Not sure what I’m doing wrong. I’ve tried both windows and linux wfview and get the same issue. I am not using any USB connecitons to the radio. I’m only using an ethernet connection to the radio. I can connect to the 7300MK2 with the wfview program over the LAN. I have audio from the 7400MK2. When I transmit they receiving side hears the first half a syllable and then nothing else. I have the MOD set to LAN and the slider at 50%. I’ve tried multiple other settings and norhing gets the transmit audio working correctly. Has anyone been able to get this working with the 7300MK2? Please help.
The TX Audio shows a good level as I talk into the microphone even when not transmitting. The ALC Meter doesn’t move at all no matter what I do. The microphone is a computer one that plugs into the laptop 3.5 mm jack. I’ve also tried the internal microphone that’s built into the laptop.
Does the program seem to otherwise work correctly? There are many interesting things in your log. Does the radio identify in the bottom-right corner as the correct model number?
The bottom right corner shows 7300MK2. The very top middle shows IC-7300MK2 – wfview. As far as I can tell everything else works fine except the transmit audio.
No VPN. It is all local to the house. The 7300MK2 is connected by ethernet cable to a port on the router. The laptop is connected to the router by wifi. Nothing is going out over the internet. I can try shutting the internet off completely to make sure. I have tried the latest windows version on one laptop and the latest version for ubuntu linux on another laptop.
Wfview is incredibly demanding on wireless networks, often resulting in 200+ UDP packets every second. This can easily overwhelm most domestic wireless access points. This is the design of the Icom protocol, so there isn’t much we can do to avoid it. Try a lower sample rate (16 kHz is still perfectly usable for SSB audio and results in a 3x reduction in audio packets. Also worth using the Opus codec if using wfview server, as that is much more efficient than the PCM/uLaw modes offered by default.
It is worth trying a wired connection to your laptop if possible. As a general rule of thumb, packet retransmissions are almost always caused by the network not being able to keep up. I have had more success with ‘enterprise’ access points from Cisco/HP etc when using wfview over wifi.
I’ll try those suggestions when I can. Have to be away from home today. I also found the following when searching on the internet. Do you think that is correct?
LAN setup on the IC-7300MK2 does not support transmit audio.
While the IC-7300MK2 allows for network-based radio control (CI-V) and audio reception via its LAN port, transmit audio is restricted to the USB connection.
Receive Audio: Can be routed through the LAN interface for remote monitoring.
Transmit Audio: Must be sent via the USB Audio Codec driver. The radio’s menu settings (SET > Connectors) do not provide an option to output microphone audio over the LAN cable.
To resolve the issue, ensure the USB cable is connected for bidirectional audio while the LAN cable handles remote control and receive audio if desired.
As the old saying goes, don’t believe everything you read on the Internet! You can absolutely select the ‘MOD SRC’ to LAN, but as none of the core team have an IC-7300MK2 yet, we haven’t personally validated every setting. We have had user reports of this working though. At worse, double-check that LAN is selected on the radio itself.
Read the actual manual if you have any doubts. There’s a reason artificial intelligence is called “artificial”…
Anyway, back on topic. You might want to do a full radio reset if you are still seeing zero output. I don’t usually recommend this. But my understanding is that you have:
Verified TxAudio is metering
Used the radio’s menu to select “LAN” as the transmit mod source
Used the radio’s menu to check that the LAN level is turned up at least 50%
Tried a purely Ethernet setup (ie, eliminate the wifi issue)
If you’ve done all that, then a radio reset might be the best thing to try next. It’ll be annoying but it may do the trick.
I tried the full radio reset and all of the other suggestions. Still wasn’t working. I prayed too. I finally realized it did work on the 28 Mhz (10 meter) band but not on the lower frequency bands. On 10 meters there were no error messages in the log about missing Civ packets like on the other bands. I came to my mind maybe the ethernet cable was being affected by the lower frequencies. It was a very long cable reaching to my router and maybe not shielded very well. I bought a wifi range extender with an ethernet port that I could put near the 7300mk2 and use a better shorted ethernet cable. That appears to have fixed the problem and I can transmit audio now with no issues. I believe God gave me the solution so I give Him all the credit. Thanks everyone for all your help and suggestions.
Wow, glad you found that solution! We have seen similar issues with cheap USB cables picking up RF and causing havoc on transmit. That it worked on 10M was a good clue, we will keep that in mind here for the next person with a similar issue.