|Click to enlarge||*NO LONGER AVAILABLE / DISCONTINUED* |
Monitors The Entire Aircraft Band...
WITHOUT ANY TUNING!
- Monitors the entire aircraft band without
- Passive design, can be used onboard aircraft,
no local oscillator, generates and creates no interference whatsoever!!
- Great for air shows!
- Patented circuit and design!
- Do it yourself electronic kit, or factory
assembled and tested ready to go
For decades we have been known for
our novel and creative product designs. Well, check this one out! An
aircraft receiver that receives all nearby traffic without any tuning.
It gets better... there is no local oscillator so it doesn't produce, and
can't produce, any interference associated with all other receivers with an
LO. That means you can use it onboard aircraft as a passive device!
And what will you hear? The closest and strongest traffic, mainly, the
one you're sitting in! How unique is this? We have a patent on it, and
that says it all!
This broadband radio monitors transmissions over the entire aircraft band of
118-136 MHz. The way it works is simple. Strongest man wins! The
strongest signal within the pass band of the radio will be heard. And
unlike the FM capture effect, multiple aircraft signals will be heard
simultaneously with the strongest one the loudest! And that means the
aircraft closest to you, and the towers closest to you! All without
any tuning or looking up frequencies! So, where would this come in
At an air show! Just
imagine sitting there listening to all the traffic as it happens, even
the unknown frequencies!
Onboard aircraft to listen
to that aircraft and associated control towers
Private pilots to monitor
ATIS and other field traffic during preflight activities (saves Hobbs
Commercial pilots to monitor
ATIS and other field traffic as needed at their convenience
General aircraft monitoring
Wait, you can't use a radio
receiver onboard aircraft because they contain a local oscillator that could
generate interfering signals. We have you covered on that one.
The ABM1 has no local oscillator, it doesn't, can't, and won't generate any
RF whatsoever! That's why our patent abstract is titled "Aircraft band
radio receiver which does not radiate interfering signals". It doesn't
get any plainer than that!
What about an air show? The ABM1 is the perfect solution to
communications monitoring! A lot of unknown frequencies are used
between the ground and each plane flying. Listen to air-to-air, the
air boss, PA talkthrough and the stunt planes with ease! With a normal
receiver you need to know the frequency and tune into it. The ABM1
simply hears the activity as it occurs, perfect for an air show... should be
standard equipment for all the spectators!
Then there are the private and commercial pilots! A lot of private
pilots rent aircraft. With an ABM1 they can listen to field traffic
and ATIS broadcasts before firing up the aircraft avionics; this saves on
Hobbs time (inactive rental time!) and is convenient! Same with
commercial pilots. Your access to ATIS and other broadcasts can be as
close as your flight bag, briefcase, or pocket!
The receiver is in a compact case complete with a belt clip. Just plug
your favorite pair of headphones or the provided set of ear buds into the
receiver, turn it on, and you are now monitoring all local aircraft! A
squelch control is even provided to mute background noise and interference!
The receiver runs on a standard 9VDC battery (not included). You will
hear all nearby aircraft, ground transmissions, local control towers, and
any other traffic within the frequency range! Here in Rochester while
I'm writing this web page I'm hearing local aircraft overhead calling
Rochester Approach and Cleveland Center, and just heard the local News
Even with its compact design, we designed the ABM1 for easy construction by
the electronic hobbyist. Thru-hole parts are used for all customer
assembly. Several SMT components are part of the circuit, and they are
pre-installed at the factory! Where's the antenna you ask? The
headphone wire is your antenna! We even discuss a couple of component
changes you can make to optimize performance with other than normal lengths
of headphone wires. A professional set of stereo ear buds is included
with the ABM1 to get you listening quick! You can also use your
favorite set of Walkman type headphones with the ABM1. A factory
assembled and tested SMT version with additional shielding for adjacent
channel overloading is also available for the aircraft professional that
just wants to get listening quickly.
If you're a private pilot, commercial pilot, airport worker, aircraft
enthusiast, attend air shows, or spend a lot of time in airports or onboard
aircraft, the ABM1 is for you.
118 MHz to 136 MHz
Patented Passive Detector
Less than 2 uV for
700 mW, 8-24 ohms
3.5mm stereo phone
2.25" x 2.8" (PC Board)
2.5" x 4.6" x 9" (Case)
4 oz. with battery
User and Assembly Manual in PDF (ABM1.pdf)