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For Your Every Summer RSVP, with Code: SUMMER15
Description
TYT TH-9000D 1-50km High Power Wireless Outdoor Vehicle Two-Way Radio1. Frequency range: VHF: 136 174 MHz, 245 245. 9875 MHz (220 260 MHz); UHF: 400 490 MHz 2. Number of channels: 200 channels 3. Transmit power: 60 W 4. Channel spacing: 25 kHz (wideband), 20 kHz (midband), 12. 5 kHz (narrowband) 5. Frequency stability: 2. 5 ppm 6. Operating temperature: 20 to 60 degrees Celsius 7. Operating voltage: DC 13. 8 V + 15% 8. Size: about 19 x 14. 5 x 4. 7 cm 9. Weight: About 1. 2 kg Receiver: 1. Sensitivity (12 dB SINAD)
1. Frequency range: VHF: 136-174 MHz, 245-245.9875 MHz (220-260 MHz); UHF: 400-490 MHz
2. Number of channels: 200 channels
3. Transmit power: 60 W
4. Channel spacing: 25 kHz (wideband), 20 kHz (midband), 12.5 kHz (narrowband)
5. Frequency stability: ±2.5 ppm
6. Operating temperature: -20 to 60 degrees Celsius
7. Operating voltage: DC 13.8 V +/- 15%
8. Size: about 19 x 14.5 x 4.7 cm
9. Weight: About 1.2 kg
Receiver:
1. Sensitivity (12 dB SINAD) wideband/narrowband: ≤0.25 μV / ≤0.35 μV
2. Adjacent channel selectivity (wideband/narrowband): ≥70 dB / ≥60 dB
3. Spurious response (wideband/narrowband): ≥65 dB / ≥60 dB
4. Spurious suppression (wideband/narrowband): ≥70 dB
5. Audio response (wide/narrowband): +1 to -3 dB (0.3–3 kHz) / +1 to 3 dB (0.3–2.55 kHz)
6. Electromagnetic interference and noise (wide/narrowband): ≥45 dB / ≥40 dB
7. Audio distortion: ≤5%
8. Audio power output: greater than 2W ±10%
Transmitter:
1. Output power (wideband/narrowband): 60W/25W/10W (VHF), 45W/25W/10W (UHF)
2. Modulation (wideband/narrowband): 16K F3E / 11K F3E
3. Adjacent channel power (wideband/narrowband): ≥70 dB / ≥60 dB
4. Signal-to-noise ratio (wideband/narrowband): ≥40 dB / ≥36 dB
5. Spurious and harmonic distortion (wideband/narrowband): ≥60 dB
6. Audio response (wideband/narrowband): +1 to -3dB (0.3–3kHz) / +1 to -3dB (0.3–2.55kHz)
7. Audio distortion: ≤5%
Features:
1. The housing is made of eco-friendly PC and polycarbonate, offering high strength, precision, and heat resistance, with reinforced, wear-resistant, and drop-proof construction.
2. Strong penetration capability ensures longer communication distances; stable and reliable transmission power combined with high reception sensitivity guarantees long-range communication and signal coverage.
3. Features a large LCD screen for clear, intuitive, and convenient display of all information; built-in indicator lights allow for effortless operation even at night.
4. 60W high power output, high efficiency, and low energy consumption; high power ensures strong signal penetration
5. Equipped with a simple yet sturdy handheld microphone; buttons are clear and durable, offering easy operation, a comfortable grip, and robust durability
6. Features a DPS noise reduction system with an ultra-high noise reduction ratio
7. Circuit boards are made of aluminum alloy for superior heat dissipation, ensuring stable and high-quality communication
Package list:
1. Main unit x 1
2. Mounting bracket x 1
3. Mounting screw kit x 1
4. Power cord x 1
5. Handheld microphone x 1
6. User manual x 1
Specification:
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4.3 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Upside down (Great)
Format: Hardcover
Was extremely relatable and a blessing I gifted this book and want it back lol but I will be ordering again
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Reviewed in the United States on October 23, 2024
★★★★★ 5
Good book
Format: Paperback
Still working through it but I have no complaints. I have a shelf of no starch books and have not been disappointed by any. Some, of course, are better than others but this is a good book.
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Reviewed in the United States on December 2, 2021
★★★★★ 5
Dive into Algorithms is more like eating a Parfait than trying understand algorithms!
Format: Paperback
Seriously though great writing and explanation along with great history lessons. Also highly recommend for anyone working in the data science field.
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Reviewed in the United States on August 3, 2021
★★★★★ 3
Ok content, not great explanations (2.5 our of 5 stars)
Format: Paperback
I found the contents of this book to be simply ok: either too simple, or the more complicated algorithms and concepts would not be as carefully explained as they should have been. It is not a terrible book, but it feels as though the author did not go over many drafts/iterations of this work.
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Reviewed in the United States on April 7, 2024
★★★★★ 5
An Excellent Self-Discovery Approach to Learning Algorithms
Format: Paperback
I have an Ivy League Master's Degree in Computer Science although it was accomplished 35 years ago. Of course, I had to complete an ACM-type course in Algorithms and Data Structures on the undergraduate and graduate level and managed to by rote accomplish enough to satisfy these courses. But until seeing this great book I never had the feeling of gaining an understanding of the approach to learning and building algorithms and the extent to which it is an important component of all programs. By a journey of guided self-discovery the author shows, not only the necessity of algorithms and their canonical forms, but a path to understanding the construction of algorithms to accomplish common and not so common practical problems. These range from the simple to understand, e.g. implementing Russian Peasant Multiplication, to advanced and up to date topics like Machine Learning.
The highest praise I can give this book is that as a journey of guided self-discovery it produces an understanding in the reader of the process of constructing and understanding these algorithms and their place in all programming.
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Reviewed in the United States on February 7, 2021