Technical manuals for tape recorders can state the SNR in  what three different ways?

1 Answer

Answer :

a. Root-mean-square (RMS) signal-to-RMS noise.   b. Peak-to-peak signal-to-RMS noise.  
 c. Peak signal-to-RMS noise.

Related questions

Description : You plan to measure your tape recorder’s SNR. What test equipment will you need?

Last Answer : A VTVM and a signal generator.

Description : Magnetic tape recorders can have up to three different heads installed. What are the three functions performed by a recorder's heads?

Last Answer : Record, reproduce, and erase.

Description : Digital magnetic tape recorders used to store and retrieve digital data fall into what three categories?

Last Answer : a. Computer-compatible digital tape recorders. b. Telemetry digital tape recorders. c. Instrumentation digital tape recorders

Description : What type of reeling system best controls a tape recorder's tape tension during starts and stops?

Last Answer : A tape buffering reeling system

Description : What are the four basic parts of a magnetic tape recorder's tape transport system?

Last Answer : a. Tape reeling system. b. Tape speed control system. c. Electronic subsystem. d. Basic enclosure.

Description : What causes flutter in a tape recorder’s output?

Last Answer : Non-uniform tape motion caused by variations in tape speed.

Description : What number harmonic is the primary harmonic distortion in magnetic tape recorders?

Last Answer : Third-order harmonic.

Description : List four factors that can degrade the frequency response of magnetic tape recorders.

Last Answer : a. A too-high or too-low bias signal level setting for the record head. b. An improper reproduce head gap. c. An improper tape transport speed. d. Poor tape-to-head contact.

Description : Two tape recorders have signal-to-noise ratios (SNRs) of 25-dB RMS and 35-dB RMS respectively. Which of the SNRs can record and reproduce the widest range of input signals and why?

Last Answer : 35-dB RMS because the highest SNR can always record and reproduce the widest range of input signals.

Description : The head driver circuit of a tape recorder’s FM record electronics (figure 5-4) performs what function?

Last Answer : It amplifies the frequency-modulated output from the record oscillator and sends it to the record head.

Description : The equalization and phase correction circuit in a tape recorder’s direct reproduce electronics (figure 5-2) performs what function?

Last Answer : It generates an equalization signal which corrects any frequency response problems in the input signal from the pre-amplifier circuit.

Description : The head driver circuit in a tape recorder’s direct record electronics component (figure 5-1) performs what function?

Last Answer : It takes the signal from the summing network, amplifies it, and sends it to the record head for recording.

Description : What two types of record and reproduce electronics are used by magnetic tape recorders?

Last Answer : . a. Direct record (AM). b. Frequency modulation (FM).

Description : What method for erasing magnetic tape is much more effective and reliable than using a recorder’s erase head?

Last Answer : Using a magnetic tape degausser

Description : What are two disadvantages of using a recorder’s erase head to erase data recorded on a magnetic tape?

Last Answer : Using an erase head is slow, and it may not completely erase the tape.

Description : After using a tape that was stored in an area where temperatures exceeded 130º F you notice pieces of oxide sticking to the recorder's tape-transport mechanism, to its magnetic heads, and onto the tape. What is the probable cause of these symptoms?

Last Answer : Oxide shedding. At temperatures above 130º F, oxide coating becomes soft and sheds.

Description : Which digital data encoding method helps overcome a tape recorder’s low-frequency response problems by recording two logic levels for each incoming data bit?

Last Answer : Bi-phase level encoding.

Description : Which performance parameter is the minimum amount of optical power required to achieve a specific bit-error rate (BER) in digital systems or a given signal-to-noise ratio (SNR) in analog systems?

Last Answer : Receiver sensitivity.

Description : Why does adding dc vice ac bias voltage to the input signal result in a poor signal-to-noise ratio (SNR)?

Last Answer : With dc bias, the SNR is poor because only a small portion of the magnetism curve is straight enough to use, thus the output signal is weak compared with the natural tape hiss.

Description :  Which single phase ac motor will you select for record players and tape recorders?  a) Hysteresis motor b) Shaded pole motor c) Reluctance motor d) Two value capacitor motor

Last Answer : Which single phase ac motor will you select for record players and tape recorders?  Hysteresis motor

Description : A recorder’s harmonic-distortion specification reads 2% third harmonic of a 100-kHz signal at 60 ips. What does this mean?

Last Answer : The recorder has 2% third-harmonic distortion of a 100-kHz signal at 60 ips.

Description : How often should you demagnetize a recorder's magnetic heads?

Last Answer : Every 8 to 25 hours depending on the manufacturer's recommendations.

Description : What type of equipment should you use to demagnetize your recorder's magnetic heads?

Last Answer : A hand-held degausser like the manual degaussers used for degaussing magnetic tape.

Description : How should you clean your recorder's magnetic heads?

Last Answer : With a cotton-tipped applicator soaked in either isopropyl alcohol or a head cleaner recommended by the recorder's manufacturer.

Description : A recorder's erase head is always placed in what sequence on the record/reproduce track?

Last Answer : . First, before the record and reproduce heads.

