NAT NPX138N VHF-FM Radio Part I Briefing on General Use and Settings

NAT NPX138N VHF-FM Radio Part I Briefing on General Use and Settings
DEWG CAP 5/23/00 Ver. 1.0

How to Navigate this course
This presentation has animation sequences to help demonstrate the way some things work This presentation has animation sequences to help demonstrate the way some things work In order to allow you to get the most out of these aids, you’ll be afforded the ability to move forward at your own pace. You’ll know it’s your turn to go forward in the presentation when you see this button Page Up or NEXT Press any key once you see this. The space-bar works great as an “any key”. If you want to replay animation, use the Page Up key on your PC, and press any key to restart that part Page Up or NEXT Go ahead and try this on your own:

This is the NPX-138 radio from Northern Airborne Technology, Ltd of Canada which has been designated as CAP’s aircraft VHF-FM radio of choice. FAA accepted for aircraft use 100 channels within the mHz VHF spectrum “Guard” (priority) channel monitor capability Programmable from laptop computer in the field [Page Up or NEXT

Introduction “NEXT” “HELP” …if you want to search the built-in tutorials, you can press the white button marked “help” at this time. Otherwise, you may go to the Channel Display by lightly toggling the BRIGHTNESS switch, also labeled “NEXT”, either direction. Page Up or NEXT

Introduction The position of the EDIT switch governs the way in which the other switches operate. This is a pull-type lockout toggle switch DON’T move this until you cover Part II, Advanced Training on field program options and scanning The EDIT switch centered, the function of the other chief toggle switches are as labeled above them: Display, Channel, and Brightness. Page Up or NEXT Page Up or NEXT

Introduction Some of the more obvious controls are right here:
Main Volume - Adjusts receiver volume Display Type - Changes display mode Some of the more obvious controls are right here: Main Volume - Adjusts receiver volume Display Type - Changes display mode Some of the more obvious controls are right here: Main Volume - Adjusts receiver volume Display Type - Changes display mode Channel Select - Choose the channel you want Brightness - Adjust the screen brightness Channel Select - Choose the channel you want Brightness - Adjust the screen brightness Channel Select - Choose the channel you want Brightness - Adjust the screen brightness Page Up or NEXT Page Up or NEXT

Introduction Scan Select - allows scanning or no scanning
Guard Channel Volume and Guard Select - allow use of second receiver circuit on a Guard frequency Scan Select - allows scanning or no scanning Guard Channel Volume and Guard Select - allow use of second receiver circuit on a Guard frequency Page Up or NEXT

Operating the Radio Introduction
Let’s cover these functions in greater detail There are two possible screen readout types to observe, and you may use which ever you prefer: This “Alpha-Numeric” readout………. Page Up or NEXT

Operating the Radio ……....Or this “Frequency” readout. Page Up or NEXT

Operating the Radio Display Switch to the left shows the ID Display Switch to the center is the Receive Display. This is the actual receive frequency for this “channel” The DISPLAY switch lets you choose the display mode. Page Up or NEXT Page Up or NEXT

Operating the Radio You recall from ROA training that a “channel” is comprised of 1) a radio frequency, and 2) a subaudible note, or tone, which rides underneath the voice audio and opens up other radios’ receivers The tone for this channel is 100 cycles, or Hertz See the number to the right of the RF frequency. This is the subaudiable tone, or CTCSS tone which is programmed for that channel Switch to the right is the Transmit Display. The TX and RX frequency will most often be the same in airborne communications Exceptions will arise. Page Up or NEXT Page Up or NEXT

Operating the Radio This screen shows everything one really needs to know while in the air: The Channel, as known on our other VHF-FM radios …this ID Display condition This is your preferred, typical view screen. …this ID Display condition In the interest of safety and confusion avoidance, it’s recommended that the radio is left in…… …this ID Display condition The normal use or tasking for that channel Page Up or NEXT Page Up or NEXT

Operating the Radio Getting Started CTCSS Tone On or Off
Power display - HI = 10 Watts, LO = 1 Watt HI Power would be the normal setting CTCSS Tone On or Off “ON” would be the normal setting Page Up or NEXT

