The training program will now resume

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Now for the interesting part:

“Field Programming”

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OK, you asked for it• 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

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You need to know these things to enter a channel:

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• Whether this is to be included in the Scan List

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• Whether this is a Narrow or Wide Band FM channel

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• A name for this channel up to 10 characters long

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• The TX & RX frequencies and subaudable tone

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• Is this channel already programmed in this radio? [Page Up] [Page Up]

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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

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• The DISPlay switch now shows what it is that you’re changing - The name display, transmit frequency, receive frequency, etc [Page Up] [Page Up]

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• We’ll start with the DISPlay switch in the <center>

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• We learned that the DISPlay switch in the (RX) position shows the Receive frequency

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• It’s the same with programming: You’re programming whatever the DISPlay is set to show at the time

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RX

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• Being as the DISPlay now shows the RX display, we’ll begin programming the Receive frequency

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• The NEXT switch chooses the digit to be edited

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• The SELECT switch makes the number change[Page Up] [Page Up]

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• After each digit is SELECTed, go to the NEXT one and keep going until the whole frequency is entered

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• Then, go NEXT even further over to the right, and enter the CTCSS tone as needed.

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• That’s it for the Receive frequency[Page Up] [Page Up]

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• Now that we have an RX frequency, we’ll do the exact same thing for the Transmit side of the formula

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• Change the DISPlay switch to the right, to the TX setting

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• Duplicate the frequency and tone which was put into the RX side (unless the circumstance directs otherwise)

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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

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• This step changes items seen in the ID screen, so we need to switch the DISPlay to ID to make these changes

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• 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

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• For the time being, we’ll assume all field entries will be in Wide Band format, as used by our other radios at present

• The next choice is for Wide or Narrow FM channel width

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• Select whether this channel is to be put on the Scan List for later use in channel scanning

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• Finally, return the EDIT switch to the center position

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• Finally, return the EDIT switch to the center position

Take a moment to go through this informal check-list just once more, to ensure that the equipment is ready for action…..

Setting OptionsSetting Options

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Mission-Ready Check ListMission-Ready Check List

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DISPlay Switch = ID

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Channel = Air to Ground

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SCAN Switch = Normal

(Not Scanning At This Time)

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Guard1/Guard2 Switch = G2

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Verify that you left :

POWER = HI

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TONES = ON

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EDIT Switch = <Centered>

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…and now for some practical review of setings….

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PressPress Here Here for Answerfor Answer

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You’re not transmitting CTCSS tone on your radio; Check and correct this no-tone-xmit condition

• Your ground team calls and urgently tells you they can only hear you when they use their “Monitor” button

• Why?

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PressPress Here Here for Answerfor Answer

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Pull, then move to the right, the EDIT/STep switch

• “How do I do that?” you ask.

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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

• “How do I do that?” you ask.

“ NEXT”“ NEXT”

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Use the SELECT switch to turn the TONES ON

“ SELECT”“ SELECT”

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Use the SELECT switch to turn the TONES ON

Return the EDIT/STep switch to the Center

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Return the EDIT/STep switch to the Center

Use the SELECT switch to turn the TONES ON

PressPress Here Here for Answerfor Answer

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• Name the things you need to know before you program a radio channel into this unit

- The Transmit and Receive Frequency

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- The Subaudiable tone (CTCSS) required

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- Is this channel already programmed in this radio?Page Up Page Up

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• What else would it help to know about this channel?

- A name for this channel up to 10 characters long

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- Whether this is to be included in the Scan List

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- Whether this is a Narrow or Wide Band FM channelPage Up Page Up

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ConclusionConclusion

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

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This concludes Part II, Advanced User Training on the use of the NPX138N VHF-FM Radio

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