# 778D Agilent Directional Coupler Used

**Additional Features:**

-   Dual-directional
-   High directivity
-   Excellent mean coupling accuracy
-   Frequency Range: 100 MHz to 2 GHz
-   Nominal Coupling and Variation: 20 ±1.5 dB
-   Directivity: >36dB to 1 GHz
-   Maximum SWR: 1.1
-   Insertion Loss: <0.60 dB
-   Power Rating Average, Peak: 50 W, 500 W

The Agilent 778D is a used Coaxial Dual-Directional Coupler that is designed for swept measurements in the 100 MHz to 2 GHz range. The Agilent 778D's high directivity and mean coupling accuracy of ±0.5 dB makes the Agilent 778D ideal for reflectometer applications. The auxiliary arms track very closely, making this coupler particularly useful for reflectometers driven by sweep oscillators.

## Details

- **Price:** 0.0 USD - 315.0 USD
- **Vendor:** Agilent
- **Type:** Dir Coup
- **Tags:** Agilent, Agilent Keysight, Coupler, Directional, Manufacturers, Other Equipment, product_manual_group_1, Product_used

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| None | 0.00 USD | In stock |
| NIST Traceable | 175.00 USD | In stock |
| NIST Traceable with Full Data | 245.00 USD | In stock |
| ISO IEC 17025 Accredited | 315.00 USD | In stock |

## Images

- 778D Agilent Directional Coupler Used

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> Source: [ValueTronics](https://valuetronics.com/products/778d-agilent-directional-coupler-used)
> Updated: 2026-05-21