<div dir="ltr">I do not know how your jurisdiction has things programmed, but here, we program our public service radios to send tone and receive open. That practice is also recommended in the NIFOG for the interoperability channels so that an emergency responder does not potentially miss important traffic with an incorrect tone. Tone squelch is then enabled selectively when needed to avoid interference (either by a keypad button or by having multiple versions of the same channel pre-programmed, one with open-squelch and one with tone).<div><br></div><div>So, basically, setting the tone on your end may or may not prevent the emergency responders from hearing your accidental key-up and the key-up may still stomp on a transmission either way (which is why monitor-before-transmit is the rule when using tones). So, I agree with Gary that mic discipline is going to be the better approach and you may still find a way to actually disable transmit on your radio (or CHIRP may eventually solve that problem for you). In practice, the typical e.g. Law Enforcement has less radio training than you do, and, unfortunately, dead keying and other problems on their end are not uncommon, so an occasional mistake likely won't even be noticed :-(</div><div><br></div><div>Another possibility is if your radio or mic has a software or mechanical lock you can enable it while monitoring the PS channels. One of my mics, for instance, has a switch opposite the PTT which will disable the key pad and PTT until it is unlocked. I find this useful in a vehicle where bumps and joggles simply happen during patrols. Keypad locks sometimes lock only the keypad and not the PTT, so your mileage may vary.</div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Nov 14, 2015 at 10:21 AM, Gary Runningbear <span dir="ltr"><<a href="mailto:runningbear2000@gmail.com" target="_blank">runningbear2000@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Of the ham club maybe but that would be my limit.</p><div class="HOEnZb"><div class="h5">
<div class="gmail_quote">On Nov 14, 2015 11:20 AM, "<a href="mailto:dmdfacp@gmail.com" target="_blank">dmdfacp@gmail.com</a>" <<a href="mailto:dmdfacp@gmail.com" target="_blank">dmdfacp@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="auto"><div>Well-stated, Gary. Logical and sensible. </div><div><br></div><div>Want to run for president ?? </div><div><br></div><div>Dave</div><div>K1SIW<br><br><div><span style="font-size:13pt">Sent from my iPhone </span></div><div>DSP</div></div><div><br>On Nov 14, 2015, at 11:15 AM, Gary Runningbear <<a href="mailto:runningbear2000@gmail.com" target="_blank">runningbear2000@gmail.com</a>> wrote:<br><br></div><div><p dir="ltr">Hi Jim, I must say I admire your dedication to protecting the PS frequencies and I think your theory might work but I can't say for sure since I am not familiar with that radio. However, please allow me to say that I think you are overthinking this whole process. Please realize that an accidental key on the PS frequencies would not by any means be considered malicious interference. And since you were intelligent enough to get your ticket in the first place I feel sure that you are intelligent enough to keep track of your mic so that you would not accidentally sit on it like so many police officers do! Lol so after all this I would say program all the PS frequencies you want put the mic in a safe place and enjoy. Have a great day.</p>
<p dir="ltr">Gary<br>
N8GPZ</p>
<div class="gmail_quote">On Nov 14, 2015 9:05 AM, "James Jalbert" <<a href="mailto:kc1ecv@gmail.com" target="_blank">kc1ecv@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">I have done a little more playing, and had a thought. I am new to HAM and still a little gray on somethings, but, if I were to import the PS freqs and set them in the CSV file to use Tone and set the tone to 254.1, if my thought is correct, Tone mode will allow open squelch, so I could still here, but if the mic was keyed it would transmit the 254.1 tone, and not interfere with the Public Service radios as that would not be a tone set for them to receive? Am i looking at this correct?<br></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Nov 12, 2015 at 10:15 PM, Kent Garliepp <span dir="ltr"><<a href="mailto:kent.garliepp@gmail.com" target="_blank">kent.garliepp@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">Hi, <br>
On my Baofeng, I choose 'off' under Duplex.<br>
Kent AF7QO<br>
</p>
<div class="gmail_quote"><span>On Nov 12, 2015 4:31 PM, "Gary Runningbear" <<a href="mailto:runningbear2000@gmail.com" target="_blank">runningbear2000@gmail.com</a>> wrote:<br type="attribution"></span><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><span><p dir="ltr">To James KC1ECV,<br>
You were right my friend about turning duplex to off to kill the transmit. I guess that particular radio can't be affected by that so now I guess you'll have to set a switch in your own mind do not grab the mic while monitoring those PS channels. Sorry to have misled you but that was a learning point for me and it won't happen again. hi hi</p>
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