Operating the Radio Notice that we didn’t specify the means for changing the variables such as tone, power, etc Once this radio is installed and programmed, it should just power up and operate “as is” Page Up or NEXT

Operating the Radio Part II, the Advanced User segment of this training series will cover the specifics of changing the options for tone, power, and other matters These functions need not be altered in any way, as long as the display reads as just specified Page Up or NEXT

Operating the Radio Here’s an overview of the other chief functions:
On/Off and Volume - Traditional function and purpose On/Off and Volume - Traditional function and purpose Squelch - Push in to hear the weakest of signals Squelch - Push in to hear the weakest of signals Channel - Pick the channel of operation desired Channel - Pick the channel of operation desired Page Up or NEXT

Operating the Radio If one considers just this much, the NPX-138N works just like any other VHF-FM radio Turn on, set channel, adjust volume as required Turn on, set channel, adjust volume as required Turn on, set channel, adjust volume as required Turn on, set channel, adjust volume as required Set display mode and screen brightness Set display mode and screen brightness Set display mode and screen brightness Set aircraft comm panel as necessary Page Up or NEXT

Operating the Radio If one considers just this much of the radios operation, it works just like any other VHF-FM radio Leave the scan select on NORMAL, or centered Leave the scan select on NORMAL, or centered

Operating the Radio If one considers just this much of the radios operation, it works just like any other VHF-FM radio Leave the scan select on NORMAL, or centered Press in the Squelch button to hear very weak signals Press in the Squelch button to hear very weak signals

Operating the Radio If one considers just this much of the radios operation, it works just like any other VHF-FM radio Leave the scan select on NORMAL, or centered Press in the Squelch button to hear very weak signals Change channels as required Change channels as required during mission Page Up or NEXT

Operating the Radio “So, just what is this ‘Guard Channel’ feature, anyway?” Set the Guard Volume Control counterclockwise to it’s lowest setting for now Set the Guard Volume Control counterclockwise to it’s lowest setting for now Switch the Guard Channel Select to channel 1 or 2 depending upon the needs of your local Command Switch the Guard Channel Select to channel 1 or 2 depending upon the needs of your local Command Page Up or NEXT Page Up or NEXT

Imagine your radio is actually -- 2 radios in one!
Here’s how to use the Guard feature: You could work one channel while listening to another You could go “off frequency” with a ground team, and still catch a call on your primary channel from Mission Base (or from another air crew or ground team) National F-1 and F-4 are default programmed as GD1& GD2 Use the Guard Select switch to choose which guard channel to monitor - the repeater or the air-ground frequency Use the Guard Select switch to choose which guard channel to monitor - the repeater or the air-ground frequency Use the Guard Select switch to choose which guard channel to monitor - the repeater or the air-ground frequency You could be doing work with another agency on their channel, and still receive a CAP mission alert Leave the SCAN switch in NORMal mode for now You could answer these calls without switching the dial Set the Guard Volume to a desired level Page Up or NEXT Page Up or NEXT Page Up or NEXT Page Up or NEXT Page Up or NEXT

Choose your other operating channel with the CHANnel switch, in the common fashion for channel selection If you hear a call and the lamp immediately to the right of the regular on-off-volume knob lights up, then that was on the regular channel as indicated on your display Answer that call in the regular fashion, you don’t have to change or move anything on the radio to do so Page Up or NEXT Page Up or NEXT

Adjust the GD Volume if necessary for good audio
If you hear a call and the lamp just to the right of the Guard Channel (GD) knob lights up - then you would: If you hear a call and the lamp just to the right of the Guard Channel (GD) knob lights up - Adjust the GD Volume if necessary for good audio Change the SCAN/NORM switch to the bottom setting, which is labeled “GD TX” - Guard Transmit Change the SCAN/NORM switch to the bottom setting, which is labeled “GD TX” - Guard Transmit Change the SCAN/NORM switch to the bottom setting, which is labeled “GD TX” - Guard Transmit All transmissions from you will now go out over the Guard Channel you selected with the switch GD1/GD2 Page Up or NEXT Page Up or NEXT Page Up or NEXT

