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48 lines
2.2 KiB
Plaintext
48 lines
2.2 KiB
Plaintext
V1.6.0 is the first _WSJT-X_ version to include features specifically
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designed for use on VHF and higher bands. These features include JT4,
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a mode particularly useful for EME on the microwave bands; Echo mode,
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for detecting and measuring your own lunar echoes; and automatic
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Doppler tracking for the EME path. Note that sub-modes JT65B and
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JT65C are present in v1.6.0, but are not yet fully implemented for EME
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purposes.
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- Check the box labeled _Enable VHF/UHF/Microwave features_ on the
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*Settings | General* tab to activate the VHF-and-up features. You
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will probably want to check also the boxes _Decode at t = 52 s_ and
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_Allow Tx frequency changes while transmitting_ to allow for the EME
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path delay and permit Doppler tracking while transmitting. In
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appropriate modes the main window will reconfigure itself to include
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controls supporting the additional features.
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image::images/VHF_controls.png[align="center",alt="VHF Controls"]
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IMPORTANT: Not all transceivers permit computer adjustments
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of Tx frequency while transmitting. Among those that do are the
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IC735, IC756 Pro II, IC910-H, FT-847, TS-2000 (with Rev 9 firmware
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upgrade), Flex 1500 and 5000, HPSDR, Anan-10, Anan-100, and KX3.
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- On the *View* menu, select *Astronomical data* to display a window
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with important information for tracking the Moon and performing
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automatic Doppler control.
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image::images/Astronomical_data.png[align="center",alt="Astronomical data"]
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- Note that two types of Doppler control are provided. Use _Full
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Doppler to DX Grid_ if you know your QSO partner's locator and he/she
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is not using Doppler control. Use _Constant frequency on Moon_ to
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correct only for your own (one-way) Doppler shift. For any other
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station that does the same thing, you will then have full Doppler
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correction.
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=== EME with JT4
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- Select *JT4* from the *Mode* menu.
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- Select the desired submode, which determines the tone spacing.
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Higher spacings are used on the higher microwave bands, to allow for
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larger Doppler spreads. For example, JT4F is generally used for EME on
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the 10 GHz band.
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- If you are using a transverter, set the appropriate offset on the
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*Settings | Frequencies* tab.
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