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Mastering Pactor Modem Setup for HF Radio Communication

Discover the essentials of setting up Pactor modems for efficient HF radio communication. Learn about adjusting audio levels, software configurations, and accessing propagation tools. Access key resources for solar and space weather updates. Equip yourself with the necessary knowledge to optimize your radio equipment and find the best stations for reliable communication.

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Mastering Pactor Modem Setup for HF Radio Communication

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  1. HF PACTOR • Equipment HF Radio and TNC • Center frequency vs display frequency • ALC/NB/Filters and there importance • Updating the propagations tool and information • Finding the best stations • Pactor frequencies and bands • Sunspot #’s Solar Flux plus A and K Indices

  2. Equipment Setup Propagation & Solar

  3. EQUIPMENT • HF Radio - Radio that has level setting for Audio input and Audio Output • Pactor Modem - SCS PTC series modem that will do P1, P2 & P3 or a SCS Dragon that will do up to P4

  4. Equipment required Kenwood TS-480Sat/HX SCS PTC Series or Dragon Sat -100 watts with Auto tuner HX – 200 wats without and Auto tuner

  5. 34 multi function buttons and 4 knobs TS-480SAT - Head controls ALC Indication Menu information Up & Down Meter PWR/ALC/SWR/COMP (Set to ALC) Menu Scroll knob

  6. Kenwood TS-480- Rear PanelConnections Remove cover SCS PTC Audio Connections Serial port – CAT control

  7. Menu – Audio in/out Change as required. Typical Menu 46 = 2 Menu 47 = 2

  8. Setting up Pactor audio You will require the following software with the comport and baurd rate setup and tested. Airmail & Winlink Express

  9. Setup - Airmail SCS Firmware – Version 4.0

  10. Untick Track Click on Xmit Transmitter will turn on Adjust for No ALC on transceiver Best to adjust until you can see some ALC then back off till there is none

  11. Click on Xmit Transmitter will turn on Adjust for No ALC on transceiver

  12. Make note of the FSK & PSK numbers Tick the Track box and click apply NOTE: In Winlink the PSK & FSK are reversed

  13. Setup - Winlink Express

  14. NOTE: In Airmail the PSK & FSK are reversed Airmail will get you very close and you can fine tune in Winlink by changing the number then click on update and retest. Repeat as necessary till you achieve No ALC

  15. Solar and Propagation • VARPA - www.varpa.bc.ca • Space Weather - www.spaceweather.com • NOAA Space - www.swpc.noaa.gov/ • WM7D – wm7d.net

  16. Solar – Terrestrial Data

  17. VOACAP Voice Of America Coverage Analysis Program • It is a free professional high-frequency (HF) propagation prediction software from NTIA/ITS, originally developed for Voice of America (VOA). • Winlink use’s it but it is out of date! (2012) • Get the new version (2016) from Greg Hand’s site www.greg-hand.com/versions/itshfbc_161207.exe

  18. Questions? • Power points will be on the VARPA website

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