2 types of HF propagation - Ground wave
Sky wave
3 components of HF ground wave signal - Direct wave
Surface wave
Ground reflected wave
3 factors that influence LOS range - Frequency of operation
Radio output power
Antenna height
4 factors that affect ground waves - Electrical characteristi...
RSLC Commo
2 types of HF propagation - ✔✔✔Ground wave
Sky wave
3 components of HF ground wave signal - ✔✔✔Direct wave
Surface wave
Ground reflected wave
3 factors that influence LOS range - ✔✔✔Frequency of operation
Radio output power
Antenna height
4 factors that affect ground waves - ✔✔✔Electrical characteristics of the earth
Height of antenna
Power output and frequency of transmitter
Shape and conductivity of the earth
AN/PRC 150 HF power output - ✔✔✔20 watts
AN/PRC 150 LOS range - ✔✔✔7-10 km
AN/PRC 150 VHF power output - ✔✔✔10 watts
AN/PRC freq range - ✔✔✔1.6-60 MHz
, ASIP freq range - ✔✔✔30-87.975 MHz
ASIP power output - ✔✔✔4.0-4.4 watts
Common LOS radios - ✔✔✔ASIPS
MBITR
MBITR2
Harris AN/PRC 152
Does HF commo use satellites? - ✔✔✔No, it uses the earth's atmosphere
How can LOS be increased? - ✔✔✔Increase antenna and/or radio power
How can you estimate the FOT? - ✔✔✔85% of MUF
How fast do radio waves travel? - ✔✔✔Speed of light
How many channels are on the MBITR channel rotary knob? - ✔✔✔16
How many keys are required to be loaded for HPW operations and what are they? - ✔✔✔2 keys:
SATELLITE TSK
KG-84 TEK
How many layers are in the ionosphere during the day? - ✔✔✔4 (D, E, F¹, F²)
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 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 jessyqueen. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £8.49. You're not tied to anything after your purchase.
