{"id":12963,"date":"2024-09-04T06:49:47","date_gmt":"2024-09-04T10:49:47","guid":{"rendered":"https:\/\/www.engineeringradio.us\/blog\/?p=12963"},"modified":"2024-09-04T06:49:48","modified_gmt":"2024-09-04T10:49:48","slug":"fordham-university-wfuv","status":"publish","type":"post","link":"https:\/\/www.engineeringradio.us\/blog\/2024\/09\/fordham-university-wfuv\/","title":{"rendered":"Fordham University WFUV"},"content":{"rendered":"\n

Over the last several months, I have been helping out in a small way with WFUV’s<\/a> new transmitter installation. George Evans, CE for WFUV, and Bill Weeks of Wolftron Electronics did most of the work. This project’s location is unique; the transmitter is in an equipment shelter on top of the Montefiore Medical Center<\/a> in the Bronx. That complicated the removal of the old transmitters and installation of the new transmitters.<\/p>\n\n\n\n

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WFUV tower atop the Montefiore Medical Center<\/figcaption><\/figure>\n\n\n\n

This is the top of the Montefiore Medical Center in the Bronx. The building has 28 floors. To access the transmitter, one needs to go up another flight of stairs to the roof. Go outside onto the roof and take two more flights of stairs to the transmitter shelter just below the tower. Those stairs can be seen as a thin wispy thing on the left of the elevator building.<\/p>\n\n\n\n

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WFUV tower, close up<\/figcaption><\/figure>\n\n\n\n

At the top of the tower, the two-bay Shively antenna is for WVBN<\/a> 103.9 Mhz. WFUV 90.7 MHz is the six-bay Shively just below that. <\/p>\n\n\n\n

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BE FMi 703 (FM-10S)<\/figcaption><\/figure>\n\n\n\n

These are the transmitters being replaced. There are two of them running combined for a TPO of 14.2 KW (including the -14 dBc HD subcarriers). They are about 20 years old.<\/p>\n\n\n\n

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The before picture; combined BE FMi 703 transmitters<\/figcaption><\/figure>\n\n\n\n

As you can see, there is little room to work in this space. The old transmitters needed to be removed from the room, hosted down two stories to the main rooftop, wheeled around to the door, and then lowered another flight of stairs to the 28th to the elevator.<\/p>\n\n\n\n

It makes me tired just thinking about it.<\/p>\n\n\n\n

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BE FMi 703 (less RF modules and power supplies) being lowered to the rooftop level<\/figcaption><\/figure>\n\n\n\n

Out with the old, in with the new.<\/p>\n\n\n\n

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GatesAir FAX15K being hoisted from the roof up to the transmitter shelter<\/figcaption><\/figure>\n\n\n\n

The GatesAir FAX15Ks made the trip up safely. Able Rigging from New Jersey did all of the moving into and out of the shelter. The two transmitter chassis, all of the boxes containing the exciters, RF modules, power supplies plus a 25 KW dummy load, and the cut-up for scrap Myat variable T antenna combiner were removed in one go.<\/p>\n\n\n\n

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The after picture; GatesAir FAX15K transmitters, two cabinet version<\/figcaption><\/figure>\n\n\n\n

The FAX15K’s are in the shorter cabinets (requires two) because the taller cabinet would not fit in the elevator.<\/p>\n\n\n\n

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FAX15K with back doors removed, power block, combiner, directional coupler, and RF output flange.<\/figcaption><\/figure>\n\n\n\n
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3-inch coax switch and RF plumbing<\/figcaption><\/figure>\n\n\n\n

The output of each transmitter goes to a 3-inch coax switch. The bottom port of the switch goes to the Shively filter (thence to the antenna), and the top port goes to the 20 KW dummy load.<\/p>\n\n\n\n

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3-inch coax switch<\/figcaption><\/figure>\n\n\n\n
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Bill Weeks routing control wiring to coax switch<\/figcaption><\/figure>\n\n\n\n
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WFUV CE George Evans, heading to the job site<\/figcaption><\/figure>\n\n\n\n
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“How many more times do I have to climb these stairs today?”<\/figcaption><\/figure>\n\n\n\n
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But the view is great! Mid and upper Manhattan in the distance<\/figcaption><\/figure>\n\n\n\n
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Your author is about to tell a sea story…<\/figcaption><\/figure>\n\n\n\n

I enjoyed working on this project. <\/p>\n","protected":false},"excerpt":{"rendered":"

Over the last several months, I have been helping out in a small way with WFUV’s new transmitter installation. George Evans, CE for WFUV, and Bill Weeks of Wolftron Electronics did most of the work. This project’s location is unique; the transmitter is in an equipment shelter on top of the Montefiore Medical Center in … Continue reading Fordham University WFUV<\/span><\/a><\/p>\n","protected":false},"author":4,"featured_media":12967,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[337],"tags":[82,215,15],"class_list":["post-12963","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-installations","tag-fm","tag-fm-transmitter-site","tag-fm-transmitters"],"_links":{"self":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/12963","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/comments?post=12963"}],"version-history":[{"count":14,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/12963\/revisions"}],"predecessor-version":[{"id":12998,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/posts\/12963\/revisions\/12998"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/media\/12967"}],"wp:attachment":[{"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/media?parent=12963"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/categories?post=12963"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.engineeringradio.us\/blog\/wp-json\/wp\/v2\/tags?post=12963"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}