The DMX Bundle
New lower bundle price includes 20% off of accessories in the bundle
This bundle is a combination of the DMX-40 plus commonly selected accessories, for the purpose of simplifying the purchase of an MMX-based radio. This includes:
1. The DMX-40 Morse Transceiver, providing QRP operation on 40 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The DMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.
And now, we are adding an essential ingredient by popular demand!
5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna!
6. A small wired earbuds are also included in the package.
More details can be viewed on each of the product pages using the links above.
The DMX Complete Bundle
New lower bundle price includes 20% off of accessories in the bundle
This is the complete bundle: everything you need to get started, just add an antenna. In fact, since this bundle includes a dummy load, you don't need an antenna to start practicing with this DMX-40, and believe it or not, people have made contacts using a dummy load!
This is a combination of the DMX-40 plus a complete set of accessories, for the purpose of simplifying the purchase and use of an MMX-based radio. This includes:
1. The Single Band Morse Transceiver, providing QRP operation on 40 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The DMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna6. The DMX Powered Speaker, which provides you with a great sound from your DMX-40 for CW, AM shortwave, and of course SSB stations (Of course the DMX-40 is CW transmit only). An audio cable to connect to the DMX, and a USB charging cable are included.7. AC to USB wall plug with 2.1A and 1.0A outputs. Use 2.1A to run the DMX via the included 5V to 12V cable, and use the 1.0A output to charge the speaker.8. 5V to 12V cable, connects the USB wall plug to the DMX with enough power to transmit at full QRP power.
A small set of wired earbuds are also included, in case you want privacy.
More details can be viewed on each of the product pages using the links above. You need an antenna, and for temporary setup or portable use, check out our 40/20 NO TUNE Antenna. Also, if you are going portable, you need a 5V supply, such as our Solar Battery System. And finally, you can stash it all in the Deluxe Canvas EMP Bag!
The DMX Complete EMP Bundle
New lower bundle price includes 20% off of accessories in the bundle
This is the complete EMP bundle: everything you need to get started, just add an antenna. In fact, since this bundle includes a dummy load, you don't need an antenna to start practicing with this DMX-40, and believe it or not, people have made contacts using a dummy load! And, of course, we add in the EMP shield bag, folding keyboard, and internal canvas bag for the DMX-40 for storage in case of an EMP event. A second EMP shield bag is included to protect the speaker, 5V to 12V cable, and USB power block.
This is a combination of the DMX-40 plus a complete set of accessories, for the purpose of simplifying the purchase, protection, and use of an MMX-based radio. This includes:
1. The Single Band Morse Transceiver, providing QRP operation on 40 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The MMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna6. The MMX Powered Speaker, which provides you with a great sound from your DMX for CW, AM shortwave, and of course SSB stations (Of course the DMX is CW transmit only). An audio cable to connect to the DMX, and a USB charging cable are included.7. AC to USB wall plug with 2.1A and 1.0A outputs. Use 2.1A to run the DMX via the included 5V to 12V cable, and use the 1.0A output to charge the speaker.8. 5V to 12V cable, connects the USB wall plug to the MMX with enough power to transmit at full QRP power.9. Transceiver EMP Bundle, which is used to protect the DMX, and includes an EMP Shield bag with closer, a roll-up keyboard and interior canvas bag for the DMX (protects the inside of the EMP Shield bag).10. An extra EMP Shield bag for the speaker, USB power block, and the 5V to 12V cable, all of which have electronics inside to be protected from EMP.11. A small set of wired earbuds is also included in case you want privacy.
More details can be viewed on each of the product pages using the links above. You need an antenna, and for temporary setup or portable use, check out our 40/20 NO TUNE Antenna. Also, if you are going portable, you need a 5V supply, such as our Solar Battery System. And finally, you can stash it all in the Deluxe Canvas EMP Bag!
The DMX EMP Bundle
New lower bundle price includes 20% off of accessories in the bundle
This bundle is a combination of the DMX-40 plus commonly selected accessories, for the purpose of simplifying the purchase of an MMX-based radio. This includes:
1. The DMX-40 Morse Transceiver, providing QRP operation on 40 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The DMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.5. The Transceiver EMP Kit, providing the ability to protect the DMX-40 from EMP and providing a flexible keyboard to fit inside the EMP shield bag. Also included is an inner zipper canvas bag (not shown in image above) to protect the EMP Shield form the corners of the DMX-40.
And now, we are adding an essential ingredient by popular demand!
5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna!
6. A set of small wired earbuds are included.
More details can be viewed on each of the product pages using the links above. Add our 40/20 NO TUNE antenna - no EMP protection required!
