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 When Melanie and I got married in 1983,
part of her dowry included some of the toys she had as a little girl. A
Hasbro Lite-Brite
was one of them. Our kids played with it when they were young, but somewhere along
the line during our many household moves, it disappeared. We probably donated it
to the Salvation Army at some point - a lot of our stuff has ended up there. About
a month ago we started watching for a good one on eBay that didn't cost too much.
Finally, there was a 1967-vintage Lite-Brite in like-new condition up for auction
that we got for around $45. It has a nice box...
 Per "Wild Bill" Netzenband's report in this
1961 issue of American Modeler magazine covered the Vancouver Bi-Liners,
MAC highlights, Alan Nichols' success in Thompson Trophy Racer events, encouraging
clubs to adopt the affordable, and slow-flying contests. He addresses backlogged
club crest submissions, noting the impracticality of featuring all due to volume.
Alan Nichols debunks the myth that models wear out quickly, citing his year-old
Nobler and a five-year-old Fierce Arrow with original engine. Memories resurface
of McDonnell Aircraft's picnic air shows, where Phil Hamm's reliable metal jet stood
out. Southern California's new Control-Line Association, led by John Gudvangan and
others, seeks enthusiasts. Detroit's Metropolitan Speed Association unveils an $8,000
Rouge Park speed circle, aiming for a competitive...
 This article entitled "Why Pilots Will Matter
in the Age of
Autonomous Planes" appeared in the June 2025 issue of IEEE's Spectrum
magazine. "Long after planes start flying themselves, humans will still be in the
loop. In August 2001, an anonymous guest posted on the forum at Airliners.net, a
popular aviation website. 'How Long Will Pilots Be Needed?' they wondered, observing
that '20 years or so down the road' technology could be so advanced that planes
would fly themselves. 'So would it really be useful for a person to go to college
now and be an airline pilot if a few years down the road they will be phased out
by technology?' Twenty-four years later, the basic technology required to make aircraft
fly themselves exists, as evidenced by the fact that most commercial flights are
flown largely on autopilot..."
 This is the February 8, 1942, "Flyin' Jenny" comic strip. The Baltimore Sun newspaper, published
not far from where I grew up near Annapolis, Maryland, carried "Flyin' Jenny" from
the late 1930s until the strip ended in the mid 1940s, so I saved a couple dozen
from there. The first one I downloaded has a publication date of December 7, 1941
- that date "which will live in infamy," per President Roosevelt. Many Americans
were receiving word over the radio of the Japanese attack on Pearl Harbor while
reading this comic at the breakfast table. I expect that soon there will be World
War II themes. "Flyin' Jenny," whose real name was Virginia Dare (what's in
a name?), was a test pilot for Starcraft Aviation Factory who divided her time between
wringing out new airplane designs and chasing bad guys. She was the creation of
artist and storyteller Russell Keaton...
 This is the complete set of
Peanuts Skediddlers,
sold by Mattel. Linus is extremely difficult to find, and when you do, he typically
sells for $200 or more. If you find a Linus Skediddler with the original box, expect
to pay $400. Over time, our (Melanie and me) Peanuts collection of memorabilia has
grow from the few items she had left over from her girlhood to complete sets. Everything
was gotten via eBay auctions. It took a lot of patience to be able to get good quality
items at an affordable price. Here is a bit of history I gathered on the Skediddlers.
Phenomenon: In the mid-to-late 1960s, Mattel capitalized on the explosive popularity
of Charles M. Schulz's Peanuts comic strip by releasing the Skediddler - a line
of friction-powered toys. Unlike wind-up mechanisms, these toys relied on a simple
push-and-go design: sliding them across a surface activated internal gears, causing
the characters' limbs and heads to jerk in a whimsical "skedaddling"...
 This 1949 Air Trails magazine article
warns that the
Soviet
Union has surpassed the U.S. in military aircraft production by a 15-to-1 margin,
with advanced jet fighters, bombers, and long-range piston-engine planes already
operational. Soviet scientists have also conducted atomic tests and are close to
producing compact A-bombs. Intelligence reveals a Red Air Force of 15,000 first-line
aircraft, including 2,400 jets, some surpassing American designs. The Soviets broke
the sound barrier before the U.S. and have developed powerful turbojet engines,
some with innovative features like variable-pitch stators. German scientists and
captured technology accelerated Soviet progress, particularly in rocketry and jet
propulsion. Their aircraft feature advanced construction techniques, such as metal-plywood
sandwich wings, and superior armament...
