Category Archives: Civil Defense History

When Wires Are Down: 1948

1948JunQSTThere was a time when electronic communications meant wires running from city to city. In the United States, these were the telephone lines owned by The Phone Company, or telegraph lines owned by Western Union.  If those lines were knocked down due to some kind of natural disaster, then whole communities could be cut off from the rest of the world.

When that happened, Amateur Radio might serve as the only link.  And 75 years ago this month, the June 1948 issue of QST announced that Western Union had reinstated a cooperative program with the ARRL to ensure that hams were available as backup “when wires are down.”  It was a reinstatement because Amateur Radio had been off the air during the War, and the program originally dated to 1939, as announced in the June 1939 issue of QST.

The ARRL was able to “give W.U. a list of Emergency Coordinators (EC), so in any pinch, the W.U. local managers will know who to call upon for coordinated information on the active amateur stations, radio schedules, points in radio nets, local emergency-powered outlet, and so on, so
necessary emergency traffic might be filed.”  For their part, Amateurs were encouraged to fill out ARRL Form 7 and give it to their EC to sign up as members of the Amateur Emergency Corps.  In fact, the blank forms were available at Western Union offices, and could even be dropped off there, with Western Union routing the forms back to ARRL headquarters.

In reports of disasters, it wasn’t uncommon to read that hams had assisted Western Union when the lines were down.  For example, during the 1940 Armistice Day Blizzard, Sherm Boen  of Albert Lea handled traffic for the railroad, since a dispatcher in southern Minnesota needed permission from Minneapolis before sending a snowplow north.

These days, it’s unlikely (but not totally inconceivable) that the normal telecommunications networks will fail completely.  In addition to ground-based lines, there are multiple satellite options available for linking various communities.  So it’s unlikely that an internet service provider or phone company will call hams for assistance with restoring their networks.

However, it’s not unheard of for individuals and families in areas hit by disasters to be cut off from the outside world.  The ability to send a short message to family or friends in other states could be a major morale booster, and could be extremely helpful in reuniting families separated by disasters.  Hams spend an inordinate amount of time trying to find a “served agency” to whom they can offer their services.  But radio communications today isn’t exactly rocket science, and those agencies can probably have communications in place operated by their own personnel.

WFD1But hams still have a major strength, and that is the fact that they are widely dispersed around the country, mostly in residential areas.  In other words, if there is a local or regional disaster, they are already there, and they can begin communicating immediately.  As exercises such as Field Day and Winter Field Day prove, they can be on the air immediately, even if power is out, and even if part of their station is damaged.  A wire antenna can be put up almost anywhere, hooked up to an HF rig and car battery, and communications are immediately established.  Even the most modest of VHF rigs can provide local communications with other hams.

It seems to me that individual hams should figure out how they can serve their neighbors in time of emergency.  In my case, I will simply make it known, perhaps with a sign in the front yard, that I can send short messages to anyone, just about anywhere, via Amateur Radio.  I have multiple radios that can be pressed into service, and all I need is some wire to build an antenna.  For power, I have multiple options, such as a car battery, flashlight batteries, or a solar panel.  I can be on the air almost immediately, and stay on the air more or less indefinitely.  I don’t need any agency to serve.  My license is the only authorization I need to offer my services to my neighbors.



Electric Sentry for Air Raid Warden: 1943

1943MayPM5Eighty years ago, this west coast air raid warden was subject to call at any moment, but he might need to be somewhere in his house other than next to the telephone. His solution was to use something called an “electric sentry” to alert him.

As near as I can tell, an “electric sentry” was a one-way intercom, which used the house wiring to transmit the signal. The transmitter was plugged in near the telephone ringer. He could then carry the receiver to another room in the house, or even a neighbor’s house, with the assurance that he would hear the ringing phone.1943MayPM6

Here, he appears to have the sentry receiver nearby while he repairs a radio. His daughter assists him by trying on his warden’s helmet. The transmitter is shown at right.

The item appeared in the May 1953 issue of Popular Mechanics.



Using the CB in Emergencies: 1973

Screenshot 2023-03-31 10.12.36 AMOur younger readers might find this hard to believe, but there was a time when you didn’t have a phone with you while driving. If you were in your car, you were cut off from the rest of the world. Nobody could call you, and you couldn’t call anyone else. As alien as the concept might seem, you might need to wait to talk to someone!

Believe it or not, being incommunicado in this way has its advantages. It gives you the opportunity to relax, without being bothered by someone else’s trifling concerns. Of course, on rare occasions, there are legitimate emergencies. If you car broke down, you would either have to hike to the closest payphone, or wait until a good Samaritan stops to help. Believe it or not, good Samaritans were more common then, because they realized you didn’t have a phone. Today, when people see a stranded motorist, they assume (usually, but not always, correctly) that the person has a phone. But back in the day, when you saw someone by the side of the road in trouble, you knew that unless someone stopped, they wouldn’t get any help. Armed with that information, it wasn’t uncommon to be the someone, and stop to help.

Of course, most good Samaritans are good, but there are also bad people who might take advantage of someone, especially a woman, helplessly stranded by the road. Therefore, having some mechanism to communicate, especially if you were a woman, wasn’t a bad idea. The billboard above highlights this fact, and it was seen on American highways fifty years ago, as shown here in the April 1973 issue of Popular Electronics.

