FT-991A Set-up and Demo of Winlink VARA HF
The previous video on Winlink received many comments and suggestions – most wanted to see VARA HF instead of ARDOP. This is that video… Links: VARA HF Download Site: https://rosmodem.wordpress.com/ Previous video – with rig settings: • Using Winlink with your FT-991A - set-up a... FT-991A Menu Settings 031 CAT RATE: 9600 (You can use any value – note the CAT RATE) 032 CAT TOT: 100ms 033 CAT RTS: Enable 062 Data Mode: OTHERS 064 OTHER DISP (SSB): 1500 Hz 065 OTHER SHIFT (SSB):1500 Hz 066 DATA LCUT FREQ: OFF 068 DATA HCUT FREQ: OFF 070 DATA IN SELECT: REAR 071 DATA PTT SELECT: RTS 072 DATA PORT SELECT: USB MODE: DATA -USB (NOT USB) F (-LIST) WIDTH: 3000 METER: ALC RF PWR: 8-50W start low and work up. WIDTH: NAR/WIDE: W 3000 AGC: Auto NB-NOTCH-CONT-DNR-DNF: Off DT Gain: 6 ** IMPORTANT ** The DT Gain defaults to 50! This will overdrive the rigs modulator which will cause unwanted audio harmonics. Not good. Turn the DT Gain setting down to about 4, and start working your way back up, watching for ALC on the meter as well as the power out that you want. As you move the DT Gain setting back up (higher), you will see your power level increase as well as ALC levels. Find the happy medium of NO ALC showing on the meter. Excessive ALC indication is a sign that the audio drive is too high, and distortion is most likely happening. Thanks for watching. Please remember to Like, Share, Comment, and Subscribe I’m not Batman - nor am I Spongebob 73 de Tom, ND3N
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