[R-390] OT: Antenna question

[Scott, Barry (Clyde B)]

Uhh, a simple "yes" or "now" would have been okay :)

BTW, thanks for the serious reply to the silly question.  That's some pretty interesting "ciphering".

Merry Christmas and Happy Holidays to all.

Barry - N4BUQ

> 
> The Polarization of Ionospheric Waves is a Function of 
> Magnetic Latitude. 
> 
> A wave entering the ionosphere typically separates into two 
> waves because 
> of the interaction of the free electrons in the ionosphere 
> and the earth's 
> magnetic field.  The two waves are called the ordinary (o-) and the 
> extraordinary (x-) waves. When the direction of propagation 
> is along or 
> parallel to the earth's magnetic field, the two waves are circularly 
> polarized, in opposite senses. When the direction of propagation is 
> transverse to the earth's magnetic field, the electric field 
> of the o- 
> wave is polarized parallel to the earth's magnetic field and 
> the electric 
> field of the x- wave is polarized perpendicular to the 
> earth's magnetic 
> field. In the splitting of the two waves the MOF of the x- wave is 
> typically higher than the MOF of the o- wave. In general the 
> o- wave is 
> the dominate wave having less attenuation through the 
> ionosphere compared 
> to the x- wave. 
> 
> In the Northern Magnetic Latitude the o- wave travels up from the 
> transmitter in a right hand elliptical polarization (REP) 
> mode and arrives 
> down to the receiver in a left hand elliptical polarization 
> (LEP) mode and 
> is typically the strongest wave. The x- wave  travels up from the 
> transmitter in the LEP mode and arrives down to the receiver 
> in the REP 
> mode.
> 
> At the Magnetic Equator the o- wave is linearly polarized along the 
> magnetic NS for a wave travelling up or down (transmit or 
> receive). The 
> linear polarization for the x- wave is along the magnetic EW 
> for a wave 
> travelling up or down (transmit or receive).
> 
> In the Southern Magnetic Latitude the o- wave travels up from the 
> transmitter in the LEP mode and arrives down to the receiver 
> in the REP 
> mode and again is typically the strongest wave. The x- wave  
> travels up 
> from the transmitter in the REP mode and arrives down to the 
> receiver in 
> the LEP mode.
> 
> RICH  @B> }