Graupner mz-32 - 32 Channel HoTT Telemetry Radio - RCGroups Review

Introducing Graupner's new flagship radio, the mz-32.


Is Graupner's new mz-32 the new "HoTTness"? Read on to find out!

Product:Graupner mz-32 - 32 Channel HoTT Telemetry Radio
Battery:9000 mAh LiHV
Model Memory:999 models
Gimbals:Hall sensor quad bearing 4096 resolution
Flight Modes:12
Model Types:Airplane, Helicopter, Multirotor, Vehicle, Boat
Wireless:Bluetooth & Wifi
PDF Manual:Click Here

Graupner just recently released their flagship radio, the mz-32. It has tons of features including Hall sensor gimbals, bluetooth, wifi and a beautiful 4.3" color TFT touch screen packed in a beautiful shell - oh...and did I mention 32 channels?! Graupner might not be the first name that comes to mind for R/C radios (at least in the US), but the fact is they've been producing R/C electronics since the 50's and they certainly are making their name known for quality feature-packed equipment at a fair price. With the mile-long list of features & specs on this baby, and settings not just for aircraft but for surface craft as well, the mz-32 is one of the most versatile transmitters on the market. Let's dig in and take a look at this killer transmitter!

See others' opinions and discussion on the mz-32 in THIS THREAD.

Video Review

In the Box

The Graupner mz-32 arrived in a nice full-color outer box that encased a very nice rugged aluminum & plastic transmitter case. The case itself is an excellent feature - a sleek textured black exterior with gunmetal grey trim and nicely done line-art depicting the transmitter. Inside the case, you'll find it full of quality foam to protect this beautifully designed radio.

Also inside, you'll find:

  • mz-32 transmitter
  • GR-24 12CH Receiver
  • USB charging cable
  • USB update adapter
  • LiHV battery 9000mAh
  • Transmitter stand
  • Neck strap
  • Neck strap balancer
  • Aluminum radio case
  • 16GB MicroSD card
  • Manual

Let's Take a Closer Look


As you'd expect, the mz-32 comes with a vast array of features; many more than I will be able to talk about here. The features I do mention here, are what I think are some of the more unique ones that make the mz-32 stand out from the competition.

Real-Time Telemetry

Graupners HoTT (Hopping Telemetry Transmission) technology is built around telemetry, making it a base feature with all of their products. There's no additional equipment needed to get telemetry data on the mz-32 (or any other Graupner radio for that matter). Just using the GR-24 receiver in the box, you'll be getting signal quality, temperature, and receiver voltage telemetry data. Additional telemetry data can easily be added by using Graupners line of ESC's and sensors. With customizable screens that we'll go into more below, it's a cinch to put the exact data you need to know for each aircraft in easy view.

Programmable Voice Alerts

Nothing is worse than having to take your eyes off your plane to look down at your transmitter to check your timer or telemetry data. Voice alerts to the rescue! While this may not be the latest transmitter tech, it is absolutely useful. The Graupner mz-32 comes loaded with over 600 voice files that can be combined to make virtually any phrase you please. Or, you can create and upload your own files to say exactly what you want. Voice alerts can be setup for virtually any combination of switch positions, flight modes, telemetry data or other output. For my test aircraft I setup alerts to tell me flight time remaining, and for rates (low/medium/high).

Customizable Screens

The mz-32 comes with a total of 6 screens that are accessible via the left/right buttons on the left side of the screen. Each screen can be modified using a wide array of over 100 "widgets" from categories like System, Receiver, Electric, Vario, GPS and ESC. Similar to cellphones, long-pressing a section on the screen opens a menu for selecting a widget, or editing the one you pressed on. Once a widget is selected, you are given options for how much space you want it to occupy on the screen. Each module can take up 1, 2 or 4 of the 24 total "blocks" on a screen. Some of the widgets only have 2 of the 3 sizes available to choose, but this doesn't really limit your flexibility.

