Re: Loss of VHF Sensitivity

"John Kintz [email protected] [UnidenBC780XLT]" <[email protected]> Sat, 26 Mar 2016 12:57:05 -0400
Newsgroups gmane.recreation.radio.hardware.uniden.bc780xlt
Message-ID <[email protected]>
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I'm not aware of any particular shortcomings of the '780.  For what it's 
worth, the two I own are pretty long in the tooth and both are still 
working well.  If it has been a 'long time' since last used, is it 
possible that something in the shack (or nearby) is affecting the '780 
front end.  Move the '780 to another location (far away) to see if there 
is any improvement.

John AC4JK


On 3/26/2016 12:12 PM, [email protected] [UnidenBC780XLT] wrote:
>
> Hi..
>
> Just notices my 780 XTL is not receiving well, certainly not on VHF . 
> This post may be premature, as I have not started detailed 
> troubleshooting, but I have the gut feeling (due to similar front end 
> problems in other radios) that some near-by Lightning or RF has taken 
> out the front end.
>
>
> Air band/BC FM  "seems" ok, although weaker signal strength than I 
> would normally expect ( Its been a long time since I have used the 
> 780) , UHF and higher seem ok...but that's in just flipping 
> through....I have to do more detail testing.
>
>
> Before I go on a tangent, is the VHF front end pre-amp, or any BPF 
> known to be a common  repair item on the 780? I will check usual RF 
> connection to C.B. problems etc, but I doubt that is it...
>
>
> I will report back, but any heads-up on sensitivity issues for the 780 
> would be appreciated.
>
>
> Archive search didnt find any past posts
>
>
> thx
>
>  Gregtheham
>
>


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    <div class="moz-cite-prefix">I'm not aware of any particular
      shortcomings of the '780.  For what it's worth, the two I own are
      pretty long in the tooth and both are still working well.  If it
      has been a 'long time' since last used, is it possible that
      something in the shack (or nearby) is affecting the '780 front
      end.  Move the '780 to another location (far away) to see if there
      is any improvement.<br>
      <br>
      John AC4JK<br>
      <br>
      <br>
      On 3/26/2016 12:12 PM, <a class="moz-txt-link-abbreviated" href="mailto:[email protected]">[email protected]</a> [UnidenBC780XLT] wrote:<br>
    </div>
    <blockquote cite="mid:[email protected]" type="cite"> <span> </span>
      
          <div id="ygrp-text">
            <p><span>Hi..</span></p>
            <p><span>Just notices my 780 XTL is not receiving well,
                certainly not on VHF . This post may be premature, as I
                have not started detailed troubleshooting, but I have
                the gut feeling (due to similar front end problems in
                other radios) that some near-by Lightning or RF has
                taken out the front end.</span></p>
            <p><br>
              <span></span></p>
            <p><span>Air band/BC FM  "seems" ok, although weaker signal
                strength than I would normally expect ( Its been a long
                time since I have used the 780) , UHF and higher seem
                ok...but that's in just flipping through....I have to do
                more detail testing.</span></p>
            <p><br>
              <span></span></p>
            <p><span>Before I go on a tangent, is the VHF front end
                pre-amp, or any BPF known to be a common  repair item on
                the 780? I will check usual RF connection to C.B.
                problems etc, but I doubt that is it...<br>
              </span></p>
            <p><br>
              <span></span></p>
            <p><span>I will report back, but any heads-up on sensitivity
                issues for the 780 would be appreciated.</span></p>
            <p><br>
              <span></span></p>
            <p><span>Archive search didnt find any past posts<br>
              </span></p>
            <p><br>
              <span></span></p>
            <p><span>thx</span></p>
            <p><span> Gregtheham</span></p>
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