The Original Morse Transceiver!
It's a ZERO Plus! Just a ZERO with the added feature of a built-in transceiver! Does EVERYTHING a ZERO does, and 40 meters QRP as well!
Introduced in 2020, this was the beginning of the Morse Revolution! Improved numerous times over the years of its life, it continues to be popular and at a very attractive price as a transceiver and computer in a small, lightweight, and portable low power communications system running off of 12V. Based on many customer reviews, emails, and phone conversations, we can claim to have the best decoder in the universe, backed up by hundreds of hams around the world who have tested it against everything out there!
Available in new and refurbished models
Refurbished DMX-40's are in excellent "like new" condition, with any scratched panels replaced. Visible damage is essentially non-existent or difficult to find.
There is a limited supply of the refurbished DMX-40's available, and more become available from time to time. If you see "SOLD OUT" when you visit our Refurbished product page then check back another time.
DMX-40 Overview
The DMX-40 comes with its own keyboard, protective lid, touch-screen cleaning cloth, and a screw-adaptor plug for connection to a 12 volt battery. It is a mere 11 oz of integrated electronics, including three powerful microprocessors, plus a 3-watt QRP transceiver. One microprocessor is responsible for the graphical user interface (GUI), while the other handle the many tasks required to produce an amazing experience for the user. No computer required - built in! All you need is a 12V power source, an antenna, a powered speaker or headphone, and the included keyboard and you are ready to join the CW revolution!
World’s Best CW Decoder! Decodes in Noise!
We are not just blowing our own horn here: it is our customers who tell us this, based on thousands of hours with hundreds of locations and users all over the globe, who have compared the DMX-40 decoder with everything else out there! The tell us nothing beats it! The decoder is based on a combination of analog and digital signal processing to separate the signal from the noise, and can on occasion decode a signal you can’t even hear under the noise!
2 in 1: Base Station Companion & QRP Transceiver
The DMX-40 is a unique 2-in-1 product: an intelligent decoder and encoder for your base station - we call it External Mode - and a built-in QRP transceiver for 40 meters. In External Mode, augmenting your main transceiver, it can operate on any band your transceiver operates on. In QRP stand-alone transceiver mode, it works only 40 meters. The accessory External Transceiver Cable Assembly is available to simplify the connection to an external transceiver.
Powerful yet Easy to Use GUI
Equipped with over 10 unique features found on no other transceiver on the market, at any price, along with its color touchscreen GUI, extensive help menus, powerful computer automation - essentially a PC and a transceiver in a single box - and 28 different graphic screens, the DMX-40 offers you more than anything else on the market, and is still small and lightweight. It comes with a protective lid, and many accessories are available.
Learning Code? Or just Texting?
The DMX-40 is the absolute best training tool for learning Morse code. Utilizing "Cognitive Association" for learning to hear incoming code and translating each character and word automatically in your head happens after only a few months by listening and watching the code appear translated into text on the LCD. Of course you are already doing this - so there is zero work involved - just happens: your brain learns. Our customers tell us after a few months, they start thinking the character in their mind before it shows up on the screen. Effortless learning!
For sending, use the key to send to the decoder, in Receive Mode. The decoder processes this as if it is another station, and tells you what it thinks you are sending, and the speed you are sending at. Much better than just listening to your code. And of course you can hear the code as well on the DMX-40 headphone out.
Great Technicians: Get on HF!
The DMX-40 is the perfect solution for technician class licensees for getting on the HF bands, without having to learn CW first! Start out by merely texting, and using the built-in QSO automation, and grow from there, using our powerful RPL (Rig Programming Language) to customize the rig to your specifications!
Give Your Teen Something Fun!
The DMX-40 is great for teenagers! Get them off their social media, and onto World Media, via ham radio! It will train their brain from the crazy thinking today into a strong, logical thinking process, and it will be tremendous fun, looking for that contact in a distant country, or finding a friend in Europe, South America, or the tropical islands!
How About Advanced Hams?
You might think that a product like the DMX-40, which was designed for emergency situations (hams use CW to get out in emergencies because it gets through when other modes don’t) would not provide anything useful for an advanced ham operator. WRONG! Many operators can copy 15 to 20 WPM but can’t copy 30, for example. Some have tried to learn CW but have failed, for many reasons. Others have physical limitations that make it difficult to use a key. The DMX-40 provides a solution for all of these cause and more. The powerful RPL microprogramming language enables an advanced ham operator to extensively customize the automation of the DMX-40 for contests, net control, and general operation according to their particular operating style.
