NP 282 - ALRS Volume 2 (Explained: Contents and How to use)

Good afternoon, today we will learn about NP-282 ALRS volume 2 So this is basically Radio Address Navigation that is all the AIS, then the records Then the GPS, DGPS, how it is working, the legal time This is the book that will give you the time of a country, then the radio time signals and electronic position fixings So how to use this book is We'll as usual go to the chart catalog NP-131 in NP-131 under publications so publications You will have the ALRS and in ALRS Since we are talking about NP-282 This is the NP-282 So it is basically covered in two parts Which part you are going to use depends on where you are going to sail So you just draw a line which all areas you want to use you can use it Now how to find which is the current edition of the publication? Again for that the easiest way is to use the quarterly notice to mariners So this is basically the quarterly notice to mariners week 39 of 2021 Under this NP-282 this was published in which week of which year their edition the year of publication and These are all the list of the corrections that were applicable Basically, this is a week number and this is the place where that correction applied. So this is how it is done So without further delay, I will go into 282 so my ship is Sailing basically in the Far East So behind this you will get a list of all the NP-282 volumes. I am sailing somewhere here So we will be using that As we open the book on the first page, you should write where you received and which date you received it then comes The record of updates. These are all the records of updates that were carried out on this book Again the contents Then these are pages that are similar to all the books then the abbreviations and glossary used in this book and after this comes the index of geographical sections for radio aids to navigation So radio aids to navigation See the country if it is having a DF station direction finder station Then the radar beacons and the AIS. So if you are sailing in maybe Indonesia Bali Can see there is no direction finding station here there is no radar beacons here and The AIS stations are in 196 page Then comes an explanation of radio direction finding stations. I have never used a radio direction finding station So I will just cover this topic They are giving you a diagram for obtaining half convergency. These are all Something new to me. I never used it and The country of Offering this direction finding system So after this comes This is basically covered in the Canada Next comes the radar beacons radar beacons are of the types of radar beacons Radar beacons their types Then which frequency? Which band frequency of the radar will activate You can see 3 centimeter and 10 centimeter 3 is basically X and 10 is S band After this This is an introduction on how? to read the section So basically, this is the country This is the point. It's lat long which Radar band it is going to support At which angle it is going to get triggered the range in nautical miles The sweep in how many seconds which Morse code is going to come upon your radar? If it is flashing what is the flash and the station number? So basically Raycon's are of two types if it is a fixed It will be a star and if it is a floating one that can be moved It will be having a circle. This is an important thing. You cannot fix Your accurate position using this because it is liable to drift and the Raycon with a Star mark is a fixed position. So this Raycon is fixed. You can get a very accurate position using this Raycon For an example, we can use the horseburg lighthouse. This is basically chart number two four zero three This is a sing singapore entry chart so this is a singapore entry and In the singapore entry there is a lighthouse called the horseburg lighthouse You can see it is showing a Raycon. Oh I'll bring it a little bit more closer to you. Just for the sake of getting it can see a Raycon. Oh, so this Raycon How to find it in this book is very simple radio beacons you just go to Singapore light Singapore. So this is covering Singapore. So Singapore lighthouse This is horseburg the position which Radar frequency it is going to trigger it which all sectors they they are not giving the sectors here It's range also. They are not giving sweep also. They are not giving but it will give you most code. Oh and Flash they are not giving for that Raycon Then the station number ID This is how you can use this book to get a good understanding of what is coming up on your chart So after this comes I I believe you understood how to you use this book for radio beacons radar beacons Next comes this will this is giving you a list of all the radar beacons in the countries so They are not giving you an index here. The index is basically on the aft of this book At the aft of the book, they will give you you can see the index of AES So you can find out the name of the light lighthouse Or the sorry this AES so they will give you the list of all the beacons list of all the radio beacons Radar beacons then you can just find out the name of the light beacon and you can select it from here This is how you can find out also after this comes remember these numbers are In an ascending order, so they are just going up in an ascending order So there is no confusion. You just get the number you just find out which number you can get it It is an increasing order after the radar beacons come the AIS So AIS AIS again, there are certain uses for AIS remember This is a fixed AIS a boy and a beacon So if it is a virtual this is a virtual AIS so AIS how it works and Which all details they are going to transmit it will be covered in the next Next page this is the next page. So they will give you basically it's the same thing the country name place where it is Then the position mmsa number then service details Then if it is virtual or real then the type of message it's going to transmit so these are the types of message and AIS station will