<div dir="ltr"><div dir="ltr"><br></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Feb 23, 2019 at 9:29 AM Barry Martin <<a href="mailto:barry3martin@gmail.com">barry3martin@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p style="margin-bottom:0in;line-height:100%">Hi Allen!</p>
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<pre class="gmail-m_-5487280715252053102moz-quote-pre">I looked at the specs on the 1609 and there is nothing useful there so you
just have to try it I guess.
If the tuner doesn't work, try a high gain antenna. Try different
directions. You might find a reflected path that is strong and doesn't have
trees in the way.
Good luck. I would be interested to see how works out.</pre>
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<p> </p>
<p style="margin-bottom:0in;line-height:100%">It will be a little
while before I put together the new Backend – hopefully in the
Spring. I know can add the 1609 to the current Backend, due to the
aging of that motherboard I prefer to start fresh.</p>
<p style="margin-bottom:0in;line-height:100%">And if I may pick
your brain again, what is considered a ‘high gain antenna’? One
I am currently using is an AntennasDirect DB2E; from the data
sheet:</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">Performance Data:</p>
<p style="margin-bottom:0in;line-height:100%"> Peak Gain:
11.8
dBi @ 698 MHz</p>
<p style="margin-bottom:0in;line-height:100%"> VSWR:
3.0 Max 470
MHz to 698 MHz</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">Next section lists
‘Boresight Gain’ (whatever that is)<br>
</p>
<p style="margin-bottom:0in;line-height:100%"> 470 MHz
9.06 dBi</p>
<p style="margin-bottom:0in;line-height:100%"> 546
9.92</p>
<p style="margin-bottom:0in;line-height:100%"> 622
10.9</p>
<p style="margin-bottom:0in;line-height:100%"> 698
11.73</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">Local stations:</p>
<p style="margin-bottom:0in;line-height:100%">WHBF “ 4”
RF 4 69 MHz (midpoint) Bettendorf Ant.Farm
(3 mi)</p>
<p style="margin-bottom:0in;line-height:100%">KWQC “ 6” RF
36 605 MHz 1000 KW ERP Orion Ant. Farm (18 mi)</p>
<p style="margin-bottom:0in;line-height:100%">WQAD “ 8” RF
38 617 MHz 1000 KW ERP Orion Ant. Farm (18 mi)</p>
<p style="margin-bottom:0in;line-height:100%">KLJB “18”
RF
49 683 MHz 1000 KW ERP Orion Ant. Farm (18 mi)</p>
<p style="margin-bottom:0in;line-height:100%">WQPT “24” RF
23 527 MHz 80 KW ERP Orion Ant. Farm (18 mi)</p>
<p style="margin-bottom:0in;line-height:100%">KQIN “36”
RF
35 599 MHz 368 KW ERP Orion Ant. Farm (18 mi)</p>
<p style="margin-bottom:0in;line-height:100%"><br>
</p>
<p style="margin-bottom:0in;line-height:100%">Ignoring the VHF
station which I could probably use a wet toothpick as an antenna
in
general the weakest station (WQPT) I have the most problem
receiving;
the highest frequency station (KLJB) also can give lots of
pixelation. Again the windier it is the higher the probability of
a
chopped-up recording. </p>
<p style="margin-bottom:0in;line-height:100%">I’m not expecting
a definitive answer but perhaps you or someone sees something I
don’t
because I don’t have the training and so give guidance. As Dad
said, I know enough to be dangerous! <g></p>
<p style="margin-bottom:0in;line-height:100%">Thanks again!</p>
<p style="margin-bottom:0in;line-height:100%">Barry</p></div></blockquote><div><br></div><div>The performance of that antenna for WHBF is probably close to your wet noodle which is probably a good thing as it is so close and could otherwise overload any preamp. This antenna has about 10dB gain where you care and is similar to the Winegard I linked. If it meets those specs it is probably fine. That same company makes a DB4 which has about 14dB gain. The boresight bain is the gain on axis so where your antenna is pointing.</div><div><br></div><div>Did you say the antennas are in the attic? There is a trend around here to have roofing plywood with aluminum on it. If you have that definitely move the antenna up on the roof. You would also benefit by adding height so if I followed this thread correctly I would get a pole and chimney mount or post mount and get the thing out of the attic.</div><div><br></div><div>Allen</div><div><br></div></div></div>