DMX-40 Summary
The DMX-40 has something for everyone! At a very affordable price, and an even more affordable price for an almost new Refurbished unit! You can’t get features like this anywhere else, and the price is a great inflation fighter! The DMX-40 price has survived the Biden Inflation and remains at the same price it was at in 2019!
KEYBOARD IS INCLUDED, as well as a small set of wired earbuds! Also check out our DMX-40 accessories!
NOTE: The DMX-40 DOES NOT SUPPORT PLUG-IN BAND BOARDS!
DMX-40 Bundles
To make it easier to purchase the DMX, we offer 4 bundles:
The DMX Bundle: this includes a stand, dummy load, cable adaptor, and cable assembly
The DMX Complete Bundle: to #1 above we add a powered speaker, A/C USB power block, 5V to 12V cable, audio cable, and USB cable for a truly complete setup
The DMX EMP Bundle: To #1 above we add an EMP Shield zip-lock, a roll-up keyboard and cable, and an interior canvas bag for the DMX to protect the EMP Shield from sharp corners on the DMX
The DMX EMP Complete Bundle: To #2 above we add an EMP Shield zip-lock, a roll-up keyboard and cable, and an interior canvas bag for the DMX to protect the EMP Shield from sharp corners on the DMX. We also add a second EMP Shield bag to protect the speaker, USB Power Block, and 5V-12V cable, all of which have sensitive electronics within them
Download Data Sheet DMX-40 Videos DMX-40 Review
Mini-Keyboard for PreppComm Transceivers
The Mini Keyboard is a lightweight and compact keyboard for the MMX or DMX-40 Morse Code Transceiver, as well as future PreppComm Morse Code transceivers. It weighs a mere 0.7 lb, and uses very little power.
NOTE: You do NOT need to order a keyboard when ordering a DMX-40 or an MMX. One keyboard is included in your kit!
Backup Keyboard
Of course the keyboard will work with most computers as a keyboard, as well, such as when your keyboard batteries are dead, and you don't have time to recharge or you don't have any AAA or AA batteries handy.
DMX/MMX High Power Solar Battery System
USA SHIPPING ONLY!*
The High Power Solar Battery System
The High Power Solar Battery System includes the following items:
1. A compact, 4 panel 11 watt solar panel with >22% efficiency for full 5V 2A USB 2.0 charging power. This is a very nice, compact unit that feels like a small book when folded up. This is the most compact design for charging just one device at a time, or two devices at a slower rate.
2. Our Solar Battery, a 20 Amp-Hour battery with a great flashlight and a compass built in. This is a very powerful battery, only 29% less power than our Super Power Solar Battery System.
3. A 5V to 12V cable to power your MMX or DMX from the battery bank
4. A USB A female to C cable to connect the solar panel to the battery for charging at the maximum rate.
Our Super Power Solar Battery System provides additional features and more power.
About Amp-Hours
Batteries based on multi-cell Li-Ion batteries are normally rated at the voltage of a single cell, typically 3.6 volts. This is true of this battery, as well. However, there is a power conversion circuit to up the voltage to 5V for the USB outputs. Because of the higher voltage and the loss of energy in the conversion process, typical output at 5 volts is around 12 - 13 Amp-Hours, and at 12V, after being converted a second time, is about 4.8 - 5,0 Anp-Hours. Compare this to. typical Gel Cell 12V battery, rated at 7 Amp-Hours. Sounds like the Gel Cell - at 3x the weight - wins, right? WRONG, because you are not supposed to discharge the Gel Cell more than 50% of charge - that is, only 3.5 Amp-Hours! So this High Power battery, which has over 4.8 Amp-Hours of actual usable power, is significantly better, and ⅓ the weight and size.
In addition, all of the components can be packed into the included zipper canvas bag, shown in the image. Weight is less than 2 lbs!
Performance
The total package provides all you need to power your MMX or DMX off grid, either for a short period, or for an extended period. Your MMX or DMX will operate in receive mode for over 30 hours from a fully charged battery without recharging. A typical usage pattern allows you to operate continuously for 8 hours a day both transmit and receive on only 2 hours of sun per day. A complete battery recharge takes about 6-7 hours of sun.
IMPORTANT: The 5V to 12V cable that connects your MMX or DMX to the battery provides 12V with current limited. This prevents damage to your PA (power amplifier) when under stress from high SWR. This is a very valuable safety feature.
*Batteries cannot be shipped internationally. You can request a refund via PayPal after you receive your product for the cost of the batteries in that case.
