Hello all, I have been fighting a problem with my Flex-3000 setup (or one that it is a victim of) which I believe... is related to RF getting back into it and freezing it up (Problem: display wave form freezes on transmit after modulation, Flex-3000 requires a power cycle/PSDR needs to be restarted on my notebook PC).
At first I thought it was a problem with my firewire card and all that, but eventually got to try transmitting into a dummy load and under this scenario the rig does not freeze up when transmitting (all the way up to full power out/100w). Other details: * 50¹ of LMR-400 feeding a Radiowavz OCF DX 80 ( replaced RG-8X with the LMR-400 as part of my debug process here) * Insertion/use of an external tuner does not seem to change the symptoms or prevent freeze up * Increasing output power (and Mic gain to drive it) beyond a few watts into the antenna causes it to crash * Problem seems to be worst on 40m, but I have had it crash on 20m as well. Higher bands seen less prone to crashing Grounding: I have been trying different grounding things but to no avail. I DO NOT currently have a 8¹ rod handily pounded into the ground nearby. I have tried the incoming copper water pipe in addition to normal A/C house ground (I also tried a 50¹ run of RG-8x to that incoming water pipe, with the C/S shorted on the pipe end and a .01uf ceramic cap between the center and the shield on the other end, where I then connected the center to the GND on the Flex-3000). Other rigs: Prior to purchasing the Flex-3000 I have been running my FT-897D into this same antenna setup with no known (or detected) issues related to ground or RFI, etc. Thoughts? Ideas? Theories? What am I missing here? Is there anything in the Flex-3000 that maybe is futz in some way that would make it hypersensitive to some RF(???) in the shack? Or am I missing some other angle here? Thanks in advance, Russ, KF1K _______________________________________________ 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/
