Class notes
radio navigation
- Course
- Institution
Revision sheets of the RADIO NAVIGATION module, carried out with courses and the AE database. Achieved 90% success.
[Show more]
1 review
By: BasherBogazia • 2 year ago
Seller
Follow
kdmn
Reviews received
Content preview
ATPL (A)Review Worksheets
062 RADIO NAVIGATION
BY KDMN
2020
,I/ SIGNALS
01 GENERALITIES
• Radio waves travel at the speed of light = 300 000 000 m/s
• Cycle = complete series of values of the periodical process.
FREQUENCY BAND FREQUENCIES USES
Very Low VL 3 KHz – 30 KHz Very long range nav
Low L 30 KHz – 300 KHz NDB/ADF
Loop antenna
Medium M 300 KHz – 3 MHz NDB/ADF
High H 3 MHz – 30 MHz HF radiotelephony, Volmet
Very High VH 30 MHz – 300 MHz VDF, VOR, ILS LOC, Marker beacon
Ultra-High UH 300 MHz – 3 GHz DME,ILS GS, SSR, GNS
Super High SH 3GHz – 30 GHz Surveillance radar, WX radar, radio altimeter,
airport sfc movement radar
Extremely High EM 30 GHz – 300 GHz Airport SFC MVT radar
02 MODULATION
• It is a periodic variation of the sinusoidal carrier signal by the modulating signal to be transmitted.
• RADIO REGULATION:
Nature of the signal modulating the main carrier
A1A
Type of modulation of the main carrier (A, F, P…) Nature of information transmitted (aural…)
a) AMPLITUDE MODULATION AM: the information is impressed onto the carrier wave by altering
the amplitude of the carrier. It is used in ADF, ILS.
, b) FREQUENCY MODULATION FM: : the information is impressed onto the carrier wave by altering
the frequency of the carrier. It is used in the radio-altimeter.
c) PHASE MODULATION PM: a modulation form used by GPS where the phase P of the carrier is
reversed.
d) PULSE MODULATION: a modulation form used in radar by transmitting short pulses followed by
larger impulsions.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller kdmn. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $10.05. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
48756 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 15 years now