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-<table class="head">
-  <tr>
-    <td class="head-ltitle">SF2R(4)</td>
-    <td class="head-vol">Device Drivers Manual</td>
-    <td class="head-rtitle">SF2R(4)</td>
-  </tr>
-</table>
-<div class="manual-text">
-<section class="Sh">
-<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
-<p class="Pp"><code class="Nm">sf2r</code> &#x2014; <span class="Nd">SoundForte
-    RadioLink SF16-FMR2 FM radio device driver</span></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
-<p class="Pp"><code class="Cd">option RADIO_TEA5759</code></p>
-<p class="Pp">
-  <br/>
-  <code class="Cd">sf2r0 at isa? port 0x384</code>
-  <br/>
-  <code class="Cd">radio* at sf2r0</code></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
-<p class="Pp">The <code class="Nm">sf2r</code> driver provides support for the
-    SF16-FMR2 FM radio tuners.</p>
-<p class="Pp">The SF16-FMR2 is a stereo FM tuner that allows to tune in the
-    range 87.5 - 108.0 MHz, report signal status on the current frequency, force
-    audio output to mono, perform hardware signal search, and has an internal
-    AFC.</p>
-<p class="Pp">The SF16-FMR2 cards take only one I/O port. The I/O port is set by
-    the driver to the value specified in the configuration file and must be
-    0x384.</p>
-<p class="Pp">Philips Semiconductors released two almost identical chips TEA5757
-    and TEA5759. The TEA5757 is used in FM-standards in which the local
-    oscillator frequency is above the radio frequency (e.g. European and
-    American standards). The TEA5759 is the version in which the oscillator
-    frequency is below the radio frequency (e.g. Japanese standards). The option
-    <var class="Va">RADIO_TEA5759</var> changes the algorithm of frequency
-    calculation for the TEA5757 based cards to conform with the Japanese
-    standards.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
-  ALSO</a></h1>
-<p class="Pp"><a class="Xr">isa(4)</a>, <a class="Xr">radio(4)</a></p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
-<p class="Pp">The <code class="Nm">sf2r</code> device driver appeared in
-    <span class="Ux">OpenBSD 3.0</span> and <span class="Ux">NetBSD
-  1.6</span>.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
-<p class="Pp">The <code class="Nm">sf2r</code> driver was written by
-    <span class="An">Vladimir Popov</span> and <span class="An">Maxim
-    Tsyplakov.</span> The man page was written by <span class="An">Vladimir
-    Popov</span>.</p>
-</section>
-<section class="Sh">
-<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
-<p class="Pp">MediaForte made two variants of the SF16-FMR2 cards, the first one
-    has an internal amplifier of the output sound, the second one does not have
-    such an amplifier. The current driver supports only the second variant.</p>
-</section>
-</div>
-<table class="foot">
-  <tr>
-    <td class="foot-date">August 25, 2020</td>
-    <td class="foot-os">NetBSD 10.1</td>
-  </tr>
-</table>