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Reviews Categories | Amplifiers: RF Power - 6M/VHF/UHF+ | Linear Amp Gemini 2 1.2kw Help


Reviews Summary for Linear Amp Gemini 2 1.2kw
Linear Amp Gemini 2 1.2kw Reviews: 1 Average rating: 5.0/5 MSRP: $1,899 sterling inc of tax
Description: The all new Gemini 2-1.2K is a solid state 1200W CW output Linear Amplifier for 144-148Mhz.
The Gemini 2-1.2K has been designed from the start with high duty cycle usage in mind. The core of the amplifier is dominated by a 7.5Kg aluminium heatsink cooled by three temperature controlled fans. In testing we have left it sat on the bench at 1kW output continuously for 30 minutes plus without reaching thermal cutout temperatures so it is ideal for dedicated EME / MS / FSK / JT mode users and contesters.
The Integral Power Supply units will accept 100-260V Mains Input so the unit can be used worldwide without any modifications.
Specifications are:
Max output 1200W 144-148Mhz
P1dB 1000W output
Spurious outputs <60dB wrt 1000W
Input R/L >15dB
Drive levels 2.5-20W specified at purchase
Built in sequencer and Bias T feed for masthead preamplifiers
Protection for Overdrive/SWR/Over Temperature
RX Insertion Loss <0.25dB
Overall efficiency at 1kW output >70%.
RF output meter
RF Device 1 x BLF188XR LDMOS **
Power requirements 100-260V 50-60Hz
Dimensions 315mm wide x 180mm high x 360mm deep
Weight 14,5Kg
Made in the UK.
The Gemini 2-1200 is really quiet in operation. Changeover relays are quiet. Fans only run when they need to and are controlled by our own PIC fan controller giving stepless speed control proportional to temperature.
Product is in production.
More info: http://https://www.thedxshop.com/linear-amp-uk-linear-amplifiers/linear-amp-vhf-uhf-amplifiers/gemini-2-1-2k-1200w-144mhz-solid-state-linear-amplifier.html
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You can write your own review of the Linear Amp Gemini 2 1.2kw .

GW0GEI Rating: 5/5 Aug 3, 2017 10:33 Send this review to a friend
First user review  Time owned: 0 to 3 months
Following my very positive experience with the smaller 4/6m version of this solid state amplifier, I pre ordered one of the first production models of the new high power 2m versions earlier this year. The amp was delivered on time and well packaged, and is the same quality and quiet product as its smaller version. I am initially driving it with an ft817nd and specified 5w drive power on ordering, so I can drive it with 0.5w on low power (giving around 200w) or 2.5w on medium power from the radio, yielding me legal limit 400w effortlessly at the antenna. Into a dummy load the max drive of 5w from the radio is getting 1.2kw+ out from a measured 4.7w of drive on both ssb and cw. Lovely constructed amp and it can also deliver voltage to a masthead pre amp with a switch on the front panel. Another great amp from Linear Amp which is proving to be very useful in getting people to turn their beams out here to the west coast of uk:-)
 


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