Foxpro Hammerjack User manual

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Important Information
FOXPRO®’s goal is to provide our customers with the highest quality products in the
industry. We take great pride in manufacturing our products in the USA. Please do not
hesitate to contact us for assistance, comments or questions.
FOXPRO®Inc.
14 Fox Hollow Drive
Lewistown, PA 17044
Hours of Operation
Monday –Friday
8AM –5PM EST
Contact Us
Service & Support: 717-248-2507
Toll Free Orders Only: 866-463-6977
General Inquiry E-mail: [e-mail]
Technical Support: [e-mail]
Stay up to date with the latest sounds by visiting our online sound library. Watch for
new products and upgrades from FOXPRO®. Visit us online:
www.gofoxpro.com
This manual, the animal sounds stored in your caller, and animal sounds purchased from FOXPRO®Inc. for
installation in your caller are protected by copyright.
Copyright ©℗ 2017 by FOXPRO®Inc.
Publication Date: July 6, 2017 –REV2

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Contents
1. Getting Started ..................................................................................................................................... 4
1-2 HammerJack: First Glance .................................................................................................................... 4
1-3 HammerJack: Power Requirements...................................................................................................... 4
1-4 TX915 Transmitter: First Glance ........................................................................................................... 5
1-5 TX915 Transmitter: Power Requirements ............................................................................................ 5
2. Quick Start Guide.................................................................................................................................. 5
2-1 Playing Sounds...................................................................................................................................... 6
2-2 Using Favorites/Presets (P1 and P2)..................................................................................................... 6
3. About the HammerJack Speakers ......................................................................................................... 7
4. Using External Speakers........................................................................................................................ 7
5. Batteries and Charging.......................................................................................................................... 8
6. Using External Power Sources............................................................................................................... 9
7. Auxiliary Devices ................................................................................................................................... 9
7-1 Integrated Decoy Wiring Harness......................................................................................................... 9
7-2 Using the Fox Jack 4 Decoy................................................................................................................. 10
8. TX915 Detailed Overview.................................................................................................................... 10
8-1 Primary Display Area .......................................................................................................................... 11
8-2 Main Menu......................................................................................................................................... 11
8-3 FOXFEATURES: FOXBANG................................................................................................................... 11
8-3 FOXFEATURES: User Button................................................................................................................ 12
8-4 Sound Settings: Volume Steps............................................................................................................ 12
8-5 Sound Settings: Play Mode................................................................................................................. 12
8-6 Sound Settings: Preset Mute Override ............................................................................................... 12
8-7 Display/Power: Backlight.................................................................................................................... 12
8-8 Display/Power: Backlight T.O. ............................................................................................................ 12
8-9 Display/Power: Contrast..................................................................................................................... 13
8-10 Display/Power: Display Mode........................................................................................................... 13
8-11 Display/Power: Auto Off................................................................................................................... 13
8-12 Timer: Stand Timer........................................................................................................................... 13
8-13 Timer: Alarm..................................................................................................................................... 13
8-14 Transmitter Settings: Download List................................................................................................. 13
8-15 Transmitter Settings: AUX ................................................................................................................ 14
8-16 Transmitter Settings: View ............................................................................................................... 14
8-17 Transmitter Settings: About Info ...................................................................................................... 14
8-18 Transmitter Settings: Cable Detect................................................................................................... 14
9. FOXCAST ............................................................................................................................................. 14
10. Programming the HammerJack........................................................................................................... 16
11. Maximizing Remote Range ................................................................................................................. 19
12. Product Care & Maintenance.............................................................................................................. 19
13. Troubleshooting.................................................................................................................................. 20
14. FCC & IC Information .......................................................................................................................... 21
15. Warranty Statement ........................................................................................................................... 22

