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diff --git a/contrib/ntp/html/driver3.htm b/contrib/ntp/html/driver3.htm new file mode 100644 index 0000000..47511d8 --- /dev/null +++ b/contrib/ntp/html/driver3.htm @@ -0,0 +1,131 @@ +<HTML> +<HEAD> + <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> + <META NAME="GENERATOR" CONTENT="Mozilla/4.01 [en] (Win95; I) [Netscape]"> + <TITLE>PSTI/Traconex 1020 WWV/WWVH Receiver +</TITLE> +</HEAD> +<BODY> + +<H3> +PSTI/Traconex 1020 WWV/WWVH Receiver</H3> + +<HR> +<H4> +Synopsis</H4> +Address: 127.127.3.<I>u</I> +<BR>Reference ID: <TT>WWV</TT> +<BR>Driver ID: <TT>WWV_PST</TT> +<BR>Serial Port: <TT>/dev/wwv<I>u</I></TT>; 9600 baud, 8-bits, no parity +<BR>Features: <TT>tty_clk</TT> +<H4> +Description</H4> +This driver supports the PSTI 1010 and Traconex 1020 WWV/WWVH Receivers. +No specific claim of accuracy is made for these receiver, but actual experience +suggests that 10 ms would be a conservative assumption. + +<P>The DIP-switches should be set for 9600 bps line speed, 24-hour day-of-year +format and UTC time zone. Automatic correction for DST should be disabled. +It is very important that the year be set correctly in the DIP-switches; +otherwise, the day of year will be incorrect after 28 April of a normal +or leap year. The propagation delay DIP-switches should be set according +to the distance from the transmitter for both WWV and WWVH, as described +in the instructions. While the delay can be set only to within 11 ms, the +fudge time1 parameter can be used for vernier corrections. + +<P>Using the poll sequence <TT>QTQDQM</TT>, the response timecode is in +three sections totalling 50 ASCII printing characters, as concatenated +by the driver, in the following format: +<PRE>ahh:mm:ss.fffs<cr> yy/dd/mm/ddd<cr> +frdzycchhSSFTttttuuxx<cr> + +on-time = first <cr> +hh:mm:ss.fff = hours, minutes, seconds, milliseconds +a = AM/PM indicator (' ' for 24-hour mode) +yy = year (from DIPswitches) +dd/mm/ddd = day of month, month, day of year +s = daylight-saving indicator (' ' for 24-hour mode) +f = frequency enable (O = all frequencies enabled) +r = baud rate (3 = 1200, 6 = 9600) +d = features indicator (@ = month/day display enabled) +z = time zone (0 = UTC) +y = year (5 = 91) +cc = WWV propagation delay (52 = 22 ms) +hh = WWVH propagation delay (81 = 33 ms) +SS = status (80 or 82 = operating correctly) +F = current receive frequency (4 = 15 MHz) +T = transmitter (C = WWV, H = WWVH) +tttt = time since last update (0000 = minutes) +uu = flush character (03 = ^c) +xx = 94 (unknown)</PRE> +The alarm condition is indicated by other than <TT>8</TT> at <TT>a</TT>, +which occurs during initial synchronization and when received signal is +lost for an extended period; unlock condition is indicated by other than +<TT>0000</TT> in the <TT>tttt</TT> subfield. +<H4> +Monitor Data</H4> +When enabled by the <TT>flag4</TT> fudge flag, every received timecode +is written as-is to the <TT>clockstats</TT> file. +<H4> +Fudge Factors</H4> + +<DL> +<DT> +<TT>time1 <I>time</I></TT></DT> + +<DD> +Specifies the time offset calibration factor, in seconds and fraction, +with default 0.0.</DD> + +<DT> +<TT>time2 <I>time</I></TT></DT> + +<DD> +Not used by this driver.</DD> + +<DT> +<TT>stratum <I>number</I></TT></DT> + +<DD> +Specifies the driver stratum, in decimal from 0 to 15, with default 0.</DD> + +<DT> +<TT>refid <I>string</I></TT></DT> + +<DD> +Specifies the driver reference identifier, an ASCII string from one to +four characters, with default <TT>WWV</TT>.</DD> + +<DT> +<TT>flag1 0 | 1</TT></DT> + +<DD> +Not used by this driver.</DD> + +<DT> +<TT>flag2 0 | 1</TT></DT> + +<DD> +Not used by this driver.</DD> + +<DT> +<TT>flag3 0 | 1</TT></DT> + +<DD> +Not used by this driver.</DD> + +<DT> +<TT>flag4 0 | 1</TT></DT> + +<DD> +Not used by this driver.</DD> +</DL> +Additional Information + +<P><A HREF="refclock.htm">Reference Clock Drivers</A> +<HR> +<ADDRESS> +David L. Mills (mills@udel.edu)</ADDRESS> + +</BODY> +</HTML> |