Hi Bob, Don't even START me on this topic!!! : >)
~73~ de Eddy VE3CUI - VE3XZ ********************************************************************************************************* On 2011-10-26, at 10:32 AM, Robert Fish wrote: > Hi Guys, > > I have been ignoring an issue with my T-4XC until recently. When I use the > R-4C PTO to control the receiver it seems to work fine. > When I use the T-4XC PTO to control the receiver I get sort of a chirpy, > jumping around of the cw signal I am trying to copy. Both units > work fine in transceive using the R-4C PTO, which is the way I have been > using them. But with the recent DX expeditions (T32C, TX7M) > running split, I have been having to use the C-line as separates to work > them. I have had some success working them, but heaven knows what my signal > sounds like. > > I have been putting off fixing this problem as I felt it was probably the PTO > and I haven't been in the mood for performing major surgery lately. > I decided to get off my arse and do something about it yesterday. So, I got > out the scope and took a look at the T-4XC PTO output while it was > controlling the R-4C. > It seems stable. So I looked at the Plate of V-8 with the scope, I have a > composite signal (PTO, Xtal Osc.) it looks solid as a rock. So then I looked > at the injection signal > right at the jack on the back of the T-4XC and once again, I can hear a cw > signal I tuned in on the R-4C jumping all over the place, while I'm looking > at a rock solid injection sig > leaving the T-4XC. I switch back to the R-4C PTO and the jumping around > stops, the receiver copies the same cw sig with stability. > > What am I missing here? It is hard to fix something when it seems like the > only evidence of a problem is coming out of the speaker. If I could find some > evidence of the problem > I could follow it to it's source. This could be operator error (probably is) > I only put about an hour in to this last night as I got called to dinner and > a man has to have priorities. > > I am going to dig in to it this morning, I will eventually find the problem, > but maybe you guys can save me some time. > > Oh........another clue: When I use the spot function, in CW mode, I get a > warbling sound in the R-4C instead of a solid cw tone when tuning in the > T-4XC sig with the receiver. It seems > sort of intermittant (it switches to a cw tone sometimes and then goes back > to warbling like you get in SSB mode with the spot function.) > > Thanks in advance, I hope this long winded post made sense. > > > Bob K6GGO > > > _______________________________________________ > Drakelist mailing list > Drakelist@zerobeat.net > http://mailman.zerobeat.net/mailman/listinfo/drakelist
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