transmitter http://ripr.org en TheEC: New STL at 88.1FM http://ripr.org/post/theec-new-stl-881fm <p></p><p><strong>UPDATE 7/22:&nbsp;</strong>After a weekend of solid operation, we've moved out of "beta" and into "gold", meaning when you listen to 88.1, you're hearing audio that's coming across the new microwave STL.</p><p>------------------------------------------</p><p><a href="https://www.youtube.com/watch?v=z6ODMDtG6-I"><strong>Good news everyone!</strong></a></p><p>Longtime Engineer's Corner readers know that we've had, well, <a href="http://ripr.org/post/theec-digital-chirps-881">"issues" with the STL</a> or "Studio/Transmitter Link" for our 88.1FM signal in Providence. &nbsp; The STL is what carries the audio from our studios in downtown Providence to the transmitter/tower at the Wheeler Farm in Seekonk.</p><p>Now a <a href="http://ripr.org/post/theec-new-stl-dish-881-installed">couple weeks ago we revealed</a> that half of a new wireless microwave STL was installed, and that the other half would be installed soon. &nbsp;Today, we fired it up for the first time and the results were gratifyingly positive!</p><p> Fri, 18 Jul 2014 22:10:16 +0000 Aaron Read 36961 at http://ripr.org TheEC: New STL at 88.1FM TheEC: New STL Dish at 88.1 - INSTALLED! http://ripr.org/post/theec-new-stl-dish-881-installed <p><u><strong style="line-height: 1.5;">UPDATE @ 1pm&nbsp;: 88.1FM is back at normal power!</strong></u> &nbsp;Pics are available on our Twitter feed <a href="https://twitter.com/RINPR/status/479266377044213760">here</a>, <a href="https://twitter.com/RINPR/status/479288601365053440">here</a>, <a href="https://twitter.com/RINPR/status/479292528861011968">here</a> and <a href="https://twitter.com/RINPR/status/479311467628343296">here</a>. &nbsp; <em>By the way, many of these pics were taken with a stock iPhone 5S using <a href="http://www.amazon.com/gp/product/B00AQUCPFC/ref=oh_details_o00_s00_i00?ie=UTF8&amp;psc=1">this telephoto lens attachment</a>. &nbsp;Pretty good for $45!</em></p><p>----------------------------------------------</p><p><strong style="line-height: 1.5;">On Wednesday June&nbsp;18th, beginning around 9:30 or&nbsp;10am</strong><span style="line-height: 1.5;">, 88.1FM will be running on the backup transmitter &amp; antenna for a few hours to install new equipment on the top of the tower. &nbsp; We must run on the lower-power backup for the health &amp; safety of our tower climber.</span></p><p>The backup operates using a one-bay vertically-polarized omnidirectional antenna and about one-tenth our normal power. &nbsp;&nbsp;</p><p><br /><b>THIS WILL NOT IMPACT OUR 91.5 OR 102.7FM SIGNALS, NOR OUR WEBCAST.</b></p><p><strong><a href="https://twitter.com/RINPR">Keep watching our Twitter feed for updates.</a></strong></p><p> Tue, 17 Jun 2014 23:25:47 +0000 Aaron Read 35356 at http://ripr.org TheEC: New STL Dish at 88.1 - INSTALLED! TheEC: Audio Dropouts on 88.1FM http://ripr.org/post/theec-audio-dropouts-881fm <p><span style="line-height: 1.5;"><strong>UPDATED 5/8/2014.</strong></span></p><p><span style="line-height: 1.5;">The morning of April </span>30th<span style="line-height: 1.5;"> saw several odd "dropouts" in the audio on 88.1FM, usually lasting 5 to 8 seconds each, happening as often as 2 or 3 times a minute, but more commonly once every 10 to 15 minutes.</span></p><p>There was also an odd "repeating audio" effect some people noticed, when the audio came back.</p><p>Read on for the explanation of both!</p><p> Wed, 30 Apr 2014 16:42:25 +0000 Aaron Read 32862 at http://ripr.org TheEC: Audio Dropouts on 88.1FM TheEC: 88.1 Studio/Transmitter Link http://ripr.org/post/theec-881-studiotransmitter-link <p></p><p><span style="line-height: 1.5;">In light of ongoing issues with the Studio/Transmitter Link (</span>STL<span style="line-height: 1.5;">) for </span>WELH<span style="line-height: 1.5;"> 88.1, we have implemented a new </span>STL<span style="line-height: 1.5;">&nbsp; schema. &nbsp; If you heard a lot of </span><a href="http://ripr.org/post/theec-digital-chirps-881" style="line-height: 1.5;">odd audio dropouts on 88.1 today</a><span style="line-height: 1.5;">, that was the reason.</span></p><p>The good news is that we should have a pretty good temporary solution in place, and a solid path for a permanent solution is on the horizon (tentatively scheduled for mid-March). &nbsp; Best of all, I was able to put in a new(er)&nbsp;<a href="http://www.optimod.fm/">Orban Optimod 8100A</a>&nbsp;audio processor to replace the less-capable&nbsp;<a href="http://www.bswusa.com/Broadcast-On-Air-Processing-Inovonics-718-David-III-FM-Broadcast-Processor-P2989.aspx">Inovonics DAVID-III</a>. &nbsp;There's a little&nbsp;<a href="http://en.wikipedia.org/wiki/Sibilant">sibilance</a>&nbsp;still, so I need to tweak the settings. &nbsp;But overall the sound should be much louder, fuller, and more consistent.</p><p>Read on for more details...</p><p> Tue, 28 Jan 2014 03:08:11 +0000 Aaron Read 28255 at http://ripr.org TheEC: 88.1 Studio/Transmitter Link TheEC: 91.5 is Back On the Air http://ripr.org/post/theec-915-back-air <p>As of Tuesday November 12th, WCVY is back on the air in limited fashion.&nbsp;&nbsp; As you know, WCVY <a href="http://ripr.org/post/why-wcvy-was-air-few-days">suffered catastrophic damage to its equipment and facility from a roof leak during a thunderstorm in August</a>.&nbsp;&nbsp; The entire space had to be gutted to the concrete walls, and new electrical wiring and drywall installed.&nbsp; Much of the transmitter gear either took direct water damage (e.g. electricity shorting out) or took indirect water damage (e.g. rust and other corrosion), and eventually a lot of it failed completely.</p><p></p><p>We have put a temporary setup in place with a donated 30 watt transmitter on loan (with the <a href="http://en.wikipedia.org/wiki/Antenna_gain">antenna array's gain</a> factor of 2.1, it's really more like <strong>63 watts</strong> of <a href="http://en.wikipedia.org/wiki/Effective_radiated_power#FM_example">Effective Radiated Power</a>), and a special radio that's tuned to 102.7FM (there's a high-gain FM antenna on the rooftop tower) and puts out the <a href="http://en.wikipedia.org/wiki/File:RDS_vs_DirectBand_FM-spectrum2.svg">composite signal</a> directly into the new transmitter.&nbsp;&nbsp; This effectively makes 91.5 into a "repeater" of 102.7FM.</p><p> Tue, 12 Nov 2013 18:43:01 +0000 Aaron Read 24695 at http://ripr.org TheEC: 91.5 is Back On the Air