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Junior Varsity
X32 Discussion
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<blockquote data-quote="Timo Ulkuniemi" data-source="post: 83644" data-attributes="member: 1978"><p>cable testing tonight</p><p></p><p>Hello </p><p></p><p>I plan to make a test tonight with my self-made snake. </p><p>It has cat-5 and powercable wrapped around each once about every 20cm/8inch. Total lenght about 20 meters/65 feet</p><p></p><p>I have in mind two tests - both with cable fully coiled AND fully stretched - snake reel is metal.</p><p></p><p>I´ll connect two S16 and X32.</p><p>I will power S16 x32 separate from snake power-cable in order to avoid any of test-induced stuff to get into system via S16 6 X32 PSU:s</p><p>Also I think that it might be better to have 100% of "dirty" power than 50/50 "dirty/clean"</p><p></p><p></p><p>I will leave all inputs open with minimum gain in order to not bring anything to hear into system.</p><p>I will open all faders up to 0 - channels and master.</p><p></p><p>For reference I will listen to master output without anything connected to snake power cable - and measure result, if I can.</p><p></p><p><strong>Test 1</strong> Run about 6A lamp load with analog dimmerpack to "see" / hear if it induces anything into CAT - tweaking dimmer to get some noise.</p><p></p><p><strong>Test 2</strong> ( this one I learned at Turck Multiprox MN ) </p><p> connect a power-relay / contactor / toroid x-former as load - using a rough file and cheap voltmeter-probe as switch - swiping probe along </p><p>file produces very uneven connections, that causes large spikes into power cable. ( feed power cable in normal outlet - no dimmer. ) </p><p>we used to test industrial proximity switces like this - it was much more difficult test than the "industry standard" those days.</p><p></p><p><strong>Test 3</strong> If anybody has suggestions of some other things, I might try do that as well, while at it.</p><p></p><p>I´ll start testing in about 4 hours after posting this - so hurry with your ideas.</p></blockquote><p></p>
[QUOTE="Timo Ulkuniemi, post: 83644, member: 1978"] cable testing tonight Hello I plan to make a test tonight with my self-made snake. It has cat-5 and powercable wrapped around each once about every 20cm/8inch. Total lenght about 20 meters/65 feet I have in mind two tests - both with cable fully coiled AND fully stretched - snake reel is metal. I´ll connect two S16 and X32. I will power S16 x32 separate from snake power-cable in order to avoid any of test-induced stuff to get into system via S16 6 X32 PSU:s Also I think that it might be better to have 100% of "dirty" power than 50/50 "dirty/clean" I will leave all inputs open with minimum gain in order to not bring anything to hear into system. I will open all faders up to 0 - channels and master. For reference I will listen to master output without anything connected to snake power cable - and measure result, if I can. [B]Test 1[/B] Run about 6A lamp load with analog dimmerpack to "see" / hear if it induces anything into CAT - tweaking dimmer to get some noise. [B]Test 2[/B] ( this one I learned at Turck Multiprox MN ) connect a power-relay / contactor / toroid x-former as load - using a rough file and cheap voltmeter-probe as switch - swiping probe along file produces very uneven connections, that causes large spikes into power cable. ( feed power cable in normal outlet - no dimmer. ) we used to test industrial proximity switces like this - it was much more difficult test than the "industry standard" those days. [B]Test 3[/B] If anybody has suggestions of some other things, I might try do that as well, while at it. I´ll start testing in about 4 hours after posting this - so hurry with your ideas. [/QUOTE]
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