The last AM station

AM; it has a future or not?  I cannot make up my mind sometimes.  As some AM stations can and do make a profit, many others do not.  Truth be told, the engineering effort that goes into an AM directional antenna is becoming a black science.  And some people may say, “oh, but that gives you job security,” but that is not usually how it works.  Instead of paying somebody more money (or any money) to maintain something, the business philosophy these days seems to be to chuck the baby out with the bath water.  Because after all, if not AM then FM right?  Yes, of course!  Except, the very thing that happened to AM is happening to FM too.  Increasing noise floors, jamming signals into every possible nook of the frequency spectrum, no thought toward technical facilities and infrastructure, and horrible, horrible programming will result has resulted in the decline of listening for FM too.  Mark my words and the date; FM broadcasting will suffer the same fate as AM if current trends continue.

Guy wires in trees
Guy wires in trees

How will it end?  I would hazard with more of a whimper than a bang.  I imagine something like this:

One day, in the not very distant future, at an AM station somewhere, the transmitter faults and goes off the air. Chip, the computer guy, goes in the back room, moves a bunch of cleaning supplies, cases toilet paper, a garbage can and the remote gear out of the way so he can reach the ON button on that box the old guy told him about. The big box makes some clunking noises and comes on for a second, but then the fault light called “VSWR” or something comes on and the transmitter shut off again.

Chip, the computer guy, remembering what the old guy said about that big tall thing behind the building, pushes the back door open.  What used to be a field is now completely overgrown with weeds, brush, and trees. He follows the pipe from the back of the building, through the prickers until he comes to an old fence, which is falling down. He pushes on the locked gate and it falls off the hinges. Inside the fence, there is a rusty tower and a white box. Finding the box unlocked, he opens it and sees a baffling array of metal coils, copper tubes, and black round things. He sees that one of the black round things is cracked in half and black goop is coming out of it. The computer guy takes a picture with his cellphone and emails it to the market manager/vice president of sales.

A few minutes later, the the market manager calls back and Chip tries to explain what is going on, stating the the transmitter went off and the black thing in the box by the tower looks broken.  The market manager/vice president of sales asks “Has anyone called and complained?”  Chip says no, not that he is aware of.  The market manager says, “Eh, fuck it leave it off.”

The end.

Horby and Solvesborgs transmitter site

This is a video of Radio Sweden’s shortwave and medium-wave transmitter sites:

Håkan Widenstedt at Hörby and Sölvesborgs Transmitter sites from HamSphere on Vimeo.

This was filmed in 2006. In 2010, Radio Sweden ceased broadcasting on medium and shortwave, thus I believe these sites have Horby (HF) have been dismantled.  Medium wave installation Solvesborg is visible starting at 15:30. Two tower directional array 180-degree towers with 600 KW carrier power. Quite impressive.

There is an effort to at save the Solvesborg site, perhaps as a museum.

Transmitters were in Skane, Sweden:


View Larger Map

h/t Shortwave Central

Bucket Trucks and Landing Craft

Hopefully, that title is descriptive enough:

ATT bucket trucks, , mobilized via landing craft to Pleasure Beach
ATT bucket trucks, , mobilized via landing craft to Pleasure Beach

We loaded a couple of ATT bucket trucks on a landing craft and waged an assault on Pleasure Beach.  This is to finalize the repair work from Hurricane Sandy last year.  The other factor is the construction taking place on the Island.  The City of Bridgeport is constructing a park, which involves extensive repairs and renovations to the buildings.  Construction vehicles driving under the old lines have ripped them down several times, thus repairing the lines on the new utility poles was necessary.

ATT truck offloading
ATT truck offloading
ATT truck offloading
ATT truck offloading

ATT is the LEC for the Bridgeport area, something they don’t do in most other parts of the country, from what I am told.

Landing Craft Challenger
Landing Craft Challenger

It took approximately four hours to complete this work and reload the trucks back on the landing craft.  The boat itself looks like a slightly modified LCM (Landing Craft, Mechanized), which was produced from 1943 onward.  This is an LCM-8.

WICC towers
WICC towers

WICC towers almost in line, I was about one second too late with this shot. This would be “down the bore” of the daytime pattern into downtown Bridgeport.

WICC towers
WICC towers

Another shot of the WICC towers. These were designed to hold up a horizontal T top wire antenna strung between the two of them.  At some point in the early thirties, somebody realized that the tower itself could be excited as a vertical radiator and the antenna configuration was changed. Up until the mid-1970s there was a horizontal wire which supported a third wire element hanging between the two towers, making it a three-tower directional array.  This was removed and it was then that the current phasor and two-tower DA-2 system was installed.

All in a day’s work.

WROW

WROW 590 KHz, Albany, NY is another one of those successful AM stations.  They have a music format, which I would characterize as a blend between nostalgia and oldies.  They do well in the Albany book and most importantly; make money.  The Wikipedia entry is a little dated, as they have had a music format for over four years now.  The low dial position helps, as I can get the station up near the Canadian border and most of the way down to Poughkeepsie during the daytime pattern operation, which is better than across-town WGY, 50,000 watts non-directional.

Here are a few pictures of the transmitter site:

Broadcast Electronics AM5E, WROW, Albany, NY
Broadcast Electronics AM5E, WROW, Albany, NY

WROW main transmitter

WROW transmitter room
WROW transmitter room

WROW transmitter room; main and backup transmitters, phasor, equipment rack, etc.

RCA BTA1AR former backup transmitter
RCA BTA1AR former backup transmitter

The former backup transmitter for WROW-AM. This was moved from the original transmitter site, located a few miles north of the current transmitter site in Glenmont, NY. The current transmitter site was constructed in 1974.

Onan diesel generator
Onan diesel generator

Backup power

WROW antenna array, three tower DA-2
WROW antenna array, three tower DA-2

WROW antenna array. The station transmits with 5,000 watts daytime and 760 watts night time. The towers are slightly tall at 105 electrical degrees. It is hard to do tall towers at the low end of the dial because the towers get very tall. These are 149 meters (488 feet) tall.