Generating 100 Watts of output from as little as 5 Watts of input, the Model 418 Amplifier raises the bar for reliable and efficient recreational, emergency, and even contest communications.
TEN-TEC Engineers have utilized state of the art, silicon MOSFET technology to allow continuous 100% duty cycle operation in both CW and SSB modes. The model 418 is also compliant with AM, FM, AFSK, and PSK modes of operation. This amplifier also offers full QSK CW keying plus hot switching protection.
Measuring only 3.625" X 6.5" X 7.6" inches and weighing just 5.4 lbs, the Model 418 will operate from any 13.8VDC (+/- 15%), 20 Amp power source.
Designed to interface with the new TEN-TEC Model 539 QRP Transceiver, the Model 418 amplifier can be easily connected to most low power transmitter designs (1 to 20 Watts). The amplifier's comprehensive User's Manual and TEN-TEC's industry standard Technical Support department make set up quick and easy.
The Model 418 can switch bands automatically or manually. It also has a two position manual antenna switch. Bypass operation allows low power operation until higher power is needed. RF Sensing will automatically switch bands for you when the 418 is keyed with other rigs and the delta button is turned off.
The Model 418's large LCD front panel readout gives the operator essential information about Output Power, SWR, Operating Voltage, and even Operating Temperature.
Posted by VE7IG on 10th Sep 2012
Just wanted to pass back to you that I received the 418 amplifier and it interfaced with the KX3 and my Alpha 8410 perfectly with no hot switching or any other problems, keying both the 418 and the Alpha from the KX3 keying line direct. I really appreciate the ATTN available which lets me use 5 watts output on the KX3 instead of the 1.7 watts without attenuation and sometimes the 418 would give me higher power out on peaks and would overdrive the Alpha on the low power setting. With the ATTN switched in this is not a problem at all. Everything else about the 418 is completely plug and play. A beautiful little amp and I hope you sell a thousand of them!
73 Reg, VE7IG