 A long time ago (circa
1977) I bought a used glider winch at an auction held by the Prince Georges Radio
Club, in Maryland. It cost me somewhere around $25, which was a lot for me in the
mid 1970s. The motor and control circuitry was contained in a plywood box, with
a jack for the foot switch and terminals to clamp jumper cable to from a car. In
looking at these plans for the
AAM Glider Winch shown
here from the April 1973 American Aircraft Modeler, it looks a lot like mine, only
mine was in a wooden box. It worked extremely well for my 99"
Windfree and 99"
Aquila sailplanes. Unfortunately,
I sold it shortly after getting married in 1983 (couldn't eat the winch). I would
love to have it back. Actually, what I would rather have at this point is a winch
that is powered by a cordless drill that would be lighter...
 We take for granted most of the technology
that surrounds us. Unless you were alive 60 years ago at the dawn of microelectronics
and space flight, it would be difficult to imagine a world without cellphones, desktop
computers, color TVs, the Internet, and even
satellite-base weather forecasting. Everyone likes to make jokes about weathermen
being no better at predicting the weather than your grandmother's roomatiz[sic],
but the fact is that, especially for short-term (2-3 days) predictions, we get pretty
good information. As a model airplane flyer, I check the wind level forecast nearly
every day to see whether my model plane can handle it. AccuWeather's free hourly
forecast is usually pretty darn accurate for today's and tomorrow's wind...
 In this 1937 "Smoke Scream" in a 1937 issue
of Flying Aces magazine, by Joe Archibald,
Lt. Phineas
Pinkham, the 9th Pursuit Squadron's resident troublemaker, stumbles into chaos
when he encounters an elephant named Hungha Tin and its Hindu mahout. After the
elephant drinks a bottle of arnica meant for a local's backache, it goes berserk,
wreaking havoc across the Allied camp. Meanwhile, Brigadier Scruggs confesses to
Pinkham that he sleepwalked and handed top-secret battle plans to an unknown spy.
Pinkham, framed by the mahout - who's actually a German agent - unknowingly smokes
a drugged cigarette and nearly flies a stolen Spad to the enemy. The vengeful elephant
interrupts his forced defection, allowing Pinkham to escape with Hauptmann von Spieler
as his prisoner. Back at base, Pinkham...
 The Academy of Model Aeronautics is granted
tax-exempt status because part of its charter is for activity as an educational
organization. I think as time goes on, it gets harder for the AMA for fulfill that
part of its mission because presenting anything even vaguely resembling mathematics
or science to kids (or to most adults for that matter), is the kiss of death for
gaining or retaining interest. This article, "Control-Line
Aerodynamics Made Painless," was printed in the December 1967 edition of
American Modeler magazine, when graphs, charts, and equations were not eschewed
by modelers. It is awesome. On rare occasions a similar type article will appear
nowadays in Model Aviation magazine for topics like basic aerodynamics and battery
/ motor parameters. Nowadays, it seems, the most rigorous classroom material that
the AMA can manage to slip into schools is a box of gliders and a PowerPoint presentation...
 Peter Bowers first became know to me because
of his Fly Baby homebuilt airplane. It won the
Experimental
Aircraft Association (EAA) design contest in 1962. Back in the middle and late
1970s, I was taking flying lessons and dreaming big about building my own aerobatic
biplane. Being an avid woodworker, the Fly Baby appealed to me because it was constructed
entirely of wood, except for a few critical metal fittings. My plan was to build
the biplane version of the Fly Baby. Like so many other things, the aeroplane never
got built. Peter Bowers was not only an aeronautical engineer and airplane designer
but also an aviation historian and model airplane enthusiast...
 "FlightGear" is an Open Source (aka
Free) flight simulator program which I first wrote about in 2012. It has come a
long way - and was pretty dran good, aven back then - and is now a viable competitor
for Microsoft's Flight Simulator (MSFS). The leatest release as of this writing
is 2024.1.1. The graphics are superb and easily on par with MSFS. FlightGear has
a joystick interface, but I don't own a joystick, so my experience with it using
keyboard inputs. VR headsets are also supported now. The basic download comes with
a couple dozen aircraft, and there are many additional models available as separate
downloads. FlightGear runs on Windows, macOS and Linux. Thanks to all the folks
who have spent their valuable time developing FlightGear! FlightGear website: "FlightGear
is an open-source flight simulator. It supports a variety of popular platforms (Windows,
Mac, Linux, etc.) and is developed by skilled volunteers from around the world...
