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My guess is someone added this to you radio. I don't think the 303
ever had a noise blanker. There was a QST article to add the SB104
noise blanker...and it works very well (I have one). Perhaps someone
did that to yours, and then removed the board...or never finished
the mod???<br>
....Dave<br>
<div class="moz-cite-prefix">On 3/13/14, 1:06 PM,
<a class="moz-txt-link-abbreviated" href="mailto:pbrickey@verizon.net">pbrickey@verizon.net</a> wrote:<br>
</div>
<blockquote
cite="mid:4647788.691071.1394730396973.JavaMail.root@vznit170080"
type="cite">
<pre wrap="">Hi,
My SB-303 has a Noise Blanker control in place of the RF attenuator control, but the noise blanker board is missing. Does anybody have an idea of why Heathkit eliminated the noise blanker and substituted the RF attenuator? Anyone have a SB-303 noise blanker board?
73's,
Peter
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