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# L-3 / Narda / Miteq 4247B-10 2.92 mm Connector Series Ultra-Broadband Coupler

_Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._

## Summary

- Manufacturer: L-3
- Model: 4247B-10
- Condition: Used and in Excellent Condition
- Price: $420.00 USD
- Availability: In stock, 7 available
- Warranty: 1-Year Warranty with 30-Day Return Guarantee
- ITAR restricted: No
- Shipping weight: 0.5 lb, estimated
- Shipping dimensions: 8X8X3 in, estimated

## Categories

- Test Equipment > Electrical Test > Couplers (primary)

## Details

### Configuration

-  Frequency Range: 6-26.5 GHz
- Coupling: 10±1dB
- Directivity: 12 dB Min.
- Insertion Loss:

     -Excluding Coupled Power: 0.9 dB

     -True: 1.5 dB
- Primary Line VSWR (Max.) : 1.5
- Secondary Line VSWR (Max.): 1.5
- Frequency Sensitivity: ±0.75 dB Max.
- Average Power: 20 W
- Peak Power: 0.2 kW

## Function

A passive, 10 dB directional coupler designed for sampling RF and microwave signals. It operates over a 6.0 to 26.5 GHz ultra-broadband frequency range. The device is a coaxial component utilizing 2.92 mm (K) female connectors for input, output, and coupled ports, enabling integration into high-frequency systems via coaxial cables. Common applications include power monitoring, signal injection, source leveling, and swept measurements in laboratory test setups, telecommunications infrastructure, and electronic warfare (EW) systems.

## Platform

Designed for integration into RF and microwave systems utilizing coaxial transmission lines. Connects in-line via 2.92 mm (K) connectors, interfacing with components like signal generators, spectrum analyzers, and amplifiers. Primarily used for broadband applications such as power sampling, signal monitoring, and leveling loops within test and measurement setups, electronic warfare (EW) systems, and high-frequency communication transceivers operating within its specified frequency range.

## Application

The 4247B-10 is a broadband directional coupler operating from 6 to 26.5 GGHz, offering a nominal coupling of 10 dB with ±1.0 dB flatness. It features 2.92 mm connectors for RF input/output. The coupler is designed for integration into microwave systems for signal monitoring, power division, and signal injection applications.

## Images

- <https://www.artisantg.com/itemimages/l_3_narda_miteq_4247b_10_view1_2025923123848.jpg>
- <https://www.artisantg.com/itemimages/l_3_narda_miteq_4247b_10_view2_2025923123848.jpg>
- <https://www.artisantg.com/itemimages/l_3_narda_miteq_4247b_10_view3_2025923123848.jpg>
- <https://www.artisantg.com/itemimages/l_3_narda_miteq_4247b_10_view4_2025923123848.jpg>
