TOPTEK PA-80V/U Dual Band Amplifier

Please Note: This version does not have PTT socket

PA-80V/U is dual band power amplifier, primarily intended for use with dual band handheld FM transceivers. Amplifier automatically recognizes transmitting frequency and enables appropriate signal path. User can set output power level independently for VHF and UHF (built in ALC loop)

The actual VSWR is represented by a single "moving dot”. The lowest reading is 1.20,below this value a respective LED will start blinking , indicating Underrange

The highest reading is 1.90 and with a reading past 2.00 a different respective LED will begin to blink, signaling overrange.

Specification

• Frequency range (VHF): 138 MHz-174 MHz
• Frequency range UHF): 430 MHz-470 MHz
• Maximum output power: 85 Watt ALC limited
• Input power range: 1 Watt - 10 Watt Between carrier detect and overdrive thresholds
• Input power for full output: 5 Watt Frequency dependent
• Bypass power: 50 Watt
• Harmonics suppression: 60 dBc
• Modulation: FM, AM*
• Weight: 1.15kg
• Dimensions: H-50 x W-25 x L-210mm
• Circuit type: Twin MOSFET, PUSH PULL,two independet amplifier for VHF and UHF

*) AM can be used with caution, setting ALC power to maximum, and adjusting drive power to obtain approximately 20 30 Watt output power. That will leave required headroom for modulation. ALC must not get engaged during modulation peaks.