 The October 1950 Air Trails magazine
showcases
modelers' innovations, including H.G. Oliver's Plexiglas skids for speed models
and Don Nelson's booster battery setup. Ray Biernacki suggests keeping brushes soft
with thinner fumes, while Richard Larson offers a footswitch for bench testing.
Ted Jones improves dethermalizer safety, and Charles Francis simplifies its design.
Willard Hafler's flying wing excels in speed and sport flying, and Leon Shulman
repurposes a crankcase recess as a fuel tank. The magazine encourages readers to
submit their own ideas, paying $2 per accepted sketch. These practical, cost-saving
solutions highlight the creativity of mid-century model aviation enthusiasts, blending
engineering ingenuity with accessible materials - a snapshot of hobbyist innovation
in postwar America...
 "IEEE Spectrum interviewed Bertrand Piccard
at a pivotal moment in the hydrogen-powered aircraft project, with the plane, called
Climate Impulse,
about 40 percent built. Piccard spoke about the contributions of his corporate sponsors,
including Airbus, to the Climate Impulse project and about why he's confident that
hydrogen will eventually succeed as an aviation fuel. He'll fly around the world
in a hydrogen fuel-cell aircraft. Few explorers have reached the heights, literally
and figuratively, that Bertrand Piccard has. He is the quintessential modern explorer,
for whom every big mission has a purpose, which generally boils down to environmental
and climate-change awareness. In 1999, he was the first person to circumnavigate..."
 Amazingly, even during the Cold War years
it was not uncommon to see aircraft modelers from the "Iron Curtain"
countries participating in international contests. Even Commies like flying model
airplanes. Because their societies and politics were so closed and guarded, getting
information about their modeling supplies was darn near impossible except during
events where inspection could be made. Being a generally friendly bunch of guys,
the modelers would share their designs with the Free World, and vice versa. Then,
in subsequent years the Commies would show up with equipment that was exact replicas
of ours - copyrights and trademarks held no legal weight behind the Iron Curtain.
Truth be know, most or all of the participants were probably KGB agents (or other
Commie country equivalents) engaging...
 While talking to a lady working one of the
tables at the 2016 Brodak Fly-In (July 14, 2016), she happened to mention that the
Brodak Manufacturing &
Distribution operations plant is located about a mile away, right behind Brodak's
Hobby Shop in Carmichaels, Pennsylvania. I made sure to stop by after first visiting
the hobby shop. Brodak, unarguably the largest seller of control line models and
flying supplies, has the advantage of being its own manufacturer for most of its
products. Because of that, they are able to sell at the lowest prices possible for
a proprietary line of goods. Control line model airplane kits, nuts and bolts and
washers and other assembly hardware, flying lines and handles, landing gear, nitro
fuel, dope, thinner, adjustable line leadouts, balsa, plywood...
 The
1961 AMA Nationals (NATS) showcased American excellence in model aviation as
Joe Bilgri, William Bigge, and Carl Redlin dominated the World Indoor Championships
in England, with Bilgri's record 37-minute flight securing individual honors. The
event featured engineering marvels like Ken Spitulski's scratch-built radio-controlled
freighter and Paul Williams' Twin Ringmaster, a dual-engine stunt plane. Pan-American
Airways concluded its 14-year sponsorship of payload competitions, marking the end
of an era. Veteran modelers like Carl Goldberg rubbed shoulders with rising talents,
while unique designs such as Doug Joyce's canard-style "Lightning" demonstrated
the hobby's creative spirit. The competition also included lighter moments like
the Miss Model Aviation pageant and Testor's best-finish award...
|
 Back in the early to mid 1970s, I built a
Sterling Cirrus Sailplane kit. Shortly thereafter
I bought my first radio control system (a used 3-channel OS Digitron set), and in
a somewhat desperate attempt to fly an RC glider, actually managed to crammed two
of its huge servos, a huge metal-cased receiver, and a NiCad airborne battery pack
(the only part that has not gotten smaller in the intervening 40 years) into the
cockpit area. Although the cockpit was very spacious, the balsa frame construction
was way too weak to support a radio system, but that didn't stop me... well, not
right away anyway. The ready-to-fly weight was probably three times the recommended
12 ounce nominal. Although the Cirrus has a generous 87-5/16" wingspan, with it
25:1 aspect ratio, the root chord is only a little over 4" and the wingtip chord
is around 1"...
