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RADIO_APP_NOTES.md

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Running FLdigi with the Yaesu FT-817

Radio Configuration

Set Radio for Digital Mode Operation (SSB-Based AFSK)

  • Use a mDin6 cable without pin 6, Squelch connected (I wiggled pin 6 until it broke)
    • Looking into the male mDin 6 connector with the key on top, its the upper right hand pin
    • Verify this as it is easy to get it wrong
Setup "USER" defined digital mode

  • Please refer to your Yaesu manual "Digital Mode Operations (SSB-Based AFSK)"

  • Menu #24 DIG DISP: display shift

    • 0 Hz

  • Menu #25 DIG MIC: AFSK drive level

    • 61

  • Menu #26 DIG MODE: User defined digital mode

    • USER-U

  • Menu #27 DIG SHIFT: transceiver passband response

    • 0 Hz

RPi - ALSA Configuration

  • Run setalsa-ft817.sh which sets alsa config to the following:
    • Note that this selects the received signal on mDin6 pin 5, AFOUT
===== ALSA Controls for Radio Tansmit =====
LO Driver Gain  L:[-6.00dB]	R:[-6.00dB]
PCM	        L:[-16.50dB]	R:[-16.50dB]
DAC Playback PT	L:[PTM_P3]	R:[PTM_P3]
LO Playback CM	[Full Chip CM]

 ===== ALSA Controls for Radio Receive =====
ADC Level	L:[-2.00dB]	R:[-2.00dB]
IN1		L:[Off]		R:[Off]
IN2		L:[10 kOhm]	R:[10 kOhm]

  • PT = PowerTune

  • CM = Common Mode

  • Run alsa-show.sh to verify

FLdigi Configuration

  • There are some very good FLdigi instructions for the udrc here
    • These instructions differ for the DRAWS HAT:
      • FLdigi has already been downloaded & built on the DRAWS image
      • DRAWS swapped the PTT gpio settings for left & right connector compared to UDRC II.
  • Run FLdigi by using the main desktop menu (upper left corner of desktop) > Internet > Fldigi
  • These instructions are for FLdigi controlling the PTT with the RPi GPIO
    • RigCat or FlRig are not used.
Select Configure > Soundcard
  • Select the Devices tab:
    • Select PortAudio and deselect all others
    • The following assumes that the internal RPi sound device is not enabled
      • Select udrc: - (hw:0,0) for both Capture and Playback
Select Configure > Rig Control
Left  Channel PTT gpio is BCM 12
Right Channel PTT gpio is BCM 23
Select Configure > Sound Card > Audio > Right Channel
  • To select the Right Channel tab do the following:
    • Check the reverse left/right channels checkbox for both Transmit & Receive
  • To select the Left Channel do the following:
    • Clear the reverse left/right channels checkbox
Select Op Mode
  • ie for Olivia 8-250
    • Op Mode > Olivia > OL 8-250

For FLdigi do NOT set Radio for Packet (1200/9600 bps FM) Operation

Running packet apps with the Yaesu FT-817

Radio Options

Set Radio for Packet 1200/9600 bps FM Operations

  • Please refer to your Yaesu manual "Packet 1200/9600 bps FM Operations"

  • Menu #39 (PKT MIC) allows adjusting drive level.

  • Menu #40 (PKT RATE) to select AFOUT(1200 bps) or DISCOUT (9600 bps)

  • Note different connections are used for 1200 & 9600 (AFOUT & DISCOUT)

  • If you are having trouble connecting due to insufficient or excessive drive from the TNC to the FT-817

    • use Menu #39 (PKT MIC) to set the drive. for 1200/9600 BPS FM packet, Page 41
    • Depends on DIG MODE setting: RTTY, PSK31-L or -U, USER-L or -U
      • -L lower side band, -U upper side band
      • use Menu #25 (Dig MIC) to adjust DATA input level for PSK, Page 22

  • Use some "test" protocol to send out test tones and adjust the deviation by rotating the DIAL knob, which will vary the data input level to the FT-817's modulator. Remember to press and hold in the F key for one second when adjustments are completed, so as to save the new setting for Menu #39

RPi

  • ALSA settings
    • Use IN1_L IN1_R for 9600 baud (DISCOUT)
    • Use IN2_L IN2_R for 1200 baud or less (AFOUT)

ALSA settings for ICOM IC-7000

From the IC-7000 manual page 116

  • adjust the TX audio level (data in level) from the TNC as follows.
  • 0.4 Vp-p (0.2 Vrms): recommended level
  • 0.2-0.5 Vp-p (0.1-0.25 Vrms): acceptable level
  • When in packet mode route RX Audio to pin 4 DATA OUT (discriminator)
    • Select IN1 (L & R) 10 kOhm (or 20 & 40 kOhm) in alsamixer
  • While testing with FLdigi it was noticed that the tones where cleaner when routing through the discriminator.
  • The IC-7000 presents the received signal on both pin 4 DISCOUT & pin 5 AFOUT

From Winlink Programs group

IC-7100 (7200, 7300, 7410) keys but no power out

  • Are you in USB-D?

  • How are the Connectors set on the 7100 menus?

  • What are the Playback and Record levels for the 7100?

  • DATA MOD set to USB-D

  • CI-V Baud Rate set to 19,200

  • ACC/USB Output Select set to AF

  • ACC/USB AF Level set to 50% (initially, need to adjust this)

  • USB MOD Level set to 50% (initially, need to adjust)

RPi - ALSA Configuration

  • Run setalsa-ic7000.sh which sets alsa config to the following:
Transmit
  • ALSA control DAC Playback Power Tune set to PTM_P1
  • Same LO Drive Gain & PCM settings as Yaesu FT-817
Receive
  • Make sure the preamp is turned off.
    • P.AMP/ATT button to left of screen
  • Select received signal on mDin6 pin 4, DISCOUT
Summary
===== ALSA Controls for Radio Tansmit =====
LO Driver Gain  L:[-6.00dB]	R:[-6.00dB]
PCM	        L:[-16.50dB]	R:[-16.50dB]
DAC Playback PT	L:[PTM_P1]	R:[PTM_P1]
LO Playback CM	[Full Chip CM]

 ===== ALSA Controls for Radio Receive =====
ADC Level	L:[-2.00dB]	R:[-2.00dB]
IN1		L:[10 kOhm]	R:[10 kOhm]
IN2		L:[Off]		R:[Off]

ALSA settings for Yaesu FT-7900R

From RaspberryPi-4-HamRadio

I use a FT-7900 with my TNC-Pi9k6.

  • You need to use the 6 pin mini-DIN connector and not the DB-9.
  • That way, you don't need to change anything when switching between 1200 and 9600 baud except the settings on the TNC and on the radio.
  • No switching jumpers or cables.

The pin-out you mention on the PiGate site is just for radios that don't have the built-in packet port. You could set it up through the mic and headset ports, but then you are limited to 1200 baud only.