LINEAR AMPLIFIERS MADE IN THE UK

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Linear Amp Gemini 70 432MHz 300W Solid State Linear Amplifier

Gemini_70 - 432MHz 300W Linear Amplifier
  • Solid state design
  • 300W output
  • Integral 50V Linear Power supply
  • Drive requirements 3-25W
  • Advanced cooling for MGM operation
  • Full protection for overdrive/swr/temperature
  • Switchable preamp supply
  • All aluminium chassis
  • Compact dimensions - just 270w x 300d x 120h mm
  • UK Manufactured by us here on the Welsh Borders

Designed, manufactured and assembled entirely the UK, the all new GEMINI linear amplifier is a solid state linear amplifier with 300W output available in 6/4m 2m and now 70cms versions.
Designed to fill a market gap between the low power outputs of transverters and smaller rigs and the 1kW plus amplifiers that not all users want or can afford the Gemini range combines low drive requirements with instant on solid state performance in a compact stylish package.

With an RF section designed exclusively for us by Chris Bartram GW4DGU (of Mutek fame) Gemini uses the latest Freescale MRFE6VP6300HR3 LDMOS device for high performance and maximum ruggedness. This, combined with built in protection for overdrive, High SWR and Over Temperature ensures solid reliable performance at high outputs for long periods.

The 432MHz Gemini 70 also incorporates a front panel switchable 13.8v preamplifier supply on receive. This can be selected by the operator to be either an output voltage on the rear panel or a bias tee feed as required.

Furthermore GEMINI is a complete turnkey solution incorporating a complete 50V linear power supply so no external PSU is required.

Specifications

Frequency coverage 430-440MHz
Power output @ 1dB compression 280W
Power output @ -30dB IMD3 >250W
Input power

3-20W (specified when ordered)

Spurious outputs <-70dB wrt 300W
Input return loss >20dB
Efficiency (RF) >60%
RF Device 1 x Freescale MRFE6VP6300H
Protection Overdrive, SWR, Over Temperature
Relays Coaxial Output and Input
Metering RF output
Power requirements 230V AC  50/60Hz


Gemini UK 144MHz 300W solid state amplifier internal view

Linear Amp Gemini 4 70MHz solid state amplifier rear view

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