Once all Guard Channel traffic is cleared, you would -
It should be pointed out that Guard Channel/Regular Channel co-monitoring is no different than the way we use the aircraft aviation band comm radios… You can hear traffic on either one, but they both have their own volume and TX controls Once all Guard Channel traffic is cleared, you would - Revert back to normal operation by switching the SCAN/NORM switch back up to where it was before Adjust Main and Guard volumes, as necessary Simply set the NPX-138N’s two volume knobs as needed & answer either “radio” by means of the NORM - GD TX switch Continue normal operations Guard Volume has a preset minimum volume level Guard Volume has a preset minimum volume level Page Up or NEXT Page Up or NEXT Page Up or NEXT

Final Practical Review
Operating the Radio Final Practical Review … And that’s it !! So, Let’s review just once more on the important stuff: - You see this “HELP” screen, so you would do what in order to get past this screen and on to business? We know we need to see a channel display of one kind or the other, so we can use the radio. Page Up or NEXT Toggle the switch labeled “BRIGHTNESS”/”NEXT” NEXT for Answer

- You can display the Channel by Frequency or by it’s “name” or common usage. Choose this how? Page Up or NEXT Toggle the switch labeled “DISP”, for “Display” NEXT for Answer

We’re asked to go off to another channel to assist an outside agency on a mission or work a ground team How do we keep an ear out for Mission Base as well? Use the Guard switch, choose GD 2 for CAP-4, & you’ll hear calls on either frequency NEXT for Answer Page Up or NEXT

….and so you’re on your agency assist and you hear a call from another CAP airplane on GD 2, which you know is CAP’s Channel 4 Page Up or NEXT What’s the fastest, easiest way to answer them? This switch all the way down, and speak to them NEXT for Answer

Conclusion This is for timing Now that you’ve seen this, the radio owners manual should be reviewed -- while you’re sitting in front of the radio if possible There’s absolutely no substitute for hands-on field experience Try these basic steps while you’re on the ground, so that they become second-nature when you’re in the air That’s it!

This is the end of the Introductory Level Briefing on the basic use of the NPX138N from NAT, Ltd
Continue with the Advanced User Briefing to learn to use Scanning, Priority, and Direct Frequency or Channel Editing

NAT NPX138N VHF-FM Radio Part II
Advanced User Training on the use of Scanning, Priority, and Direct Frequency / Channel Editing DEWG CAP 9/30/00 DAFB Air Mobility Command Museum Dover, Delaware

This is the Advanced Training for use of the NPX-138 from Northern Airborne Technology
Specific assumptions are made that the student understands the purpose of certain VHF-FM specific matters [such as CTCSS tones], and is comfortable with prior instruction on general use as covered under Part I of this user training series It is assumed for the purposes of this advanced training that the operator/student has at least some experience with frequency agile radios Examples of such are aviation band comm radios or certain VHF-FM applications [Page Up] or NEXT [Page Up] or NEXT Remember, this means you may press any key to continue

Proceed further if you desire information on Channel Scanning, Priority Scanning, and in-the-field frequency entry. Do so only if you feel entirely confident with the preceding material under Part I, the Basic NPX-138N User Training. [[Page Up] or NEXT

One makes display selections by means of 4 toggle switches.
Review One makes display selections by means of 4 toggle switches. Many radios will arrive with the default screen shown here. Your radio can be re-programmed to come on and go directly to the channel position of your choice. For now, let’s assume this is what you see…. Most references to adjustments will be with respect to one or more of these switches. [Page Up] or NEXT [Page Up] or NEXT

We now see the normal operating screen
Review “NEXT” IF your radio does power up with this screen, simply move the “NEXT” {Brightness} toggle to the left or right We now see the normal operating screen [Page Up] or NEXT [Page Up] or NEXT

