Thanks Gus. I went ahead and bought a new switch and it works beautifully. I'm told these simple switches go afutz quite often. I'll just look at it as a cost of having a hobby.
JP > On 09/19/2022 2:55 PM Gus Bernard via BVARC <[email protected]> wrote: > > > JP, > > If the system worked when you bypassed the switch (using the same > cables), then the cables are fine. Before trashing the switch, try moving > the cable to a different port on the switch. Sometimes, an individual port > will go bad; and if you find a bad port, try cleaning the contacts with a > contact cleaner. > > Brian, > > Shielding a cable works if the socket/jack of the device it is connected > to is also grounded (on at least one end of the cable). However, in some > configurations, you might need to worry about ground loops if the socket/jack > of devices on both ends of the cable are BOTH grounded BUT NOT to the same > ground potential. > > This could especially be a problem with USB cables between computer and > radio. For EMI issues, sometimes it's better to use toroidal or clamp-on > ferrite chokes at both ends, instead. I had a problem with my IC7200 that > was solved only after wrapping both ends of the cable 3 times around Mix 31 > clamp-on chokes. In very bad cases of interference (like RF in the shack), a > USB isolator might be needed. > > Gus, K5GMB > > > On Sun, Sep 18, 2022 at 9:45 AM JP Pritchard via BVARC <[email protected] > mailto:[email protected] > wrote: > > > > A little help please! > > > > I normally connect my Anan 7000 transceiver to an eight port switch > > where it connects with the computer that controls the transceiver. It has > > worked perfectly for months. But I am now seeing error messages indicating > > short intermittent sequence errors (dropped packets I suppose you would > > call it) between the radio and the computer. As you would expect, the audio > > drops out when the errors occur. > > > > First step in my process of elimination was to circomvent the > > switch and connect the radio directly to the computer. That killed all > > sequence errors and all worked as it should. Next step in the process was > > to reconnect the computer and the radio to the switch, but remove the > > ethernet surge protector from the run between the switch and the radio. > > That made no difference and the errors resumed. Now I figure it's got to be > > bad ethernet cable or the switch needs to be replaced. > > > > Any thoughts on this from my computer savvy ham friends? > > > > 73, JP, K5JPP > > ________________________________________________ > > Brazos Valley Amateur Radio Club > > > > BVARC mailing list > > [email protected] mailto:[email protected] > > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > > Publicly available archives are available here: > > https://www.mail-archive.com/[email protected]/ > > > > > ________________________________________________ > Brazos Valley Amateur Radio Club > > BVARC mailing list > [email protected] > http://mail.bvarc.org/mailman/listinfo/bvarc_bvarc.org > Publicly available archives are available here: > https://www.mail-archive.com/[email protected]/ >
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