Get ready to roll in style with our DnD D20 Shirt featuring a retro sunset design. Whether you're battling dragons or slaying orcs, this shirt will keep you cool and comfortable (and looking cool). Perfect for any tabletop adventure.
Unleash your inner adventurer with our 'Druids Do It In The Woods' t-shirt! Embrace your role, express your style, and let the world know just how your favorite class gets things done in the realm of fantasy! This fun D&D druid class shirt is sure to be a hit on game night.
Easy and Tidy Connection to Your External Transceiver!
The cable assembly accessory is an essential add-on for anyone wanting to use their DMX-40 or MMX Morse Code Transceiver with an external transceiver (External Mode). The cable assembly actually consists of two separate cable assemblies:
The first cable connects the KEY IN/OUT connector on the DMX-40 to your straight key and the key in on your external transceiver, using either a 3.5mm or ¼" plug.
The second cable connects the AUDIO IN connector on the MMX or DMX-40 to the headphone jack on your external transceiver (both 3.5mm and ¼" plugs are supplied), and an external powered speaker.
Save a bundle, and have a very neat setup as well, with this custom-designed cable assembly package made for this application! No more multiple Y connectors and jumbled wires!
Membership to the Feral Goblin Social Club is unofficial, unhinged, and absolutely mandatory for creatures of chaos. Featuring a delightfully disheveled goblin in a dramatic pose and elegant script text, this tee is perfect for those who prefer their mischief with a touch of class (and a dash of dirt). Established 2025, but let’s be honest—we’ve always been here.
PreppComm Folding Solar Panel
This solar panel was designed to fit into the new Mini GO Bag front compartment. It is very compact, and opens to four high efficiency (greater than 23%) mono crystal panels, which will provide the full charging capacity for PreppComm batteries and products.
The larger solar panels we also sell as part of the Super Power Solar Battery is capable of charging both our batteries and an additional load, such as a cel phone, at the same time. This solar panel is designed to charge just one at a time, and this is smaller, lighter, and less expensive.
The panels are enclosed with 600D Polyester, to IP63 standard. This means that dust and dirt can't get inside, and some sprinkles from rain will not hurt, i.e., they are water resistant and dust proof.
While there are dual USB outputs, we recommend only using one at a time. Otherwise, you will extend the charging time 2x, as the current will be shared between the two outputs.
A stretch band is provided to keep the panels closed when not in use. An LED next to the dual USB output connectors indicates charging is ongoing.
Size closed: 170x130 mm (6.7x5.1 in)
Size open: 170x534 mm (6.7x21 in)
Weight: 0.3 kg (0.66 lb)
Assembling puzzles is the perfect family bonding activity. Treat yourself to a unique puzzle and gather your loved ones for an evening filled with joy and teamwork.
• Pressed paper chipboard with adhesive, 0.06″ (1.53 mm) thick
• 252 pcs puzzle size: 10.62″ × 13.62″ (27 × 34.6 cm)
• 520 pcs puzzle size: 15.74″ × 19.74″ (40 × 50.1 cm)
• Digitally printed
• Semi-gloss finish
• Vibrant colors
• Can be used as wall decor
• Blank product components sourced from the US
Warning: Choking hazard—small parts. Not for children under 3 years.
Important: This product is available in US only. If your shipping address is outside this region, please choose a different product.
Show off your nerdy side with this "Lawful Evil" shirt! Perfect for any DnD fan, this quirky tee combines humor and style in one. Embrace your inner geek and let everyone know your preferred alignment.
Raise a mug and roll for initiative with this “Let’s Meet in a Tavern” design! Inspired by the classic starting point of countless Dungeons & Dragons campaigns, this shirt is perfect for adventurers who know the best quests begin over drinks. Whether you’re a dungeon master, dice goblin, or tavern regular, this design is a critical hit for your next game night, ren faire, or pub crawl.
The MMX Bundle
New lower bundle price includes 20% off of accessories in the bundle
This bundle is a combination of the tri-band MMX plus commonly selected accessories, for the purpose of simplifying the purchase of an MMX-based radio. This includes:
1. The tri-band MMX Morse Transceiver, providing QRP operation on 80, 40, and 20 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The MMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.
And now, we are adding an essential ingredient by popular demand!
5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna!
6. A small set of wired earbuds.
More details can be viewed on each of the product pages using the links above.
The MMX Complete Bundle
New lower bundle price includes 20% off of accessories in the bundle
This is the complete bundle: everything you need to get started, just add an antenna. In fact, since this bundle includes a dummy load, you don't need an antenna to start practicing with this MMX, and believe it or not, people have made contacts using a dummy load!
