I would recommend changing the baud rate down to 4800 or 9600 and set the polling rate to 1 second and see what happens.? With the small amount of data that is transfered for each poll.there really isn't a need for those faster baud rates? In my experience, especially with the USB to Serial converters, when using 8 bits, no parity and 1 stop bit, and no handshaking, baud rates above 9600 can become problematic though those converter drivers.?

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Jeff K. Steinkamp (N7YG)
Tucson, AZ
Scud Missile Coordinates
N32.2319 W110.8477

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Hi All,

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I have?a 7610 here myself and can't hear anything like what Jim describes.? Our software just sends the poll rig command to Windows, which routes it to the selected com port and then listens for a response.??

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?I am by?no?means?a?hardware guy, so I really don't have?any insights on why that?would be occurring.??If anyone has any insights into Jim's question I would be grateful for your reply.

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Thanks in advance!

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73, Scott

N3FJP

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开云体育 the Amateur Radio community with contesting and general logging software since 1997.

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1 Peter 3 vs 15: Always be prepared to give an answer to everyone who asks you to give . But do this with gentleness and respect...

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On Sunday, May 11, 2025 at 12:45:15 PM EDT, Jim W1WIU via groups.io <jimg158@...> wrote:

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I just upgrade from an IC 7600 to an IC7610. Using the same LCU3-I-USB cable, Win 11, and downloaded the latest driver software.

I just noticed that I can hear a click and see a "blip" on the Spectrum Scope when I hit the PPT in SSB mode that is in sync with the polling rate. If I change the rate, the blip also changes. This only happens in SSB.

The audio blip is the same at 1 watt and 100 watts.? The blip on the Spectrum scope also does not increase as power goes up.

I'm polling at 19.2 and .500 sec.?

Any ideas as to cause ???

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