The book you requested is found at the Mathematics section of this website.
NEETS Module 14 Microelectronics
Link: http://j9l7vk.alterupload.com/
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NEETS Module 23 Magnetic Recording
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NEETS Module 24 Fiber Optics
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NEETS Module 20 Master Glossary
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NEETS Module 17 Radio Frequency Communications Principles
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NEETS Module 19 Technicians Handbook
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NEETS Module 18 Radar Principles
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NEETS Module 11 Microwave Principles
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NEETS Module 12 Modulation Principles
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NEETS Module 22 Digital Computers
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NEETS Module 21 Test Methods and Practices
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NEETS Module 16 Test Equipment
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NEETS Module 15 Principles of Synchros Servos and Gyros
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NEETS Module 10 Wave Propagation Transmission Lines and Antennas
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NEETS Module 13 Number Systems and Logic Circuits
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NEETS Module 9 Wave-Generation and Wave-Shapping Circuits
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NEETS Module 8 Amplifiers
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NEETS Module 7 Solid-State Devices and Power Supplies
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NEETS Module 6 Electronic Emission Tubes and Power Supplies
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NEETS Module 5 Generators and Motors
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NEETS Module 4 Conductors and Wiring Schematic Reading
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NEETS Module 3 Circuit Protection and Control Measurement
Link: http://b48jt5.megadl.fr/en/
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NEETS Module 2 AC and Transformers
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NEETS Module 1 Matter Energy and DC
NEETS Module 1 Matter Energy and DC
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Quick Guide Table: Sound Pressure Levels
Sound Pressure Levels
| Source | SPL (dB) |
| faintest audible sound | 0 |
| whisper | 20 |
| Quiet residence | 30 |
| Soft stereo in residence | 40 |
| Speech range | 50-70 |
| cafeteria | 90 |
| Pneumatic jack hammer | 90 |
| Loud crowd noise | 100 |
| Accelerating motorcycle | 100 |
| Rock concert | 120 |
| Jet Engine (75 feet away) | 140 |
Quick Guide Table: Optimum volume per person for various types of hall
Optimum volume per person for various types of hall
| Type of Hall | Optimum Volume /person (m3) |
| concert halls | 7.1 |
| Italian-type opera houses | 4.2 - 5.2 |
| churches | 7.1 - 9.9 |
| cinemas | 3.1 |
| Rooms for speech | 2.8 |
Quick Guide Table: 10 octaves of human hearing
10 Octaves of human hearing
| 1st octave | 20 - 40 Hz | Lower Bass |
| 2nd octave | 40 - 80 Hz | |
| 3rd octave | 80 - 160 Hz | Upper Base |
| 4th octave | 160 - 320 Hz | |
| 5th octave | 320 - 640 Hz | Lower Midrange |
| 6th octave | 640 - 1280 Hz | |
| 7th octave | 1280 - 2560 Hz | |
| 8th octave | 2560 - 5120 Hz | Upper midrange |
| 9th octave | 5120 - 10240 Hz | Treble |
| 10th octave | 10240 - 20480 Hz |
Quick Guide Table: Loudness Level
Loudness level
| 0 - 15 dB | very faint |
| 15 - 30 dB | faint |
| 30 - 60 dB | moderate |
| 60 - 80 dB | loud |
| 80 - 130 dB | very loud |
| 130 dB | deafening |
Quick Guide Table: Microwave Frequency Bands
Microwave frequency bands
| Band | Frequency in GHz |
| L | 1-2 |
| S | 2-4 |
| C | 4-8 |
| X | 8-12 |
| Ku | 12-18 |
| K | 18-27 |
| Ka | 27-40 |
| Millimeter | 40-300 |
| Sub-millimeter | >300 |
Quick Guide Table: Satellite Classification according to Size
Electronics Systems Technologies (EST)
Quick Guide Tables
Satellites classifications according to size
Quick Guide Tables
Satellites classifications according to size
| Size | Mass | Cost |
| Large Satellite | > 1,000 kg | > $ 100 M |
| Small Satellite | 500 - 1,000 kg | $ 50 - 100 M |
| Mini Satellite | 100 - 500 kg | $ 5 - 20 M |
| Micro Satellite | 10 - 100 kg | $ 2 - 3 M |
| Nano Satellite | < 10 kg | < $ 1 M |
Quick Guide Table: Satellites
Electronics Systems Technologies (EST)
Quick Guide Table
Satellites
| | Low Earth Orbit (LEO) | Medium Earth Orbit (MEO) | Geostationary / Geosynchronous (GEO) |
| Orbit Height | 100 - 300 mi | 6,000 - 12,000 mi | 22,300 mi |
| Orbital velocity | 17,500 mph | 9580 mph | 6879 mph |
| Orbital time (period) | 1.5 hours | 5-12 mph | 24 hours |
| Satellite Availability | 15 min per orbit | 2 - 4 hours per orbit | 24 hours per orbit |
| Operating Frequency | 1.0 GHz to 2.5 GHz | 1.2 GHz - 1.66 GHz | 2 GHz - 18 GHz |
| | Motorola's Iridium Satellite system (66-satellite constellation for mobile phone system) | GPS, NAVSTAR | |
Tables / Quick Guide: Radio Frequency Spectrum notes
Electronics Systems Technology
Tables
The Radio Frequency Spectrum
| Band name | ABBR | ITU band | frequency | wavelength | propagation mode |
| | | | < 3 Hz | > 100,000 km | - |
| Extremely low frequency | ELF | 1 | 3–30 Hz | 100,000 km – 10,000 km | - |
| Super low frequency | SLF | 2 | 30–300 Hz | 10,000 km – 1000 km | - |
| Ultra low frequency | ULF | 3 | 300–3000 Hz | 1000 km – 100 km | - |
| Very low frequency | VLF | 4 | 3–30 kHz | 100 km – 10 km | Ground Wave |
| Low frequency | LF | 5 | 30–300 kHz | 10 km – 1 km | Ground Wave |
| Medium frequency | MF | 6 | 300–3000 kHz | 1 km – 100 m | Ground Wave |
| High frequency | HF | 7 | 3–30 MHz | 100 m – 10 m | Sky Wave |
| Very high frequency | VHF | 8 | 30–300 MHz | 10 m – 1 m | Space Wave |
| Ultra high frequency | UHF | 9 | 300–3000 MHz | 1 m – 100 mm | Space Wave |
| Super high frequency | SHF | 10 | 3–30 GHz | 100 mm – 10 mm | Space Wave |
| Extremely high frequency | EHF | 11 | 30–300 GHz | 10 mm – 1 mm | Space Wave |
| Tremendously high frequency | THF | | 300 GHz 3000GHZ | < 1 mm | |
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