This is a combination of the tri-band MMX plus a complete set of accessories, for the purpose of simplifying the purchase and use of an MMX-based radio. This includes:
1. The tri-band MMX Morse Transceiver, providing QRP operation on 80, 40, and 20 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The MMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna6. The MMX Powered Speaker, which provides you with a great sound from your MMX for CW, AM shortwave, and of course SSB stations (Of course the MMX is CW transmit only). An audio cable to connect to the MMX, and a USB charging cable are included.7. AC to USB wall plug with 2.1A and 1.0A outputs. Use 2.1A to run the MMX via the included 5V to 12V cable, and use the 1.0A output to charge the speaker.8. 5V to 12V cable, connects the USB wall plug to the MMX with enough power to transmit at full QRP power.9. A small set of wired earbuds is included for privacy listening.
More details can be viewed on each of the product pages using the links above. You need an antenna, and for temporary setup or portable use, check out our 40/20 NO TUNE Antenna. Also, if you are going portable, you need a 5V supply, such as our Solar Battery System. And finally, you can stash it all in the Deluxe Canvas EMP Bag!
The MMX Complete EMP Bundle
New lower bundle price includes 20% off of accessories in the bundle
This is the complete EMP bundle: everything you need to get started, just add an antenna. In fact, since this bundle includes a dummy load, you don't need an antenna to start practicing with this MMX, and believe it or not, people have made contacts using a dummy load! And, of course, we add in the EMP shield bag, folding keyboard, and internal canvas bag for the MMX for storage in case of an EMP event. A second EMP shield bag is included to protect the speaker, 5V to 12V cable, and USB power block.
This is a combination of the tri-band MMX plus a complete set of accessories, for the purpose of simplifying the purchase, protection, and use of an MMX-based radio. This includes:
1. The tri-band MMX Morse Transceiver, providing QRP operation on 80, 40, and 20 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The MMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna6. The MMX Powered Speaker, which provides you with a great sound from your MMX for CW, AM shortwave, and of course SSB stations (Of course the MMX is CW transmit only). An audio cable to connect to the MMX, and a USB charging cable are included.7. AC to USB wall plug with 2.1A and 1.0A outputs. Use 2.1A to run the MMX via the included 5V to 12V cable, and use the 1.0A output to charge the speaker.8. 5V to 12V cable, connects the USB wall plug to the MMX with enough power to transmit at full QRP power.9. Transceiver EMP Bundle, which is used to protect the DMX, and includes an EMP Shield bag with closer, a roll-up keyboard and interior canvas bag for the DMX (protects the inside of the EMP Shield bag).10. An extra EMP Shield bag for the speaker, USB power block, and the 5V to 12V cable, all of which have electronics inside to be protected from EMP.11. A small set of wired earbuds for listening in private.
More details can be viewed on each of the product pages using the links above. You need an antenna, and for temporary setup or portable use, check out our 40/20 NO TUNE Antenna. Also, if you are going portable, you need a 5V supply, such as our Solar Battery System. And finally, you can stash it all in the Deluxe Canvas EMP Bag!
The MMX EMP Bundle
New lower bundle price includes 20% off of accessories in the bundle
This bundle is a combination of the 3-band MMX plus commonly selected accessories, for the purpose of simplifying the purchase of an MMX-based radio. This includes:
1. The tri-band MMX Morse Transceiver, providing QRP operation on 80, 40, and 20 meters, plus all bands and more power using your existing station transceiver. Keyboard is included.2. The Transceiver Cable Assembly, enabling convenient interconnection to your existing transceiver for more power and more bands 3. The MMX stand, to enable the screen to be visible at a 45 degree angle4. The cable adaptor, for use to connect to a RG-239 connector on an existing antenna. This is used for QRP operation, using the built-in transmitter and receiver.5. The Transceiver EMP Bundle, adds protection to your MMX and provides a flexible keyboard to fit in the EMP shield bag. Also includes in inner canvas bag (not shown in photo above) photo) for enclosing the MMX to protect the EMP Shield from the corners of the MMX.
And now, we are adding an essential ingredient by popular demand!
5. HF/VHF/UHF to 6 GHz 5W Dummy Load, to keep your transmitter safe when not using a properly tuned antenna!
6. A small set of wired earbuds for listening.
More details can be viewed on each of the product pages using the links above. Add our 40/20 NO TUNE antenna - no EMP protection required!
MMX Morse Transceiver Reference Manual
PDF files for the MMX Reference Manual and the MMX/ZERO Quick Start Guide are of course made available in the Document Library under the website Resources menu item. However, some people prefer paper! Note that ePub versions also are available, which can be used in a Kindle or other document readers.
