1. Introduction to the DMX-40 Morse Code Decoder & Converter Transceiver

This is the first in a series of 8 videos designed to give the viewer a overview of the operation and function of this very unusual transceiver. Unlike most transceivers, the interface is a keyboard and a color touchscreen. Its operation is unique - it has no direct competitor. This series will help you understand what makes this product a very attractive option for a radio operator looking for an opportunity to operate on the HF bands with Morse Code without having to learn it first. The DMX-40 will help you learn, if that is your goal, or it will allow you to operate on 40 meters (or any other band if you have a base station) with only a technician class license and no knowledge or experience of Morse Code. It enables infrastructure-free communications alternative for preppers bound to a fallible repeater with their handheld VHF/UHF transceivers. Fun to use, powerful 3-microprocessor automation and power!
Buy the DMX-40 here: bit.ly/PreppCo...

[@jeffallen6459]

Any plans to come out with an 80m version of this? That would be great for nvis.

[@preppcomm]

We do have exactly what you are looking for, introduced on March 12, 13 at the QSO Today Virtual Ham Expo. It is the MMX Multi-Band Morse Code Transceiver. It has 3 slots for band plug-ins. You can order one, two, or 3 bands, choosing currently from 80, 40, and 20 meters. check it out: www.preppcomm.com/products/dmx-40-transceiver?KZbinQ

[@preppcomm]

Not only plans, but fulfilled plans! On March 12 and 13 of this year, we introduced the MMX MultiBand Morse Code Transceiver! It has all of the bells and whistles of the DMX-40, a better (lower noise) power supply, and three "slots" for plug-in band PCB's. We currently support 80, 40, and 20 meters. Check it out! www.preppcomm.com/products/dmx-40-transceiver?KZbinQ

[@echo-hotel]

I hear you need a 10w dummy load attached if you wish to use another transceiver. Does it come with one? Also should you use ferrites to help keep things clean? Heard it bleeds out badly if any cable is crossed. Even if that’s not true what kind should I get to help, just in case?

[@preppcomm]

A 5W dummy load is fine, and you can get one from Amazon for around $7. No, it does not come with one. We are fighting the rapid increase in parts cost (up to 40% in some cases), so little extras are out of the question at this time as we hold our price. I don’t think you need ferrites, but if you do, putting one on the keyboard cable is OK. We have internal filters, but if you run your keyboard wire next to the antenna wire, you are going to have trouble. It is not “bleeding out badly” but it is RF off of the antenna wire - depending on your load, you may have a lot, or a little. It’s just good practice to not run RF power and low power digital together due to capacitive coupling. I would not worry about this - it is information blown out of proportion by whoever. Follow good practice and you should be fine. Another good practice - don’t have the keyboard wire running all over the place. Bundle it up so it is neat and tidy, and the connection between keyboard and DMX-40 is short. Otherwise, you are just adding an antenna between the keyboard and the DMX-40, and if you have RF in your shack, it will pick it up, and maybe even overload our built-in RF filters. SO, the word is, follow good engineering practice, and you should not have any problems at all. We offer these tips because many hams have no idea with good engineering practice is. We are not offering this information because there is something wrong with the DMX-40.

[@preppcomm]

Contact the factory for help, or access the PreppComm Community at preppcomm.mn.co.

[@keelieyohara7246]

This looks interesting. What is the price range?

[@preppcomm]

It's price range is $349 to $349... check out our website at PreppComm.com

[@timk7749]

Why did you use such a non standard, as far as Amateur Radio goes, antenna jack? Seems like a BNC should have been the logical choice. Other than that it looks interesting. 73 de KF7VUT

[@preppcomm]

@@timk7749 The SMA connector comes with a PCB edge connector. I don't know of a PCB edge connector for BNC. Of course you can get a BNC to SMA adaptor and keep it attached.

[@preppcomm]

@@timk7749 And BTW, it is quite standard on VHF/UHF.

[@GearZenChannel]

I have a rollup keyboard that I would like to use. What kind of keyboards are compatible?

[@preppcomm]

PS/2 compatible, USB plug

[@lupacchinobros]

KO4POA...how do we know we are in external mode. Do I hook up to key out to my key input to my external tranciever? Im a new ham and Im still trying to figure this out

[@ericanderson6867]

Touch the frequency button on the screen.

[@preppcomm]

it shows "External" rather than a frequency in the Frequency Button on the Main Screen.