RadioMaster Zorro User manual

ZORRO
Instruction manual
Version：1.0
WWW.RADIOMASTERRC.COM

Content
1. Overview....................................................................................................................................... 4
1.1. Introduction............................................................................................................... 4
1.2. Safety information..................................................................................................... 4
1.3. Radio overview...........................................................................................................6
1.4. Battery and charging information..............................................................................7
1.5. Manual and firmware download............................................................................... 7
1.6. Specifications............................................................................................................. 8
1.7. Warranty and repair...................................................................................................8
1.8. Disclaimer...................................................................................................................8
1.9. Legal status and copyright......................................................................................... 9
2. First boot..................................................................................................................................... 10
2.1. Calibrating Gimbals.................................................................................................. 11
2.2. Set the default Gimbal mode and the default channel.......................................... 12
output order....................................................................................................................12
3.Radio menu.................................................................................................................................. 13
3.1. Main interface..........................................................................................................13
3.1.1. Reset, Statistics and About........................................................................... 14
3.2. System settings........................................................................................................ 14
3.2.1 TOOLS.............................................................................................................15
3.2.2 SD CARD......................................................................................................... 15
3.2.3 RADIO SETUP..................................................................................................16
3.2.4 GLOBA FUNCTIONS........................................................................................ 17
3.2.5 TRAINER......................................................................................................... 17
3.2.6 HARDWARE.................................................................................................... 17
3.2.7 VERSION......................................................................................................... 18
3.3. Model selection........................................................................................................18

3.3.1. Create model and model selection..............................................................18
3.4. Model settings (Model Setup）.............................................................................. 19
3.4.1 Model settings（Model setup）...................................................................19
3.4.2 Flight Mode（Flight Modes）.......................................................................22
3.4.3. Global variables（Global Variables）.......................................................... 22
3.4.4. . Input Source（Inputs）..............................................................................24
3.4.5. Mix control (Mixer)...................................................................................... 26
3.4.6. Output（Outputs）......................................................................................29
3.4.7. Curves............................................................................................................30
3.4.8. Logic switches（Logical Switches）............................................................. 31
3.4.9. Special Functions.......................................................................................... 34
3.4.10. Digital Transmission and Telemetry........................................................... 36
3.4.11. Display.........................................................................................................38

1. Overview
1.1. Introduction
Thank you for purchasing the RadioMaster ZORRO radio system. Advanced and highly-versatile,
ZORRO is adaptable for pilots of any skill level. To ensure safe and reliable operations, please
read this manual carefully prior to use.
As the software and hardware are constantly improved, the information contained in this
manual is subject to change without prior notice. Please visit our website for up-to-date
information and radio firmware.
ZORRO is an open-sourced, ergonomic radio with powerful multi-protocol capability. Able to
bind to most contemporary protocols on the market, this is one radio to rule them all! ZORRO
runs EdgeTX, an open-sourced operating system; for more information, please visit the EdgeTX
link below.
-The RadioMaster team
1.2. Safety information
Radio-controlled models commonly contain sharp components like propellers, rotating at high
RPMs; when operating or maintaining the model, always use common sense and proceed with
caution.
Always disconnect power to the model AND remove propellers (if applicable) during the
assembly or maintenance process.
Never operate the ZORRO radio system in the following conditions:
• In severe weather or strong windy conditions, such as rain, hail, snow, storms or
electromagnetic environments.
• In limited visability
• In the proximity of other people, property, high-voltage power lines, public roads, vehicles or
animals
• When feeling unwell, or under the influence of drugs or alcohol.
• If the ZORRO radio system/model is damaged or showing signs of interference.
• In areas with high 2.4GHz interference or where 2.4GHz radios are prohibited.

• When the TX/RX battery is low.
• In areas where local regulations prohibit the use of R/C aircraft.
WARNING!
Zorro is pre-installed with the most stable firmware at the factory at time of release. please only
attempt to update the firmware if you are confident in the process. Incorrect firmware updates
may cause the remote control to become inoperable. Damage as a result of improper firmware
update may not be covered under warranty.