transmit Again for an example, this is all the list of all the AIS So how to find this is again very simple Right. Now, I will show you a chart I'll show you a lighthouse with an AIS This is basically a chart 1 8 double 2 1 8 double 2 and this is for the Port of coaching and pending it's in Malaysia. So as for an example, I will be using this lighthouse Tanjongpoh, this is the light frequent Characteristics and this is having an AIS symbol So AIS symbol when it is there how to find it now If you look into this book, it gets confusing because it's not in a chronological order So what you do is you go back to the index of AIS stations so there is It's the last part of this book. The AIS stations are there in this. Yeah, it is Tanjongpoh light It's on 2 1 6 page So I'll go to 2 1 6 page in 2 1 6 page Tanjongpoh Tanjongpoh, this is the lighthouse. So it's in Malaysia and The position mmsa number service details, they are not giving any then if it is virtual or real and Types of messages it's transmitting. This is how an AIS has to be read out Also, remember when you this I learned very lately when you make an AIS entry into your chart the remember AIS which is written in This format you are not writing it in italics This is a real AIS and all these AIS are virtual AIS. I Have read it somewhere here So remember this this is very important when you correct your charts This is how on a Atomality nautical chart AIS, Aton is aids to navigation. AIS is indicated by magenta circle and an adjacent Legend AIS. The font will be upright for a fixed Aton. Aton is Aids to navigation. So it will it should be upright when you are giving when you are correcting For a fixed AIS and in italics on a floating Aton Sorry, it's not virtual. It's a floating Aton. All the floating Atons will have This mark should be in italics after this comes Remember, these are all the corrections and in this book you have pages separately given to correct your a your corrections for NP-2A2 satellite based global positioning system What are the types the Galileo system then the GLONASS the BIDU then the Indian IRNSS and The GPS so for GPS there is a thing called DGPS DGPS is basically there is a correct. There is a small error in your GPS position when you receive it from a satellite so basically they are going to Compare the difference from of a known location on land Calculate its value and send it to your GPS receiver so that your position fix is accurate So for that DGPS There will be stations that transmit the messages so again, same the country the point its position then carrier frequency then the rate of signal transmission Identification number of the reference station Then comes range in nautical miles then if the integrate integrity monitoring is happening or not and Types of messages transmitted so the types of DGPS messages are listed in a separate column So these are all the DGPS stations after this comes with the index of diagrams for radio beacon transmitting DGPS It's a index of diagram For Far East for China Korea Japan all this I'll skip it next comes the standard time Standard time is This and for this you have to get you have to understand something called International date line I will talk about this in a later video in the standard time designators see some countries are having a lot of Lot of time zones, so for them they will take it as a standard time so for that the standard time They are giving it here This part of the book is very important because you will have to find out the local time of the region Where you are sailing into? So this is basically the time zones of the whole world and Europe and North Africa they have enlarged into a separate section Then comes all the legal times of all the nations in the world One of the most important thing you have to do remember is this is the country standard time and Daylight saving time daylight saving time is really important so During the daylight beginning local time to end local time The standard time has changed from plus 1 to 0 Another example is in Spain the standard time has changed from minus 1 to minus 2 from Last Sunday in March 0 to 0 0 hours to last Sunday in October 0 3 0 0 hours, so during that time The time zone has changed, so if you are if you are using minus 1 you should start using minus 2 This is daylight saving time all the countries won't have it if the country doesn't have it. They will just put an X mark So this is really important for all us mariners After this comes after the legal time comes the Universal time coordinate so Universal time coordinate these are all not going to affect us navigators as For navigation, so I'll just skip this it will give you the universal time Coordinated universal time then the radio time signals radio time signals Again, this is all self-explanatory. I'll just pause it here for some time. You can just read through it I Believe you it's getting a good view of this page then comes Next is the cheapest clocks for computer time synchronization. I Have basically never done this in my ship, so I'll skip this It's just included in the book after this radio time signals comes electronic position fixing system Lawrence e Lawrence e is Again of something that we have never used these are all old Olden times position fixing systems so The Lawrence e the stations and the slave stations. They are giving an index This is an diagram after this comes Index of radio direction finding stations. This was the starting Thing in the book then comes the index of radio beacons already explained to you Then comes index of AES How to use it I have explained Then the radio beacons transmitting DGPS that these are the DGPS stations then radio time signal index of countries and finally the International Morse code So this is the Morse code Given to you and finally some of the notes These are places for writing down notes and This book is complete so I believe you have got a good understanding of how to use NP 282 or LRS volume 2 Thank you for watching