Screenshot 2023-03-31 10.49.55 AMThe magazine highlighted the efforts of REACT and other CB clubs and organizations to provide someone to respond to such emergencies.  Since 1970, channel 9 had been designated as a channel for emergencies and motorist assistance.  In most areas of the country, REACT and other groups did an admirable job of monitoring channel 9, and the magazine provided a summary of those efforts, and pointers on using your CB in case of emergency.  It noted that in addition to routine monitoring of channel 9, many groups assisted with civil defense and emergency communications.  It encouraged CB’ers to monitor channel 9 whenever possible as a backup, but it did encourage waiting for organized groups to help before jumping in, since this encouraged people to join the organized groups.  One popular activity by such groups was providing coffee to motorists on holiday weekends, as shown here.

The billboard shown above was provided by the Electronic Industries Association as a public service.  The magazine provided details on how local CB clubs could contact outdoor advertisers to obtain the materials for the sign.



1943 Air Raid Tip

1943MarPM1Eighty years ago this month, the March 1943 issue of Popular Mechanics showed this preparedness tip. During an air raid, the first thing you would of course grab would be the radio. This cloth cover fits over the set and contains other items needed during a blackout. As an added bonus, it covered the front and back of the set to keep any light from leaking out.



Eclipse Litigation.

1953 CD Communications Truck

1953MarRadioNewsThe cover of the March 1953 issue of Radio News showed the new mobile communications unit for Philadelphia’s Civil Defense. According to the magazine, the unit featured complete and flexible facilities for all type of two-way communications, as well as a public adress system. It featured its own 15,000 watt power plant, along with both heating and air conditioning. In addition to police and fire frequencies, the 2, 10, and 75 meter amateur bands could be covered, permitting communications with other cities throughout the United States. And thanks to the Bell System, it included mobile telephone equipment as well as capability of up to 16 phone lines.

1953MarRadioNews2



War Emergency Radio Service, 1943

1943FebRadioRetailing2We’ve previously discussed the War Emergency Radio Service (WERS), a wartime civil defense service set up to harness the talents of amateur radio operators who were otherwise off the air for the duration of World War II.

Eighty years ago this month, the February 1943 issue of Radio Retailing takes a look at how the local radio dealer might fill part of the need in supplying equipment and expertise. The illustration shown above is a mobile repair facility, and undoubtedly some of the personnel shown here service radios as their civilian job as well.

In addition to radio operators, a role likely filled by hams, the dealers might fit into one of five other categories: Maintenance, procurement, construction, repair, and training.



1943 Emergency Generator

1943FebQSTEighty years ago this month, the February 1943 issue of QST showed this emergency generator. Hams might have been off the air for the duration, but they still had an interest in emergency needs, including WERS operations.

It was powered by a Briggs & Stratton gasoline engine normally rated at 1-3/4 HP, but the accompanying article noted that it was capable of up to 2-1/2 HP maximum as shown here. It was capable of putting out 120 volts thanks to a salvaged Dodge 12-volt generator, rewound, and was capable of putting out over 1400 watts. The field coils needed power, and that was provided by a second six-volt generator also driven by the engine.

The estimated cost of the whole unit was said to be $7.50, although the author admitted that this figure might have been somewhat “under-exaggerated.” The set shown here was the second one constructed, and a third was underway.

One of the gentlemen shown on the cover, although they’re not identified, was apparently Warren Copp, W8ZQ. The article mentioned that he was the father of then-eight-year-old actress Carolyn Lee.  We’re not sure exactly why that’s relevant, but like the author of the QST article, we believe that’s the kind of thing our readers would want to know.



1942 WERS Transceiver

1942DecRadioNewsThis woman is providing civilian defense communications as part of the War Emergency Radio Service, using a 112 MHz transmitter-receiver shown in the December 1942 issue of Radio News.

The set was completely self-contained. It’s transmitter section put out a hefty ten watts, and the batteries and dynamotor were built in to the cabinet. Both the transmitter and receiver could tune the entire 112-120 MHz band.

1942DecRadioNews2



1942 Boy Scout Civil Defense Messenger

1942OctBLEighty years ago this month, this unnamed Scout performing his civil defense duties is shown on the cover of Boys’ Life magazine, October 1942. His armband is the insignia of a civilian defense messenger, but all we know about him comes from his uniform, that he is that he’s a Patrol Leader of Troop 3 in Mt. Vernon. Unfortunately, there are dozens of towns named Mt. Vernon in the U.S., but his uniform doesn’t indicate the state.

This issue of the magazine talks about other Scouts engaged in defense related activities, but doesn’t specifically talk about the Scout on the cover. But the magazine gives an important clue, namely, the identity of the photgrapher, Emil Brodbeck, whose Amazon author page reveals that he was obviously an accomplished photographer.

According to Brodbeck’s 2003 obituary, he was born in Mt. Vernon, New York, and resided there until 1987. And according to this newspaper article, there was a Troop 3 in Mt. Vernon, NY, in 1955. So it seems very likely that this Scout was doing his part to serve the citizens of that New York community.



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1952 Omaha/Council Bluffs Floods

The spring of 1952 brought record floods to Omaha, Nebraska, and Council Bluffs, Iowa. One of the critical needs was patrolling the dikes, and local hams were pressed into action for the job. For ten days and nights, volunteers manned the dikes constantly, reporting any leaks or signs of weakness back to city hall. From there, emergency crews were dispatched to shore up any weak spots.

The equipment used here consisted of Motorola Walkie-Talkies. The equipment was supplied by the Union Pacific Railroad, and operated on the railroad’s frequency of 160.29 MHz.

This report appeared in the July 1952 issue of Radio News, July 1952,