Engineer's Corner

Credit Ryan T Conaty

The Engineer's Corner is an occasional series penned by RIPR's IT & Engineering Director, Aaron Read.  

Any time he thinks there's something useful, important, amusing, or otherwise interesting enough to write about?  This is where you'll find it.  The highest compliment he gets, and frequently, is from readers who assure him that even though they have no idea what he's writing about, they love that he's writing it.

AT&T Tower Climbers on 102.7 Tower
Aaron Read RIPR

This past Saturday, AT&T Wireless performed a hardware upgrade to their cellphone antennas that're on the same tower RIPR's 102.7FM signal is, in Narragansett.   This entailed two tower climbers spending nearly six hours up on the tower, within about 20-30 feet of our Shively 3-bay antenna.  Fortunately between the laws of antenna physics, and judicious reduction in transmitter power, RIPR could stay on the air without jeopardizing worker safety!

WRNI-FM utility rack
Aaron Read RIPR

UPDATE: More tower work Saturday April 11th beginning at 10am.

The second AT&T crew is returning for another try for antenna replacement on Saturday 4/11 starting at 10am and lasting most of the day.  

Based on previous experience, we are hoping to maintain normal operations on 102.7...or at worst just run at half-power.   Check the @RINPR twitter feed for updates.

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102.7FM tower
Aaron Read RIPR

Beginning at 10:00am on Saturday March 28th there will be an extended outage of RIPR's 102.7FM signal.   It is expected to last several hours at least, possibly until sunset (around 6:30pm).

We may be able to continue operating at reduced power.  But it's likely that 102.7 will just be completely off the air.   Please note: whenever 102.7 is off, our WCVY 91.5FM signal in Coventry will be off as well.  (it gets its content via a radio receiver tuned to 102.7)

WWBB Blanketing Contour Map
Aaron Read RIPR

(Update 02/03 5:00pm) B101 has officially moved to One Financial Plaza (aka Hospital Trust tower) in downtown Providence as their new permanent home.  A "license to cover" has been granted by the FCC

What does this mean for your listening to 88.1FM?

If you live within approx. 1.5km of One Financial Plaza (see map at right) and you are experiencing blanketing interference to RIPR, then the FCC rules (47 CFR § 73.318(b)) mandate that WWBB must "satisfy all complaints of blanketing interference which are received  by the station during a one year period."   That period began 1/27/2015 and ends 1/27/2016 but please don't delay!

You can contact Troy Langham at (918) 664-4581 or FCCcontact@clearchannel.com to log a blanketing interference complaint and request assistance from their engineers.  Make sure to mention it's under "FCC rule section seventy-three dot three-one-eight".   Give your name, physical address, and a way to contact you (email or phone).

Also, please take a minute to fill out an RIPR survey about blanketing interference.  It will help us define the scope of the problem and provide useful info for our discussions with iHeartMedia's engineers and corporate offices.

Survey = http://goo.gl/forms/v4UInPKZFt

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Optimod 8100A
Gearslutz.com

UPDATE DEC.1, 2014: our demo unit of the BW Broadcast DSPXmini-FM SE audio processor arrived today.   It's been installed on 88.1FM and initial tweaking is complete.  The sound seems markedly improved.  I'll be fiddling with it further to adjust it across different programs.

ORIGINAL ARTICLE: About a week ago, your intrepid engineer made some changes to the airchain on our 88.1FM that should've, in theory, been wholly beneficial and with no potential for downside.  However, around that same time I started getting reports of an odd whistle...or just high-pitched static...that would come and go with no apparently rhyme or reason.

These reports aren't widespread, but there's been enough that I'm no longer inclined to think it's just an odd run of people happening to have poor reception.   The only commonality is that it seems to occur only when reception of 88.1 isn't very good to begin with.  Not necessarily "poor" reception at all, just not "super-solid".

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