Receivers

Why should I buy a Novak receiver?
: Our receivers are specifically designed to work with ESCs. They operate at a lower input voltage (important during heavy acceleration), have excellent adjacent channel rejection and reject a great amount of the noise that is present in electric cars.
What is a DSC?: DSC is the abbreviation for Direct Servo Control. A DSC harness is connected between the transmitter and receiver and can be used to adjust system components such as servos, linkages and the ESC without transmitting a radio signal.
What are the advantages of using an FM Receiver?
: Frequency modulation (FM) is more immune to noise than amplitude modulation (AM). Most noise generated by the model's electric motor is AM noise and does not affect FM receivers.
What is NARROW BAND?: If a receiver is operating on channel 68 (75.550 MHz), information sent to this receiver by the transmitter takes up 3 KHz (0.003 MHz) on either side of the frequency. This means all information required to control the R/C model is between 75.547 and 75.553 MHz. A narrow band receiver would only allow the selected channel plus 3 KHz on either side of the center frequency to pass, which means that other out-of-band information is not allowed to pass. A non-narrow band receiver would allow many out-of-band signals to pass through, causing interference.
What is 3IM?
: 3IM is the abbreviation for Third-Order Intermodulation Point. This number describes the non-linearities of the receiver's mixer stage. This means that if a transmitter is operating on a given channel, transmitters that are 20 KHz and 40 KHz (0.020 and 0.040 MHz) away will cause 3IM-related interference. For example, if you are using channel 70 (75.590 MHz) and two other drivers are on channel 69 (75.570 MHz) and channel 68 (75.550 MHz), the output of channel's 69 and 68 will mix inside the receiver's mixer and generate interference on channel 70. Receivers that have a high 3IM (such as Novak receivers) can withstand a high level of 3IM-related interference.
What is the range of a Novak receiver?
: All Novak receivers have a ground range over 300 feet when used with a properly operating transmitter.
What should I do with the excess antenna wire?
: For optimum range, let the excess wire hang out the top of the antenna tube. The wire can be coiled around the antenna tube, but doing this will cut down the range of the receiver.
What is the antenna wire length for Novak receivers?
: 18 inches. Our XXtra and XXL AM and FM receivers are designed for surface models only, which do not need a longer antenna.
Can I use an XXL receiver in an airplane?
: Yes. They can be used in small, hand-launch gliders on 27 MHz.
What is RF?
: RF is the abbreviation for Radio Frequency.
What is ADJACENT CHANNEL REJECTION?
: Adjacent Channel Rejection is the interference caused by a transmitter operating on an adjacent channel. For example if you are on channel 70, then channel 69 and 71 would be the adjacent channels.
What is ADJACENT CHANNEL SELECTIVITY?
: Adjacent Channel Selectivity is the ability of a receiver to reject signals on channels adjacent to that of the desired channel.
What is RADIO FREQUENCY INTERFERENCE? (RFI)
: Radio Frequency Interference is interference from outside the system or systems, as contrasted to Electromagnetic Interference (EMI), which is generated inside systems.
What is ELECTROMAGNETIC INTERFERENCE? (EMI)
: Electromagnetic Interference is the interference, generally at radio frequencies, that is generated within the system (in this case the car), as contrasted to RF interference coming from sources outside the system.