There are a few choices in the app's menu: You can pinch and zoom and scroll around the image as it is being received. When the start tone is detected, the app will automatically start decoding it. You can now select Stop from the app's menu, and wait for a new fax to be transmitted. One the fax is no longer slanting to one side or the other, the adjustment is done The timing adjustment value will be automatically saved and used each time you run the app, so typically you only need to go through this procedure once.
(previously received picture information will not be changed) Continue to make adjustments as necessary. Now wait several seconds, and see if new picture information for the fax is no longer slanted. If the received image is slanting to the left, the timing adjustment must be decreased. If the received image is slanting to the right, the timing adjustment must be increased. That's OK, we'll use the edge (a dark bar going down the screen) to adjust the slant timing. The image will not be correctly aligned, that is, the edge will be somewhere in the middle. Then bring up the menu for HF Weather Fax, and select Start, to force the app to begin receiving the fax. This can be corrected by the timing adjustment value, which is located at the top of the screen between the - and + buttons. When first using the app, it is normal for the received image to be slightly slanted, due to slight audio timing variations between devices. The app will then go back into Idle mode, waiting for the next Start tone. When the end tone (another loud buzzing) is detected, receiving will stop, and the fax will be automatically saved, if Auto Save was selected in the app Settings. Then it will be go into Receiving mode, decoding and displaying the fax image line by line as it is sent. When the start tone is detected, the app will next go into phasing mode, where it will lock on to the fax image, so it is correctly centered on the screen. When the app is launched, it will be in Idle mode, waiting for the start tone (which sounds like a loud buzzing) to be transmitted, indicating that a fax image is starting. Fine tune your radio for proper reception of black and white picture elements. Tune your radio in USB mode to the weather fax frequency, making note of the fact that you usually need to tune about 1.9 kHz lower in frequency than the listed carrier frequency in a schedule. You can use the volume indicator at the top of the screen to verify that audio is getting into your device, and that the volume level is appropriate. Use the microphone input jack of your device, by obtaining an appropriate cable and connecting the radio's line level output to the microphone input. I find that with good quality headphones, this can work extremely well.ģ. Plug headphones into the radio, and set one earphone near the mic. While easy to do, this is not ideal, as background noise can interfere with the audio, causing garbled decodes.Ģ. Set the device near the radio's speaker to pick up the audio. You can do this via one of several ways:ġ. To use this app, you need to feed the audio output from a your radio into the device. Received fax images can be manually or automatically saved, and viewed later. Just set it next to the radio's speaker or headphones, tune in a weather fax frequency, and watch the images come in. HF Weather Fax lets you receive marine weather radiofascimile transmissions on your Android device, using the audio from your HF marine radio. Note: for devices that don't have dedicated home/menu buttons on their device, holding down the 'return/exit' button is the alternate way to access the application menu.īuy your copy right now, and start decoding and displaying weather fax transmissions in minutes. HF Weather Fax is perfect for mariners who want to be able to view the latest weather reports and forecasts. (Also available for the iPhone/iPad/iPod Touch)ĭo you want to get your weather charts without using an internet connection or a dedicated computer?
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HF Weather Fax Marine Radio Fascimile Decoder App For Android
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