Toptek Communications PA-350V VHF 135-165 MHz 350W Power Amplifier

The PA-350V is is an advanced and versatile high-power Solid State linear amplifier designed for Amateur Radio 2 Meter FM, SSB and CW operations and Commercial VHF. A large, easy-to-read green backlit Alphanumeric LCD provides simultaneous digital input power, output power and SWR readings. Front panel button actions and specialized, user-defined function readouts and menu selections are displayed, including incremental 100, 200, 300 and 350W power output settings. This VHF amplifier* delivers approximately 300 watts output with only 5 watts input from an HT or 350 watts maximum output with a VHF mobile. The PA-350V has two selectable input ranges, Low 15W max and High 30W max, achieving 350 watts output with either 10 watts input or 15 to 25 watts input, to accommodate almost any VHF transceiver. Multiple protection circuits, a Receive Low Noise Amplifier (LNA) with a bandpass filter, RF sense or PTT keying (required for SSB/CW) and thermostatically controlled fans are some of the great features of this top-of-the-line Toptek amplifier. True 50 ohm Type-N RF connectors maintain the highest efficiency to the feedline and antenna. The optional accessory Remote Control Panel, TEK-REMOTE is available separately.

*Requires 13.8 VDC @ 50A continuous max. (External power supply not included).

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Features of the Toptek PA-350V Amplifier:

• Wideband Solid State VHF power amplifier delivers over 350 watts of RF output typically with only about 8 or 15 watts of drive power

• Two menu selectable ranges for input power, accommodates mobile and handheld transceivers

• Alphanumeric LCD display for various measurements, user configuration and error conditions

• Output power (FM) selectable between three user programmable levels

• Selectable FM or SSB/CW modes with key-up delay and PEP metering

• Multiple protection features: high drive, high SWR, high/low DC voltage, high temperature

• Automatic Level Control (ALC) for output power regulation and high SWR protection

• Individual DC current sensing and limiting of each sub-amplifier

• Receiver Low Noise Amplifier (LNA) with a bandpass filter to prevent blocking by HF signals

• Two elegant, thermostatically controlled fans

• RF sense or PTT keying input (menu selected)

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Toptek PA-350V Specifications:

• Frequency range: 135 MHz – 165 MHz (refer to performance curves in the manual)

• RF Output Power
• FM mode: User programmable/selectable between 20 and 360 W
• SSB mode: 0 to 360 W max. PEP (set by transceiver output)
• RF Input Power
• User Selectable: 15 Watt Max./ 30 Watt Max.
• Typical Input Power required to achieve selectable FM Output Power, 145 MHz typical (15W/30W ranges):
• 100 W (1.1W/ 2.3W)
• 200 W (2.4 W/ 5.0 W)
• 300 W (5.0 W/10.5 W)
• 350 W (7.5 W/ 16 W)

• Mode: Selectable FM or SSB

• RF Bypass Maximum: 50 Watts

• Bypass Insertion Loss: Typ. 0.35 dB @ 145 MHz

• RX Preamplifier Gain: typ. 20 dB @ 145 MHz

• Supply Voltage: 13.8 VDC**, Minimum: 10.5 VDC, Maximum: 14.5 VDC

• Supply Current at 350 W output (145MHz): 48 A continuous, 54 A Peak, max.

• External PTT Keying Connector: 3.5mm female stereo (1/8 in. TRS jack: ground Tip for PTT)

• RF Connectors: Type N female (50 ohm, low loss)

• Rear panel jack (4-pin mini-DIN) is provided for the accessory Remote Control Panel, TEK-REMOTE

• Dimensions, w/o connectors (WHD): 7.250 x 3.545 x 13.780 in. (184 x 90 x 350 mm)

• Weight: 6.6 lbs. (3 kg)

* Refer to performance curves in the user manual

** Lower voltage will limit amplifier maximum power; required external DC power supply not included