Airplanes and Rockets website visitor Dan V. wrote asking
that I scan and post this article on the TRANSROC from the June 1971 edition of the Estes Model
Rocket News publication. It did note present any technical information, but fortunately the entire
very detailed TRANSROC User's Manual
is available on the SpaceModeling.org website.
Estes TRANSROC Model Rocket Locator Beacon Module
"Hey, this is
GREAT!" Can't you just hear your friends when you fly your model rocket with the Estes TRANSROC--the
latest in miniature Space Age electronics? You'll have lots of fun, too, becoming an expert with this
multi-purpose transmitter that will literally transform your model into a "talking bird."
Jo Angel, a member of the Estes Rocketeer Communications Department staff, is shown
placing a TRANSROC (in the microphone mode) in the payload compartment of a rocket. Hole in payload
section is for tuning antenna-matching coil.
You can start by using the TRANSROC as a rocket finder-- its most basic mode - - to retrieve lost
birds using your walkie-talkie. Then as the TRANSROC bug bites you, you can add sophisticated Estes
TRANSROC accessories that will bring you even closer to being a real space scientist.
The TRANSROC is just over four inches long and fits neatly in a BT-50 paper body tube (or PST-50
FJ clear plastic body tube), and can easily be adapted to larger rockets. It is powered by a 15-volt
battery with a life of up to 24 hours and transmits on any of the 23 channels in the 27 Megahertz (megacycle)
Citizens Band which you specify. Normally, the crystal supplied will be Channel 11 or Channel 14 to
match the walkie-talkie units available from Estes. No FCC license is required to operate the TRANSROC.
and thoroughly illustrated instructions on assembly, theory, and operation are supplied with the Estes
kit. If you have previous experience building electronic devices, you can assemble the TRANSROC yourself.
If not, you may prefer to purchase a pre-built TRANSROC.
In its basic rocket-finder mode, the TRANSROC emits a "beep" which, depending upon the level of interference
present and the sensitivity of the receiver used, can be picked up at distances of up to five mile
s or more during flight and up to a few hundred yards after landing.
Once you have mastered the operation of the basic TRANSROC transmitter, you are ready to add any
of the accessories that will give you many hours of educational enjoyment. You become highly involved
in the flight as you listen to your rocket send data back to its own "Mission Control" on the ground.
Using the transmitter's printed circuit board, you can, for instance, add a miniature microphone
and record in sequence from your receiver the sounds from on board the rocket: countdown, lift-off,
coasting, parachute ejection, descent, and landing. Playing the recording back at your next club meeting
will make a hit.
Another accessory for the TRANSROC is a spin-rate sensor that tells you how fast your rocket is spinning
as it streaks upward. There is also a temperature telemetering kit.
The TRANSROC possibilities are not limited, however, to the Estes accessories. Let your imagination
run free! Designing and building your own telemetering components for use with the TRANSROC can give
you an even greater feeling of achievement in the ever expanding field of model rocketry.
Posted December 22, 2016