 Now here's a term I had never heard before:
"desmodromic valve." I thought it was something that Cox made up by borrowing the
"drom" part of Thimble Drome. Not so. According to Wikipedia, "In general mechanical
terms, the word desmodromic is used to refer to mechanisms that have different controls
for their actuation in different directions." It describes the type of valve used
in the full-scale Mercedes-Benz W196 Racer. The Cox model uses their famous .049
glow fuel engine. There is an ocean of information available on Cox engines, cars,
helicopters, boats, and airplanes. The
Cox Mercedes-Benz
W196 was a scale model of the real Formula One car that ran in many European
Grand Prix races. The mechanical features were quite sophisticated, including a
flywheel with integrates fan for cooling the engine, spring-loaded suspension, and
an adjustable muffler for desired quietness/power tradeoff, and careful engineering
to assure compatibility of hot metal parts against molded plastic. The Cox Mercedes-Benz
Racer on occasionally shows up on eBay, but be prepared for a shock price tag compared
to the original $20 back in 1961 when this article appeared in American Modeler
magazine...
 When I first began perusing the large collection
of Flying Aces magazines that I bought on eBay, I enthusiastically read all the
fictional adventure stories of, well, flying aces, like Richard "Dick" Night, Kerry
Keen (aka "The Griffon"), "G−2" secret agent Cap. Philip Strange, Battling Grogan
and his Dragon Squadron, and others. For some reason I skipped over the adventures
of
Lt. Phineas
Pinkham, of the 9th Pursuit Squadron. Maybe it was because of the way he was
drawn that I figured it was just a dumb story about a hayseed doofus and wouldn't
be very good. One day I decided to actually read through one of the stories, and
much to my surprise discovered that the series was as good as any of the other aforementioned
yarns - with a lot of humor to boot. Lt. Pinkham is sort of the Boonetown,
Iowa, World War II version of LA police detective Lt. Columbo (whose first
name we were never made privy to). As did I, people assume he is a bumbling fool
who couldn't figure out the simplest of schemes by nefarious evil-doers, but in
actuality he is an extremely clever strategist and prankster who, in the manner
of the famous Canadian Mountie Dudley Do−Right, "always get his man." See if you
agree...
 Canard airplanes - those with the horizontal
stabilizer forward of the wing - have been around for a long time. In fact, the
Wright Brothers' airplanes were canards. They tend to go in and out of style. It
seems all of a sudden articles will appear in all the model magazines for a couple
months, and then they disappear for a few years until something makes them popular
again. For full-size airplanes, it probably wasn't until Burt Rutan came on the
scene in the early 1970s with his Varieze (and later the Long-EZ). That started
another wave of canard models. Than, as usual, they faded from view. A decade later,
the Beechcraft Starship emerged as the first commercial jet canard. The Eurofighter
is now the most prominent canard. For a particular configuration to really rule
the model airplane scene, it needs to win big at national and international contests.
So far, that has not happened...
 To the left is Melanie with her
gaf View−Master "Tour Theatre" set that she had as a little girl.
She took better care of her stuff than I did, so a lot of her toys and dolls are
still around decades later. It came with a Standard 30−watt projector and a hand−held
stereo viewer. Also included was a nice case and a few reel sets with various places
around the world*. Being a Peanuts fan like me, she had a couple 3−reel sets: "Snoopy
and the Red Baron," and Peanuts." We have a "Little Drummer Boy" and "Dennis the
Menace" set, too. The others are long gone. I had just a hand−held viewer. The hand−held
View−Master viewer that created a 3D scene by using a pair of stereoscopic images
fed individually to each eye. One of the Peanuts reels has a frame showing how those
stereoscopic images were ...
 While perusing the local Goodwill store, Melanie
and I happened upon this old
gooseneck
lamp. Unlike most of the newer models found in places like Walmart, this one
is made of heavy stamped steel, and the gooseneck part is very sturdy with no plastic.
