Is it possible to receive both linear and circular polarity with the same lnb?
546066
Yes check out this page http://sadoun.com/Sat/Products/Invacom/Invacom-QPH-031-Quad-lnbf.htm\n\nThe lnb has 4 outputs. 2 linear and 2 Circular. Not sure of the size of dish that you will need though.
167709
No it can come out very different, depending on the materials involved.\n\nThe light can come out a different color. \nThe light can come out a different amplitude. \nThe light can come out in a different direction. \nThe light can come out with a different polarization.\nThe light can come with a phase lag.
1016464
Polarization of a wave is simply the direction in which it occillates, meaning, the direction its amplitude travels in the plane which is perpendicular to the direction of wave propagation.  The two most common man-made polarizations are linear and circular.\n\nThe importance of polarization is that a receiver can only read a wave when the phase of the wave intersects the passive phase of the receiver.  If the polarization of a transmitter and receiver are not the same then "cross-polariztion" results.  This can result in up to 75% signal loss for linearly polarized sigjnals, or even greater (90-95%) signal loss for circularly polarized signals.
168211
Cheap receivers are possible.  Take AM radio, for example.  It is very wasteful of bandwidth compared to a digital transmission.  However, you can receive AM with a simple envelope detector.  You can receive AM with a "crystal radio"  constructed with only a diode, a coil, a capacitor, and a pair of headphones.
794082
assuming "perfect" polarization:\n\n50% through the first.   Then use trig to calculate the E field amplitude reduction caused by the 42deg  polariztion.
523744
Yes, it should be possible by putting the tho different feeds through a mixer - you should be able to get a mixer from a music shop, or find mixer software on the internet.
101135
Single sideband transmission can afford, "efficient spectrum use, bettter signal-to-noise ratios at low signal levels and better transmitter efficiency" per "Conclusion" on P. 7 of link.  Good luck.
42983
It doesn't matter if you are in the East or West. If you can, try to get your bed's head & foot pointing from North to South. This way the lines of your personal magnetic field (the aura) run parralel with that of the Earth.Using this method, there won't be much 'cross-grain' interference. I know it works for me!!
1051141
Atmospheric interference.
1022481
In short yes.  I would not run them interchangeably.  They make frequency converters that you can place in-between those segments.  I saw one by Winncom a while back that was compatible with both ver. of coax
1149384
http://www.argospress.com/Resources/CommunicationsSystems/yringtopolo.htm\nPlease Click the above link to know in detail.
734042
Try to watch here:\nhttp://www.radio-materiel.ch/new_design/radiomateriel/download/tps/tps.pdf
1128622
Henry Abraham invented the Astable multivibrator1918. Thats the earliest i can find. Its a monostable multivibrator with capacitor couplings at both ends rather than one. It alows the caircuit to be unstable at both states so it can oscillate from one to the other without stopping. \n\nIts an easier way for implemation of two stae systems
203056
I'd try digi-key first. The ref. page is for slide pots; I assume that's what you mean by linear (since it isn't linear taper). That page also refers to Bourns, CTS and Panasonic; there may be more info there.
224327
You can but u have to know some electronics for it...you can add abeat freq oscillator to receive ssb signals or attach a signal preamp at the antenna input to boost the reception and receive weaker stations or modify the mixer sections to change the receiving freq bandwidth.......possibilities are countless.
285555
Satellites use non-linear amplifiers to relay signals back to earth.  Using AM for any type of transmission through the satellite would heavily distort the AM signal and make the signal have very poor quality.\n\nVideo, or more accurately TV signals used to be exclusively distributed via satellite using FM because of its constant envelope characteristic made them largely impervious to the amplitude distortions caused by the non-linear amplification of the satellite.  \n\nHowever, increasingly more video (TV) transmissions are using digital transmission schemes.  Here the baseband TV signal is digitized into some bit format and the bits are used to phase-modulate (PM) the carrier. When PM is digitally modulated it is known as Phase Shift Keying or PSK. This also has a constant envelope characteristic like FM and PM making it suitable for the non-linear amplification of the satellite.\n\nSatellite amplifiers are becoming more and more powerful as the technology improves.  They also are becoming more linearized.  This is allowing digital transmissions to utilize a combination PSK and AM technique known as APSK or sometimes, QAM (Quadrature Amplitude Modulation).  Using these techniques requires the satellite amplifiers to be used at much less than their full power, so they are linear and do not cause large amplitude distortions.  This is done because these newer techniques allow more bits/sec to be transmitted on the satellite channel.  This allows higher quality video (HDTV for example) or just more video signals per satellite channel.
194790
See the link for a tutorial on phase shifters.  If you know how to design one you will know what they do, right?