DTM180AA uses an SMA female output, while the DTM180AB uses a BNC female output.

Do the two models have different frequency ranges?

No. Both models operate from 1GHz to 18GHz.

Which model is better for connection to an oscilloscope?

The DTM180AB is generally more convenient because it has a BNC female output. The DTM180AA can also be used with an appropriate SMA-to-BNC cable or adapter.

What is the rise time of the DTM180 series?

The typical rise time is 1ns, with a specified maximum of 2ns under the recommended loading conditions.

What is the maximum input power?

Both models include protection for up to 1W continuous-wave input power.

Can the DTM180AA and DTM180AB measure absolute RF power?

They can be integrated into calibrated RF power-measurement systems. Accurate absolute measurements require calibration for frequency response, output loading, input level and cable loss.