<DIV style="font-family:Arial, sans-serif; font-size:10pt;"><FONT size="2">Great idea Keith !</FONT><DIV><FONT size="2"><BR></FONT></DIV><DIV><FONT size="2"><BR></FONT><BR><SPAN style="font-size: 10pt;">--- personal_submersibles@psubs.org wrote:</SPAN><BR><BR><SPAN style="font-size: 10pt;">From: k6fee via Personal_Submersibles <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size: 10pt;">To: Personal Submersibles General Discussion <personal_submersibles@psubs.org></SPAN><BR><SPAN style="font-size: 10pt;">Subject: Re: [PSUBS-MAILIST] coms</SPAN><BR><SPAN style="font-size: 10pt;">Date: Mon, 16 Dec 2019 15:10:14 -0800</SPAN><BR><BR><SPAN style="font-size: 10pt;">500 feet of coax would also have horrendous feed losses @ Vhf frequency. Best would be to put the radio inside the bouy with a fiber optic cable link from the sub. That would eliminate feedline and other losses.</SPAN><DIV style="font-size: 10pt;"><BR></DIV><DIV style="font-size: 10pt;">Keith T.</DIV><DIV style="font-size: 10pt;">K6FEE </DIV><DIV style="font-size: 10pt;"><BR></DIV><DIV style="font-size: 100%; color: rgb(0, 0, 0);"><DIV>-------- Original message --------</DIV><DIV>From: Jon Wallace via Personal_Submersibles <personal_submersibles@psubs.org> </DIV><DIV>Date: 12/16/19 1:48 PM (GMT-08:00) </DIV><DIV>To: Jon Wallace via Personal_Submersibles <personal_submersibles@psubs.org> </DIV><DIV>Subject: Re: [PSUBS-MAILIST] coms </DIV><DIV><BR></DIV></DIV><DIV style="font-size: 16px; font-family: "times new roman", "new york", times, serif;"><DIV></DIV>
<DIV dir="ltr">I think the first thing we need to determine is whether 500 feet of cable is too long for VHF transmission. Also, what effect coiling of the cable would have since in some situations coils of cable are used as baluns.</DIV><DIV dir="ltr"><BR></DIV><DIV dir="ltr">Jon</DIV><DIV dir="ltr"><BR></DIV><DIV><BR></DIV>
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On Monday, December 16, 2019, 04:11:01 PM EST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV dir="ltr">Jon, </DIV><DIV dir="ltr">I was thinking about VHF radio with a 500 plus foot antenna cable to the antenna on the surface. Then a matching radio on the boat.</DIV><DIV dir="ltr">Don't think smoke will be reliable under water haha</DIV><DIV dir="ltr">Hank</DIV><DIV><BR></DIV>
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On Monday, December 16, 2019, 11:22:19 AM MST, Jon Wallace via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV dir="ltr">More info Hank. What kind of comms? Are you wanting to tether ultrasonic comms, some kind of radio like CB, smoke signals? </DIV><DIV dir="ltr"><BR></DIV><DIV dir="ltr">Jon</DIV><DIV><BR></DIV>
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On Monday, December 16, 2019, 10:31:45 AM EST, hank pronk via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV dir="ltr">Alan, good plan, but I am sure someone here has ideas. I am only needing to go 500 feet for my project this summer, so I will start with that and then I can just add to the line as needed.</DIV><DIV dir="ltr">Hank</DIV><DIV><BR></DIV>
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On Monday, December 16, 2019, 7:34:13 AM MST, Alan via Personal_Submersibles <personal_submersibles@psubs.org> wrote:
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<DIV><DIV><DIV><DIV></DIV><DIV>Hank,</DIV><DIV>If you don't get a response here, I would join a ROV group & post on one.</DIV><DIV>They would have that stuff down to a fine art.</DIV><DIV>I have searched ROV group information before.</DIV><DIV>How deep are you wanting to go?</DIV><DIV>Alan</DIV><DIV><BR></DIV><DIV><BR></DIV><DIV><DIV><BR>On 17/12/2019, at 2:51 AM, hank pronk via Personal_Submersibles <<A href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</A>> wrote:<BR><BR></DIV><BLOCKQUOTE><DIV><DIV style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><DIV dir="ltr">Hi All,</DIV><DIV dir="ltr">I am in need of guidance. I want to install coms in E3000 with a tether cable. I can get 4mm ROV tether at a reasonable cost. I always tow a buoy anyways. I need help to figure out how to do this. </DIV><DIV dir="ltr">Hank</DIV></DIV></DIV></BLOCKQUOTE></DIV><BLOCKQUOTE><DIV><SPAN>_______________________________________________</SPAN><BR><SPAN>Personal_Submersibles mailing list</SPAN><BR><SPAN><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A></SPAN><BR><SPAN><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A></SPAN><BR></DIV></BLOCKQUOTE></DIV></DIV><DIV>_______________________________________________<BR>Personal_Submersibles mailing list<BR><A href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</A><BR><A href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</A><BR></DIV></DIV></DIV>
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