Version 1.2
This is version 1.2 of the Reference Manual, and has many improvements. Besides being in full color, it is also printed in a beautiful bound version on glossy paper like a magazine, only with heavier paper. And, it's 30% lighter than the original edition!
Many errors were corrected from the original edition, and more information was added. However, please note the following:
START WITH THE MMX/ZERO QUICK START GUIDE
The Quick Start Guide, version 1.2, has also gone through even more major revisions, so it is now set up for both the MMX Morse Transceiver and ZERO. Use the Reference Manual for .... reference. When you need more info. Use the Quick Start Guide to get everything set up and running, and to learn basics.
Multi-Band QRP Portable Computer Plus Transceiver!
Check out the MMX Bundles below!
NOTE: while the receiver in the MMX can tune outside of the amateur radio bands, the transmitter is restricted to the frequencies allocated by the FCC for amateur radio operation. In addition, by entering your license, the frequencies may be additionally limited based on the available frequencies allocated for your license level.
The MMX Multi-band Morse Code Transceiver is the evolution of the DMX-40 Morse Code Transceiver,and includes the keyboard and a small pair of wired earbuds! It has the same industry-leading decoder, the same high sensitive SDR receiver, 10 frequency memories per band, RPL microprogramming for custom automation, and more. However, what is added is a band board plug-in system that supports up to 3 bands. Currently, the supported bands include 80, 40, and 20 meters. You can purchase a single band MMX, and add other bands later, purchase a dual band MMX, and add the third band later, or even get all three bands on your initial order!
Specifications are similar to the DMX-40+, such as receiver sensitivity of -119 dBm. Power output is highest on 40 meter, and slightly lower on 80 and 20 meter bands, as listed in the Specifications tab in the right column.
The MMX-ZERO!
A version of the MMX is available that is JUST for using with an existing station. No QRP transceiver inside. It's called the MMX-ZERO, or ZERO. Check it out!
Better, Easier, Relaxing QSO's at Higher Speeds!
Do you need help decoding those fast senders? Do you want a less stressful QSO? Not only do we help you decode with the best decoder in the industry, but you will gradually learn to do so as well by way of cognitive association! For sending, you can use a straight key, the built-in keyboard to Morse system with automatic station ID's and hand-offs, auto-CQ and station calls, automatic capture of the other station's call sign, plus the powerful RPL language for microprogramming to customize of the automation or create your own automations. And, you can get help and practice sending using the build-in decoder to listen to your keying in receive mode. It will treat you as "just another station" and decode your signal, give you your speed, and tell you what other stations would think you had sent. Great key training! And don't forget to start by pressing the Space Bar to restart the decoder before you begin keying!.
Another stress reducer! The built-in typing speed test function sets your maximum transmit speed to match your typing speed! This means that - even if the other guy can type or send at 35 WPM, but you can only type at 22 WPM, that is how fast you will go, enabling you to have time to partially fill the type-ahead buffer so you can relax and edit your keyboard mistakes, and have a little time to think about what you want to say next. A great stress reducer. Of course if the other station is sending at a lower speed, your MMX will match them so they can decode you!
Talk about stress reducing, the automatic capture of the other station's call sign is a great one! It automatically appears in the CCS button (CCS is Captured Call Sign), and is used for the automatic station ID's and hand-offs. No more quick scribbling to write down their call sign! Or typing station ID's over and over. Even a Handle, QTH, Rig, Antenna macro built-in so you can send that info with a single keystroke!
If you want to use a paddle or iambic key, an external keyer is required to convert your key to straight key or "pure Morse" output to feed into the MMX.
So, up your game! Get an MMX to go with you for a great experience in QRP with a lightweight powerful computer plus QRP transceiver! Great for POTA, SOTA, etc. Or, get an MMX attached to your station using our External Transceiver Cable Assembly to make it easy and neat to connect and integrate your station and the MMX as your decoder and encoder. You can also just use the MMX as a decoder, with no keyboard by pressing the status line to restart the decoder
Videos And More Info!
There is lots more features: check out our main features on the Features tab in the right panel, and our More Features list!
You can Download Data Sheet here.
Below are two video links. The first is a long open box to QSO live demo via Coffee and Ham Radio on YouTube. Note that the MMX is accidentally placed into CTX mode during much of the session (and thus can't decode human code, or HCW). I finally noticed that, and after that, things went a lot better!
