A nice pair

I am reminded of a Pink Floyd compilation album from the very early 70s. The music dates back to the late 60s and Syd Barrett. Poor Syd; shine on you crazy diamond!

I recently finished installing these rather nice GatesAir FLX-40 transmitters:

WXBK-FM New York, GatesAir FLX-40 x 2 installation

Audacy New York decided to move 94.7 from the East Orange, NJ location down to the WOR transmitter site in Rutherford, NJ. Acting as contractors for GatesAir, we installed these two transmitters. I can say, I like the liquid-cooled transmitters for several reasons. First, once installed, they seem to be very stable. I believe that the cooling scheme helps prolong the life of the RF devices by keeping the junctions at a constant temperature. Those semi-conductor junctions are tiny for the amount of current that they need to handle. Second, they cost less in the long run to operate. Anytime a refrigerant cycle can be skipped, that reduces or greatly reduces the electrical use. The Heat Exchangers in this system use VFD’s for fan motor control. That means more constant control over the HTF temperature and reduced electrical use on the fan motors themselves.

Heat Exchangers
Dual pump stations

The pump stations have backup pumps as well. In the newer transmitter firmware, the pump control needs to be set up to automatically failover to the standby unit. It is a couple of clicks in the GUI to do this.

BDI inline watt meter
ERI antenna

We didn’t have anything to do with the antenna installation, however, it is a good-looking antenna! ERI 4 bay 3 around mounted on one of the WOR towers.

Overall, this was a good project. Lots of moving parts during the installation, but we were flexible working with the client and other contractors and sub-contractors on site.

From the not too distant past…

And when such things were important:

Important Memo

While cleaning out a closet at home, I found a 3.5-inch disk with some interesting memos. When I left WGY in the spring of 1996, I made a backup copy of all the items in my documents folder. I figure it was an intelligent thing to do since I was still working for the same company in the role of Director of Engineering.

In those days, management wanted a precise accounting of all off-the-air incidents. The studio was staffed with a board operator who monitored the air signal at all times. Anytime the carrier dropped, there would be a note in the transmitter log. Those 5 second interruptions are likely due to thunderstorms. Lightning would strike somewhere nearby inducing an EMP on the tower. The venerable MW-50B would kill the PDM for a brief period as protection from VSWR. If I were at the transmitter site, the insulators in the guy wires would start crackling anytime a storm was within 10 miles of the site.

The helium balloon incident involved one of those metallic helium party balloons which escaped and ended up tangled in the 240-ohm open wire transmission line. This caused multiple VSWR trips for both the main and backup transmitters. I remember pulling up to the site and having a bit of a chuckle. By the time I got there, the balloon had mostly been burned into oblivion by the RF and the station was back on the air.

Another interesting item is our standard reception report form letter:

WGY reception report letter; name and address redacted because of the internet

These were printed out on WGY letterhead and mailed. I sent out several of them every week. I think the furthest away was Cape Town, South Africa.

A little bit of catching up…

I regret not having enough time for writing these days. There are a number of reasons for this. Firstly, much of what I do running my business is mundane and not worth noting. For example; today I am going over work reports and reconciling the bank account. Necessary, but about as exciting as watching the grass grow or reading about drying paint.

However, the rest of the time I have been working on various projects around the northeast, to wit:

In Boston, I took part in converting an LPTV station to ATSC 3.0. That was interesting and I am enjoying the TV work.

WCRN-LD exciter GUI
Boris Johnson resigns, also one of the first ATSC 3.0 images transmitted OTA in Boston, MA

In Syracuse, we had to lower a TV transmitter from the 23rd floor to the 22nd floor on the outside of the building. The transmitter itself became marooned because an electrical conduit for an alarm system was installed restricting the size of the stairwell.

Carefully lowering a 2KW UHF TV transmitter, State Tower Building, Syracuse, NY
Transmitter re-assembled and on the air

Fortunately, we hired a moving company to do this. I am pretty sure that our insurance does not cover damages from transmitters falling 22 stories.

In NYC, I installed two FLX-40 transmitters for GatesAir.

WXBK FLX-40 transmitters, Rutherford, NJ
FLX-40 Heat Exchangers
“Do you see over yonder, friend Sancho, thirty or forty hulking giants? I intend to do battle with them and slay them.” “Take care, sir, those over there are not giants but buildings on the island of Manhattan.”

In Kingston, NY a used BE AM1A (along with a coax switch and dummy load) was installed at WKNY.

Slightly used BE AM1A installed as backup at WKNY, Kingston, NY
7/8 inch coax switch and 2.5 KW oil cooled test load suspended from the ceiling

It is nice that this station has a decent backup transmitter to buttress the aging, yet very reliable Nautel ND-1.

