IIRC, the PRT-4/A had two channels, one fixed at 450 mW and the other (depot) variable from 50 - 250 mW. Maybe the poorly-performing TXs were on low power. But yes, they reportedly weren't widely deployed due to their poor performance under field conditions.&nbsp;<div><br></div><div>And speaking of Capt. Powell, in his autobiography My American Journey, he recounts the story of his first field assignment in Vietnam. He was the USA officer in charge of a helicopter landing base. When he asked his Vietnamese non-comm officer what their mission was, he was told they were to protect the helicopters when they landed during supply deliveries. Kinda sounds like a self-eating watermelon, if you ask me.</div><div><br></div><div>73 de&nbsp;</div><div>Gene Smar AD3F&nbsp;</div><div><br><div><br><div id="ymail_android_signature">Sent from my Radio Shack TRS-80 model 100 laptop</div> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Fri, Mar 22, 2024 at 6:48 PM, MARK DORNEY via MRCA</div><div>&lt;mrca@mailman.qth.net&gt; wrote:</div> </div> <div style="padding: 10px 0 0 20px; margin: 10px 0 0 0; border-left: 1px solid #6D00F6;"> ______________________________________________________________<br clear="none">MRCA mailing list<br clear="none">Home: <a shape="rect" href="http://mailman.qth.net/mailman/listinfo/mrca" target="_blank">http://mailman.qth.net/mailman/listinfo/mrca</a><br clear="none">Help: <a shape="rect" href="http://mailman.qth.net/mmfaq.htm" target="_blank">http://mailman.qth.net/mmfaq.htm</a><br clear="none">Post: mailto:MRCA@mailman.qth.net<br clear="none"><br clear="none">This list hosted by: <a shape="rect" href="http://www.qsl.net" target="_blank">http://www.qsl.net</a><br clear="none">Please help support this email list: <a shape="rect" href="http://www.qsl.net/donate.html" target="_blank">http://www.qsl.net/donate.html</a> </div> </blockquote></div></div>