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1. Getting Started
Congratulations on your purchase of the FOXPRO HammerJack digital game call! To avoid personal injury
and product damage, be sure to read all operating instructions before using the FOXPRO HammerJack.
1-2 HammerJack: First Glance
The following chart corresponds to a graphic of the HammerJack game call bellow. Certain aspects of the
HammerJack are marked with a number that corresponds to the chart defining that particular element.
1
Carry handle
2
Rear cone speaker
3
Fox Jack 4 decoy
4
Power on/off switch
5
Internal speaker on/off switches
6
Charge jack
7
Rear external speaker jack
8
Auxiliary jack
9
Front external speaker jack
10
Low battery indicator
11
Front horn speaker
1-3 HammerJack: Power
Requirements
The HammerJack is shipped without batteries. It requires 8 ‘AA’ batteries. You may use alkaline batteries to
get started, but it is recommended that you use high capacity rechargeable NiMH (nickel metal hydride)
batteries or one of FOXPRO’s optional rechargeable battery packs.
Installing Batteries in the HammerJack
1. Access the battery compartment by removing the Fox Jack 4 from the back of the HammerJack.
The Fox Jack 4 is secured with a knurled thumbscrew. Notice that the Fox Jack 4 has an interface
wire attaching to a wiring harness inside the back of the HammerJack. You can disconnect this

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wire if needed. After the Fox Jack 4 is removed, locate the black plastic battery tray. This tray is
double-sided, providing spaces for 8 ‘AA’ batteries. The tray is connected to a power cable—you
may unplug this cable during battery installation.
2. Place the batteries into each battery cavity. Be sure to observe polarity as indicated.
3. Reconnect the power cable (if you unplugged it) and the Fox Jack 4 interface wire (if you
disconnected it). Place the battery tray back inside of the HammerJack.
4. Secure the Fox Jack 4 back on the HammerJack.
1-4 TX915 Transmitter: First Glance
The following chart corresponds to a graphic depicting the
HammerJack remote. Certain aspects of the HammerJack
remote are marked with a number that corresponds to the
chart defining that particular element.
1-5 TX915 Transmitter: Power Requirements
The HammerJack remote operates on 3 ‘AA’ batteries. It is recommended that you use high-quality lithium
or alkaline batteries for the best performance.
Installing Batteries in the HammerJack Remote
1. Access the battery compartment by removing the door from the back of the remote. The door
slides down and off of the remote.
2. Place the batteries into each battery cavity while observing polarity as indicated.
3. Slide the battery compartment door back on the remote.
2. Quick Start Guide
The Quick Start Guide gives you a quick rundown on how to get your HammerJack up and running right
away. While this section provides you with the basics to get started, we strongly suggest reading the manual
in its entirety to fully understand all of the features and get the most out of your new product.
1
Power on/off
2
Select
3
Volume up/down
4
Mute
5
Quick access buttons for preset 1 and preset 2
6
Lanyard loop
7
Auxiliary button
8
User button
9
Sound up/down
10
Back/Menu
11
Timer
12
Battery indicator
13
Sound list upload jack
14
Mute status indicator
15
Volume level indicator
16
FOXBANG indicator

