<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div>Dave,<br></div><div>Assuming a single RPi with 2 interfaces and radios:</div><div dir="ltr">A. UHF full duplex</div><div dir="ltr">B. HF SSB simplex<br></div><div id="yui_3_16_0_1_1455577359627_7760"><br></div><div id="yui_3_16_0_1_1455577359627_7713">Does this parameter (linktolink) get set=YES in ONLY the UHF or both nodes?</div><div id="yui_3_16_0_1_1455577359627_7740"><br></div><div id="yui_3_16_0_1_1455577359627_7768">Note: A simplex UHF to simplex HF would likely be a bad design as the HF COS could go active for long periods do to noise of hf activity.<br></div><div id="yui_3_16_0_1_1455577359627_7700"><br></div><div id="yui_3_16_0_1_1455577359627_7689">Barry w0iy<br></div><div id="yui_3_16_0_1_1455577359627_7688"><br></div><div id="yui_3_16_0_1_1455577359627_7687"><br></div> 1. Re: What does linktolink do??? was: TX Inhibit (David McGough)<br><br><br>Setting linktolink=yes applies to simplex nodes (duplex=0 or duplex=1)<br>ONLY. The major issue that setting linktolink=yes resolves is that it<br>allows the the simplex radio's PTT to be activated by a connected<br>full-duplex node at -any- time, even when the simplex radio's COR<br>signaling is active.<br><br>So, this is useful in several scenarios. First, lets say you've got a <br>remote-base tuned to a local repeater. During an active net, the local <br>repeater might never stop transmitting, keeping the remote-base COR <br>continuously active. Without enabling linktolink, a full-duplex node <br>that's connected to the remote-base can NOT ever cause the remote-base to <br>transmit (PTT is "locked out", COR has priority).<br><br>A second scenario is where you've got a HF rig and you want a linked <br>full-duplex node to trigger the PTT of the HF rig at any time, even while <br>the HF COR signaling is active.<br><br>linktolink is a "have to have" parameter for connecting multiple radio <br>systems over analog RF!<br><br><div id="yui_3_16_0_1_1455577359627_7782" dir="ltr">73, David KB4FXC</div><div id="yui_3_16_0_1_1455577359627_7654"><br></div></div></body></html>