# BHED22748-200 Comtech PST RF Amplifier Used

**Additional Features:**

-   Frequency range: 225-400 MHz
-   Output Power: 200 Watts
-   KVA: 2.6
-   Digital Interface: IEEE488
-   Class of Operation: AB Linear
-   RF Input Power: 1mW (0dBm) for full output power
-   RF Input Signals: CW, AM, FM, Phase and Pulse Modulation
-   Harmonics: B.W.
-   Spurious: -60dBc Max
-   Input VSWR: 2.0:1 nominal
-   Output Load VSWR: 1.3:1, full forward power output 2:1, 0.5dB turndown nominal infinite, 10dB turndown nominal
-   AM Distortion (85% D.O.M.): 10% Max
-   Pulse Rise/Fall Time (typical): 150ns
-   Noise Power Output: -86dBm/Hz typical (model dependent)
-   Maximum RF Input: +8dBm
-   RF Connectors Input: Female Type N, Rear Panel; Output: Female Type N or SC, Rear Panel (model dependent)
-   AC Input: Power Factor Corrected Universal Input 100-240Vac, 50/60Hz
-   Efficiency (AC to RF): 16% typical
-   AM, FM, CW, pulse & phase modulated signal inputs
-   Field-replaceable modules
-   Graceful degradation
-   High efficiency switching power supplies
-   Standard 19” Rack Mount Configuration

**Applications**

-   EW/ECM systems
-   Communication systems
-   AM/FM transmitter boosters
-   TWT replacement
-   RFI/EMI testing
-   High power calibration testing

**Load VSWR Protection**

Series BHE amplifiers provide load VSWR protection via an electronic power output turndown system employing negative feedback techniques. The system is self-correcting as a function of load VSWR to infinity, at any phase angle. The typical response time is 60 μsec.

**Input/Output Overdrive Protection**

A leveling loop system protects the amplifiers from input overdrive signals of up to +8 dB. Under an overdrive condition, the output power is controlled at a level 2 to 10% above the rated output power at normal input level conditions. A power overshoot will be present at the beginning of the overdrive condition, which is a function of the amount of overdrive. Note that this characteristic can be used to obtain a 1 to 3 dB output (or more depending on model) power increase for narrow pulses with a low duty cycle.

The image is a representation of the actual product. Please see specifications and data sheet for details.

## Details

- **Price:** 0.0 USD
- **Vendor:** Comtech PST
- **Type:** Rf Amp
- **Tags:** Amplifier, Comtech PST, Manufacturers, Other Equipment, product_manual_group_1, Product_used, RF

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 0.00 USD | In stock |

## Images

- BHED22748-200 Comtech PST RF Amplifier Used

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> Source: [ValueTronics](https://valuetronics.com/products/bhed22748-200-comtech-pst-rf-amplifier-used)
> Updated: 2026-05-21