#3,915 in Computers & technology books
Use arrows to jump to the previous/next product
Reddit mentions of High Frequency Techniques: An Introduction to RF and Microwave Design and Computer Simulation (Wiley - IEEE)
Sentiment score: 1
Reddit mentions: 1
We found 1 Reddit mentions of High Frequency Techniques: An Introduction to RF and Microwave Design and Computer Simulation (Wiley - IEEE). Here are the top ones.
or
- Folate as bioactive L-5-Methylfolate is fundamental to support energy levels, brain health and promote overall well-being
- L-5-MTHF is the most bioactive, stable form of folic acid
- Benefits heart and nervous system health
- 60 fast melting tablets with "Orange Blast" flavor
- MADE IN THE USA: Zero Sugar, Vegan, Gluten-Free, Non-GMO, Natural Flavors, Natural Sweeteners, Natural Colors
Features:
Specs:
| Height | 8.999982 Inches |
| Length | 6.098413 Inches |
| Number of items | 1 |
| Release date | August 2016 |
| Weight | 1.70196866264 Pounds |
| Width | 1.098423 Inches |
Great, I was waiting for something like this! Thanks!
Ok, let's go - here is a description about A-50, the predecessor of the subj. - http://www.airwar.ru/enc/spy/a50u.html Even for that older guy detection range for "fighter jet size object" claimed to be 300-600 km.
New guy has AESA radar instead of dish used in the old one. Comparing power ranges from the old good days and new radars I would say new radars have about 10 times higher power output. Ok, let's assume it's 5 times. Anyway, it means 1,5 time longer detection range.
This gives us 450-900 km detection range for jet's like F-15. So, now what about "stealth"? In fact on the frequencies those aircrafts use stealth makes no much sense. To prove this I'd need to quote the good part of book like this: https://www.amazon.com/High-Frequency-Techniques-Introduction-Simulation/dp/1119244501/ref=sr_1_12?ie=UTF8&qid=1522516895&sr=8-12 - but you better read it by yourself, it will help you to understand many things around you (this book alone, in fact, is not enough - that's why people spend years in universities... but it's a good start anyway).
So, because F-22 has exactly "fighter jet size" and both it's shape and RAM coating don't decrease it's RCS on low frequencies significantly it would be reasonable to say it can be detected at the same range as F-15.
But in fact it's not completely true. Because F-22 "flattened" and has some features to get lower RCS for longer waves as well - it has probably several times lower RCS than F-15. Let's say again 5 times (like it's 5 times smaller). But unluckily for you RCS and emitter power are in the same place in "radar equation" so it takes us back to 300-600 km of detection range.
This is quite based on facts, logic and physics. You may argue with that, but I'd expect you to do it in the same way. Based on your facts, logic and physics.
Otherwise, I'd assume you're just a person who doesn't know about radio horizon and in addition blame everybody just because you don't like what they said. Now I'm curios how far you can go to beg a pardon or go to physics depth :)