PA-80U UHF Power Amplifier 430–470MHz, 80W, FM/SSB/CW/Digital

The TOPTEK PA-80U is a wideband UHF power amplifier covering 430–470 MHz, delivering up to 80W output from just 3–5W of input drive. Designed for both amateur and commercial UHF operations, it handles FM, SSB, CW, and digital modes with equal efficiency.

RF sense keying removes the need for a PTT connector, and the built-in 20dB low-noise receive preamplifier means no external preamp is required for receive. Front panel power and SWR metering, automatic fault protection above 2:1 SWR, and four settable power output steps (30W to 80W+) give full control in a compact heatsink chassis.

Key Features

• Frequency: 430–470 MHz (UHF)
• Output power: up to 80W (4 steps: 30W to 80W+)
• Input drive: 3–5W; bypass at up to 50W when amp is off
• Modes: FM, SSB, CW, and digital
• RF sense keying — no PTT connector required
• Built-in low-noise receive preamplifier: 20dB nominal gain
• Front panel power and SWR metering
• Automatic fault protection for SWR over 2:1
• Mode switch for SSB delay and peak power metering
• Type N female connectors (RF input and output)
• 60cm DC power cable with tinned leads (unterminated)

Specifications

• Frequency: 430–470 MHz
• Output power: 80W max (4 steps from 30W)
• Input: max 5W; bypass: max 50W
• DC input: 13.8V DC @ 13A max (10.5–14.8V operational range)
• Connectors: Type N female (in/out)
• Dimensions: 125 × 50 × 210mm
• Weight: 1.15 kg