INTRODUCTION:
It is with great satisfaction that M2 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 2M1K2 utilizes the new FreescaleTM 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%!
FEATURES:
By now you may realize that there is a lot more in this amplifier package than just a 1.2 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 han-dling 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.
• 100 watt input attenuator that reduces your input power to safe drive levels.
SPECIFICATIONS:
Model …………………………………………. 2M-1K2
Frequency Range …………………………. 144-148 MHz
Power Out ……………………………………. 1200 W PEP @ 50 W
Drive Drive Input (Max Output) …….. 50 W
Drive Input (Absolute Max) …………… 75 W
Modes …………………………………………. SSB, CW, JT65, FM AM
Duty Cycle in JT, FM or AM…………… 40% (45 sec. on, 75 sec. off)
Efficiency……………………………………… 65-80%
Power Requirements:
DC ………………………………………………. 48-50 VDC @ 40 A
AC ………………………………………………. 180-264 VAC, 47-63 Hz, 15 A max (w/built in PS)
Spurious Emission ……………………….. >60 dB below mean power of fundamental frequency Input/Output
Connectors ………………………………….. Type N female, Teflon® insulated
Preamp Relay Voltage (out) …………… 13.6 VDC @ .5 A
External Relay Control ………………….. N.O. contacts, rated @ 250 mA
Keying………………………………………….. Key-to-Ground, RCA Jack. 10mA max current draw
Protection……………………………………… Temp Controlled Fans (2)
…………………………………………………….. SWR Shutdown (>2.5:1)
………………………………………………………Over Temp Shut Down (> 90° C)
Operating Temps …………………………… -20° to 40° C
Size (W/Power Supply) …………………… 7.1 x 9.5 x 13.5 in (181 x 242 x 343 mm)
Weight (W/Power Supply)……………….. 20.5 lbs (9.3 kg)
Size (Amp Only)……………………………….7.1 x 6.5 x 13.5 in (181 x 216 x 343 mm)
Weight (Amp Only) ………………………… 13.5 lbs (6.1 kg)
Price: $2,995.00USD