FLDigi - RTTY - Linux - IC-7300 - got no messages - need help to fix it

ds2k5 · January 31, 2025, 6:44am

Hello,
try to start with FLDigi

TRX: Icom IC_7300 (FW 1.42) connected by /dev/ttyUSB0
FLdigi: Version 4.1.23

TRX Settings:

Mode: RTTY

Menu → Set → Connectors

ACC/USB Output Select: AF
ACC/USB AF Output Level 85%
ACC/USB SQL OFF
ACC/USB BEEP/Speech OFF
ACC/USB IF Output Level 50%
ACC MOD Level 50%
USB MOD LEvel 85%
DATA OFF MOD MIC,ACC
DATA MOD USB
RTTY DECODE Baud Rate 19200
USB SEND/Keying →
USB Send RTS
USB Keying (CW) DTR
Inhibit Timer at USB Connection ON
RTT Port Function PTT INPUT+ SEND Output

CI →
Ci-V Baut Rate Auto
CI-V Address 94h
CI-V Transive ON
CI-V USB → Remote Transive Address: 00h
CI-V Output (for ANT) OFF
CI-V USB Port Unlick from [Remote]
CI-V USB Baud Rate 115200
CI-V USB Echo Back ON

FLDigi Settings:

OPMode → RTTY → RTTY-45

Did not recive Messages!

What did I wrong ?

If set IC-7300 to Mode: RTTY

Menu → Decode

I can see Messages on the Display of the IC-7300

Constrainted · January 31, 2025, 2:51pm

Are you using a Digirig Mobile?

73 Constrainted

ds2k5 · January 31, 2025, 3:06pm

Are you using a Digirig Mobile?

No - direct connect by USB without any other Hardware
USing USB SoundCard from IC-7300

Only PC + USB Cable and IC-7300

Constrainted · January 31, 2025, 3:32pm

Set “Use Hamlib” on Rig control config screen. Then, Initialize.

73 Constrainted

ds2k5 · January 31, 2025, 4:36pm

see only this… looks strange…

Constrainted · January 31, 2025, 8:11pm

The RTTY signals do not seem to be displayed on your fldigi waterfall. When you do get the signal there, the red cursor must be moved to the signal to get fldigi decode.

73 Constrainted

ds2k5 · January 31, 2025, 9:02pm

thanks I will try tomorrow if the Band is open again.

Constrainted · January 31, 2025, 11:07pm

You can confirm fldigi receive with CW from W1AW or sideband from WWV on many bands.

73 Constrainted

ds2k5 · February 1, 2025, 8:52pm

I found a FREQ that works:

But had no success to get anwser from W2QAU

Constrainted · February 1, 2025, 9:01pm

You can use a WebSDR to test your outgoing signal propagation.

73 Constrainted

Drew_Rinella · February 7, 2025, 2:14am

Why is your FLDIGI waterfall so narrow? Do you have a passband filter activated on your transceiver? If so, try turning it off to see more traffic.

ds2k5 · February 7, 2025, 6:59pm

Found it:

Device to USB-D

In FLidi: PKTUSB

now it works - did a test with a OM on 10m band

Thanks for your help @ALL