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GLOSSARY
Lug pitch: The pitch obtained by striking the drum
head near one of the lugs. Lug pitch differs from lug to
lug. Also, lug pitches of batter lugs are unrelated to lug
pitches of resonant lugs.
Fundamental pitch: The overall pitch of the drum. The
dominant and lowest pitch when you hit the center of
the drum head. The fundamental pitch is the same for
both the batter and resonant head.
Matching lugs: Trying to get the same or similar lug
pitch at each lug.
MODES
Absolute Mode: Shows the pitch in Hz (8) as well as
the nearest note and octave (10). The dial shows the
pitch error (9) from the nearest note.
Difference mode: Useful for matching lugs, it lets you
choose one lug pitch as a reference and compares
other readings to that lug pitch. The difference
between the new reading and the reference is
displayed as +/- Hz, it also displays the reference pitch
at the bottom of the display (14) and the frequency
error on the dial (13,16). Note: Difference mode also
filters around the reference pitch and rejects sounds
more than 20% higher or lower in pitch.
Filter Mode: Lets you save the latest frequency
measurement as a reference and rejects sounds more
than 20% higher or lower than that reference. The
Filter Reference Value is displayed in the bottom of the
display (14). Filter mode helps to avoid picking up
fluctuating high or low readings.
HOW TO USE
Open the battery cover by pushing down and sliding
out. Pull off the paper tab from the batteries and make
sure to match the positive and negative ends of the
batteries to the correct contacts. Replace the cover.
Place your drum on a stool or carpet to mute the
opposite head. Then, clip the tune-bot studio to the
drum hoop between any two lugs. Push the red Power
button (5) to turn the unit on.
Strike the head of your drum lightly about 1” inward of
any lug and wait for a reading on the display (8), this
reading is your lug pitch. Tightening a lug will raise the
pitch while loosening the lug will lower the pitch. Try
to get nearly the same pitch at each lug. Measure each
of the lugs and make adjustments until all lugs are
within 2Hz of each other. We have lug pitch
suggestions, including Artist tunings, listed on our
website, www.tune-bot.com, and on our free tuning
calculator app which you can download at the Apple
app store or Google Play store.
You can also tune your drums using the difference
mode. First, get a lug pitch reading as described earlier.
Next, press the triangle button (7). Now strike 1”
inward of the remaining lugs. You are aiming for a
reading (12) close to 0. If your reading is positive,
loosen the lug, if it is negative, tighten the lug. Repeat
for all lugs until all readings are within +/- 2 Hz. Note
that if TOP, BOT or FUND is displayed under HEAD (18)
then a saved frequency will be used instead of the
latest measurement.
In order to read the fundamental pitch of the drum,
you must allow both heads to resonate. With both
heads unmuted (on a stand), strike the center of the
drum head, the fundamental pitch in Hz and nearest
note will be displayed. Make sure not to use
difference mode when reading the fundamental pitch.
SAVING AND RECALLING
You can save your tunings so that you can easily retune to the same sound. The tuner has save slots for 5
different drum kits with up to 10 drums in each kit.
Additionally, there are separate slots for top head,
bottom head, or fundamental pitch for each drum. To
save a pitch, first you will need to choose a save slot.
Pressing the KIT button (2) will cycle through kit
numbers 1-5 (20, 22), pressing DRUM (3) will cycle
through drum numbers 1-10 (0 representing 10) (19,
23), and pressing HEAD (4) will cycle through TOP, BOT,
and FUND (18, 24). Note that you must choose a head
in order to save. Once you have a pitch reading and
are in the save slot you want, hold the DRUM button
for a few seconds until the LED flashes (1), now the
pitch is saved and displayed in the bottom left corner
of the display (25). To recall a saved tuning, select the
corresponding save slot.
You can also use saved tunings in conjunction with
difference mode. If you recall a saved pitch and then
press the triangle button, all readings will show how
many +/- Hz you are from the saved pitch (15).
ADVANCED FEATURES
If you are having issues with variable readings, try
using the Filter mode. The Filter mode will limit the
range of your readings, keeping you from getting
inconsistent numbers. To use Filter, you must first get
a correct lug pitch reading. Next, press the FILT button
(6), notice that the filter reference pitch is displayed in
the bottom right corner of the display (14). Now, all
readings will be in a close range to the reference pitch.
Note you must re-set the filter when you switch drums
or heads or if you are making large tuning changes to
the drum (more than +/- 20% in Hz).
To tune a drum above 400Hz (most likely a snare
resonant head), you will need to use the hi-range
mode. This mode extends the tuner’s range to 450 Hz.
To enter hi-range mode, hold FILT for a few seconds
until HI-RANGE is displayed in bottom center of the
display. It is best not to use hi-range mode for typical
tuning (below 400 Hz).
SPECIFICATIONS
Tuning Range: 30 - 400 Hz, 1C - 4G#
Hi-Range 30 - 450 Hz, 1C – 4A
Sine-Wave Resolution: +/- 0.5 Hz.
Response Time: 750 mSec.
Power: 2 AAA Batteries
Weight: 72 g. (without batteries)
PRECAUTIONS
1. Avoid the following situations to prevent a potential
malfunction of the tuner: Exposure to liquids, Direct
sunlight, Extreme temperature or humidity, Excessive
dust or dirt.
2. Remove the batteries to prevent leakage when the
unit is not in use for long periods.
3. To avoid breakage, do not apply excessive force to
the push-buttons, battery cover, clamp or display. Do
not take apart the tuner, it is not user serviceable.
Dismantling the tuner voids the manufacturer's
warranty.
4. Do not use liquid cleaners on the product.
REGULATIONS: FCC (USA)
This Class B digital device has been tested and found to
comply with Part 15 of the FCC Rules. These FCC limits
provide reasonable protection against radiated
interference in a residential installation.
REGULATIONS: CE Mark (European Harmonized
Standards)
This battery operated apparatus has been tested and
found to comply with EMC Directive (89/336/EEC) and
CE mark Directive (93/68/EEC).
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