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manual de rpadio amador ft849r, Esquemas de Física

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Tipologia: Esquemas

2025

Compartilhado em 05/07/2025

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HF/50 MHz TRANSCEIVER
FT-891
Advance Manual
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HF/50 MHz TRANSCEIVER

FT-

Advance Manual

Contents

  • CW Mode Operation - (and Straight Key Emulation) Operation Setup for Straight Key
    • Using the Built-in Electronic Keyer
    • Adjusting the keyer speed
    • Full Break-in (QSK) Operation.................................
    • Setting the Keyer Weight (Dot/Dash) Ratio
    • Reversing the Keyer Polarity
    • Selecting the Keyer Operating Mode.......................
    • CW Delay Time Setting
    • CW Pitch Adjustment
    • CW Spotting (Zero-Beating)
      • Using the Auto Zeroing System
      • Using the SPOT System
    • Audio Peak Filter
    • Contest Memory Keyer ...........................................
      • Message Memory ................................................
      • Text Memory
      • Contest Number Programming
      • Decrementing the Contest Number
      • Transmitting in the Beacon Mode
  • FM Mode Operation
    • Basic Operation
    • Repeater Operation
    • Tone Squelch Operation
    • DCS Operation
  • Interference Rejection
    • CONTOUR Control Operation - (SSB/CW/RTTY/DATA Modes) WIDTH (IF DSP Bandwidth) Tuning
      • Using IF SHIFT and WIDTH Together
    • NARROW (NAR) One-Touch IF Filter Selection.... - (SSB/CW/RTTY/DATA/AM Modes) IF NOTCH Filter Operation
    • Digital Noise Reduction (DNR) Operation
    • Digital NOTCH Filter (DNF) Operation
  • Tools for Comfortable and Effective Reception
    • RF Gain (SSB/CW/AM Modes)
    • ATT (Attenuator)
    • IPO (Intercept Point Optimization)
    • AGC (Automatic Gain Control)
    • Adjustable Receiver Audio Filter............................
  • Enhancing Transmit Signal Quality
    • Mic Gain
    • Speech Processor (SSB Mode)............................. - (SSB/AM mode).... Parametric Microphone Equalizer
      • Setup of the Parametric Microphone Equalizer....
      • Activating the Parametric Microphone Equalizer - (SSB Mode) Adjusting the SSB Transmitted Bandwidth
  • Transmitter Convenience Features.......................
    • Voice Memory (SSB/AM modes)
      • Voice Memory Operation
        • TX/RX Switching using Voice Control) VOX (SSB/AM/FM Modes: Automatic
    • MONITOR (SSB/CW/AM modes) - Split Operation Using the TX Clarifier - Split-Frequency Operation..................................... - Quick Split Operation - Memory Operation - Checking a Memory Channel Status - Memory Tune (MT) operation - Labeling Memories - Displaying the memory tag - Memory Groups - Memory Group Assignment - Choosing the Desired Memory Group - 5167.5 kHz (U.S. Version Only) Operation on Alaska Emergency Frequency: - Scanning Operation - Scan Resume Options........................................... - PMS (Programmable Memory Scanning) - Miscellaneous Setting - Beep Level............................................................. - TOT (Time-Out Timer) - APO (Automatic Power Off) - FAN Control - Meter Peak Hold - POP-UP Menu - Key Lamp Dimmer - TX/BUSY Indicator Dimmer - RTTY (Radio Teletype) Operation - Communications device Example of Connecting RTTY - Connecting to the TU (Terminal Unit) - Connecting to your Computer - DATA (PSK) Operation - Example of DATA Communications device............ - CONTESTIA, RTTY etc.) DATA-AFSK (PSK, OLIVIA, - CONTESTIA, RTTY etc.) DATA MODE (PSK, OLIVIA, - Menu Mode - Optional FH-2 Remote Control Switches - Optional MH-36E8J Microphone Switches - FC-50 External Automatic Antenna Tuner - Interconnections to FT-891 - Setup the FT-891 - Operation - (for Wire Antenna) FC-40 External Automatic Antenna Tuner - Interconnections to FT-891 - Setup the FT-891 - Operation - (ATAS-120A) Operation Auto Active-Tuning Antenna System - Interconnections to FT-891 - Setup the FT-891 - Tuning Operation - Manual Tuning ...................................................... - VL-1000 Linear Amplifier Interconnections ........ - Index

Using the Built-in Electronic Keyer

Before starting, connect the cable from your keyer paddle to the rear panel KEY jack.

