WSPR - Revision history

TimVK4YEH: /* Time Synchronisation */

2009-06-29T09:04:57Z

Time Synchronisation

← Older revision		Revision as of 02:04, 29 June 2009
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	Effective use of WSPR is dependent on accurate synchronisation of the computer clock to "internet time".		Effective use of WSPR is dependent on accurate synchronisation of the computer clock to "internet time".

	While this can be achieved by using the "Date and Time properties'function in windoes, some users have found [[http://www.thinkman.com/dimension4/ Dimension 4]] to be a very useful utility.		While this can be achieved by using the "Date and Time properties" function in windoes, some users have found [[http://www.thinkman.com/dimension4/ Dimension 4]] to be a very useful utility.


	== External links ==		== External links ==

TimVK4YEH: added dimension 4 link

2009-06-29T09:03:41Z

added dimension 4 link

← Older revision		Revision as of 02:03, 29 June 2009
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	The fact that stations are linked means that time synchronisation is critical. Reports suggest that time differences of greater than 2 seconds will result in errors. Many operators use [http://www.thinkman.com/dimension4/ Dimension 4] to synchronise their Windows PC.		The fact that stations are linked means that time synchronisation is critical. Reports suggest that time differences of greater than 2 seconds will result in errors. Many operators use [http://www.thinkman.com/dimension4/ Dimension 4] to synchronise their Windows PC.

			==Time Synchronisation==

			Effective use of WSPR is dependent on accurate synchronisation of the computer clock to "internet time".

			While this can be achieved by using the "Date and Time properties'function in windoes, some users have found [[http://www.thinkman.com/dimension4/ Dimension 4]] to be a very useful utility.

Carlb: /* External links */

2009-04-09T18:44:04Z

External links

← Older revision		Revision as of 11:44, 9 April 2009
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	== External links ==		== External links ==

	* [http://physics.princeton.edu/pulsar/K1JT/ WSJT home page]		* [http://physics.princeton.edu/pulsar/K1JT/ WSJT home page]

	* [http://www.g4ilo.com/wspr.html G4ILO] a good intro to WSPR.		* [http://www.g4ilo.com/wspr.html G4ILO] a good intro to WSPR.
			* [http://wsprnet.org/drupal/node WSPRnet.org] A great forum for information, chat and spots.
			* [http://groups.yahoo.com/group/wspr_mept/ wspr_mept] yahoo user group for WSPR

	* [http://wsprnet.org/drupal/node WSPRnet.org] A great forum for information, chat and spots.

	* [http://groups.yahoo.com/group/wspr_mept/ wspr_mept] yahoo user group for WSPR		{{software}}

TimVK4YEH: added link to wsjt

2009-04-06T08:00:14Z

added link to wsjt

← Older revision		Revision as of 01:00, 6 April 2009
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	Related wiki pages [[Repeater listings]], [[APRS]], [[D-Star]], [[Echolink]], [[IRLP]], [[Packet]], [[Slow-Scan Television (SSTV)]], [[Fast-Scan Television (ATV)]], [[Optical communications]], [[Software]]		Related wiki pages [[Repeater listings]], [[APRS]], [[D-Star]], [[Echolink]], [[IRLP]], [[Packet]], [[Slow-Scan Television (SSTV)]], [[Fast-Scan Television (ATV)]], [[Optical communications]], [[Software]], [[WSJT]]

TimVK4YEH: resized the table

2008-12-23T00:46:48Z

resized the table

← Older revision		Revision as of 17:46, 22 December 2008
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	== Frequencies in use for WSPR ==		== Frequencies in use for WSPR ==

	<table border="2" cellpadding="2" cellspacing="2" width="80%">		<table border="2" cellpadding="2" cellspacing="2" width="50%">
	<tr>		<tr>
	<th style="text-align: center">Band</th>		<th style="text-align: center">Band</th>

TimVK4YEH: added capture of spots page and some info

2008-12-18T20:23:24Z

added capture of spots page and some info

← Older revision		Revision as of 13:23, 18 December 2008
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	"''The cause of receiving stations reporting two instances of the same transmission is usually caused by local QRM at the receive location or over driving of the sound card input from the receiver, or both. I, along with others, have had our transmissions reported in doubles at various times. It is usually a new WSPR user who has not adjusted his input level properly or strong QRM during a WSPR receive cycle.'' "		"''The cause of receiving stations reporting two instances of the same transmission is usually caused by local QRM at the receive location or over driving of the sound card input from the receiver, or both. I, along with others, have had our transmissions reported in doubles at various times. It is usually a new WSPR user who has not adjusted his input level properly or strong QRM during a WSPR receive cycle.'' "

			==WSPR Spots==

			[http://wsprnet.org/meptspots.php This link] goes to the WSPR spots page. WSPR receivers are linked via the internet, and information is automatically uploaded to the server by the WSPR software ( this can be turned off ). An example of the spots page is below:

			[[Image: VK4YEH WSPR spots.png \|700px]]

			The fact that stations are linked means that time synchronisation is critical. Reports suggest that time differences of greater than 2 seconds will result in errors. Many operators use [http://www.thinkman.com/dimension4/ Dimension 4] to synchronise their Windows PC.


	== External links ==		== External links ==

TimVK4YEH: added explanation for multiple receive tracks

2008-12-18T20:03:36Z

added explanation for multiple receive tracks

← Older revision		Revision as of 13:03, 18 December 2008
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	[[Image:VK4YEH-WSPR.jpg \|700px]]		[[Image:VK4YEH-WSPR.jpg \|700px]]

			One feature of this receive pane is the multiple receive tracks from the same station (VK4YEH) at the same time. Larry Weaver supplied this explanation:

			"''The cause of receiving stations reporting two instances of the same transmission is usually caused by local QRM at the receive location or over driving of the sound card input from the receiver, or both. I, along with others, have had our transmissions reported in doubles at various times. It is usually a new WSPR user who has not adjusted his input level properly or strong QRM during a WSPR receive cycle.'' "

	== External links ==		== External links ==

TimVK4YEH: added interface summary and pic

2008-12-18T19:58:40Z

added interface summary and pic

← Older revision		Revision as of 12:58, 18 December 2008
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	* Top Tight - the active stations pane which shows which stations have been received.		* Top Tight - the active stations pane which shows which stations have been received.
	* Bottom Right - received station details, showing the receive parameters of active stations.		* Bottom Right - received station details, showing the receive parameters of active stations.

			[[Image:VK4YEH-WSPR.jpg \|700px]]

	== External links ==		== External links ==

TimVK4YEH at 19:56, 18 December 2008

2008-12-18T19:56:06Z

← Older revision		Revision as of 12:56, 18 December 2008
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	</table>		</table>

			==WSPR interface==

			The WSPR interface has three main panes:
			* Top left - the activity pane which is divided into vertical strips each representing a time of 2 minutes. In the example below, transmits are shown as green vertical lines.
			* Top Tight - the active stations pane which shows which stations have been received.
			* Bottom Right - received station details, showing the receive parameters of active stations.

	== External links ==		== External links ==

TimVK4YEH: added wsjt home page

2008-12-17T21:16:35Z

added wsjt home page

← Older revision		Revision as of 14:16, 17 December 2008
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	== External links ==		== External links ==

			* [http://physics.princeton.edu/pulsar/K1JT/ WSJT home page]

	* [http://www.g4ilo.com/wspr.html G4ILO] a good intro to WSPR.		* [http://www.g4ilo.com/wspr.html G4ILO] a good intro to WSPR.