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2-1 Playing Sounds
The primary function of your HammerJack game call is to produce sounds to attract wildlife. This section
explains how to turn on the HammerJack and the TX915, and how to start playing sounds. Be aware that the
HammerJack can only play sounds by being commanded by the TX915 transmitter.
IMPORTANT NOTE
THE TX915 TRANSMITTER IS NOT INTENDED TO OPERATE THE CALLER AT DISTANCES SHORTER
THAN 1 METER (3 FEET). IF THE TRANSMITTER IS LOCATED TOO CLOSE TO THE CALLER,
PROPER OPERATION CANNOT BE ENSURED.
1. Turn on the HammerJack by turning the power on/off switch clockwise until it clicks.
2. Make sure that at least one of your internal speakers is turned on by sliding the respective
speaker on/off switch to the right or “on” position.
3. Turn on the TX915 transmitter by pushing and holding the power button for approximately 1-2
seconds.
4. Notice the black horizontal highlight bar on the TX915 display. The bar moves up and down the
screen as you use the “Scroll Up” or “Scroll Down” arrow buttons.
5. Move the highlight bar to one of the sound categories and push the “Select” button. Doing this
results in displaying all of the sounds in that particular category. To exit the current category,
push the “Back/Menu” button.
6. After moving the highlight bar to the sound you wish to play, push the “Select” button a single
time to begin playback. You won’t hear anything at first as the volume level hasn’t been set.
7. To adjust the volume: Use the “Volume Up” button to raise the volume level to your desired
setting. Use the “Volume Down” button to decrease the volume level. The transmitter has 20
volume steps.
8. To silence the sound: Push the “Mute” button a single time. When muted, the mute status
indicator on the TX915 display shows an “M” and the current sound is silenced. Un-muting is
accomplished by pushing the “Mute” button a second time (the “M” will no longer be displayed
and the sound will resume playing).
9. To switch sounds: Use the scroll buttons to navigate to a different sound and push the “Select”
button. You can switch sounds while the HammerJack is actively playing a sound or while muted.
10. To turn off the TX915: Push and hold the power button for approximately 1-2 seconds. Be aware
that turning off the remote control does not end sound playback on the HammerJack. If you are
finished calling, use the “Mute” button to silence the HammerJack prior to turning off the TX915.
11. To turn off the HammerJack: Rotate the power switch to the off position (counter-clockwise).
2-2 Using Favorites/Presets (P1 and P2)
The TX915 transmitter is capable of storing up to 10 unique presets/favorites. A preset, or favorite, is a
shortcut to a specific sound and volume level. The TX915 has 2 quick-access preset buttons located on the
keypad labeled “P1” and “P2.” By default, the transmitter has one preset established which is sound 000
(Coyote Pup Distress 3) at volume 10 (50% max).
Creating a New Favorite/Preset
1. From the main screen on the transmitter, select the “Favorites/Presets” menu item.
2. Select one of the 10 preset slots. Notice that the screen indicates “Preset Recording” on the top
line of the display. The second line down displays “P1 – Select Sound.”
3. Use the scroll buttons to highlight the sound you want to select for this preset and then push the
“Select” button.
4. Use the volume buttons to set the desired volume level for this preset and then push “Select.”
5. Your preset is now setup.

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Changing/Overwriting Existing Favorite
1. Select the “Favorites/Presets” menu item on the TX915.
2. Position the highlight bar on the favorite that you wish to change.
3. Push and hold the “Select” button for about 3-4 seconds. The remainder of the process is exactly
the same as setting up a new favorite where you select the desired sound and volume level.
Using a Favorite
Make sure that both the HammerJack and TX915 transmitter are powered on, and push the corresponding
preset button (P1 or P2) on the transmitter keypad. The HammerJack will then instantly switch to that
sound and volume level. To initiate playback of any other preset: Select the “Favorites/Presets” menu on
the main screen, browse through the available presets, and then use the “Select” button, just as if you were
picking a sound for normal playback. The “User”button can be configured to initiate playback of presets 3,
4, and 5; see section 8-3 for more information about the “User” button.
3. About the HammerJack Speakers
The HammerJack incorporates two different types of loudspeakers. The front speaker is a high efficiency
horn with maximum sensitivity in the frequency range necessary to reproduce small animal distress
sounds. Distress sounds of rabbits, small rodents, birds, canines, and many others are best reproduced by
using the front horn only with the rear cone speaker turned off. This will also ensure maximum battery life
as playing both speakers requires almost twice as much battery power. The rear cone speaker is best
suited for sounds that have significantly lower frequency content.These sounds would include bear
growls, mountain lion roars, certain owl hoots, and some other large mammal sounds. The rear speaker,
however, is not as efficient as the front horn. Because of this, it will not play as loud as the horn.
Understand that not all calling sounds will benefit greatly from playing both speakers at once. If you elect
to do this, remember that battery life will be reduced.
4. Using External Speakers
The HammerJack is equipped with two External Speaker Jacks which allows you to connect up to two
additional speakers. The internal speakers perform admirably; however, you may encounter situations that
require higher volume levels. By connecting a larger and more efficient external speaker(s) to the
HammerJack, the volume level can be increased significantly.
Connecting an External Speaker
The external speaker jacks on your HammerJack accept standard 3.5mm plugs. When choosing an external
speaker, it is recommended to use one with an impedance rating of 8-ohms. To connect an external
speaker, plug the connector of the external speaker into one of the external speaker jacks. You will notice
that each external speaker jack corresponds to one of the internal speakers. For example, the internal front
speaker and front external speaker are linked together. If you wish to have ONLY the external speaker(s)
produce sound, you must disable the internal speakers as the internal speakers are not disabled
automatically.
Disabling/Enabling the Internal Speaker
Move the speaker slide switch to the “OFF” position for the desired speaker you wish to disable (front or
back). To re-enable the speaker later, simply place the slide switch back to the “ON” position. By disabling
the internal speaker(s) when using an external speaker(s), battery life will be extended longer than having
all of the speakers operating at once.

