Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]() "billcalley" wrote in message ups.com... Hi All, I have a Kenwood TS-530S, but I'm sure this question applies to most other tube rigs: Why is there even a TUNE setting on the MODE switch? I know that with this switch engaged the "input power to the final section is reduced to prevent tube damage during tune-up", but why not just adjust CAR (CAR LEVEL CONTROL) downward for this step, since CAR also controls "carrier level during CW operation". Is it simply a matter of convenience, or do these controls actually do somewhat different things? And while I'm on that subject of carrier level, I need to lower my 100 watts to about 10 watts. Is the best way to do this by simply lowering the CAR control? Does this technique give all the advantages, such as more protection to the finals (with a high VSWR) and generally longer tube life? Another quick question for anyone who is familiar with the Kenwood TS-530S with the 500Hz CW filter installed, but I noticed that unless I move IF-SHIFT counter-clockwise, the audio output is not centered on 800 Hz, but more like 1200 Hz or so. Is this normal for Kenwoods? Thanks for any help! -Bill Bill, Do you have the correct CW filter installed? Kenwood offered the C filter and the C-1 filter. The difference is the center frequency. I remember on my 930, there was a pitch control. Do you have one? If so, how is it set? 73, Ed, N5EI |
#2
![]() |
|||
|
|||
![]()
On Apr 15, 7:47 am, "Edward Feustel" wrote:
"billcalley" wrote in message ups.com... Hi All, I have a Kenwood TS-530S, but I'm sure this question applies to most other tube rigs: Why is there even a TUNE setting on the MODE switch? I know that with this switch engaged the "input power to the final section is reduced to prevent tube damage during tune-up", but why not just adjust CAR (CAR LEVEL CONTROL) downward for this step, since CAR also controls "carrier level during CW operation". Is it simply a matter of convenience, or do these controls actually do somewhat different things? And while I'm on that subject of carrier level, I need to lower my 100 watts to about 10 watts. Is the best way to do this by simply lowering the CAR control? Does this technique give all the advantages, such as more protection to the finals (with a high VSWR) and generally longer tube life? Another quick question for anyone who is familiar with the Kenwood TS-530S with the 500Hz CW filter installed, but I noticed that unless I move IF-SHIFT counter-clockwise, the audio output is not centered on 800 Hz, but more like 1200 Hz or so. Is this normal for Kenwoods? Thanks for any help! -Bill Bill, Do you have the correct CW filter installed? Kenwood offered the C filter and the C-1 filter. The difference is the center frequency. I remember on my 930, there was a pitch control. Do you have one? If so, how is it set? 73, Ed, N5EI- Hide quoted text - - Show quoted text - Hi Ed, Thanks for the response! Yes, I have the proper YK-88C filter installed. And it is not the actual CW pitch/tone that's off, but the filtered passband output into the rig's speakers. The audio output, unless the IF-SHIFT control is moved counter-clockwise to center it, has the CW signal at 800Hz, as it should be, but the 500Hz passband itself is not centered on it and extends too high from about 800 Hz to 1300 Hz... Best Regards, -Bill |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Question for Techs not upgrading to General question | Policy | |||
Question on RFI and tube vs newer rigs | Boatanchors | |||
kenwood/yaseu rigs ++ | Equipment | |||
kenwood/yaseu rigs ++ | Equipment | |||
kenwood/yaseu rigs ++ | Equipment |