  1. Press and hold the [ BAND ( MODE )] key for one second. The “MODE SELECT” screen will appear in the display.
  2. Rotate the DIAL knob to select the “CW” mode.
  3. Press the [ F ] key repeatedly to find the “CW SETTING” list screen.
  4. Rotate the MULTI function knob to select “BK-IN”.
  5. Press the MULTI function knob to engage the “break-in” system.
  6. Rotate the MULTI function knob to select “KEYER”.
  7. Press the MULTI function knob to engage the built-in Electronic Keyer.
  8. Press and hold the [ F ] key for one second to exit the “CW SETTING” list screen and resume normal operation.
  9. When the keyer paddle is pressed, the transmitter will automatically be engaged.
  10. When the paddle is released, the receiver audio will return, after a brief delay. r The CW sidetone audio level may be adjusted by setting “MONITOR” (see page 47). r To enable the keying operation in LSB/ USB mode and send the CW signal without switching to CW mode, change Menu item “ 07-06 [ CW AUTO MODE ]”. r The same frequency may be displayed when switching between SSB mode and CW mode by setting Menu item “ 07- [ CW FREQ DISPLAY ]”. r By connecting the FT-891 to a computer, CW can be operated using free or commercially available software and setting Menu item “ 07-12 [ PC KEYING ]”.

KEY Jack

DOT DASH COMMON

DOT DASH COMMON

Adjusting the keyer speed

The keyer speed can be adjusted via the “CW SETTING” list screen.

  1. Press the [ F ] key repeatedly to find the “CW SETTING” list screen.
  2. Rotate the MULTI function knob to select “SPEED”.
  3. Press the MULTI function knob, the keying speed pop-up screen will appear.
  4. Rotate the MULTI function knob to set the desired sending speed (4 - 60 WPM). Default: 20 WPM
  5. Press the MULTI function knob, then press and hold the [ F ] key for one second to exit the “CW SETTING” list screen and resume normal operation. r Keyer speed function may be assigned to the [A], [B] or [C] key. Refer to “Changing the function assigned to the [A]/[B]/[C] keys” in the FT-891 Operating Manual.

Full Break-in (QSK) Operation

As shipped from the factory, the FT-891 TX/RX system for CW is configured for “Semi- break-in” operation. However, this setup may be changed to full break-in (QSK) operation by setting Menu item “ 07-08 [ CW BK-IN TYPE ]”. With full break-in QSK, the TX/RX switching is quick enough to hear incoming signals in the spaces between the dots and dashes of your transmission.

  1. Press and hold in the [ F ] key for one second to activate the Menu mode.
  2. Rotate the MULTI function knob to select Menu Mode “ 07-08 [ CW BK-IN TYPE ]”.
  3. Press the MULTI function knob, and then rotate it to set this menu item to “FULL”.
  4. When the adjustment is satisfactory, press the MULTI function knob.
  5. Press the [ F ] key to save the new setting and exit the Menu mode to normal opera- tion.

Selecting the Keyer Operating Mode

The configuration of the Electronic Keyer may be customized independently for the rear panel KEY jack of the FT-891. This permits utilization of Automatic Character Spacing (ACS), if desired.

  1. Press and hold in the [ F ] key for one second to activate the Menu mode.
  2. Rotate the MULTI function knob to select Menu Mode “ 04-01 [ KEYER TYPE ]”.
  3. Press the MULTI function knob, and then ro- tate it to set the keyer to the desired mode. The available selections are: OFF: The built-in Electronic Key- er is turned off (“straight key” mode). BUG: Dots will be generated au- tomatically by the keyer, but dashes must be sent manually. ELEKEY-A: A code elements (“Dot” or “Dash”) are automatically transmitted upon pressing ei- ther side of the paddle.

