FHSS means that the (digitized) voice/text message is broken down into small packets that are transmitted on different frequencies, to minimize the chance of either interference from, or eavesdropping by, other 2.4GHz users. The radios "hop" from one frequency to another following a "pseudo-random hopping sequence." The DTR Series radios "hop" between 50 frequencies, staying on each frequency for 90msecs to transmit/receive voice/text message data packets.

Yes, Digital Spread Spectrum converts the analog signal into 1and 0 before transmitting and then uses multiple frequencies to send the signal and Frequency Hopping randomly changes frequencies several times per second, which helps to eliminate cross-talk and accidental eavesdropping when multiple handsets are in use, where as digital only converts the analog signal into 1and 0. As a result, you will receive better clarity, security, and effective range with DSSFH. See similar questions...

Autism is a spectrum disorder, which means it manifests itself in many different forms. A diagnosis can range from mild to severe, and though children who have it (i.e. are on the spectrum) are likely to exhibit similar traits, they're also as individual as the colors of a rainbow, each one managing a grab bag of symptoms. While one child may rarely speak and have difficulty learning how to read and write, another can be so high-functioning he's able to attend classes in a mainstream school. See similar questions...

A sunscreen that is classified as 'broad-spectrum' protects the skin against both UVA and UVB radiation from the sun. To ensure that you are using a broad-spectrum product, look for the Canadian Dermatology Association logo. See similar questions...

The product is a network device and will work with anything that connects to an Ethernet network. USB drivers will be available for Windows and Linux in future updates. See similar questions...

Yes, for the nRF9E5 and the nRF24E1 there is a example code available here:http://www.nordicsemi.no/files/Product/development_tools/hop-nrf9e5_v1_1.zipThis code is described in the white paper called "Simple frequency hopping with the nRF9E5 and nRF24E1". See similar questions...

Spread Spectrum technology is a wideband radio frequency technique developed by the military for use in reliable, secure, mission-critical communications systems. And Spread-Spectrum is designed to trade off bandwidth efficiency for reliability, integrity, and security. See similar questions...

Spread Spectrum Clocking is a way to lower electromagnetic interference or EMI. This is important for storage solutions that are required to pass FCC and other agency certifications. Today, some Serial ATA disk drives implement SSC, some allow you to turn this feature on/off, and some do not implement SSC; it is anticipated that all will implement this feature in the near future. See similar questions...

This refers to the actual rate of frequency at which a person’s electromagnetic field is vibrating. Just as radio waves have frequencies, each person emits a frequency that is unique to them and changes continually as the rate of vibration is intricately connected to our thoughts and emotions. Aroma, emotions and memory are inextricably linked and often a smell will take us back to the memory of an earlier event in our life and we can even feel the emotion that we had at that time. See similar questions...

PWM stands for Pulse Width Modulation. The speed controller uses PWM to control the power going to the motor. The controller breaks the current going to the motor into separate pulses that occur about 13,000 times per second. The percentage of the pulse that is on power compared to the part of the pulse that is off power determines how much power the motor sees. An oversimplified example is that if 50% of the pulse is on and 50% is off, the motor sees 50% power. See similar questions...

Spectrum's DSM system is optimized to give the fastest possible response time of 5.6ms. Typical FM systems offer a response time of 12 to 18ms. No. The DSM system operates in the 2.4Ghz ISM band and is well above the range of any equipment including lap-counting systems presently in use. See similar questions...

A pseudoexacerbation is a temporary aggravation of MS symptoms - including muscle weakness, tingling, spasms and vision difficulties - that have previously appeared in the patient. Typically, a pseudoexacerbation lasts 24 hours or less. In the majority of MS patients, a pseudoexacerbation is triggered by a rise in body temperature, which, in turn, may be caused by fever (due to infection), the environment (e.g., sun exposure, a hot bath), or exercise (e.g., mowing the lawn). See similar questions...

Right now, the universities have very different benefit systems. The intention is to equalize the benefits over time, probably three years. See similar questions...

Low frequencies, in general, seem to be more effective at getting the electric current through the skin. It's the current that kills parasites, so more of it will kill more of them and quicker. All of our zapper models now use this frequency. cycles per second is a 'feel-good' frequency as well, which encourages us to wear our zappers more. See similar questions...

The answer to this is not as straightforward as it is for direct sequence, because the data to be hopped can be modulated into the signal in any one of numerous ways. But if we ignore the data and focus on the PN sequence, the question is much easier to answer. Our generators include a parallel port that outputs all taps of the sequence-generating shift register. See similar questions...

Infections causing gastroenteritis can be spread by contaminated food or water or through an infected food handler. Individuals who are symptomatic with gastroenteritis can spread illness to others by touching handrails, elevator buttons, and shared utensils, as well as through direct intimate contact with others while they are ill. See similar questions...