X X X “And how, exactly, do I do that?”, you ask. Review
The EDIT switch is normally centered so that important settings don’t get messed up You can, however, make corrections to TONE, POWER, SIMPLEX/DUPLEX, SCAN & PRIORITY choices by this means You can, however, make corrections to TONE, POWER, SIMPLEX/DUPLEX, SCAN & PRIORITY choices by this means You can, however, make corrections to TONE, POWER, SIMPLEX/DUPLEX, SCAN & PRIORITY choices by this means You can, however, make corrections to TONE, POWER, SIMPLEX/DUPLEX, SCAN & PRIORITY choices by this means You can, however, make corrections to TONE, POWER, SIMPLEX/DUPLEX, SCAN & PRIORITY choices by this means You can, however, make corrections to TONE, POWER, SIMPLEX/DUPLEX, SCAN & PRIORITY choices by this means [Page Up] or NEXT [Page Up] or NEXT

Setting Options The important mode selections are STEPPED through, one at a time, by moving the EDIT switch to the right -- to the STep position The important mode selections are STEPPED through, one at a time, by moving the EDIT switch to the right -- to the STep position [Page Up] or NEXT

Setting Options The important selections are STEPPED through, one at a time, by moving the EDIT switch to the right -- to the STep position The EDIT switch in this position changes the mode of these other two switches to NEXT and SELECT, as labeled below them The EDIT switch in this position changes the mode of these other two switches to NEXT and SELECT, as labeled below them The EDIT switch in this position changes the mode of these other two switches to NEXT and SELECT, as labeled below them The EDIT switch in this position changes the mode of these other two switches to NEXT and SELECT, as labeled below them [Page Up] or NEXT

Setting Options Toggling the switch labeled NEXT takes you through the different modes or settings which can be adjusted, such as Power, Tones, Scan, etc These settings are “global” - They affect all channels, not just the one displayed at the time [Page Up] or NEXT

The key is knowing what it is you want or need
Setting Options The SELECT toggle makes the desired change, such as (selection) On, (selection) Off, or setting High or Low, etc The key is knowing what it is you want or need [Page Up] or NEXT

And we know we can execute the change by toggling the SELECT switch.
Setting Options “SELECT” “NEXT” So we know now that we can change various parameters by running thru them one at a time with the NEXT switch So we know now that we can change various parameters by running thru them one at a time with the NEXT switch And we know we can execute the change by toggling the SELECT switch. And we know we can execute the change by toggling the SELECT switch. [Page Up] or NEXT [Page Up] or NEXT

Setting Options The Transmit mode should be left in DUPLEX, so that repeater channels will work. Duplex channels use one frequency for transmit and another for receive The next variable in this sequence is the POWER OUTPUT with a choice of HI, which is 10 Watts of power (max allowed in CAP air service), or LO, which is 1 Watt The first variable which comes up is the Simplex/Duplex selection Channels meant to be “Simplex” , such as 1 thru 4, have been programmed with TX and RX the same so they will act as simplex channels just fine One usually thinks of Simplex operation as direct, radio-to-radio contact, while Duplex is most often associated with repeater use [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

Setting Options The choices for the TONES setting are: ON, OFF, or TX ONLY. Leave “ON” for most general use The TONES selection is the next variable You recall from ROA training that a “channel” is comprised of 1) a radio frequency, and, 2) a sub-audible note, or tone, which rides underneath the voice audio and opens up other radios’ receivers IF you need to hear a channel without your receiver tone filter on, “TX ONLY” does this. Don’t ever set to “TONES=OFF”. This cuts TX tones as well & you’ll forget, leaving it unusable for future air crews. [Page Up] or NEXT [Page Up] or NEXT

The next changeable option is the TONE DISPlay.
Setting Options The TONE DISPlay mode determines how that tone is labeled, for programming or reference purposes The next changeable option is the TONE DISPlay. In order to explain it’s significance, take a look at the main screen again, in this DISPlay mode Choices are the audio frequency itself, such as 100.0, or the EIA# such as “12”, or other nomenclatures used by the Motorola or Wulfsberg companies Assume you’re now in the RX Display mode [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

Setting Options We refer to tone types in both simplex and repeater service by their frequency Hz, Hz, etc This will become important if you should need to install other users’ channels in the field [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

Setting Options The next selectable options are the SCAN bank designator and the PRIORITY selector These two functions and their set-up are related, so we’ll cover them together in just a moment So, “TONE DISPlay” is simply a choice of ways to refer to the CTCSS tones you may need to enter in the field Let’s go back to the STep SELECTion we just left, showing the TONE DISP option and continue from there…... [Page Up] or NEXT [Page Up] or NEXT

