Hi Steve, I am running a Flex 5KA with version .19RC1 software and an Acom 2k. When I first got the Flex 3 years ago there was a problem with a spike on key up that would trip the Acom. Within about six months of owning the Flex and the Acom there were a number of updates to PSDR and the problem went away. I have also heard of the same issue with the Acom and other transceivers such as the Yaesu FT2K. When I got the spike all the LEDs on the power bar would light up and then the amp would trip obviously not something you want with a high dollar amp like the Acom. I run SSB/CW/RTTY(AFSK) and haven't seen the problem in a long time. Normally I set the drive power through DDUTil to 25 watts for normal operations. If there is a pile up and a station I want to work I can drive the amp with 40+ watts without a problem. There is a time delay on the antenna list that might help your problem, I used an outboard circuit until the problem went away. Also a Heil foot switch has a two sets of contacts that can delay the amp coming on until the exciter has stabilized. I hope this helps. 73 George W2GS
-----Original Message----- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz]On Behalf Of Steve Tripp (K1IIG-1) Sent: Wednesday, March 02, 2011 3:38 PM To: flexradio@flex-radio.biz Subject: [Bulk] [Flexradio] FLEX5K Drops Amplifier 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/
