RECEIVER OPERATION MANUAL
THE NOVAK XXL RECEIVER
The Novak XXL is an extra-small, extra-light two
channel receiver with ultra-narrow band 10 kHz
channel spacing. The XXL is extra-big on performance
with outstanding range, superior noise rejection,
low voltage operation down to 3.0 volts DC, and
solid state reverse voltage protection. When inserted,
the crystal is fully enclosed within the receiver’s case
and extra plastic crystal holders are included. The
XXL receiver works with all popular radio systems
and accepts Futaba, JR, Sanwa, Hitec, new KO, and
AirZ connectors, and accepts all DSC connections.
SPECIFICATIONS
Case Size ............. 1.29”x1.11”x0.53”
(3.28x2.82x1.35cm)
Weight .................................. 0.48 ounce
(13.61 grams)
Number of Channels ................................................. Two
Usable Sensitivity .................................. 3.0 microvolts
Selectivity ................................. 6 dB down @
±
3.0 kHz
Bandwidth .............................. 50dB down @
±
7.5 kHz
Adjacent Channel Rejection .......... >60 dB @
±
10.0 kHz
3OIP
(Third Order Intercept Point) ..............................
+4 dBm
Voltage Range .............................. 3.0 to 10.0 volts DC
Antenna Length ........................... 18 inches
(45.72 cm)
Current Consumption ......... 8.0 mA
(over full voltage range)
The XXL receiver has been factory tuned and requires
no further tuning.
Crystals are not included with the receiver.
1.
Only use
single conversion crystals
.
2.
The receiver’s
frequency is indicated by the color of the
antenna wire.
The different frequencies are marked
on the receiver’s case label.
3.
On 75 MHz it is
VERY IMPORTANT
that you use the
XXL receiver made for your brand of transmitter
. The
XXL uses an ultra-narrow band
(
±
7.5kHz)
ceramic filter
for 10 kHz channel spacing. Using it with a different
radio brand will result in less than optimum performance.
The frequency tolerance of all crystals other than 75
MHz are close enough that
27, 29, and 40 MHz XXL
receivers are not brand specific
.
4.
Transmitter and receiver
crystals MUST be made by
the transmitter maker and be on the same modulation,
band, and frequency
(Example: Futaba FM/75 MHz/Ch.90
transmitter crystal must be used with Futaba FM/75 MHz/Ch.90
receiver crystal)
. Receiver crystals are usually marked “RX”.
5.
Crystals are sensitive to vibration and should not be
dropped.
A hard crash can damage receiver crystals.
6. Carefully insert the receiver crystal into the receiver
by guiding the two prongs into the receiver’s crystal
socket holes. Most crystal plastics will fit into the XXL
receiver, so it is not necessary to remove the crystal’s
plastic housing if it was supplied with one. Spare plastic
crystal holders are also included in case your crystal
does not have one.
Crystals are non-polarized and can
be inserted in either direction.
Always use FM crystals in FM receivers & AM crystals in AM receivers
STEP 1
RADIO CYRSTAL SELECTION, CARE, & INSTALLATION
The XXL receiver will accept Futaba, JR, Hitec, and new-
style Sanwa & KO input plugs. JR style plug plastics are
included to change over other styles. The next two
sections describe how to change the plug plastics and
wiring for the type of radio system you have.
Futaba
style connectors will fit into the XXL without
modification or wiring sequence change.
JR, Hitec, new-style KO, and Airtronics Z
connectors
will fit into the XXL without modification or wiring
sequence change. However, you MUST be sure that the
brown wire on the JR, and the black wire on the
Hitec, new KO, and AirZ harnesses are closest to the
outside/left edge of the case.
STEP 2
INPUT PLUGS
(Futaba, JR, Hitec, new KO, & AirZ)
This section describes how to change
old-style KO
and Sanwa/Airtronics
connectors to the JR style.
1.
With a small standard screwdriver, press on each of the
three metal locking tabs on the sockets until the wires
are easy to remove. Remove wires.
2.
With the screwdriver, carefully lift each of the metal
locking tabs to the angle shown.
3.
Sockets should “click” into place. The locking tab must
not extend outside plug housing.
4. Old-style KO harness
––Insert
black wire
into
BLK
plug
slot. Insert
red wire
into the
center
plug slot. Insert
blue wire
into the
WHT
plug slot.
blue wire
red wire
5. Old-style Sanwa/Airtronics harness
––Insert
middle
black wire
into the
BLK
plug slot. Insert
outside black
wire
into the
WHT
plug slot. Insert
red wire
into the
center
plug slot.
outside black wire
red wire
Improper wiring sequence may damage receiver, servo, and ESC.
STEP 2
INPUT PLUGS
(Sanwa/Airtronics & old KO)
This section describes how to properly mount the
receiver and avoid damage due to vibration or shock.
1. Electric Cars & Boats
––Mount the XXL with the
included double-sided tape as close to the antenna
as possible, where the receiver’s case will not contact
the chassis or other rigid surfaces.
2. Gas Cars & Boats
––The XXL should be mounted
in foam rubber and protected from fuel and water.
Do not use glue to mount the receiver!
3. Tubular Plastic Antennas
––Run the antenna wire
up through the plastic antenna tube and let the
excess wire trail out the top of the tube.
4. Rigid Antennas
––Wrap antenna wire around the
mast with 1/4” spacing. Shrink wrap or tape the top
to secure the wire and let the excess trail off the top.
Do not cut or coil excess wire––Range will be reduced!
STEP 3
MOUNTING INSTRUCTIONS
