It is quite intriguing that most virus capsids are either icosahedral or helical in structure. Presumably, these two structures were the ideal structures to protect a viral genome and accessory proteins within a virus particle.elical Capsid. Helical capsids are usually formed from one protein that interlocks to form a helix-like structure around the viral genome. They are usually more common among viruses that infect plants, though influenza, measles, mumps and rabies viruses all have helical capsid structures.
1 RF modulator converts AV to RF channel.  Consumes 9 VDC input voltage and offers Antenna interfaces/ports for reliable transmission.
These 10 animal facts will amaze you. Modem, short for modulator-demodulator is an electronic device that converts a computerâs digital signals into specific frequencies to travel over telephone or cable television lines.At the destination, the receiving modem demodulates the frequencies back into digital data.n ADSL modem is faster than a dial-up modem and doesn't tie up a phone line. Acoustic couplers -- which send and receive computer data through telephone lines -- preceded modern modem technology.