Description : Why are record heads always placed before reproduce heads on recorders?

Last Answer : Allow you to monitor the signals you're recording.

Description : What two specifications determine the maximum frequency that a recorder's record and reproduce heads will be able to transfer?

Last Answer : a. Size of the headgap. b. Speed of the magnetic tape.

Last Answer : The full form of SRN is Signal-to-noise ration.

Description : To avoid objectionable noise in a microwave TV link, the SNR should be about:

Last Answer : 25 or more

Description : SNR is: A. Signal to Noise Ratio B. Signal to Net Ratio C. Signal to Noise Rate D. None of above

Last Answer : A. Signal to Noise Ratio

Description : The threshold effect in demodulators is a) The rapid fall of output SNR when the input SNR falls below a particular value b) Exhibited by all the demodulators when the input SNR is low c) Exhibited by all AM suppressed carrier coherent demodulators d) Exhibited by correlation receivers

Last Answer : The threshold effect in demodulators is The rapid fall of output SNR when the input SNR falls below a particular value

Description : The capacity of a standard 4 KHz telephone channel with a 32 dB SNR is

Last Answer : The capacity of a standard 4 KHz telephone channel with a 32 dB SNR is 32953 bits/second

Description : I need manuals/help with this naval/military oscillicope.

Last Answer : Do you have a NIN for it or a stock number?

Description : Are there any manuals or podcasts that teach how to make an iPhone App?

Last Answer : Start here. Keep in mind that you need to know objective-C. If you don’t know what that is you have a long road ahead of you. And you need a Mac to develop for the iPhone. The developer tools only work on a Mac.

Description : Is there a good site to download video game manuals from?

Last Answer : what game what format

Description : Should I fill my car's tires to the max PSI on the tire or to my car manual's recommendations?

Last Answer : You should not fill your car’s tires to the maximum PSI listed on the tire†go with the numbers in your car manual. These numbers are also likely on a sticker in your driver-side door ... find things like the tire type, load index, speed rating, various measurements, and adorably enough, e

Description : Which are manuals of instruction in the form of brief rules?

Last Answer : Sutras

Description : Project closure involves releasing the final product to the customer, handing over the  project documentation, manuals, source code, and network layouts. (True/False)

Last Answer : Ans. True

Description : Internal costs include a) Developers salaries b) Managers and support personnel salaries c) The cost of overheads such as utilities, rent and senior  managers d) Materials (such as manuals) and services such as travel e) All of the above.

Last Answer : a) Developers salaries

Description : Software consists of (A) Set of instructions + operating procedures (B) Programs + documentation + operating procedures (C) Programs + hardware manuals (D) Set of programs

Last Answer : (B) Programs + documentation + operating procedures

Description : When you purchase copyrighted software, what actually are you paying for? a. The cost of the CDs, manuals, and development of the software b. The cost of the CDs, manuals, and a share of the cost of the software development c. A share of the cost of software development d. All of the above

Last Answer : d. All of the above

Description : Quality management system of a organization based on which pillars a) Test plans, Test conditions & decisions b) Quality processes, Guidelines and standards & Formats and templates c) Quality police, objectives and manuals 

Last Answer : Ans : b

Description : 1. Which is the oldest Development Financial Institution of India? 2. What is a powerful eye irritant present in smog? 3. Where is respiratory centre situated? 4. Which part of the Earth's ... famous for its deposits of nitrates? 20. Which queen enjoyed political power along with her husband?

Last Answer : Answer : 1. IFCI 2. Sulphur dioxide 3. Medulla oblongata 4. Tropical deserts 5. Sutras 6. Home Minister 7. Srinivas Ramanujan 8. Economics 9. Condensation 10. Tanjore 11. Less than unity 12. ... Cholas and Rashtrakutas 16. Export-Import Banks 17. Jimmy Carter 18. Acetylene 19. Atacama 20. Nur Jahan

Description : What are the three most commonly used tape reeling systems?

Last Answer : a. Take-up control. b. Two-motor reeling. c. Tape buffering.

Description : A tape pack is buckled and deformed as shown in figure 2- 4. What are three possible causes for this condition?

Last Answer : a. Reel has a distorted hub, b. tape wound over small particle deposited on hub, and c. tape wound on reel with tension increasing toward end of winding.

Description : If magnetic tape is stored in areas with temperature and humidity extremes, what are three types of tape damage that may occur?

Last Answer : Oxide shedding, layer-to-layer sticking, and tape deformation.

Description : Magnetic tape is made of what three basic materials?

Last Answer : a. Base material. b. Coating of magnetic oxide particles. c. Glue that bonds the particles to the base.

Description : What three formats are used for digital magnetic tape recording?

Last Answer : 1) Serial, (2) parallel, and (3) serial-parallel.

Description : In digital magnetic tape recording, the series of recorded digital pulses can represent what three types of data?

Last Answer : a. Data used by digital computers. b. Pulsed squarewave signals. c. Digitized analog waveforms.

Description : What's the difference between the 2 different Dazzle DVD recorders?

Last Answer : Do you have a link to these products?