Even though it is a short drive away, I had never visited the 1969 Woodstock Music and Art Fair site in Bethel, NY. It was interesting and being sort of an audiophile, I enjoyed this exhibit in particular:

Your author, standing in front of a “Woodstock Bin.”
Back of high-frequency horns

From the display:

This speaker stack sat on scaffolding high in the air… festival sound engineer Bill Hanley custom-built eight speaker cabinets for Woodstock, amplifying music and stage announcements across the large festival site… Afterward, the design would be known in the industry as the “Woodstock Bin.”

Bethal Woods Performing Arts center Museum, August 10, 2022

The high-frequency horns used Electrovoice diaphragm S/A compression drivers. I don’t know which driver was used for the bins.

Site of Woodstock ’69 stage, looking up into the field
Looking down from the field to the stage area. Person(s) for scale.

I am also writing articles for Radio Guide, I hope that you are enjoying them!

The State of Media in Russia

I read with interest the Radio World Article: Why reviving Shortwave is a non-starter. The main premise of the article is that reviving Shortwave broadcasting to Russia is just wishful thinking. Since I am still in contact with persons in Russia, I figured I would attempt to ask them what they thought about it (without putting them at risk, of course).

The short answer; the opinion by Daniel Robinson and Keith Perron is correct. Shortwave is a non-starter in Russia. I asked a series of questions of my Russian friends and received the following answers:

Question: Do Russians own AM/FM radios?

Answer: Yes, especially those with cars. Most listening to analog AM or FM radio is done in cars and sometimes at work wearing headphones.

Question: How about Shortwave or Longwave sets?

Answer: Amateur radio operators and some hobbyists may own these radios, but not the general population.

Question: Are there any leftover shortwave sets from Soviet times/the cold war period?

Answer: Not likely, and if there are, they probably don’t work. Soviet equipment was not high quality.

Question: What about listening to the radio at home?

Answer: Not very many people do this. Most people watch TV while at home or stream movies.

Question: Where do most people get their news?

Answer: The state media TV services (Russia-1 or Channel-1). A few people may stream news from overseas, although this is getting harder and harder to do. Anyone who does this will likely use a VPN.

Question: How many people can find, download, install, and configure a VPN?

Answer: Mostly young people will do this, but it is getting harder to find VPN apps. They are getting removed from online sources and people are afraid to install them on their mobile devices in case they have interactions with the police. Approximately 10% might be using a VPN.

Question: Could Russia disconnect the internet completely from the rest of the world?

Answer: Yes, but it would be difficult. The internet in Russia was not designed to do this the same way as say North Korea or the Great Firewall of China. There are many physical connections out of the country and not everything is well documented. It is much more likely that they will block, censor and track users rather than completely disconnect.

Question: Are there any sources of outside information available in Russia right now?

Answer: For those that are searching for it, yes but likely not for much longer.

Question: If Radio Free Europe/Radio Liberty were available on AM/FM or Shortwave, would people listen to it?

Answer: No one cares. Unlike during Soviet times, no one really cares about western news or opinion. Things changed in 2014 with the first set of western sanctions. The cultural ministry (Roskomnadzor) began blocking access to internet sites they deemed detrimental. There were few independent media voices left. With the 2016 US election and anti-Russia investigations, most Russians believe that the west is turned against them. The news, as presented on Russia-1 is believed as true.

As a radio professional, I believe in the medium including HF broadcasting. The point of my Russian friends; even if the programs were directly receivable via radio (of any type), most Russian people would ignore them. It is not a technical matter of getting programming to them. It is more a perception problem, brought on by years of propaganda and negative press from the west. If shortwave had been reinstated in 2007 when the first signs of censorship began to appear in Russia, things might be different. Instead, no one seemed to notice or care.

HF broadcasting, like all radio services, can be effective when nothing else works. Much of the VOA’s HF service is targeted to Africa and Cuba, two places that do not have a high percentage of internet users. It is very expensive to build and operate. To revive HF, it will need to get smaller and less expensive. DRM (Digital Radio Mondial) shows promise in this regard, but there is a dearth of available receivers (a quick search on Amazon nets zero usable results). Instead of trying to burn holes through the ionosphere with giant 500 KW AM modulated transmitters coupled to huge antennas with +20 dB gain or more, smaller digitally modulated transmitters with simpler antennas could net the same or better results. If these systems were placed closer to the intended target audience, so much the better.

Clearly, the world has changed. It is time to re-examine (and perhaps update) some of this old technology for 21st-century use. Whatever happens, there are no short, quick, or easy answers. It took decades of time and a momentous effort to bring western ideas to the communist block. This was all undone in a few years by budget cuts.