Using the mz-32

While the mz-32 does come with a manual, it is only 40 pages...which as you can imagine, barely scratches the surface on everything this beast can do. Thankfully, Graupner is working hard on expanding the documentation and resources for this radio. To start, they've compiled all of the help text that you'll see on each screen in the radio. That file can be downloaded here. Additionally, a series of Youtube videos is being created to help walk you through model setup and other basics. These videos are a great 2nd step after reading the manual.

Simply put, if you can get around your cellphone OK, you'll likely have no issues navigating the mz-32. Once you tap the menu button, you're taken to an easy-to-read set of menus divided into 4 categories: Base, Function, Special and System. All of the buttons on these tabs are labeled in plain English that should make it fairly obvious what each one does. If it isn't clear, the (?) button on each screen should answer your questions. The YouTube videos mentioned previously do a pretty good job of explaining how to setup your first model and other basic configurations, so instead of giving you a step-by-step recollection of how I bound and configured one of my planes, I'll save you some reading and simply point out a couple of things that I needed to get clarification on.

When setting up dual/triple rates, note that there are *4* curves available, and that the first curve is intended to be default settings (without any rates/curves applied), which is something I wasn't accustomed to seeing. In fact, I didn't even notice that it said "All Control Off" next to the 1. This default is in position 1, which leaves curves 2-4 to match up to each position of the switch. I hadn't noticed the default on my first go around and attempted to use control 1 for all 3 positions. I had managed to get triple rates to work using curves 1-3 and control 1&2, but once I discovered the intended matching, it became much simpler. While this may be a little confusing, it actually allows total flexibility for setting rates not only on switch position, but also for flight modes, or even logical & digital switches.

When working on the model list, and other similar lists that you add/remove things from, it's not initially clear that you have to click on the number on the first one before you can add a new row. Once the row index # is clicked, an icon bar will appear on the bottom with buttons for add, delete, etc.

The current keyboard has a limited character set, which may prevent you from entering secure WIFI passwords that use certain special characters. For instance, my stock cable-modem password contains a "?", which is not available on the mz-32 keyboard. So until Graupner updates the keyboard, if I want to connect the mz-32 to our WIFI, I either need to change our network password or tether to my phone.


First, I’d like to thank Graupner for the opportunity to review their new mz-32 transmitter. In the little time I've had the mz-32 in my hands, I've been quite impressed with it! Graupner truly took all of the great features of the mz-24, and kicked them up a couple of notches for this one. It feels good in the hands, and there's a nice weight to it – it doesn’t feel cheap at all. I also love the hard aluminum carrying case! The big touch screen is very clear and easy to navigate. Cheaper touch screens sometimes feel like you have to press them with authority to get it to react, but I don't get that at all with this screen. It's very responsive to touch and most of the on-screen buttons are big enough to prevent 'fat-fingering' the wrong thing. Using the mz-32 to setup & configure my model was relatively easy with the redesigned menus which, in my opinion, are a great improvement over their previous models. Setting up more advanced models should become even easier once documentation and tutorials for the mz-32 come online. The Graupner mz-32 is truly a top-class transmitter that will fulfill your every need, with a touch of class and style in your hands. Review Policies

Our intent is to provide fair and unbiased reviews so that consumers can make informed decisions regarding new products. Some things you should know about our review process:

  • review items are provided by hobby manufacturers and suppliers, some of whom may be RCGroups advertisers.
  • Review products are sent directly to independent reviewers, chosen by
  • reviewers are not compensated by either or the reviewed item's supplier. However, they are allowed to keep the review items at no charge.
  • Published reviews reflect the opinion of the author.
  • When a conflict arises between a review sponsor and a reviewer (which is rare), RCGroups attempts to work out a satisfactory solution for all parties. In some cases, this may mean that a finished review will go unpublished, or be subjected to editing for technical accuracy. RCGroups reserves the final say as to whether an article is fit for publication.
  • It is always our intent to provide a place for honest and open commentary, and to put the needs of our visitors first. If you feel that something we've published is inaccurate, please let us know using the contact form.

