Steve et. al. Well, I am going learn not to propose a public hypothesis based on reading an email. ;>) After testing in the lab, there is no glitch whatsoever when switching Tune on and off. I set the spectrum analyzer to 0 Hz span, which makes it able to catch the power of real time glitches. There were none at all. It was perfect.
Please disregard my earlier speculation as to the faster TR times causing a problem with spikes on the transmitter. I was simply wrong. However, we will definitely look further into the ALC overshoot reports. I did some initial measurements but they are inconclusive so far. Regards, Gerald Gerald Youngblood, K5SDR President and CEO FlexRadio Systems(TM) 13091 Pond Springs Road, #250 Austin, TX 78729 Phone: 512-535-4713 Ext. 202 Email: ger...@flexradio.com Web: www.flexradio.com <http://www.flex-radio.com/> Tune In Excitement (TM) PowerSDR(TM) is a trademark of FlexRadio Systems On Thu, Mar 3, 2011 at 8:20 AM, Gerald Youngblood <ger...@flexradio.com>wrote: > Steve, et. al. > > We significantly decreased TR transition times in firmware in order to > deliver the major CW timing improvements in 2.0.19 RC1. It sounds like we > need to take another look to see if that speed improvement is causing a > transition glitch on voice modes. I will meet with the engineering team to > discuss a test and resolution methodology. > > We will probably want to get a small group of testers to help get to the > bottom of the problem without taking up too much reflector bandwidth. If > you or others who have good test setups would like to help, please send me a > private email. > > Thanks, > Gerald > > > Gerald Youngblood, K5SDR > President and CEO > FlexRadio Systems(TM) > 13091 Pond Springs Road, #250 > Austin, TX 78729 > Phone: 512-535-4713 Ext. 202 > Email: ger...@flexradio.com > Web: www.flexradio.com <http://www.flex-radio.com/> > > Tune In Excitement (TM) > > PowerSDR(TM) is a trademark of FlexRadio Systems > > > On Wed, Mar 2, 2011 at 3:37 PM, Steve Tripp (K1IIG-1) < > stephen.tr...@snet.net> wrote: > >> Using my FK5 has frequently causes my Acom2000a to false off. It first >> occurred when running 1000w in USB but now is happening more frequently >> with USB carefully adjusted so ALC never peaks 0 dbm and the same with the >> leveler. I can easily duplicate this problem when in the tune position, >> whereby the amp ALWAYS drops out when tune drive power is 25w or more and >> even when tune power is down to 10w. I normally have the tune set to 10w. >> Please note, I have NEVER dropped the amp using CW driving the ACOM to full >> 1500w with harsh testing. None of my other transceivers, including my >> PRO3, have ever caused the amp to drop out in any mode. Because the amp >> consistently drops out when releasing the tune, I wonder if the Flex is >> sending a full power spike to the amp causing a drop out. The amp NEVER >> dropping out in CW confuses the issue. >> >> Finally, I have had a 3000 and now the 5000 e/w V/U and never experienced >> this or other problems while the 3000 was running version 1.18. I am not >> convinced the Flex 5000 is a reliable radio. This is my first post and do >> not consider myself a whiner but indeed I have struggled with the Flex 5000. >> >> Steve >> K1IIG >> _______________________________________________ >> FlexRadio Systems Mailing List >> FlexRadio@flex-radio.biz >> http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz >> Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ >> Knowledge Base: http://kc.flexradio.com/ Homepage: >> http://www.flexradio.com/ >> > > _______________________________________________ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kc.flexradio.com/ Homepage: http://www.flexradio.com/
