YAESU - SPA-1 - Amplifier for FTX-1F Field to OPTIMA

Yaesu SPA‑1: Unleash the full power of your FTX‑1

The Yaesu SPA‑1 transforms your FTX‑1 Field into a true high-performance fixed station.

This module installs without tools on the rear of the main unit and offers an output power of 100 W in HF/50 MHz and 50 W in VHF/UHF , while integrating advanced features such as automatic antenna tuning and a front speaker .

Designed specifically for the FTX-1F, the SPA-1 significantly expands the transceiver's capabilities in stationary mode, while maintaining system portability.

Main features

Integrated RF amplifier

• HF/50 MHz: up to 100 W

• 144/430 MHz: up to 50 W

• A notable increase in power over the FTX-1's native QRP mode.

Automatic antenna tuner

• Optimized for HF and 6m, up to 100W

• Avoids the addition of an external tuner, simplifying deployment.

• Compatible with a wide variety of antennas.

Built-in speaker

• Power: 2.5 W on the front

• Clear and powerful sound without additional accessories.

An asset for your station

• Complete modularity: Switch from 6W portable operation to a 100W fixed configuration instantly.

• Hybrid configuration: ideal for easily switching between field and fixed station (home, club, mobile).

• Quick installation: direct connection, immediate commissioning, intelligent management of power and antennas.

Physical details and accessories

Included with the SPA-1:

• Ready-to-use SPA-1 module

• High current power cable (25 A)

• 2-pin cable for the Field Head (parallel use)

Technical characteristics:

• Dimensions: 213 × 89 × 185 mm

• Weight: approx. 2.65 kg

• Consumption :

  • Reception: 0.6 to 0.9 A

  • Transmission: up to 21 A

Optimized design and integration

• Screwless Direct Attachment: The SPA-1 connects cleanly to the FTX-1 without tools.

• Robust structure: side ventilation for efficient heat dissipation.

• Dual antenna connectivity: two HF/6 m ports for added flexibility.

• Maintained portability: despite its power, the footprint remains minimal.

The SPA‑1 is the essential accessory for any radio amateur wishing to increase the power and versatility of their FTX‑1F, without compromising ease of use or mobility.