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Hello Jason
<div>I agree with Eric. 40 and 20 minute times indicated a large thermal time constant. Nothing in the 735 has that mass. Power supply’s do (sometimes ) have thar mass.</div>
<div>A735 needs about 17 amps at full power. What is your power supply rated for ?</div>
<div>Bruce </div>
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<div dir="ltr">Sent from my iPhone</div>
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<blockquote type="cite">On Jul 3, 2022, at 8:22 PM, Jim Idelson <jim@k1ir.com> wrote:<br>
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<div dir="auto">This is typical of phase locked loop (PLL) not locking properly. I bet a Google search will turn up some articles and videos on the topic.<br>
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<div data-smartmail="gmail_signature">73 Jim K1IR</div>
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<div dir="ltr" class="gmail_attr">On Sun, Jul 3, 2022, 9:02 AM Jason M. Sanroma - K1NAD <<a href="mailto:K1NAD@sanroma.net">K1NAD@sanroma.net</a>> wrote:<br>
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Hello,
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<div dir="auto">I have an Icom IC-735. It was given to me by my grandfathers friend who happened to be the original owner of the radio. I noticed that after about 40 minutes of TX/RX 20m goes “dead”. The meter is 0 and does not move when I TX or just RX. It
turns back on after about 20-40 minutes. There is also no background static while on RX.</div>
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<div dir="auto">It is obviously heat sensitive but I am not sure why and what is causing it. Does anyone have the same issue? Can anyone help me with an explanation of what it could possibly be?</div>
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<div dir="auto">Thanks for your help.</div>
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<div dir="auto">73,</div>
<div dir="auto">Jason</div>
<div dir="auto">K1NAD</div>
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