When you bend this lamp into position, it stays exactly where you put it without
reflexing back a little. It was just what Melanie needed for use on her sewing table,
so we bought it as a fixer-upper. As can be seen in the photos, the original condition
was useable, but not ...
 This notice just appeared on the AMA's
National Model Aviation Museum website: "New Addition: Helicopter
Kite Kirt Blattenberger (AMA 92498) and Steven Krick recently donated two older
kits to the museum, including this
Parris-Dunn Little Bobby Helicopter Kite kit." The second kit,
not yet featured on the AMA website, is the
Guillow
No. D4 Menasco Trainer kit. Both were generously given to me by
Mr. Steven Krick, who is an accomplished modeler of highly detailed
plastic static scale model airplanes and a collector of vintage balsa free flight
models. In response to my providing some Silkspan covering information, he offered
to let me select from a list of kits, and seeing these two and the likely rarity
of them, I submitted them the the museum for consideration. They appreciatively
accepted them.
 Some of the adventure stories in Flying
Aces magazine were practically full-length novels. The May 1934 issue included
one of Donald Keyhoe's pieces entitled, "Death
Flies the Equator," featuring intrepid G−2 agent, Dick Knight, and his sidekick,
Lothario Doyle, who team up to pit good against evil across the globe. The notorious
"Four Faces" cabal fixed on achieving world domination are a constant challenge
for the wits and wile of our heroic pair. Dick Knight supplies the brunt of required
brainwork while ex-Marine Doyle breaks bones and faces when needed. Both are accomplished
airborne dogfighters, avigators (archaic term for aviator / navigator), and mechanics.
Many of these stories involve fantastic weapons and deception devices, sabotage,
moles, traitors, and incredible feats of flying. They really are "page-turners,"
and the only things that keeps me from reading straight through is wanting to be
able to spread the entertainment across the span of several night's reading in bed.
Unlike most magazines of yesterday and today, Flying Aces usually...
 For some reason, in more than half a century
building and flying model airplanes, I have never owned or operated a
diesel engine. I have nothing against them, and in fact would like to procure
and run one, even if just on a test stand, before assuming dirt temperature. Diesels
have a couple advantages and disadvantages compared to glow fuel engines, according
to my recollection from reading about them over the years. Compared to glow fuel
engines, diesels produce less power for a given volume displacement. The absence
of a glow plug can make them more difficult to start, especially when hand-flipping
and/or in cold weather. To their credit, diesels are not quite as...
 These are not your father's bombs; in fact,
they're your great-grandfather's bombs. Note that per the title "Bombs of
the World War," there was no "I" or "1" appended to it. That is because as we
learned in grammar class in elementary school while being instructed on creating
outlines, one does not assign a number "1" or a letter "a" or "A" if there will
be no number "2" or letter "b" or B." Since what we now refer to as World War I
was "the war to end all wars," there was no expectation that there would someday
be a World War II. Hence, up until the end of 1941, people referred to the
28 July, 1914 through 11 November, 1918 conflict simply as the "the World War" or
"the Great War." But I digress. Many of the bombs shown here were tossed out of
the cockpit by either the pilot or back seat bomber/gunner. BTW, when I saw that
the Whitehead Aircraft Torpedo supposedly had an 8,000 yard (24,000 feet, or 4.5
miles) range running on compressed air...
 1938 was still two decades away from when
America would launch its first Earth-orbiting satellite (Explorer 1, 1958)
and three decades from when man would first
walk on the moon (Apollo 11, 1969), yet work was well underway by enthusiastic
aerospace engineers, scientists, astronomers, project managers, and others to accomplish
those goals. While this Boys' Life article boasts of rockets attaining
speeds of 800 miles per hour, leaving Earth's gravitational pull for a trip to the
moon would require a escape velocity of 25,000 miles per hour. Telescopes powerful
enough to survey the moon's surface for determining a safe location for landing
were being readied with telescopes like constructed 200-inch Hale reflector, having
seen first light just nine years earlier. This type illustrated feature page was
common each month...
