<html><head><meta http-equiv="Content-Type" content="text/html charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I recently purchased a Valley Enterprises RPC-IV8-UF cable (Icom USB OPC-478 FTDI), installed the driver and CHIRP; however, no matter what I do I cannot get the radio to download to my iMac. Here are some specifics:<div><br></div><div>Mac OS 10.8.3</div><div>CHIRP (vers. 0.3.1)</div><div>GTK 2024010</div><div>PyGTK 2.22.0</div><div>Python 2.7.2</div><div><br></div><div>I click <i><b>Download from Radio</b></i> from the <i><b>Radio</b></i> pull down menu. Then I select: <b>/dev/cu.usbserial-AH01D7KW</b>, <b>Icom</b> and <b>IC-T70</b> in the radio window. After clicking <b>OK</b>, some sort of cloning window flashes briefly on the screen and the error message, <b>Failed to communicate with the radio: Unexpected response from radio</b> appears. Also, at this time both the green and red LEDs on the cable flash once.</div><div><br></div><div>I get the same response regardless of whether the radio is ON or OFF. If the cable is not connected, I get a different error message, <b>could not open port /dev.....</b>, which makes sense.</div><div><br></div><div>Right now I'm suspecting a bad cable or something wrong with my HT. By the way, I can get the HT into the cloning mode manually, but that had no effect one way or the other. The HT appears to be working normally in all other aspects.</div><div><br></div><div>I'd like to know, first of all, what pin is what on the cable's 3.5mm radio plug, and secondly, is there anything else that could possibly be wrong that I can/should check?</div><div><br></div><div>Thanks,</div><div>Vince</div></body></html>