Setting Options Another selection along in the Step process lets you choose the channel you see when you POWER-UP the radio [Page Up] or NEXT

EDIT Switch = <Centered>
Setting Options Verify that you left : Consider leaving all settings as show above: We didn’t go through all selections possible within each variable option category Most people won’t need to change any of these aforementioned selections, but it’s good to know how to do so in the field or on a mission Once all of the STepped variables have been set, return the EDIT switch to the center position. DISPlay Switch = ID POWER = HI SCAN Switch = Normal Channel = Air to Ground or as directed by your local command Guard1/Guard2 = G1 or as directed by local command EDIT Switch = <Centered> TONES = ON [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

Advanced User Training
OK, let’s cover Channel Scan and Priority Scanning is the process of allowing the radio to listen to many channels in a repeating sequence The receiver stops on a channel if it’s in use, so you can hear if there’s traffic of interest to you [Page Up] or NEXT

SC The display, in ID DISPlay mode, will show “SC“ to the right of the Channel Name if it’s on the Scan List If you choose to use the SCAN feature, first put your radio on the primary Channel you’re going to be working Then, move the SCAN/NORM switch upwards and the radio will begin scanning channels [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

SC If the “home channel” becomes busy, the receiver will revert back there for you If a channel becomes a nuisance, toggle the CHANnel switch to “ - ” to make the radio ignore that channel This temporary bypass request is reset once you leave the SCAN mode, or if you power off the radio [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

SC PI In addition to being on the normal Scan list , certain channels can be designated as Priority channels You’ll see a PI or P2 to the right of the Channel Name if this channel was programmed as a Priority channel If a Priority channel becomes active while you’re scanning, the radio will go to the priority channel [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

SC PI = This is NOT the same as a guard channel. A scanned channel is monitored in sequence; A Guard channel is monitored simultaneously regardless of other activities This is NOT the same as a guard channel. A scanned channel is monitored in sequence; A Guard channel is monitored simultaneously regardless of other activities This is NOT the same as a guard channel. A scanned channel is monitored in sequence; A Guard channel is monitored simultaneously regardless of other activities A channel is made a Priority channel at the time of programming; This can be changed in the field by persons who know how to edit or enter channels in the field [Page Up] or NEXT [Page Up] or NEXT

SC PI 3 2 1 “NEXT” We now know that there is a batch of channels listed in a main Scan group, and that there are certain ones among this group which are Priority selections 1. Move the EDIT/STep switch to the right 2. Use the NEXT toggle to find the SCAN options (Note that at present, only the normal scan list is chosen) 3. SELECT whether to scan just the LIST of scan-channels, or if you want the scan-LIST and the PRIority feature to be engaged How do we decide if we want to simply scan those in the Scan group batch, or if we want to be interrupted by Priority channels as well? [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

SC PI SC PI SC PI SC PI SC PI The use of scanning is a subject best covered in detail under self-study in front of the radio with the manual Please avail yourself of this time-honored training technique [Page Up] or NEXT

Please take a 15 Minute recess before continuing with this program
BREAK Please take a 15 Minute recess before continuing with this program Please load the file NPX138 2of2 Advanced Training.ppt for the rest of this training session. Please load the file NPX138 2of2 Advanced Training.ppt for the rest of this training session. Please load the file NPX138 2of2 Advanced Training.ppt for the rest of this training session.

Part 3

SC PI Now for the interesting part: “Field Programming”

The truth is that once you practice this procedure on an empty channel, you’ll find it follows very predictable steps from operation to operation OK, you asked for it [Page Up] or NEXT

SC PI Whether this is to be included in the Scan List You need to know these things to enter a channel: Whether this is a Narrow or Wide Band FM channel A name for this channel up to 10 characters long The TX & RX frequencies and subaudable tone Is this channel already programmed in this radio? [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

Let’s first dial up the radio frequency Move the EDIT switch to the LEFT this time We’ll call this the EDIT CHannel selection We’ll call this the EDIT CHannel selection The DISPlay switch now shows what it is that you’re changing - The name display, transmit frequency, receive frequency, etc [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