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5. Batteries and Charging
The HammerJack operates on 8 ‘AA’ batteries. For optimal performance and run times, we recommend
using high capacity (2300 mAh or higher) NiMH (nickel metal hydride) rechargeable batteries rather than
alkaline types. When you operate the HammerJack at extremely loud volume levels, the current demand on
the batteries is much more than alkaline cells can deliver. Consequently, the run time of these batteries can
be very short.
Battery run time is directly related to how loud you operate the HammerJack. Using both speakers at the
same time, rather than only the most appropriate one, will have a negative impact on run time. With one
speaker playing, expect 6 to 15 hours of run time, depending on the volume level. With both speakers
playing, expect 3 to 10 hours. Remember that very loud volumes are rarely needed as animals hear much
better than we do. All FOXPRO rechargeable battery kits are shipped with individual instruction sets that
pertain to their unique operations.
Your FOXPRO unit incorporates circuitry to terminate the charge current if high battery temperatures are
detected. Battery temperatures increase at the end of the charge cycle. If the temperature edges towards a
dangerous level (50°C/122°F) while charging, the charge current will be interrupted. The charge will not
resume until the battery temperature has gone down. Be aware that the HammerJack unit does not provide
any visual feedback indicating the charge status. You should not permit the charge to continue for more
than 10 hours under any circumstances! The batteries need to be recharged when the “Low Battery” LED is
blinking. The following list of cautions and warnings should be observed with any rechargeable system you
decide to use.
WARNING
Do not mix battery types! For example: never use NiMH rechargeable batteries in
conjunction with non-rechargeable alkaline batteries.
Never connect your HammerJack to an unregulated 12V system (i.e. automotive
systems, high current power supplies, etc.) Serious damage will occur which is not
covered by the warranty. The charge jack is intended only for FOXPRO®chargers.
Never attach an unapproved or a non-FOXPRO®charger to your HammerJack!
Damages caused by plugging unapproved charging devices into your HammerJack will
not be covered by the warranty.
GENERAL PRECAUTIONS FOR CHARGING
Never attempt to charge batteries that are not intended to be recharged! This
includes both Zinc Carbon and alkaline cells. The resulting damage can be serious and
will not be covered by the warranty. For maximum charge efficiency, we recommend
charging your HammerJack in temperatures ranging from 40°F to 85°F (5°C to 30°C).
Disconnect any/all accessory devices that may be attached to the HammerJack prior
to charging. This includes external speakers, auxiliary devices, and USB cables.
Make sure that the power switch is in the “off” position while charging.
Make sure that the rechargeable battery pack is installed in the HammerJack properly.
Connect the approved FOXPRO charger to the charger jack on the HammerJack and
attach the transformer to the appropriate outlet.
Remember that NiMH batteries self-discharge about 1% per day.
Do not leave charging batteries unattended.
Remove batteries from battery holder when caller will not be used for prolonged
periods to help prevent deep discharge.