 In this article appearing in the 1960 Annual
edition of Air Trails magazine, author Robert Angel introduces his "Uni−Flow"
concept for U-Control (aka control line, C/L) model airplanes. His method modifies
the standard wedge type metal fuel tank to operate on the same principle as an office
water cooler. By adding a strategically placed additional brass tubing vent, Mr. Angel
contends the pressure on the inside of the tank remains fairly constant as the vacuum
from the engine's carburetor draws fuel. This is preferred to pressurizing the fuel
tank via either a tap on the crankcase or off the muffler (which there were not
a lot of in 1960. Whether or not the Uni−Flow arrangement is any better than a standard
vent line or pressurization is still a matter of debate half a century later, as
can be seen in this StuntHanger.com forum thread. In fact, it seems the standard
C/L metal fuel tank is a form of uni−flow...
 Whilst waiting for the Canadian snow to
subside, Steven built a second Ace Whizard, this time with a cox TeeDee .049
engine and a separate 2 0z. fuel tank. That should extend the flight time from
2-3 minutes with the Black Widow .049 to 8-10 minutes. The TeeDee should provide
a little more power as well. The Whizard began appear in Ace R/C advertisements
around 1974. See Steven's building article that has lots of good photos ...
 Some companies
have expressed an interest in being able to target Airplanes and Rockets via the
Google
AdSense program. Yes, it is possible to do that. As you might expect, finding
the exact information on the Google AdSense website is a bit difficult. This short
video does a good job summarizing exactly how to implement the "Ad Targeting" option,
then "Placements," and then add "Websites." Just enter airplanesandrockets.com
. There are other settings to optimize your advertising campaign with keywords (both
included and excluded), pricing, scheduling, statistical data collection and reporting,
etc. If you are currently using Google AdSense, then please consider this method,
and if you are not using AdSense, now would be a good time to look into it. I have
had reports from some companies that experience great results using AdSense (not
just on Airplanes and Rockets)...
 This 4-view for the
1933 Boeing
P−26A Peashooter was scanned from my purchased copy of the June 1968 American
Aircraft Modeler magazine. 4-view for this fine model was drawn by Mr. Björn Karlström.
All copyrights (if any) are hereby acknowledged. "The all-metal, single-wing P−26,
popularly known as the "Peashooter," was an entirely new design for Boeing, and
its structure drew heavily on the Monomail. The Peashooter's wings were braced with
wire, rather than with the rigid struts used on other airplanes, so the airplane
was lighter and had less drag. Its initial high landing speeds were reduced by the
addition of wing flaps in the production models...
 This is a very interesting article about
the
FCC's "Secrecy of Communications" rules. Manmade radio interference (QRM in
Ham lingo), has been a problem since the early days of wireless communications.
You might convincingly argue that it was worse at a time when many transmitters
were of the arc type that basically spewed out a mess of RF energy within a specified
bandwidth (very wide compared to today) to signal the presence of a "dit" (a digital
"1"), with the absence of a signal being a "dah" (digital "0"). Filter technology
for both the transmit and receive sides was also poor, allowing unintentional RF
noise to be sent over the air and to find its way into the detector circuits. The
Federal Communications Commission (FCC), first formed in 1934, nearly four decades
after Guglielmo Marconi first demonstrated his wireless set in 1896. Sometime around
1952, the FCC allocated a half dozen frequencies in the 27 MHz for radio control
(R/C) model use, mixed within the existing citizens band (CB) radio channels. As
you might imagine, interference problems were rampant, especially near metro areas
and highways with heavy truck traffic. This editorial in a 1969 issue of American
Aircraft Modeler magazine reports on just how bad things had gotten, especially
that caused by operators using faulty and/or illegally modified transmitters, and
even by malicious intentional attempts to "shoot down" model airplanes by keying
transmitters in the vicinity of flight activity. In 1965, the FCC allocated...
 Radio
control (R/C) systems operating in the 2.4 GHz ISM band, using one of or
a combination of frequency hopping and direct sequence spread spectrum scheme, have
been in widespread use since the early 2000s. As with any new technology, there
was a lot of reluctance to adoption of the systems based on a few reports (valid
or not) of performance issues - primarily lack of control range where communications
between the transmitter (Tx) and receiver (Rx) with a pilot and aircraft was lost
and a crash ensued. Tx power was already at the FCC-mandated maximum, so manufacturers
quickly improved receivers by adding diversity with a second Rx antenna. The receiver
microprocessor continuously monitors signal integrity from both antennas and uses
the best one. It is the same scheme that was already being used by WiFi routers
also operating at 2.4 GHz... |