Morse “E” & “T”

Morse “E” & “T”

ACS OFF

ACS ON

Inter-character Spacing too short

ELEKEY-B: Pressing both sides of the paddle transmits the currently generated “Dash” followed by the “Dot” (or reverse order). ELEKEY-Y: Pressing both sides of the paddle transmits the currently generated “Dash” followed by the “Dot” (or reverse order). While transmitting the “Dash”, the first transmitted “Dot” will not be stored. ACS: Same as “ELEKEY” except that the spacing between characters is pre- cisely set by the keyer to be the same length as a dash (three dots in length). Default: ELEKEY-B

  1. When the Menu selection is satisfactory, press the MULTI function knob.
  2. Press the [ F ] key to save the new setting and exit the Menu mode to normal operation.

CW Delay Time Setting

During semi-break-in (not QSK) operation, the hang time of the transmitter, after you have finished sending, may be adjusted to a comfortable value consistent with your sending speed. This is the functional equivalent of the “VOX Delay” adjustment used on voice modes, and the delay may be varied anywhere between 30 msec and 3 seconds via Menu item “ 07-09 [ CW BK-IN DELAY ]”.

  1. Press and hold in the [ F ] key for one second to activate the Menu mode.
  2. Rotate the MULTI function knob to select Menu Mode “ 07-09 [ CW BK-IN DELAY ]”.
  3. Press the MULTI function knob, and then rotate it to adjust the hang time (30 - 3000 msec). Default: 200 msec
  4. When the adjustment is satisfactory, press the MULTI function knob.
  5. Press the [ F ] key to save the new setting and exit the Menu mode to normal operation.

CW Pitch Adjustment

The center frequency of the receiver passband may be adjusted to the preferred CW tone. The pitch of the CW carrier offset may be varied between 300 Hz and 1050 Hz, in 10 Hz steps.

  1. Press the [ F ] key repeatedly to find the “CW SETTING” list screen.
  2. Rotate the MULTI function knob to select “PITCH”.
  3. Press the MULTI function knob, the PITCH frequency pop-up screen will appear.
  4. Rotate the MULTI function knob to adjust the PITCH (300 - 1050 Hz). Default: 700 Hz
  5. Press the MULTI function knob, then press and hold the [ F ] key for one second to exit the “CW SETTING” list screen and resume normal operation. r CW Pitch function may be assigned to the [A], [B] or [C] key. Refer to “Changing the function assigned to the [A]/[B]/[C] keys” in the FT-891 Operating Manual. CW Pitch: If the receiver is tuned to an exact “zero beat” on an incoming CW signal, you could not copy it (“Zero beat” implies a 0 Hz tone). Therefore, the receiver is offset several hundred Hz (typically), to produce a beat tone that can be heard. The BFO offset associated with this tuning (that produces the comfortable audio tone) is called the CW Pitch.

r The displayed frequency on the CW mode normally reflects the “zero beat” frequency of the offset carrier. That is, when receiving a signal at 14.100.00 MHz with a 700 Hz offset, the “zero beat” frequency of that CW carrier would be 14.100.70 MHz; which is what the FT-891 displays, by default. However, the display may be changed to be identical to what would be seen when listening on the USB mode, by using Menu item “ 07-11 [ CW FREQ DISPLAY ]” and setting it to “FREQ” instead of the default “PITCH” setting.

Audio Peak Filter

  1. Press the [ F ] key repeatedly to find the “CW SETTING” list screen.
  2. Rotate the MULTI function knob to select “APF”.
  3. Press the MULTI function knob, then rotate it to set the “APF” action to a comfortable level (-250 - +250 Hz). Default: +250 Hz r The APF bandwidth can be selected from NARROW/MEDIUM/WIDE via the Menu item “ 12-01 [ APF WIDTH ]”.
  4. To cancel the APF action, press the MULTI function knob, then press and hold the [ F ] key for one second to exit the “CW SET- TING” list screen and resume normal oper- ation.

r The APF may only be activated while the transceiver is in CW mode. r Audio Peak Filter function may be assigned to the [A], [B] or [C] key. Refer to “Changing the function assigned to the [A]/[B]/[C] keys” in the FT-891 Operating Manual.

Contest Memory Keyer

The CW message capability of the FT-891 may be utilized from the Front Control Panel, or the optional FH-2 Remote Control Keypad, which plugs into the rear panel REM/ALC jack.

Message Memory

Five CW memory channels, capable of retaining 50 characters each, are provided (the CW memory uses the PARIS standard for characters and word length).