MMX Live Demo
Since the MMX is just a DMX-40 with band cards, the DMX-40 videos are very helpful and on-target for learning about the MMX:
DMX-40 Videos
And here is a look inside the MMX. Note: What comes with the MMX is misrepresented in this video. Only the keyboard, cleaning cloth, and power adaptor come with the MMX, but otherwise, pretty accurate:
Also, for more information, read the DMX-40 description. The MMX has all the same functions and features, but 3 band capability!
What's Inside the MMX
The MMX Bundles
To make it easier to purchase the MMX, we offer 4 bundles:
The MMX Bundle: this includes a stand, dummy load, cable adaptor, and cable assembly
The MMX Complete Bundle: to #1 above, we add a powered speaker, A/C USB power block, 5V to 12V cable, audio cable, and USB cable for a truly complete setup
The MMX EMP Bundle: To #1 above we add an EMP Shield zip-lock, a roll-up keyboard and cable, and an interior canvas bag for the MMX to protect the EMP Shield from sharp corners on the MMX
The MMX Complete EMP Bundle: To #2 above we add an EMP Shield zip-lock, a roll-up keyboard and cable, and an interior canvas bag for the MMX to protect the EMP Shield from sharp corners on the MMX. We also add a second EMP Shield bag to protect the speaker, USB Power Block, and 5V-12V cable, all of which have sensitive electronics within them
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International Orders
Be aware that by purchasing a product from the USA will require going through customs in your country, and typically you may be required to pay duty on your order. Check with your local authorities for details. Also note that if your country uses the VAT tax system, VAT taxes will also apply. Finally, UPS also typically charges a fee for handling the collection of duties and taxes. USPS does not, but their shipments take longer.
Meet the MMX Nomad!
MSRP $899 Yours for only $688!
The Nomad Experience
It is hard to describe the experience of using the MMX Nomad. Initially, there is a little fumbling to open the case, due to the magnetic closure system. We added thumb presses on the lid to assist with that. Once you get used to how to open the lid, the experience is truly awesome - especially if you have used a different setup for Morse code, such as an MMX with its separate keyboard and cable, a battery bank with its cable, a speaker or earbuds with their cable, and an SWR bridge with its cable. Ditch all of that!
Only one piece to pull out!
Everything built in!
Wire-less (no wires and plugs)
Turn it on, put your hands on the keyboard! It immediately feels so RIGHT. So EASY! Like it was always meant to be!
Whoa! Your brain screams "GOTTA HAVE IT!"
This product has been an idea in my mind, and then in various stages of development for there years. I had to learn how to model in 3D. I had to learn how to use a large 3D printer, and how to master all of the settings to get the result I wanted. But most of all, I had to figure out how to do a lid with a hinge! And how to make the lid snap shut! Oh, the number of different ideas that failed. The last idea was to use magnets. Oh, the number of magnets that were too weak and small. This is not an injection-molded machine - thus the precision of each piece is not exact. I had to learn how to compensate for that. There was a LOT of learning to get the idea into reality, and then, ultimately, into your hands to enjoy. -- Eric, AF7YQ
Overview
The MMX Nomad is a complete ham station - just add an antenna! It receives and transmits Morse code, and receives SSB and AM. EASY to set up - just open the lid, and press the recessed power button on the rear panel! No plugging and unplugging wires, and trying to arrange all the pieces and wires to avoid RF pickup and other issues. Just turn it on and open! Voila! You are on the air! EASY! Who does not like easy? This is especially nice for those of you who don't want to fiddle around with all of the pieces and connecting wires. What a rats nest! NO LONGER! Check it out!
MMX 3-Band Morse Transceiver (80/40/20 M) Receives short wave, SSB and AMPowered Speaker20,000 mah Li-Ion Power Bank with BMS(BMS = Battery Management System)Solar Battery Charger via USB C connectorBuilt-in KeyboardTUNE Low-Power Mode with Reflected Power Meter to Assist Antenna TuningHigh Power Mode for higher power outputSupports MMX External Transceiver ModeAuxiliary Connector Supports External Power AmplifierAuxiliary Connector Supports Disabled AssistExternal straight key support
It's an MMX, plus...
The transceiver has all of the features of the MMX, with all three plugins installed (80, 40, and 20 meters). The power system is charged via a USB 3.0 C connector from an included solar panel, or via an included AC USB wall plug, or any USB 2.0 female connector. Power requires for maximum charge rate: 5V at 2+ amps. Battery level is displayed on the main screen, and the system will automatically power down when the battery voltage level goes to the minimum level specified by the battery manufacturer. Charging of course likewise does a careful process that limits the battery voltage and current maximums as specified by the manufacturer. This BMS feature prevents over and under charge, as well as excessive current into our out of the battery system.
