Re: [Drakelist] T-4XB R4B PSK31
Hi, Bill. I used my 4B twins for PSK31 about 10 years or so ago when they were my only HF rig. They worked, but were not really frequency stable enough for best operation on digital modes. Even after letting them warm up for 30 minutes or so, the T-4XB would drift a bit - not a good thing with digital modes. I can provide additional detail if you'd like, but I'm not sure what questions you might have. 73, Jim KA9VHG On 4/22/2013 11:08 PM, Bill Ellis wrote: Does have any info on working PSK 31 and the B-line twins? Thanks, Bill Ellis, WB9CAC ___ 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] T-4XB R4B PSK31
Yep...works fine. I have run PSK31 and 125 along with many of the other available digi modes like JT65, Olivia, Feld-Hell, etc. Also myself and others here have run the daylights out of our Drakes on RTTY--they thrive on it! I used a homebrew, fully isolated pc interface working into the phone, mic, ptt lines on the drake. I typically would tune up per the manual for full power, then adjust the audio/rf drive gains for the amount of power I needed to run. Usually 25W or less out. Don't listen to anyone regarding insufficient stability. THe only thing I did was to add a digital freq readout to make it easier to get exactly on frequency but that isn't really a necessity. I now also use a Softrock Lite IF SDR adapter on my R4B...it is sweet. Let me know if you need any other infor--glad to help. Curt KU8L On 4/23/2013 12:08 AM, Bill Ellis wrote: Does have any info on working PSK 31 and the B-line twins? Thanks, Bill Ellis, WB9CAC ___ 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] T-4XB R4B PSK31
I suspect your drift experience may be a-typical Jim. One thing that is a bit annoying is the transceive zero vs different crystal characteristics in Rx and Tx. They are much better when they are the matched pair (Drake Color on crystal) blue, yellow, etc. On my A twins, I had different colors and until I added fans to both units, transceive was a small issue but I never found it to be a problem--even with PSK. FWIW Curt On 4/23/2013 7:24 AM, Jim Anderson wrote: Hi, Bill. I used my 4B twins for PSK31 about 10 years or so ago when they were my only HF rig. They worked, but were not really frequency stable enough for best operation on digital modes. Even after letting them warm up for 30 minutes or so, the T-4XB would drift a bit - not a good thing with digital modes. I can provide additional detail if you'd like, but I'm not sure what questions you might have. 73, Jim KA9VHG On 4/22/2013 11:08 PM, Bill Ellis wrote: Does have any info on working PSK 31 and the B-line twins? Thanks, Bill Ellis, WB9CAC ___ 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] T-4XB R4B PSK31
Hi, Curt. You could very well be right. I was also very new to HF operation and might have been overly sensitive to a comment during a QSO about drift. It could have been only a couple of Hz but I probably wouldn't have known any better. Hi 73, Jim KA9VHG On 04/23/2013 08:59 AM, Curt Nixon wrote: I suspect your drift experience may be a-typical Jim. One thing that is a bit annoying is the transceive zero vs different crystal characteristics in Rx and Tx. They are much better when they are the matched pair (Drake Color on crystal) blue, yellow, etc. On my A twins, I had different colors and until I added fans to both units, transceive was a small issue but I never found it to be a problem--even with PSK. FWIW Curt On 4/23/2013 7:24 AM, Jim Anderson wrote: Hi, Bill. I used my 4B twins for PSK31 about 10 years or so ago when they were my only HF rig. They worked, but were not really frequency stable enough for best operation on digital modes. Even after letting them warm up for 30 minutes or so, the T-4XB would drift a bit - not a good thing with digital modes. I can provide additional detail if you'd like, but I'm not sure what questions you might have. 73, Jim KA9VHG On 4/22/2013 11:08 PM, Bill Ellis wrote: Does have any info on working PSK 31 and the B-line twins? Thanks, Bill Ellis, WB9CAC ___ 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 ___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
[Drakelist] T-4XB R4B PSK31
Does have any info on working PSK 31 and the B-line twins? Thanks, Bill Ellis, WB9CAC___ Drakelist mailing list Drakelist@zerobeat.net http://mailman.zerobeat.net/mailman/listinfo/drakelist