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Recharge your batteries periodically—even when not in use—to prevent deep
discharge.
6. Using External Power Sources
The design of the HammerJack permits the use of certain external power sources, so long as some
precautions are observed. The 8-cell internal battery pack will serve about 98 percent of the users about 98
percent of the time. This makes for a caller that is compact and lightweight, highly portable, and has very
good battery life. However, we recognized that there may be times when extended run-times and
additional volume are more important than lightweight and absolute portability. You can have the best of
both worlds with the HammerJack!
By connecting a large external 12-volt battery to the external power adapter replacement door (sold
separately at FOXPRO), you can operate the HammerJack and obtain run-times measured in days rather
than hours. A NiMH battery pack supplies 9.6 volts to the power amplifier, while an external battery can
supply up to 14 volts. This additional voltage will offer an increase in power output to the speakers,
equating to additional volume. But there is a double-edged sword involved here. By giving the user the
ability to get more power from the amplifier, there is also a much greater chance of causing damage to the
built-in speakers. For this reason, we recommend using one of our large external speakers, such as the SP-
60, if you really need to, say, call crows from the next county. Not only are these speakers more efficient,
they will have no problem dealing with the extra power.
NOTE: If you must use extreme volume without the external speaker, use only the front horn. The rear cone
speaker is somewhat more delicate than the front horn. Please be careful with the volume control, and
remember these cautions when using an external battery:
NEVER connect an external battery to the charge jack.
NEVER connect a battery or power supply capable of delivering more than 15 volts to the charge
jack.
NEVER charge the external battery while it is connected to the HammerJack.
ALWAYS use a 5 amp (max) fuse in the positive battery lead.
ALWAYS act responsibly with the volume control to prevent speaker damage.
For maximum possible volume, use one of our optional external speakers, such as the SP-60.
7. Auxiliary Devices
The AUX jack is provided primarily for the control of FOXPRO decoys, and may be suitable for controlling
other similar devices. It is NOT intended for the direct control of motors, flashlights, or other devices
requiring the internal AUX jack circuitry to switch more than 50 milliamps. The jack tip polarity is positive.
Do not exceed 15 volts. You are urged to seek help from a knowledgeable professional before connecting
any unapproved device to the jack. Keep in mind that any damage to the FOXPRO caller as a result of
improper use of the AUX jack is not covered by the warranty, nor will FOXPRO be liable for damage to any
connected devices.
7-1 Integrated Decoy Wiring Harness
The HammerJack features an integrated decoy wiring harness (see image below) for connecting the Fox Jack
4 decoy (included with the HammerJack). Unlike other decoys offered by FOXPRO that require their own
power supply and wired connection to the AUX jack, the Fox Jack 4 Decoy mounts directly to the back of the
HammerJack and interfaces to the wiring harness for power and triggering of the decoy motion. Please note
that this wiring harness is designed to be used only with the Fox Jack 4 decoy! When you first remove the

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battery compartment door from the HammerJack, you can find the wiring harness taped to the upper right
side of the battery compartment.
7-2 Using the Fox Jack 4 Decoy
The included Fox Jack 4 decoy mounts directly to the back of the HammerJack game call. You can then
control the action of the Fox Jack 4 with the TX915 remote control and through FOXCAST sequences.
Combining the use of a decoy with the effective sounds on the HammerJack provides you with a well-
rounded predator calling combination. After fooling their ears, the decoy will fool their eyes.
Connecting the Fox Jack 4 Decoy to the HammerJack
1. Connect the Fox Jack 4 to the back of the HammerJack by joining the 3-pin connector on the Fox
Jack 4 to the decoy wiring harness.
2. Secure the Fox Jack 4 to the HammerJack housing by inserting the tabs into the slots and then
tightening the knurled thumbscrew.
Turning on and Activating the Fox Jack 4 Decoy
1. Ensure the Fox Jack 4 is properly connected to the HammerJack.
2. Turn on the HammerJack game call and the TX915 remote control. Be aware that the
HammerJack must be turned on in order to power the Fox Jack 4 decoy.
3. Locate the three-position slide switch on the side of the Fox Jack 4.
4. Move the switch from the off position to the first on position. The second on position turns on
the integrated LED, which can be useful in nighttime operation to provide subtle illumination to
the decoy.
5. Using the TX915, push the auxiliary button a single time. The Fox Jack 4 should begin moving. To
stop the motion, push the auxiliary button again.
8. TX915 Detailed Overview
This section covers the TX915 in detail, including breakdowns and explanations of each menu item.