transmitter

Engineer's Corner
10:44 am
Tue December 16, 2014

B101 Blanketing 88.1 in Downtown Providence

Map of the 115dBu "Blanketing" Contour for WWBB 101.5FM Click the map to view full size.
Credit 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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Engineer's Corner
11:13 pm
Sat November 15, 2014

TheEC: Better HD Radio for 102.7FM

Spectrum analyzer of WRNI-FM's signal, with adjustments in progress.
Credit Aaron Read RIPR

Friday night and mid-day Saturday (Nov.14 & 15) ended up being a bit of a saga for what was supposed to be a routine upgrade for our 102.7FM signal in South County.   So first off, an apology to our RIPR listeners on 102.7FM, and to MVYradio's listeners to the 96.5FM signal in Newport.  There were several dropouts, periods when RIPR was on backup transmitter (and thus 96.5 was off entirely), or when both transmitters were down.

Exactly what happened could be described as an avalanche of minutiae, but I'll lay it out as best I can.

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Engineer's Corner
6:10 pm
Fri July 18, 2014

TheEC: New STL at 88.1FM

Your Intrepid "Engneah" poses with the new 950MHz Microwave STL transmit antenna on the roof of WELH's studios on the Wheeler School campus.
Credit David Schiano

UPDATE 7/22: 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.

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Good news everyone!

Longtime Engineer's Corner readers know that we've had, well, "issues" with the STL or "Studio/Transmitter Link" for our 88.1FM signal in Providence.   The STL is what carries the audio from our studios in downtown Providence to the transmitter/tower at the Wheeler Farm in Seekonk.

Now a couple weeks ago we revealed that half of a new wireless microwave STL was installed, and that the other half would be installed soon.  Today, we fired it up for the first time and the results were gratifyingly positive!

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Engineer's Corner
7:25 pm
Tue June 17, 2014

TheEC: New STL Dish at 88.1 - INSTALLED!

New 950MHz microwave STL dish being installed on WELH tower in Seekonk.
Credit Aaron Read RIPR

UPDATE @ 1pm : 88.1FM is back at normal power!  Pics are available on our Twitter feed here, here, here and here.   By the way, many of these pics were taken with a stock iPhone 5S using this telephoto lens attachment.  Pretty good for $45!

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On Wednesday June 18th, beginning around 9:30 or 10am, 88.1FM will be running on the backup transmitter & antenna for a few hours to install new equipment on the top of the tower.   We must run on the lower-power backup for the health & safety of our tower climber.

The backup operates using a one-bay vertically-polarized omnidirectional antenna and about one-tenth our normal power.   

THIS WILL NOT IMPACT OUR 91.5 OR 102.7FM SIGNALS, NOR OUR WEBCAST.

Keep watching our Twitter feed for updates.

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Engineer's Corner
12:42 pm
Wed April 30, 2014

TheEC: Audio Dropouts on 88.1FM

Can you hear me now?

UPDATED 5/8/2014.

The morning of April 30th 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.

There was also an odd "repeating audio" effect some people noticed, when the audio came back.

Read on for the explanation of both!

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