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<p>Os chineses fabricam montes de transístores de potência para RF e não os sabem aplicar nos próprios rádios?<br>
Não fazer TX em AM tolera-se, agora só 10W de emissão? Nem que custe só 100?...<br>
<br>
73 de CT7AHV<br>
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<p>Quoting pmafer <<a href="mailto:pmafer@gmail.com">pmafer@gmail.com</a>>:</p>
<blockquote style="border-left: blue 2px solid; padding-left: 8px; margin-left: 8px" type="cite">
<div dir="ltr">Não tem tx em AM, portanto não interessa...</div>
<div class="gmail_extra"><br>
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<div class="gmail_quote">On Wed, Nov 6, 2013 at 1:37 PM, João Costa > CT1FBF <span dir="ltr"><<a href="mailto:ct1fbf@gmail.com" target="_blank">ct1fbf@gmail.com</a>></span> wrote:<br>
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<h3>KN-920</h3>
<img alt="A picture of KN-920" border="0">
<h4>SPECIFICATIONS</h4>
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<td><strong>GENERAL</strong></td>
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<tr bgcolor="#FFFFCC">
<td><strong>Type:</strong></td>
<td>Amateur HF transceiver</td>
</tr>
<tr>
<td><strong>Frequency range:</strong></td>
<td><strong>TX: 10-80 m + WARC</strong><br>
3.500-3.999 MHz<br>
7.000-7.300 MHz<br>
10.100-10.150 MHz<br>
14.000-14.350 MHz<br>
18.068-18.168 MHz<br>
21.000-21.450 MHz<br>
24.890-24.990 MHz<br>
28.000-29.700 MHz<br>
<strong>RX: 0.03-30 MHz</strong></td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Tuning steps:</strong></td>
<td>? KHz</td>
</tr>
<tr>
<td><strong>Mode:</strong></td>
<td>TX: FM/SSB/CW<br>
RX: AM/FM/SSB/CW</td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Memory channels:</strong></td>
<td>100 regular</td>
</tr>
<tr>
<td><strong>Power supply:</strong></td>
<td>13.8 VDC</td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Current drain/power consumption:</strong></td>
<td>RX: 700 mA<br>
TX: Max 4 A</td>
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<tr>
<td><strong>Antenna impedance/connector:</strong></td>
<td>50 ohms / SO-239</td>
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<tr bgcolor="#E6E6E6">
<td><strong>Dimensions (W*H*D):</strong></td>
<td>230*90*230 mm</td>
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<td><strong>Weight:</strong></td>
<td>3.5 Kg</td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Other features:</strong></td>
<td>SWR-meter. USB conector. Built-in keyer and ATU</td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
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<td><strong>RECEIVER SECTION</strong></td>
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<tr bgcolor="#E6E6E6">
<td><strong>Receiver system:</strong></td>
<td><strong>Double conversion superheterodyne (AM/SSB/CW)</strong><br>
1st IF: 45 MHz<br>
2nd IF: 12 MHz<br>
<strong>Triple conversion superheterodyne (FM)</strong><br>
1st IF: 45 MHz<br>
2nd IF: 12 MHz<br>
3rd IF: 455 KHz</td>
</tr>
<tr>
<td><strong>Sensitivity:</strong></td>
<td>AM: 1 uV (10 dB S/N)<br>
FM: 0.2 uV (12 dB SINAD)<br>
SSB/CW: 0.2 uV (10 dB S/N)</td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Selectivity:</strong></td>
<td>AM: 6 KHz (-6 dB)<br>
SSB: 2.4 KHz (-6 dB), 3.6 KHz (-40 dB)</td>
</tr>
<tr>
<td><strong>Image rejection:</strong></td>
<td>70 dB</td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>AF output power/speaker:</strong></td>
<td>? W at ?% distortion / ? ohms</td>
</tr>
<tr>
<td><strong>External speaker connector:</strong></td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td><strong>TRANSMITTER SECTION</strong></td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>RF output power:</strong></td>
<td>1-10 W (Can be modified to max 20 W)</td>
</tr>
<tr>
<td><strong>Modulation system:</strong></td>
<td> </td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Max FM deviation:</strong></td>
<td>±? KHz</td>
</tr>
<tr>
<td><strong>Spurious emissions:</strong></td>
<td>Less than -? dB</td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Microphone connector/impedance:</strong></td>
<td>8-pin / ? ohms</td>
</tr>
<tr>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
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<td><strong>MISCELLANEOUS</strong></td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Manufactured:</strong></td>
<td>China, 2013-201x</td>
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<tr>
<td><strong>Additional info:</strong></td>
<td> </td>
</tr>
<tr bgcolor="#E6E6E6">
<td><strong>Related documents:</strong></td>
<td> </td>
</tr>
<tr>
<td><strong>Modifications:</strong></td>
<td> </td>
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<tr bgcolor="#E6E6E6">
<td><strong>Options/Accessories:</strong></td>
<td>
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<td width="70">-</td>
<td>-</td>
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</td>
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</tbody>
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<img alt="A rear picture of KN-920" border="0"></td>
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<br>
_______________________________________________<br>
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<a href="mailto:CLUSTER@radio-amador.net">CLUSTER@radio-amador.net</a><br>
<a href="http://radio-amador.net/cgi-bin/mailman/listinfo/cluster" target="_blank">http://radio-amador.net/cgi-bin/mailman/listinfo/cluster</a><br>
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