There are a few variants of coupling to 50 ohms with the arc5 series, but they were designed to load short antennas with a resistance of 5 to 12 ohms and 100pf or so.<div>I use a 50 pf TX cap in series with a switchable 1:4 or 1:9 Unum. This allows flexibility to use tbe inductor to tune to the antenna.<br><br><div id="ymail_android_signature"><a id="ymail_android_signature_link" href="https://go.onelink.me/107872968?pid=InProduct&amp;c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&amp;af_wl=ym&amp;af_sub1=Internal&amp;af_sub2=Global_YGrowth&amp;af_sub3=EmailSignature">Sent from Yahoo Mail on Android</a></div> <br> <blockquote style="margin: 0 0 20px 0;"> <div style="font-family:Roboto, sans-serif; color:#6D00F6;"> <div>On Wed, Aug 9, 2023 at 6:31 PM, B. Smith</div><div>&lt;smithab11@comcast.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>