[Flexradio] F5KC Ant Config Mode issue with RX1 Gain loop

Hi All During my testing/investigations ( Goal minimum QRN?, better S/N ratio?, Beverages too long for space permanently available here ) of small shielded loops for 160 80 40m, I came across a potential problem (bug?). I am using an 28dB Gain (checked, matches VK1OD findings on ant factor)

Re: [Flexradio] PowerSDR S-Meter Power Readings

Hi ALL This is a test triggered by the S-Meter discussion. I noticed the S-Meter changes, as should, by changing Bandwidth (BW), assuming white noise. Predicted amplitude change in dB = 10xlog(BW2/BW1) e.g. white noise to RX 1 Ant1 RX1 Tap (F5KC, PowerSDR v1.16.1) 10130 KHz CWU 1KHz/100Hz

Re: [Flexradio] 5000 X-MIT AUDIO DEGRADATION

-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Andy Diethard Hansen Sent: Monday, April 06, 2009 11:10 PM To: Jim Menefee; flexradio@flex-radio.biz Subject: Re: [Flexradio] 5000 X-MIT AUDIO DEGRADATION Hi Jim, Yes, perhaps a complex EMC problem. I did(and still do) many EMI

Re: [Flexradio] 5000 X-MIT AUDIO DEGRADATION

Hi Jim, Yes, perhaps a complex EMC problem. I did(and still do) many EMI investigations on my Flex 5000C (eham /my qrz.com) mostly around CW issues. My general rule is any radio that is EMC ok on the inside, but allows penetrations of un/shielded cables ( not 360 degree terminated shield on the

Re: [Flexradio] Fellow RFI'ed Flexonians

Hi ALL I am following the discussion on RFI -getting into the FLEX system / or not- with great interest. The audio RFI article is great. When I did my own tests (also www.qrz.com/detail/hb9cvq ) here, I found there are two potential RFI problem areas: 1.) System external RFI 2.) System internal

[Flexradio] F5KC Baseline on RX Band Scopes not always fully flat

Hi All I am running F5KC under PowerSDR v1.16.1 and Driver 3.2.0 build 1556, Firmware 1.3.0.0, SR 96K, B 2048 TRX (30K), RFIO (34C), RX2(33C) and an analog 13.8V PS GSV 3000 DIAMOND, all is well grounded and RF-filtered. Even under direct 50 Ohm termination on RX1-in, RX2-in, or RX2-RX2Tap, as

[Flexradio] F5KC RFIO TX EMI-coupling into HTRX Board

Hi ALL F5KC RFIO TX EMI-coupling into HTRX Board, causing CW, QSK hick-ups + RX noise just found an intra system EMI problem (not software) inside my F5KC and a first (not yet sufficient) fix (ferrite): http://www.qrz.com/detail/hb9cvq (scroll all the way down under F5KC test report ) any

Re: [Flexradio] F5KC RFIO TX EMI-coupling into HTRX Board

-4713 -Original Message- From: flexradio-boun...@flex-radio.biz [mailto:flexradio-boun...@flex-radio.biz] On Behalf Of Andy Diethard Hansen Sent: Tuesday, January 13, 2009 10:59 AM To: FlexRadio@flex-radio.biz Subject: [Flexradio] F5KC RFIO TX EMI-coupling into HTRX Board Hi ALL F5KC RFIO

[Flexradio] Comments on my F5KC testing?

Hi Group I like to share my findings with the experts here: www.qrz.com/detail/hb9cvq Any suggestions or comments are very welcome. tnx, 73 Andy HB9CVQ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz