Providing The Neatest Electronic
FOR OVER 3 DECADES!
The Building Blocks!
✔ Monitors the entire aircraft band without tuning!
✔ Passive design, can be used on aircraft, no local
oscillator, generates and creates no interference!
✔ Great for air shows
✔ Patented circuit and design!
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
1. At an air show! Just imagine listening to all the traffic as it happens
2. Onboard aircraft to listen to that aircraft and associated control towers
3. Private pilots to monitor ATIS and other field traffic during preflight
activities (saves Hobbs time!)
4. Commercial pilots to monitor ATIS and other field traffic as needed at
5. General aircraft monitoring enthusiasts
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! Available as a through-hole hobby kit or a factory
assembled & tested SMT version.
Passive Air Band
118 MHz to 136 MHz
Patented Passive Detector
Less than 2 uV for detectable
700m W, 8-24 ohms
3.5mm stereo phone
Headphone cord coupled
2.25” x 2.8” PC Board
2.5” x 4. 6” x . 9” Case
4 oz. with battery
ABM1 Passive Air Band Monitor Kit
ABM1WT Passive Air Band Monitor, Factory Assembled & Tested
The kit has a pulsing 80 volt
tickle output and a mischie-
vous blinking LED. And who
can resist a blinking light! Great
fun for your desk, “Hey, I told you not to touch!”
Runs on 3-6 VDC
TS4 Tickle Stick Kit
Super Snoop Amplifier
Super sensitive amplifier that will
pick up a pin drop at 15 feet! Full
2 watts output. Makes a great “big
ear” microphone. Runs on 6-15 VDC
BN9 Super Snoop Amp Kit
Produces a very pleasant, but
obnoxious, repetitive “plink, plink”
sound! Learn how a simple transistor
oscillator and a 555 timer can make such
a sound! Runs on 4-9 VDC.
EDF1 Dripping Faucet Kit
Our #1 Mini-Kit for 31 years!
Alternately flashes two jumbo red
LED’s. Great for signs, name badges,
model railroading, and more. Runs on 3-15 VDC.
BL1 LED Blinky Kit $7.95
Senses temperature and
changes the chirp accordingly. Can actually determine
temp by chirps! Runs on
9VDC battery. Speaker included.
ECS1 Cricket Sensor Kit
Digital Tuned High Performance
Aircraft Band Receiver
N e2 w0 0F6o
✔ Rock solid dual conversion PLL receiver!
✔ Airport runway lighting controller output!
✔ 4 user memory scanner banks, 20 freq’s each
✔ Full band scanner with skip and skip/timer modes
✔ Internal front panel speaker
✔ External antenna input, speaker out, headphone out
✔ Stylish and shielded black metal enclosure
✔ Available as a hobby kit or factory assembled & tested
Professional features at a hobbyist price! To begin with, we designed it with the
latest technology, utilizing a rock stable synthesized PLL dual conversion receiver. We gave it
superb image and adjacent channel rejection to allow you to lock onto the signals you want and not to be
bothered by those you don’t!
Once we got the RF portion designed we took a close
look at the features desired in such a receiver. We
gave it a neat 2x8 line LCD display to show you all the
functions. Control of modes and setups is obtained
through the front panel controls and confirmed on the
LCD display. On/Off/Volume and Squelch controls are
also provided on the front panel. We even gave it a
front panel speaker in case you stack the lighting controller or something else on top of it! So far we’ve
described the ultimate aircraft receiver that’s not only
the perfect field monitor for a hangar or airport manager’s office, but for the serious enthusiast. Can it get
any better than that? It sure can!
The top request we’ve had for a professional aircraft
receiver was to embed automatic runway lighting control. Consider it done! The lighting controller follows the standard protocol for remote runway lighting. The
pilot “keys” his microphone on the local CTAF channel for the specified number of times. All you need to do is
set the receiver for the lighting control mode, then make sure the squelch is closed and will open on a suitably
strong signal. Typically the number of “keys” or “events” according to the receiver control the lighting as follows: 3 events, 25% brightness; 5 events, 50% brightness; and 7 events, 100% brightness. The AR2’s
adjustable lighting timer sets turn-on duration to your needs. Includes the matching case and knob set and
power supply. For the aviation professional that is not interested in building the receiver, the AR2 and the lighting controller are also available factory assembled and tested, ready to go. Just plug it in and you’re all set.
AR2 Synthesized Aircraft Receiver Kit With Case & AC Power Supply $199.95
AR2WT Factory Assembled & Tested AR2 Synthesized Aircraft Receiver $269.95
AR2L Plug-In Runway Lighting Controller Interface Kit With Case & AC Power Supply $59.95
AR2LWT Factory Assembled & Tested AR2L Runway Light Controller $99.95
Adjacent Ch. Rejection:
Light Controller Output:
117.975 MHz to 137.000 MHz
Dual Conversion PLL
10. 7 MHz & 450 kHz
Less than 1 uV across the band
Greater than - 80 dB
Greater than -40dB
4, 20 frequencies each
1 watt, 8 ohms
3 events, 5 events, 7 events
output to controller
BNC female, rear panel
5. 55” W x 6. 45”D x 1.5” H
Produces the upward and downward wail of a police siren.
Produces 5W output, and will drive
any speaker! Runs on 6-12 VDC.
SM3 Electronic Siren Kit
Build anything from a time delay
to an audio oscillator using the
versatile 555 timer chip! Comes
with lots of application ideas. Runs on
UT5 Universal Timer Kit
Voice activated (VOX) provides a
switched output when it hears a
sound. Great for a hands free PTT
switch, or to turn on a recorder or light! Runs on
6-12 VDC and drives a 100 mA load.
VS1 Voice Switch Kit
Encodes OR decodes any tone 40
Hz to 5KHz! Add a small cap and it
will go as low as 10 Hz! Tunable with
a precision 20 turn pot. Runs on 5-12 VDC and
will drive any load up to100 mA.
TD1 Encoder/Decoder Kit
Super broadband preamp from
100 KHz to 1000 MHz! Gain is
greater than 20dB while noise is less
than 4dB! 50-75 ohm input. Runs on 12-15 VDC.
SA7 RF Preamp Kit $19.95
Touch on, touch off, or momentary
touch hold, your choice! Uses CMOS
technology. Runs on 6-12 VDC and drives any
load up to 100 mA.
TS1 Touch Switch Kit