1.3. Radio overview

1.4. Battery and charging information
ZORRO is powered by 2x 3.7V 18350 Lithium Ion cells and is charged using the built-in USB-C
port. The charging circuitry is designed for charging 2x 3.7V Lithium Ion/Poly or 1x 7.4V Lipo
battery pack only; the nominal voltage is 3.7V and the maximum charging voltage is 4.2V.
Never charge 3.6V LiFe and 3.6V 18350 Lithium Ion packs with the onboard charger. Charging or
using the wrong battery chemistry/polarity may cause permanent damage to the PCB and in
certain situations cause fires.
Check the voltage and condition of the battery regularly and never charge the device
unattended. Only charge in safe areas away from combustable materials. Refrain from charging
the radio unit if it was exposed to water or was damaged in any way. RadioMaster does not
assume any responsibility for any adverse consequences caused by the use or misuse of this
product.
1.5. Manual and firmware download
ZORRO is pre-installed with factory approved EdgeTX firmware and is also capable of operating
OpenTX. To download the latest manual or stock factory firmware, please visit the RadioMaster
website: https://www.radiomasterrc.com
When updating your radios firmware we would encourage you to use EdgeTX Buddy.
EdgeTX
http://edgetx.org/ (Information about EdgeTX)
https://buddy.edgetx.org/ (easy to use tool for FW updates)
OpenTX
https://www.open-tx.org/ (Information as OpenTX)

1.6. Specifications
Size：174*86*157.5mm
Weight：355g（No battery）
Frequency：2.400GHZ-2.480GHZ
Transmitting power：Module dependant󱡯󱖐
Antenna gain：2db
Battery：3.7V 18350 Lithium Ion
Charge port：USB-TypeC
Operation voltage：DC 6.6-8.4v
Range：> 2km @ 20dbm
Firmware：EdgeTX（Transmitter)
Channels：Up to 16 (Rx dependent)
Display：128*64 Monochrome LCD display
Gimbals：High precision potentiometer/ Hall-effect sensor (Package dependent)
External module：8Pin Nano Port
Upgrade method：USB/SD card & EdgeTX Companion PC software
1.7. Warranty and repair
Should any issues arise with your radio system's hardware, please keep the proof of purchase
and contact the retailer where you made the ZORRO purchase. . You may also visit our warranty
support page https://www.radiomasterrc.com/contact
The limited warranty covers defects in workmanship for one year from the date of purchase
1.8. Disclaimer
OpenTX/EdgeTX are open source firmware. No warranty or implied warranty is given for the
quality and reliability of this firmware. If not handled properly, the RC model can cause serious
injury or even death. If you decide to use OpenTX/EdgeTX firmware, you are solely responsible
for your model. Any injury or damage caused by using OpenTX/EdgeTX firmware The authors of
OpenTX/EdgeTX and RadioMaster assume no responsibility. Use with caution.

1.9. Legal status and copyright
This project is free software: you can redistribute and / or modify it in accordance
with the GNU General Public License Agreement, V3 version agreement, or (optionally)
an updated version agreement issued by the International Free Software Association. You
should receive a copy of the GNU General Public License Agreement for the
OpenTX/EdgeTX project. If not, see www.gnu.org/licenses. OpenTX/EdgeTX is open sourced
firmware for RC radio controllers. The firmware is highly
configurable and has more features than traditional radios. Daily feedback from
thousands of users ensures continuous firmware updates as well as stability and
quality. The release of OpenTX/EdgeTX firmware hopes that it will benefit the public, but it has
no
warranty; it does not include implied commercial licenses or applicability for a special
purpose. For more details, see the GNU General Public License Agreement. OpenTX/EdgeTX
source files and more can be found at https://github.com/opentx/opentx and
https://github.com/edgetx/edgetx.

2. First boot
Press and hold the power button to boot. Before entering the main interface, the system will
check the position of the throttle stick and switch and other startup conditions. If the startup
conditions are not met, there will be a corresponding error prompt. You need to clear it or press
any key to move forward Throttle warning: This is a warning that the throttle is not at the lowest
position when the radio is turned on. You can set the throttle stick to the lowest position or
press any key to skip. You can also turn off the throttle state option in the MODEL SETUP menu.
Throttle alarm.
Switch warning: This is a warning that a switch on the radio -control is not in the default position.
(The default setting is that all switch directions are up ↑)
Failsafe not set warning: This is a warning that the radio-control fail-safe protection is not set.
Alarm off warning: A similar warning will sound if the volume is set to mute.

Main page: Below is an example of the default main page of the system, you can customize the
display elements in the page as required.
2.1. Calibrating Gimbals
Each ZORRO radio unit is calibrated during the QC process, however due to varying shipping
conditions we suggest calibrating your radio prior to first use.
A. In the system settings, scroll to the HARDWARE page, select calibration, then press OK to
enter the settings.
B. Follow the text prompts at the top for calibration. The first step prompts, press the
confirmation key to start

C. In the second step, place all the gimbals, knobs, and side sliders in the middle position. The
system obtains the midpoint value, and then press the confirmation key to continue to the next
step.
D. For the third step, move all the gimbals, knobs, and side sliders of to their respective
maximum and minimum positions. The system will record the maximum and minimum values.
After all the above steps are completed, press Enter key to complete the calibration, and the
system automatically returns to the previous page.
2.2. Set the default Gimbal mode and the default channel
output order.
In the system settings, turn the page to the RADIO SETUP page, select the scroll wheel to the
bottom of the page, you can see:
Rx channel ord (Receiver channel order)
Mode（Gimbal mode）
Because the channel input order of the built-in multi-protocol transmitting module of the
RadioMaster ZORRO is AETR, in the Default channel order option, select AETR.