RX We’ll start with the DISPlay switch in the <center> We learned that the DISPlay switch in the (RX) position shows the Receive frequency It’s the same with programming: You’re programming whatever the DISPlay is set to show at the time [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

Being as the DISPlay now shows the RX display, we’ll begin programming the Receive frequency The NEXT switch chooses the digit to be edited The SELECT switch makes the number change [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

After each digit is SELECTed, go to the NEXT one and keep going until the whole frequency is entered Then, go NEXT even further over to the right, and enter the CTCSS tone as needed. That’s it for the Receive frequency [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

Now that we have an RX frequency, we’ll do the exact same thing for the Transmit side of the formula Change the DISPlay switch to the right, to the TX setting Duplicate the frequency and tone which was put into the RX side (unless the circumstance directs otherwise) [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

SC The next step is to assign the Identification, Channel Bandwidth and Scan List inclusion The next step is to assign the Identification, Channel Bandwidth and Scan List inclusion The next step is to assign the Identification, Channel Bandwidth and Scan List inclusion The next step is to assign the Identification, Channel Bandwidth and Scan List inclusion This step changes items seen in the ID screen, so we need to switch the DISPlay to ID to make these changes Again, use the NEXT switch to choose which space to edit, and then SELECT the letter, numeral, symbol needed Again, use the NEXT switch to choose which space to edit, and then SELECT the letter, numeral, symbol needed Again, use the NEXT switch to choose which space to edit, and then SELECT the letter, numeral, symbol needed [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT

W SC The next choice is for Wide or Narrow FM channel width For the time being, we’ll assume all field entries will be in Wide Band format, as used by our other radios at present Select whether this channel is to be put on the Scan List for later use in channel scanning [Page Up] or NEXT [Page Up] or NEXT

W SC Finally, return the EDIT switch to the center position Finally, return the EDIT switch to the center position [Page Up] or NEXT

EDIT Switch = <Centered> DISPlay Switch = ID
Setting Options Mission-Ready Check List w SC Take a moment to go through this informal check-list just once more, to ensure that the equipment is ready for action….. Verify that you left : SCAN Switch = Normal (Not Scanning At This Time) Guard1/Guard2 Switch = G2 or as directed by local command POWER = HI Channel = Air to Ground or as directed by your local command EDIT Switch = <Centered> DISPlay Switch = ID TONES = ON [Page Up] or NEXTrt [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXTrt [Page Up] or NEXT [Page Up] or NEXT [Page Up] or NEXTrt

…and now for some practical review of setings…. Page Up or NEXT

Your ground team calls and urgently tells you they can only hear you when they use their “Monitor” button Why? You’re not transmitting CTCSS tone on your radio; Check and correct this no-tone-xmit condition Press Here for Answer Page Up or NEXT

“How do I do that?” you ask. Pull, then move to the right, the EDIT/STep switch Press Here for Answer Page Up or NEXT

“ NEXT” “How do I do that?” you ask. Pull, then move to the right, the EDIT/STep switch Use the NEXT switch to toggle around until you find the selection for TONE control options Page Up or NEXT

“ SELECT” Use the SELECT switch to turn the TONES ON Page Up or NEXT

Use the SELECT switch to turn the TONES ON Return the EDIT/STep switch to the Center Page Up or NEXT

w SC Name the things you need to know before you program a radio channel into this unit The Transmit and Receive Frequency Press Here for Answer The Subaudiable tone (CTCSS) required Is this channel already programmed in this radio? [Page Up] or NEXT Page Up or NEXT Page Up or NEXT

SC What else would it help to know about this channel? A name for this channel up to 10 characters long Press Here for Answer Whether this is to be included in the Scan List Whether this is a Narrow or Wide Band FM channel [Page Up or NEXT Page Up or NEXT Page Up or NEXT

Conclusion w SC It is hoped that this Advanced User Training will assist you in the safe and confident operation of airborne missions using this piece of equipment This concludes Part II, Advanced User Training on the use of the NPX138N VHF-FM Radio

Questions ? Always Think Safety!

NAT NPX138N VHF-FM Radio Part I Briefing on General Use and Settings

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