Example: CQ CQ CQ DE W6DXC K (19 characters) ─ • ─ • ─ ─ • ─ ─ • ─ • ─ ─ • ─ ─ • ─ • ─ ─ • ─ ─ • • • • ─ ─ ─ • • • • ─ • • ─ • • ─ ─ • ─ • ─ • ─ (C) (Q) (C) (Q) (C) (Q) (D) (E) (W) (6) (D) (X) (C) (K)

Storing a CW Message into Memory using a Keyer Paddle

  1. First, set the message entry method to key- er entry. To activate the Menu mode, press and hold the [ F ] key in for one second.
  2. Rotate the MULTI function knob to select the CW Memory Register into which you wish to store the message; for now, we are just setting the message entry technique to (Keyer entry). “ 04-07 [ CW MEMORY 1 ]” “ 04-08 [ CW MEMORY 2 ]” “ 04-09 [ CW MEMORY 3 ]” “ 04-10 [ CW MEMORY 4 ]” “ 04-11 [ CW MEMORY 5 ]”
  3. Press the MULTI function knob briefly, and then rotate it to set the selected CW Mem- ory Register to “MESSAGE”. If you want to use a keyer paddle for message entry on all five memories, set Menu items #04-07 to #04-11 to “MESSAGE”.
  4. Press the MULTI function knob to save the new setting.
  5. Press the [ F ] key to exit to normal operation.

r PARIS Word Length: By convention among CW and Amateur operators (utilized by ARRL and others), the length of one “word” of CW is defined as the length of the Morse Code characters spelling the word “PARIS”. This character (dot/dash/space) length is used for the specific definition of code speed in “words” per minute.

Message Memory Programming with the Optional FH-2 (Using the Keyer Paddle)

  1. Set the operating mode to CW.
  2. Set the “BK-IN” feature to “OFF”.
  3. Turn the internal Electronic Keyer “ON”.
  4. Press the [ MEM ] key on the FH-2. A blinking “REC” icon will appear in the display.
  5. Press any of the FH-2 keys numbered [ 1 ] through [ 5 ] to begin the memory stor- age process, and the “REC” icon will glow steadily.
  6. Send the desired message using the keyer paddle. NOTE: If you do not start keying within ten seconds, the memory storage pro- cess will be canceled.
  7. Press the [ MEM ] key on the FH-2 once more at the end of your message. Up to 50 characters may be stored in each of the five memories. NOTE: Care must be exercised when sending to ensure that the spaces between letters and words are ac- curately done; if the timing is off, the spacing may not come out right in the stored message. For ease in setting up the keyer memories, we recommend setting Menu item “ 04- 01 [ KEYER TYPE ]” to “ACS” (Au- tomatic Character Spacing)^ while programming the keyer memories.

Checking the CW Memory Contents from the FT-891 Front Control Panel

  1. Set the operating mode to CW.
  2. Set the “BK-IN” feature to “OFF”.
  3. Press the [ F ] key to find the “FUNCTION-1” list screen.
  4. Rotate the MULTI function knob to select “MON”.
  5. Press the MULTI function knob, the Monitor level pop-up screen will appear.
  6. Rotate the MULTI function knob to set the Monitor volume level (0 - 100).
  7. Press the MULTI function knob or the [ F ] key.
  8. Press the [ F ] key to find the “REC SET- TING” list screen. NOTE: This screen may be enabled/ disabled via Menu Mode “ 05- [ REC SETTING ]”.
  9. Rotate the MULTI function knob to select a memory [ CH1 ] - [ CH5 ] that was previously recorded.
  10. Press the MULTI function knob to hear the CW message played in the sidetone mon- itor. No RF energy will be transmitted.
  11. Press and hold the [ F ] key for one second to exit the “REC SETTING” list screen and resume normal operation.

Playback the CW Message On-The-Air using the FT-891 Display Control Panel

  1. Set the operating mode to CW.
  2. Set the “BK-IN” feature to “ON”.
  3. Press the [ F ] key to find the “REC SET- TING” list screen. NOTE: This screen may be enabled/ disabled via Menu Mode “ 05- [ REC SETTING ]”.
  4. Rotate the MULTI function knob to select a previously recorded CW memory [ CH1 ] - [ CH5 ].
  5. Press the MULTI function knob, the CW message programmed in the selected Mem- ory Register will be transmitted on the air.
  6. Press and hold the [ F ] key for one second to exit the “REC SETTING” list screen and resume normal operation.