The Mode (gimbal mode) can be selected according to your personal preferences:
Mode 1 (right-hand throttle / Common in Asian and some European markets)
or
Mode 2 (left-hand throttle / Common in North American markets)
The icons on the right from left to right indicate the names of the gimbals corresponding to the
position of the gimbal on the radio control. Left gimbal horizontal / Left gimbal vertical / Right
gimbal vertical /Right gimbal horizontal
Rud（Yaw）/ Thr（Thrust）/ Ele (Pitch) / Ail（Roll）
3.Radio menu
3.1. Main interface
The default startup screen is as follows. The user can modify the content to be displayed to
customize the main interface.
The main interface can display the following information:

Model name, TX voltage, gimbal/switch position and trim location. Scroll to show the channel
position, values and channel monitor.
3.1.1. Reset, Statistics and About
Press and hold the ENT key to show the Reset, Statistics and
About information. The Reset menu allows for the reset of flight data, timers and telemetry
information.
3.2. System settings
Long press the left SYS button to enter the system setting page. The system setting page is
divided into 7 sections.
- TOOLS ：Tool page, which includes the setting function of the spectrum analyzer and some
third-party equipment, such as the setting function of TBS Crossfire, Frsky specific receiver
settings, and Graupner's receiver HoTT protocol settings.
- SD CARD：SD card page. In this page, you can view the contents of the SD card, and quickly set
the startup screen, model pictures, and the function of flashing the built-in /external module
firmware from firmware files loaded on to the SD Card.
- RADIO SETUP ：The radio-control setup page, this page is the basic functions of the radio
control and the settings in the default parameters of the radio control
- GLOBAL FUNCTIONS：This page can customize various global functions. Global functions are
similar to special functions in model parameters, but global functions are shared by all model,
while functions in model parameters are only used by the current model.

- TRAINER：Trainer aka Coach function page. In this page, you can set the control ratio of each
channel from the student mode radio control in the coach mode, and the intervention ratio of
the radio control in the coach mode.
- HARDWARE：Hardware setting page. In this page, you can calibrate the gimbal and voltage,
set the name of the gimbal, set the functions and names of switches and knobs, and view the
underlying parameters of the hardware.
- VERSION：On this page, you can view the radio controller hardware type, EdgeTX firmware
version, and the functional items included in the current firmware.
3.2.1 TOOLS
3.2.2 SD CARD

3.2.3 RADIO SETUP

3.2.4 GLOBA FUNCTIONS
3.2.5 TRAINER
3.2.6 HARDWARE

3.2.7 VERSION
3.3. Model selection
3.3.1. Create model and model selection
In the main interface, press and hold the ENT key to show the menu
Select to enter the model selection page, which is used to select, create, switch, delete and copy
models. Note: The model currently in use cannot be deleted, only models that are not in use can
be deleted

3.4. Model settings (Model Setup）
3.4.1 Model settings（Model setup）

Model Setup Detailed options：
Model name：Enter your model name here.
Timer1-3：
Up to 3 fully programmable timers that can count up or down.
ON
Timer is always on
Tht
Timer always on once throttle is not all the way down
THs
Timer on when throttle is not all the way down
TH%
Timer speed proportional the throttle
THR 100% Timer 1 second intervals, THR 50% Timer 2
second interval
Time Value
Setting the timer to a value above 00:00 puts it into count
down mode
Name：Name the timer
Persistent ：Timer retains its value when the Tx is powered of and on or the model is
changed
Minute call：Required SD card with sound pack installed. At each minute the value spoken.
Countdown：-Countdown broadcast, default 10s (10 seconds)
Silent
Quiet mode
Beeps
Beep
Voice
Voice broadcast countdown
Haptic
Vibration alert
E.Limits：Expand the limit. After checking, set the channel rudder limit to ± 125% (default
maximum ± 100%).
E.Trims ：Fine-tuning extension, allowing fine-tuning to cover the entire gimbal range,
instead of ± 25%
Trim Step ：Modify the precision of the fine-tuning step. The accuracy can be modified
according to actual requirements.