Re: [Drakelist] T4XB tune problem
Peter, you are probably outputting the IF frequency 5645 kHz (the carrier oscillator). That explains the strange setting of the RF TUNE and the high SWR on an 80m antenna. It could be that your band oscillator is not working. Do you get normal output on other bands? Steve Wedge, W1ES/4 Time flies like an arrow; fruit flies like a banana. All my computers have my signature with various pearls of wisdom appended thereto. From: Peter Ravn Sent: Sunday, August 25, 2013 12:49 PM To: Drakelist@zerobeat.net Subject: [Drakelist] T4XB tune problem When my T4XB is in tune mode, and the gain control is fully CCW, the meter reads 0.4 A. Turning the gain control CW has no effect on the reading. The RF control is also out of control. When I want maximum peak on 40 meters, the RF control has to be turned to 80 meters. Output is app. 40 W and SWR is very bad. The plate control can be dipped but ends in a completely other position than the usual one. The problem is the same in SSB and CW, and when the T4XB runs as a separate transmitter. The bias is 0.07A. Any help will be appreciated. Thanks. OZ8CTH, Peter ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] ac-4 supply
Looking for a top cover for a ac-4 supply. Cosmetics not important. 73 dale wt4t ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] T4XB tune problem
I had the same problem with a T4XB awhile back. The problem was a dirty wiper of the XTALS switch. Cleaned with DEOXIT and all was well. 73, Stew K3ND From: Steve Wedge w1es1...@triad.rr.com To: Peter Ravn fas...@privat.dk; Drakelist@zerobeat.net Sent: Monday, August 26, 2013 10:36 AM Subject: Re: [Drakelist] T4XB tune problem Peter, you are probably outputting the IF frequency 5645 kHz (the carrier oscillator). That explains the strange setting of the RF TUNE and the high SWR on an 80m antenna. It could be that your band oscillator is not working. Do you get normal output on other bands? Steve Wedge, W1ES/4 Time flies like an arrow; fruit flies like a banana. All my computers have my signature with various pearls of wisdom appended thereto. From: Peter Ravn Sent: Sunday, August 25, 2013 12:49 PM To: Drakelist@zerobeat.net Subject: [Drakelist] T4XB tune problem When my T4XB is in tune mode, and the gain control is fully CCW, the meter reads 0.4 A. Turning the gain control CW has no effect on the reading. The RF control is also out of control. When I want maximum peak on 40 meters, the RF control has to be turned to 80 meters. Output is app. 40 W and SWR is very bad. The plate control can be dipped but ends in a completely other position than the usual one. The problem is the same in SSB and CW, and when the T4XB runs as a separate transmitter. The bias is 0.07A. Any help will be appreciated. Thanks. OZ8CTH, Peter ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
Re: [Drakelist] T4XB tune problem
- Original Message - From: Steve Wedge w1es1...@triad.rr.com To: Peter Ravn fas...@privat.dk; Drakelist@zerobeat.net Sent: Monday, August 26, 2013 7:36 AM Subject: Re: [Drakelist] T4XB tune problem Peter, you are probably outputting the IF frequency 5645 kHz (the carrier oscillator). That explains the strange setting of the RF TUNE and the high SWR on an 80m antenna. It could be that your band oscillator is not working. Do you get normal output on other bands? Steve Wedge, W1ES/4 I think if there is any suspicion that this is happening it would be helpful to load the transmitter into a dummy load and use a general coverage receiver to see what is coming out. The load or the transmitter will leak enough signal to hear it. The receiver does not have to be anything special as long as you can get an approximate indication of where the output is. -- Richard Knoppow Los Angeles WB6KBL dickb...@ix.netcom.com ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