Dual Mode Support
The MMX Nomad also supports External Mode: connect to an external transceiver, using its receiver and transmitter instead of the built-in transceiver. Now, you are free to use ANY BAND your external transceiver works on! No more band limitations! And probably more power and perhaps a better receiver, as well. So the Nomad is a dual function computer system, with three microprocessors combining their processing capability to give you the standard in decoding ability, even in heavy noise and the standard in encoding ability with frequency memories, automatic station ID and call sign capture, type-ahead buffer and auto speed control with a typing test built in, and micro-programs aka macros.
Audio and RF Power
While there is a built-in speaker amplifier and speaker, a headphone jack is also provided, which, when used, disconnects the speaker. Earbuds are included.
The high power mode increases the power output (and reduces the battery charge more rapidly). Expect to see from 50 to 75 percent more power output in this mode, up to 5-6 watts, depending on band and frequency within the band. A single letter H or M for high and medium indicates the power level on the main screen.
And an Auxiliary Connector
The auxiliary connector includes the Transmit/Receive line for controlling an external RF power amplifier, and CW IN and CW OUT lines for use by external devices to assist the deaf, blind or other physical limitations. It also includes the KEY IN line, also available on the KEY IN/OUT jack.
MMX Nomad GO Bag Portable!
The MMX Nomad is packed into a small, easily carried case, with powerful magnetic closures. it weighs slightly over 3 lbs (3.14 to be exact), and is a mere 11 ½ inches wide, 8 ½ inches deep, and 2 ¼ inches high in the rear.
The MMX Nomad includes our Folding Solar Panel and our Mini GoBag, as shown in the photo, plus USB 3.0 cable and USB Power Cube, plus ear buds, and weighs about 4 lbs. Pen not included. The cable connect the either the Folding Solar Panel, any AC outlet via the Power Cube, or any USB 2 amp output for charging - from the sun, or an external battery pack with a 5.0V USB output, a laptop with a USB output, or directly from AC via our included USB Power Cube. Charge it anywhere! If you want to carry extra power that does not require sun power, consider our two battery systems or our solar battery.
Battery Life and Care
The battery system includes four Li-Ion 21700 5000 mah batteries. Because of the built-in BMS, no particular care is required. At end of life, the batteries can be replaced.
Operating time with the built-in batteries: receive-only, over 80 hours. Mixed use with typical transmit/receive ratios, over 40 hours. So for a typical maximum use per day of 4 hours, that is 20 days and 10 days - quite a good margin for a weekend or hike into the woods. You don't even need the PreppComm Solar Battery or the Folding Solar Panel, unless you are out in the wild for a long time, or forget to turn the Nomad off, for example.
The GO Bag with the solar panel and other included accessories is about 4 lbs.
Battery life is measured in years. We anticipate you should start seeing a gradual decline in charge capacity after 2-3 years, and useful life out to 10 years.
Note: earbuds are not shown in the image. Also included is a microfiber cloth for cleaning the screen.
Add Bands to your MMX!
If you purchased an MMX Morse Code Transceiver with less then its full complement of bands, you can always add a band board at a later time.
Each band board contains the specialized frequency-sensitive components and control circuitry for the band it was designed to operate on. The band board is automatically sensed and the band is automatically added to the available bands via the Frequency Button on the Main Screen. When you select the band for the card, it is automatically connected into the circuitry of the SDR receiver and the transmitter, and ready to use instantly.
Each band board also contains protection components to prevent overload of the final power amplifier (PA) of the transmitter in adverse circumstances. The protection circuit is automatically resettable in most circumstances. While it is very unlikely to cause interruption of the ability to transmit on its band due to a failure of the protection components, a backup band card is not a bad idea in cases where getting one repaired is difficult.
Currently available are 80 meter, 40 meter, and 20 meter band cards.
This is the reference manual for the MMX ZERO. It focuses only on the ZERO capabilities, with no reference to the MMX transceiver, which is not built in. ZERO means no bands built-in. The manual is printed in full color in magazine format on glossy paper.
Included in the manual are instructions for setting up a transceiver, using the Icom 7300 as an example. The user will have to translate that to their own transceiver, as different companies use different terms for the same thing, and different methods or controls for settings.
It is strongly recommended to use the MMX & ZERO Quick Start Guide to begin using your MMX ZERO, and then use this manual the way it was intended, as a reference for information. The manual has a rich set of appendices that have a lot of useful information, for example.
Of course this manual is available as a free PDF download in our Document Library.
