![]() Here's a screenshot of the MultiMode window. Become proficient with that, before trying to decode some actual QSOs. One again, I strongly recommend listening the W1AW transmissions while you are learning how to use MultiMode in CW mode. The W1AW operating schedule is here, if you want to tune in live: Input jack (remember to watch the audio levels, to not damage anything!). If you don't have SoundFlower, you can use an audio patch cable to route the Mac's headphone jack to your sound I find SoundFlower is a very handy tool for doing this. If you want to use one of the recordings, you will need to get the audio into your You can either tune in a live transmission, or go to their archive of recordings, and play one of these The best source of CW audio is from a W1AW CW broadcast. While you can tune in an actual CW QSO on your radio to learn how to use MultiMode in CW mode, you may find it is difficult to adjust settings as the stations change frequency, speed, etc, when you areįirst getting used to using the software. We'll use CW mode as our first example, since that is a common mode to decode. You can select the mode you wish to use from the Mode menu. When MultiMode starts up, it defaults to CW / Morse Code mode. You just need to plug it in, run MultiMode, then select the radio as the sound input and output source from the popup menus in MultiMode. If your radio does this, then that is by far the easiest way to route sound back andįorth. Some newer radios have a USB port on them, and when plugged into your computer, they appear as a sound device. Headphone jack on your radio to get the sound, and it no longer play's through the radio's speaker. That is a handy way to check that things are working, and can sometimes be useful if for example you use the The PLAYTHRU button can be used to play the input sound through your Mac's speakers. Get that correct before proceeding further. If you don't see that, you shouldĭouble check your connections, the input level, and the sound input source popup menu. We want to see a green bar there, bouncing up and down, letting us know sound from the radio is getting to the Mac. To the left of that is the volume indicator. ![]() The iMic doesn't allow that, so it is disabled and grayed out. The vertical slider on the right side sets the input gain level, with many sound devices you can adjust this to vary the input level. We'll worry about changing that later, when dealing with sound output to your radio. I have it set to use the iMac for sound input,Īnd Built-In Output for the output, which mean's the Mac's speaker. The two popup menus in the lower left corner of that image are used to set the sound input source, as well as the sound output source. In the upper left corner of the window, you'll see various controls that deal with sound input: Unfortunately, Some Macs, including many recent models, don't have a sound input jack! Not to worry, you can use a USB sound device, like the Griffin iMic, or similar. ![]() ![]() You don't want to damage your Mac's sound input. In all cases, double check the output level from your radio first, to make sure the levels are not too high. You can also use the headphone jack from your In many cases, this can be done as easily as connecting a 1/8" audio cable from your radio's line level output to the sound input jack on your Mac. In order to receive (decode) the various digital modes, you need to feed sound from your radio into your Mac. If you haven't already, you should download a copy. It runs on macOS versions from 10.6.8 right through Sierra 10.12. MultiMode Cocoa is an app for macOS (Mac OS X) that lets you receive and send various amateur radio modes, such as CW (morse code), PSK31, SSTV, RTTY, FAX, and more. The Basics - What You Need - Connecting Your Mac To Your Radio ![]()
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