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Tech Head - The Technology Section
SDR radio, Software Defined Radio
Basic setup guide to wxsat reception (using a windows computer)
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<blockquote data-quote="Analoguesat" data-source="post: 1046453" data-attributes="member: 176362"><p>Problems:</p><p></p><p>If you run win10 I guarantee the regular updates will break this & you need to rerun the Zadig driver install at the very least.</p><p></p><p>SDR# seems to be very buggy indeed under win10 - my 5 year old laptop keeps locking up solid when playing with SDR# The only way out is to push & hold the power button......</p><p></p><p>If you live near pager base stations your signals will get blatted by POCSAG transmissions leading to interference lines across the images.</p><p></p><p>SDR# is flaky and you need to keep a careful eye on the settings - if you move the cursor around you will get the audio mode changing - <strong>so make sure its reset to WFM after playing with it!</strong></p><p></p><p>This setup only has manual tuning for each pass. I will investigate the auto re-tuning at a later date</p><p></p><p>The "BBC Weather images" are only available on good daylight passes</p><p></p><p>NOAA 15 18 & 19 are elderly satellites. The newer birds dont have the APT transmission equipment so the window of opportunity to play with this is limited. Once these 3 birds go out of service that it - game over.</p><p></p><p></p><p>However even when you get some interference lines its very satisfying to be able to have a look at the weather direct from space</p><p></p><p>One from this morning to show what possible - and if you know anybody who went on holiday to the south of France on Easter Monday you can console yourself that they were getting very wet! <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite13" alt=":-rofl2" title="roll on floor :-rofl2" loading="lazy" data-shortname=":-rofl2" /></p><p></p><p>(This was received using the very antenna pictured up at the top of the thread - no amps, no filters - just that slightly wonky antenna, 5m or so of coax & a few joining interconnects.)</p><p></p><p></p><p></p><p>[ATTACH=full]116044[/ATTACH]</p><p></p><p></p><p>You may need to tweak the audio levels a little if your antenna is a good one. Right down the very bottom right hand corner of WXtoImg is a volume indicator. You want this to be green for the majority of a pass. If levels are too low you need to knock the audio up a bit. On my system I just leave everything turned up maximum atm. You can adjust level in the virtual audio cable system levels or in SDR# - just to the right of the gear wheel top left.</p></blockquote><p></p>
[QUOTE="Analoguesat, post: 1046453, member: 176362"] Problems: If you run win10 I guarantee the regular updates will break this & you need to rerun the Zadig driver install at the very least. SDR# seems to be very buggy indeed under win10 - my 5 year old laptop keeps locking up solid when playing with SDR# The only way out is to push & hold the power button...... If you live near pager base stations your signals will get blatted by POCSAG transmissions leading to interference lines across the images. SDR# is flaky and you need to keep a careful eye on the settings - if you move the cursor around you will get the audio mode changing - [B]so make sure its reset to WFM after playing with it![/B] This setup only has manual tuning for each pass. I will investigate the auto re-tuning at a later date The "BBC Weather images" are only available on good daylight passes NOAA 15 18 & 19 are elderly satellites. The newer birds dont have the APT transmission equipment so the window of opportunity to play with this is limited. Once these 3 birds go out of service that it - game over. However even when you get some interference lines its very satisfying to be able to have a look at the weather direct from space One from this morning to show what possible - and if you know anybody who went on holiday to the south of France on Easter Monday you can console yourself that they were getting very wet! :-rofl2 (This was received using the very antenna pictured up at the top of the thread - no amps, no filters - just that slightly wonky antenna, 5m or so of coax & a few joining interconnects.) [ATTACH=full]116044[/ATTACH] You may need to tweak the audio levels a little if your antenna is a good one. Right down the very bottom right hand corner of WXtoImg is a volume indicator. You want this to be green for the majority of a pass. If levels are too low you need to knock the audio up a bit. On my system I just leave everything turned up maximum atm. You can adjust level in the virtual audio cable system levels or in SDR# - just to the right of the gear wheel top left. [/QUOTE]
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Basic setup guide to wxsat reception (using a windows computer)
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