--- title: What IS That Thing? description: What do Wrigley Field, large white disks and Federal Signal have to do with each other?  WTTW Chicago's Geoffrey Baer answers this question from a viewer who wonders what's up with that weird object in left field. Watch the video from 6:03-7:19 to find out what IT is. Visit Federal Signal Alerting & Notification to learn more about our modulator siren.   --- [![Federal Signal](https://www.federalsignal.com/hs-fs/hubfs/logo-Fedsig-name.png?width=800&height=151&name=logo-Fedsig-name.png "Federal Signal")](https://federalsignal.com) [[![](https://www.federalsignal.com/hubfs/logo-Fedsig.svg)](https://www.federalsignal.com/) ![](https://www.federalsignal.com/hubfs/fed-sig-wordmark-tag-1.svg) ](https://www.federalsignal.com/home) ** [![CONTACT US](https://no-cache.hubspot.com/cta/default/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0.png)](https://cta-redirect.hubspot.com/cta/redirect/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0) ** ** [![Federal Signal](https://www.federalsignal.com/hs-fs/hubfs/logo-Fedsig-name.png?width=800&height=151&name=logo-Fedsig-name.png "Federal Signal")](https://federalsignal.com) ** [![CONTACT US](https://no-cache.hubspot.com/cta/default/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0.png)](https://cta-redirect.hubspot.com/cta/redirect/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0) ** ** [![Federal Signal](https://www.federalsignal.com/hs-fs/hubfs/logo-Fedsig-name.png?width=800&height=151&name=logo-Fedsig-name.png "Federal Signal")](https://federalsignal.com) ** [![CONTACT US](https://no-cache.hubspot.com/cta/default/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0.png)](https://cta-redirect.hubspot.com/cta/redirect/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0) ** ** Search **Menu** ** ** #### **[HOME](https://www.federalsignal.com)** [![CONTACT US](https://no-cache.hubspot.com/cta/default/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0.png)](https://cta-redirect.hubspot.com/cta/redirect/6860826/f04eedbf-5b92-40a4-9443-0282f7e58ce0) [**Federal Signal News](https://www.federalsignal.com/fs-news) ### What IS That Thing? by [Admin](https://www.federalsignal.com/fs-news/author/admin), on Jul 10, 2014 12:00:00 AM What do Wrigley Field, large white disks and Federal Signal have to do with each other?  WTTW Chicago's Geoffrey Baer answers this question from a viewer who wonders what's up with that weird object in left field. Watch the video from 6:03-7:19 to find out what IT is. Visit [Federal Signal Alerting & Notification](http://federalsignal-staging.caxy.com/fs-alerting-and-notification) to learn more about our modulator siren.   Topics:[FS A&N](https://www.federalsignal.com/fs-news/topic/fs-an) ## Comments ## Safe Harbor ### “Safe Harbor” Statement under the Private Securities Litigation Reform Act of 1995 Information on our website may contain unaudited financial info and various forward-looking statements as of the date hereof and we undertake no obligation to update these forward-looking statements regardless of new developments or otherwise. Statements included in information on our website that are not historical are forward-looking statements. Such statements are subject to various risks and uncertainties that could cause actual results to vary materially from those stated. Such risks and uncertainties include but are not limited to: economic and political uncertainty, risks and adverse economic effects associated with geopolitical conflicts, legal and regulatory developments, foreign currency exchange rate changes, inflationary pressures, product and price competition, supply chain disruptions, availability and pricing of raw materials, interest rate changes, risks associated with acquisitions such as integration of operations and achieving anticipated revenue and cost benefits, work stoppages, increases in pension funding requirements, cybersecurity risks, increased legal expenses and litigation results and other risks and uncertainties described in filings with the Securities and Exchange Commission. **Contact**: Ian Hudson, Chief Financial Officer, +1-630-954-2000, [IHudson@federalsignal.com](mailto:IHudson@federalsignal.com) [![logo-FederalSignal](https://www.federalsignal.com/hubfs/logo-Fedsig.svg "logo-FederalSignal")](https://www.federalsignal.com/home) 1333 Butterfield Road Suite 500 Downers Grove, IL 60515 [Contact Us](https://6860826.hs-sites.com/contact-us) Copyright © 2026 Federal Signal Corporation. All Rights Reserved. [Safe Harbor](https://www.federalsignal.com/fs-news/what-thing#popup) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Admin", "url" : "https://www.federalsignal.com/fs-news/author/admin" }, "dateModified" : "2022-09-03T03:07:54.392Z", "datePublished" : "2014-07-10T05:00:00.000Z", "headline" : "What IS That Thing?", "mainEntityOfPage" : { "@id" : "https://www.federalsignal.com/fs-news/what-thing", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.federalsignal.com/hubfs/MRL%20Equipment/logos/federal_signal_logo_red.png" }, "name" : "Federal Signal" } } ```