FM Transmission. YAESU FT-817nd


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FM Transmission. YAESU FT-817nd | Manualzz

T

RANSMITTER

O

PERATION

FM T

RANSMISSION

Basic Setup/Operation

1. Press the / key so as to select the FM mode.

2. Press the microphone’s

PTT

switch, and speak into the microphone in a normal voice.

3. Release the PTT switch to return to the receive mode.

4. If you get reports that your modulation level is too high or too low, you may need to adjust the FM-mode microphone gain. The procedure is similar to that used on SSB:

Press the key momentarily, then rotate the knob, as needed, until Operating Function Row 9 [

PWR

,

MTR

] appears on the display, then press the (

MTR

) key to select the “Deviation” meter function (“ mod ” will appear at the right side of the “

MTR

” icon).

Press and hold in the key for one second to enter the Menu mode.

Rotate the knob to recall Menu #29 (

FM MIC

).

Increase or decrease the setting of the FM Mic Gain, depending on the level correction required, then press and hold the key to save the new setting.

Close the

PTT

switch, and while speaking into the microphone observe the meter indication; the proper setting of the FM Mic Gain will produce five “bars” of indication on voice peaks, slightly less on lower levels of speech input.

When done, press and hold in the key to save the new setting for the FM-mode microphone gain.

5. The VOX feature is operational during FM transmission. From Operating Function Row

10 [ VOX , BK , KYR

], press the (

VOX

) key to activate/deactivate VOX.

Repeater Operation

1. Press the key momentarily, then rotate the knob, as needed, until Operating

Function Row 4 [

RPT

,

REV

,

TON

] appears on the display.

2. Press the

(

RPT

) key to activate repeater operation. One press of the (

RPT

) key will have set the transceiver for “Minus Shift” operation. In this situation, you will observe the “

” indicator on the display. The transmitter frequency will be shifted down by a default value so as to access the repeater input frequency. If your repeater uses a positive shift (instead of negative), press the

(

RPT

) key again; the “

+

” indicator will replace the “ – ” indicator on the display.

3. If the default repeater shift is not appropriate for your area, it may be set independently for each band. To change the repeater shifts:

Press and hold the

(

RPT

) key for one second. This instantly recalls Menu #42

(

RPT SHFT

).

Rotate the knob to select the desired shift frequency.

When done, press and hold in the key for one second to save the new setting and exit to normal operation.

FT-817

ND

Operating Manual 33

T

RANSMITTER

O

PERATION

FM T

RANSMISSION

4. Press the

(

TON

) key to activate the CTCSS tone encoder, which provides a subaudible repeater access tone. One press of the

(

TON

) key will activate the CTCSS tone encoder. In this situation, you will observe the “ ” indicator on the display. If you press the

(

TON

) key repeatedly, you will observe “

” (CTCSS Encode/Decode), followed by “ ” (Digital Coded Squelch, Encode/Decode). One additional press will disable all repeater-access tone systems. See the next section for a discussion of DCS operation.

5. If the default repeater access tone are not appropriate for your area, it also may be set independently for each band. To change the repeater access tone:

Press and hold the

(

TON

) key for one second. This instantly recalls Menu #48

( TONE FREQ ).

Rotate the knob to select the desired CTCSS frequency.

When done, press and hold the key for one second so save the new setting and exit to normal operation.

6. Set the transceiver’s receiver to the repeater output (downlink) frequency.

7. Close the PTT switch and speak into the microphone. You will observe that the transmitted frequency has shifted according to the setting of the

(

RPT

) key.

8. Release the PTT switch to return to the Receive mode.

9. With repeater shift activated, you can temporarily reverse the transmit and receive frequencies by pressing the

(

REV

) key. The “

” icon will blink while “Reverse” shift is activated. Press the

(

REV

) key again to revert to the “Normal” shift direction.

10. When you are finished with repeater operation, you may wish to set the repeater shift to simplex by pressing the

(

RPT

) key, and disable the CTCSS or DCS tone by pressing the

(

TON

) key.

11. On many transceiver versions, the Automatic Repeater Shift (ARS) feature is enabled at the factory. This feature automatically activates the appropriate repeater shift when you are operating inside the designated 144 MHz or 430 MHz FM repeater sub-bands in your country. If you wish to change the settings for the ARS, use Menu #01 (

144 ARS

) or Menu #02 ( 430 ARS ) (see page 60).

If your local repeaters need a 1750-Hz burst tone for access (typically in Europe), press and hold in the front panel’s key to transmit the burst tone.

34 FT-817

ND

Operating Manual

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Key Features

  • Compact and portable design for convenient field operation
  • Wide operating frequency range, covering HF/VHF/UHF bands
  • Versatile operating modes, including SSB, CW, FM, AM, and digital modes
  • Built-in spectrum scope monitor for visual signal analysis
  • Extensive memory storage and scan options for quick and efficient channel access
  • Receiver accessories for improved signal reception, including clarifier, IF shift, and noise blanker
  • ARTSTM (Auto Range Transpond System) for automatic frequency coordination during simplex operation

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Frequently Answers and Questions

How do I connect the microphone to the transceiver?
Connect the microphone plug to the MIC connector on the front panel.
What is the operating voltage range of the transceiver?
The operating voltage range is 10.8 to 16.0 V DC.
Can I adjust the transmitter power output?
Yes, the transmitter power output can be adjusted in five levels.
What is the function of the clarifier?
The clarifier allows for precise adjustment of the receiver frequency to enhance signal intelligibility.
How do I set the operating mode?
Press the MODE button repeatedly to cycle through the available operating modes.

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