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A little bit of more information:

The PC interface is a 3.5mm stereo serial interface, similar in design to several other rigs.

Wayne from Elecraft also mentioned that, "The MOSFET 10-W amp stage includes an output transformer with both 1:4 and 1:1 windings. When using low power, or when running from internal batteries, the 1:1 winding is used, which optimizes efficiency at
about 5 W, greatly reducing transmit current drain. The 1:4 winding is
used when running higher power (using an external supply)."

The radio itself weighs 1.5 pounds and puts out 10+ watts. To achieve 100 watts, the radio actually uses a separate 100 watt amp, which will also have an antenna tuner built in (might be an option). The amplifier will work with any QRP radio. (like the Yaesu FT-817, for example).

<blockquote data-quote="Moleculo" data-source="post: 285780" data-attributes="member: 1">A little bit of more information:The PC interface is a 3.5mm stereo serial interface, similar in design to several other rigs.&nbsp; Wayne from Elecraft also mentioned that,&nbsp; &quot;The MOSFET 10-W amp stage includes an output transformer with both 1:4 and 1:1 windings. When using low power, or when running from internal batteries, the 1:1 winding is used, which optimizes efficiency atabout 5 W, greatly reducing transmit current drain. The 1:4 winding isused when running higher power (using an external supply).&quot;The radio itself weighs 1.5 pounds and puts out 10+ watts. To achieve 100 watts, the radio actually uses a separate 100 watt amp, which will also have an antenna tuner built in (might be an option).&nbsp; The amplifier will work with any QRP radio. (like the Yaesu FT-817, for example).</blockquote>

[QUOTE="Moleculo, post: 285780, member: 1"] A little bit of more information: The PC interface is a 3.5mm stereo serial interface, similar in design to several other rigs. Wayne from Elecraft also mentioned that, "The MOSFET 10-W amp stage includes an output transformer with both 1:4 and 1:1 windings. When using low power, or when running from internal batteries, the 1:1 winding is used, which optimizes efficiency at about 5 W, greatly reducing transmit current drain. The 1:4 winding is used when running higher power (using an external supply)." The radio itself weighs 1.5 pounds and puts out 10+ watts. To achieve 100 watts, the radio actually uses a separate 100 watt amp, which will also have an antenna tuner built in (might be an option). [B]The amplifier will work with any QRP radio.[/B] (like the Yaesu FT-817, for example). [/QUOTE]

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