Playback the CW Message On-The-Air using the Optional FH-

  1. Set the operating mode to CW.
  2. Set the “BK-IN” feature to “ON”.
  3. Press the FH-2 [ CH1 ] - [ CH5 ] key, depend- ing on which CW Memory Register mes- sage you wish to transmit. The programmed message will be transmitted on the air.

Text Memory

The five channels of CW message memory (up to 50 characters each) may also be programmed using a text-entry technique. This method is somewhat slower than sending the message directly from the keyer paddle, but accuracy of character spacing is ensured. Be sure to enter the character “}” at the end of the text message.

Example 1: CQ CQ CQ DE W6DXC K} (20 characters)

The sequential Contest Number (“Count up”) feature is another powerful feature that may be utilized within the CW Memory Keyer by entering the # symbol.

Example 2: 599 10 200 # K} (15 characters)

Text Memory Storage

  1. Press and hold in the [ F ] key for one second to activate the Menu mode.
  2. First, set the message entry method to Text Entry. Rotate the MULTI function knob to select the CW Memory Register into which you wish to store the message using the Text Entry method. “ 04-07 [ CW MEMORY 1 ]” “ 04-08 [ CW MEMORY 2 ]” “ 04-09 [ CW MEMORY 3 ]” “ 04-10 [ CW MEMORY 4 ]” “ 04-11 [ CW MEMORY 5 ]”
  3. Press the MULTI function knob, and then rotate it to set the selected CW Memory Register to “TEXT”. If you want to use text message entry on all memories, set all five Menu items (#04-07 to #04-11) to “TEXT”.
  4. Press the MULTI function knob to save the new setting.
  5. Press the [ F ] key to exit to normal operation.

r The following texts are programmed to MEMORY 4 and MEMORY 5 as the factory default: MEMORY 4: DE FT-891 K} MEMORY 5: R 5NN K}

Text Message Programming with the Optional FH-

  1. Set the operating mode to CW.
  2. Press the [ MEM ] key on the FH-2. A blinking “REC” icon will appear in the display.
  3. Press any of the FH-2 keys numbered [ 1 ] through [ 5 ], to select the desired CW Mem- ory Register that you wish to program with text.
  4. Press the [ MEM ] key on the FH-2. The text input screen will appear.
  5. Rotate the MULTI function knob to select the letters, numbers, or symbols of the de- sired label, then press the MULTI function knob.
  6. Press the MULTI function knob.
  7. Repeat step 5 and 6 to program the remaining letters, numbers, or symbols of the desired text. Up to 50 characters may be stored in each of the five memories. r Rotate the MULTI function knob to set the cursor position and press the B key to erase and input characters.
  8. When the message is complete, add the “}” character at the end to signify the termi- nation of the message.
  9. When the text entry is complete, press the B key.
  10. Press and hold the FH-2 [ MEM ] key for one second to exit the text input screen and resume normal operation.

Checking the CW Memory Contents from the FT-891 Front Control Panel

  1. Set the operating mode to CW.
  2. Set the “BK-IN” feature to “OFF”.
  3. Press the [ F ] key repeatedly, to find the “FUNCTION-1” list screen.
  4. Rotate the MULTI function knob to select “MON”.
  5. Press the MULTI function knob, the Monitor level pop-up screen will appear.
  6. Rotate the MULTI function knob to set the Monitor volume level (0 - 100).
  7. Press the MULTI function knob or the [ F ] key.
  8. Press the [ F ] key repeatedly, to find the “REC SETTING” list screen. NOTE: This screen may be enabled/ disabled via Menu Mode “ 05- [ REC SETTING ]”.
  9. Rotate the MULTI function knob to select a memory [ CH1 ] - [ CH5 ] that was previously recorded.
  10. Press the MULTI function knob to hear the CW message played in the sidetone mon- itor. No RF energy will be transmitted.
  11. Press and hold the [ F ] key for one second to exit the “REC SETTING” list screen and resume normal operation.