Last edited by Nikolei Zinsli; Aug 12, 2018 at 11:26 AM..
Thread Tools
Aug 14, 2018, 03:39 PM
Graupner USA's Avatar
Thanks for the review and kind words.

There should be a new firmware release coming out this month that fixes some issues and will also add new functions.

Sensor Switch: Uses telemetry data to create a logical condition (on/off) that can be used for example to turn a motor on or off at certain altitudes, automatically deploy landing gear if in landing configuration and you forgot to bring the gear down etc. Endless possibilities…

Direct Adjust: Allows you to influence any standard or user mix during flight through a user defined control.

We also enhanced several existing functions based on user feedback.
Aug 14, 2018, 06:47 PM
If it's R/C, I LIKE IT!
Nikolei Zinsli's Avatar
Thread OP
Sounds like some cool additions coming!
Latest blog entry: 93" AJ Laser 230z
Aug 16, 2018, 03:58 AM
Registered User
Looks like i need to jump on the band wagon!! Amazing to see such prompt updates being done!
Aug 27, 2018, 08:45 AM
Registered User
Originally Posted by Graupner USA
Thanks for the review and kind words.

There should be a new firmware release coming out this month that fixes some issues and will also add new functions.

Sensor Switch: Uses telemetry data to create a logical condition (on/off) that can be used for example to turn a motor on or off at certain altitudes, automatically deploy landing gear if in landing configuration and you forgot to bring the gear down etc. Endless possibilities…

Direct Adjust: Allows you to influence any standard or user mix during flight through a user defined control.

We also enhanced several existing functions based on user feedback.
Any news on the update ? Date, etc.?
Thanks in advance.
Dec 09, 2018, 05:33 PM
Registered User
I am trying to program learn my new MZ-32 after the past 3 years of flying the Mx-24and it aint easy,

Im stuck on a basic option I routinely used on the 24 that appears to be gone on the 32, so hopefully someone can riddle me this:

In model select I ALWAYS had a model named new model that I would use a base for starting a new model since I used PHASES and had many 3sXg recivers that are alot of programming to get them to switched to phases.

Anyhow the ability to copy a source and a target and them rename the target to start off a new model seems to be missing..... This really sucks since now WIDGETS of a front face screen appearance are now part of a new model as well.

Its easily understood a model can be copied and its new name is XXX(1), XXX(2) ect, but it does not allow me to change the name after the copy and the (1) model is loaded.

THIS REALLY ADDS to the programming work of a new models considering, widgets, voice alerts timers , default switch voice files this is just the short list.

Am I missing something.?????.... Any help appreciated
Latest blog entry: Amt 180
Dec 09, 2018, 06:23 PM
Registered User
atreis's Avatar
Out of curiosity, where is it made?
Dec 10, 2018, 03:21 AM
Graupner USA's Avatar
After you copy the model and after loading it you can go to the model type menu and rename it

Quick Reply

Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
News Graupner MZ-32 - HoTT Color TFT Radio System Matt Gunn Radios 458 May 09, 2019 11:11 AM
Review Graupner/SJ mz-24 2.4GHz HoTT 12 Channel System pda4you Radios 2673 Mar 03, 2019 11:26 PM
News Graupner mz-24 Pro 12 Channel 2.4G.HZ HoTT Transmitter Michael Heer Radios 161 Jan 10, 2019 03:20 AM
News Graupner mz-12 PRO 12 Channel 2.4GHz HoTT Transmitter Matt Gunn Radios 97 Sep 20, 2018 07:12 AM
Review Graupner USA V-Venture HoTT RTF Electric Sailplane With mz-10 Transmitter Review Michael Heer Electric Sailplanes 22 Jan 23, 2016 12:58 PM