Summary of Contents for PreppComm MMX
- Page 1 Morse Made Easy™ QUICK START GUIDE By Eric C Anderson, PreppComm Version 1.0, May 2022 Copyright © 2020 PreppComm. All rights reserved . ...
-
Page 2: Before You Begin
"Transceiver Mode." In this use, you only need the MMX, the keyboard, a set of headphones or powered speaker, and an antenna (or dummy load if you are learning how to use it). Go to Section I below. External Transceiver Decoder/Encoder... -
Page 3: Section I: Qrp Mode Setup
Copyright © 2020 PreppComm. All rights reserved. I. Section I: QRP Mode Setup Set up the MMX as shown in Figure 1 below. Do not apply too much force when plugging in the keyboard - make sure you have the USB plug correctly oriented and aligned. -
Page 4: Section Ii. Pressing It Switches To Your Lowest Band Transceiver Function. Pressing Repeatedly Will Cycle Through The Available Bands And External Mode
Copyright © 2020 PreppComm. All rights reserved. The MMX start up in External Mode, or Companion Mode, and is discussed in detail in Section II. Pressing it switches to your lowest band transceiver function. Pressing repeatedly will cycle through the available bands and External Mode. - Page 5 Copyright © 2020 PreppComm. All rights reserved. FIGURE 4: MAIN MENU 4. Press the LOCAL STATION SETUP button at the top of the menu. The Call Letters entry screen will display, as shown in Figure 5 below: FIGURE 5: CALL LETTERS ENTRY SCREEN 5.
- Page 6 Button works (see Figure 3). The Frequency Button The MMX can be thought of as two separate parts: the computer part, and the transceiver part. The computer portion is always active when power is on. When you see a frequency value in the Frequency Button, the transceiver section is also enabled, and the receiver or transmitter is active, depending on receive/transmit state.
- Page 7 7. Press CALL to start the directed call sequence. Note it will automatically use 20 WPM from recent history. 8. Watch as the MMX calls the specified station. Press CALL again to end the sequence. Note that KN is appended at the end, which means "only the station I am calling, come back." ...
- Page 8 Copyright © 2020 PreppComm. All rights reserved. 10. Watch as the MMX transmits the answer-validate sequence. This is a short station ID used when you are responding to another station’s CQ (general call) to attempt to establish a 2-way communication. If they answer you, then a 2-way has been established, and communication can begin.
- Page 9 NOTE: For this section, you will need a real antenna, and the Frequency button should show a frequency value, not External. Press the button to switch to an available band, which turns on the transceiver inside the MMX. 1. Background Obviously, the first thing you need to do to tune in a station is...
- Page 10 FIGURE 7: RECEIVE MODE KEYBOARD COMMANDS There is a large version of this layout in Appendix VI of the MMX Reference Manual you can use print out and as a guide. For now, just note the following keys: a.
-
Page 11: Volume Controls
Copyright © 2020 PreppComm. All rights reserved. 4. Volume Controls There are two separate volume or gain controls on the MMX. One controls the audio volume going to the headphone jack. The other controls the signal gain to the decoder. - Page 12 Copyright © 2020 PreppComm. All rights reserved. 8. When you first tune into a new station, with CW IN LED blinking, press the SPACE bar to restart the decoder. The decoder will start collecting data, and when it has enough, it will determine the sender’s speed and measure 5 different factors related to the specific style of the sender’s code, or hand.
- Page 13 Practice practice practice! There are two major areas to practice: 1. Operating the MMX: This is the easy part. Use the MMX Reference Manual. There is so much more the MMX can do we have not touched on. ...
- Page 14 Copyright © 2020 PreppComm. All rights reserved. identify different styles of operation? How to establish your own style? How to use microprogramming to support your own style? This is the more time-consuming part, but especially if you are a prepper, do it NOW, and do it FREQUENTLY so if the S does HTF, you will be comfortable operating your communications safety net! ...
- Page 15 Before you begin setup, you are going to need some cables and adaptors. Or better yet, you have purchased the PreppComm’s External Transceiver Cable Assembly accessory, which makes the interconnection between your MMX and everything else easy and neat. You will also need to determine if the "KEY IN" connector on your transceiver is a ¼"...
- Page 16 Copyright © 2020 PreppComm. All rights reserved. Page 16...
- Page 17 9. Connect another stereo Cable #3 to the other side of Cable #2 Y, and plug it into the AUDIO IN jack of the MMX. 10. Check to see if there is activity on the TONE LED of the MMX when you turn in noise or stations on your transceiver (you should also hear them on the powered speaker).
- Page 18 (unpowered). If you are interested in hearing BOTH the audio from your transceiver AND the TONE OUT from the MMX, this is for you. Note that the MMX generates a tone output for either computer generated code or code from your manual key.
- Page 19 Naturally, we would have loved to go even higher, but we had mercy on your ears. What does this mean? It means a typical CW filter will not work - will cause the MMX to not work. Rather, set your rig to SSB. If you check in the PreppComm Community, some have found adding a 1300 Hz filter helps, or their transceiver has the ability to...
- Page 20 5. You will use your normal routine to transmit. Note it is a good idea to have a dummy load on the antenna connector of the MMX so it will not pick up your signal. If it still picks up your signal, you have a serious issue with RF in your shack, and you need to attend to that.
- Page 21 find what you need to know. Also, make use of the PreppComm Community. There are a lot of Q&A’s already there, and plenty of other MMX users out there who have asked the same question you have, or have answered someone’s question. It is also a place to get answers from the factory.
Need help?
Do you have a question about the MMX and is the answer not in the manual?
Questions and answers