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<body class='hmmessage'><div dir='ltr'><font style="" color="#000000" face="Tahoma,sans-serif">I doubt there would be any problem at the 1/2W or 1W level without an amplifier but if you do use one I would be careful on the other hand an amplifier just might improve the situation if it had high Q filtering on the output. Only testing will tell. Many would use these on a dummy load or a minimal indoor antenna for limited range in a local node situation.<br id="FontBreak"></font><br><b><font style="font-size:16pt;" size="4">73 Doug</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4">WA3DSP</font><font style="font-size:16pt;" size="4"><br></font><font style="font-size:16pt;" size="4">http://www.crompton.com/hamradio</font></b><font style="font-size:16pt;" size="4"><br></font><br><br><div><hr id="stopSpelling">From: ssedgwick@suddenlink.net<br>To: arm-allstar@hamvoip.org<br>Date: Fri, 28 Nov 2014 14:22:53 -0600<br>Subject: [arm-allstar] DRA818V VHF Band Voice Transceiver Module and DRA818U UHF Band Voice Transceiver Module<br><br>
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<div>Hi David,</div>
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<div>I’m sure a LPF will be needed to meet FCC requirement in the US. This
is based on the results from the website (needs to be translated, I used Chrome)
<a title="http://www.ra3apw.ru/proekty/dra818v/" href="http://www.ra3apw.ru/proekty/dra818v/" target="_blank">http://www.ra3apw.ru/proekty/dra818v/</a>
. This website was based on the DRA818V, but it looks the same as the
SA-818 so I would expect the same results. My first test will be on a
dummy load, hihi</div>
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<div>73,</div>
<div>Steve_WB8GRS</div>
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<div> </div><pre style="WHITE-SPACE:pre-wrap;WORD-SPACING:0px;TEXT-TRANSFORM:none;COLOR:;LETTER-SPACING:normal;LINE-HEIGHT:normal;TEXT-INDENT:0px;"><font face="Calibri">Hi Chris & Everyone!
First, Happy Thanksgiving!
Has anyone out there taken a look at the transmitted spectrum from either
of these modules to confirm they meet FCC specs??? As small as they are, I
can't imagine there is any low-pass filtering, etc., that is part of the
module.
...Just wondering!
73, David KB4FXC</font></pre></div></div>
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