M2 ANTENNA SYSTEMS INC. 6M-1K2 User Manual

 

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It is with great satisfaction that M

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 now offers a true breakthrough in high power VHF amplifiers.  Our goal has always 

been to offer the most carefully designed, high performance antenna products.  Now we offer the same high performance 

in VHF amplifiers.  The 6M-1K2 and the 2M-1K2 utilize the new Freescale™ LD MOS FET (MRFE6VP6IK25H),  a  single    
device specified to produce 1.25 kW with as little as 3 watts of drive from HF to 600 MHz. This is amazing in itself, but 

adding its inherent stability driving that power into a 65:1 mismatch is equally incredible.  It can do all this at efficiencies 

well above 60%!  

 

 
Here is where M

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 comes in.  We wanted to make it small and we did; 6 x 7.125 x 13.5 inches (152 x 181 x 343 mm) so it 

will fit in a suitcase.  We wanted it to be light and it is at just 13 lbs (5.9 kg).  The optional integrated 2400 watt switching 

power supply adds only another 7.5 lbs to this incredible package that travels easily at 20.5 lbs (9.3 kg).  Additionally, the 

power supply may be purchased as a separate, stand alone accessory. 

 
Now, at home in your shack you won’t need that big steel rack any more.  All you need is a small desktop or shelf to hold 

your QRO (high power) VHF amplifier.    

 

Above all we made this amplifier easy to understand and operate.  The photo below shows the model with the amplifier 

and the power supply integrated together (7.125” wide, 9” high 14” deep). 

By now you may realize that there is a lot more in this amplifier 

package than just a 1.25 kW LDMOSFET.   

 
What you can’t see in pictures is listed proudly below: 

 

•  A complete and accurate high power VSWR bridge. 

•  Regulator PC board with high wattage power resistors and 

two voltage regulators. 

•  Medium power input power coaxial relay. 
•  High power, high speed vacuum relay easily capable of    

handling full output power. 

•  Monitoring via high accuracy DC current and temperature 

monitoring devices. 

•  Sophisticated output RF filter reducing spurious harmonics 

to exceed FCC regulations. 

•  Quiet fan on the bottom cools miniature RF tank and filter 

components.  

•  50 or 100 watt input attenuator that reduces your input 

power to safe drive levels. 

Frescale™ is a registered trademark of Freescale Semiconductor, Inc.