Re: [Flexradio] FLEX5K Drops Amplifier

I can confirm this happens with my Flex 5K, and Alpha 99, using current release version of PowerSDR. It is difficult to get a stable situation, even as low as 10 watts out on the Flex to safely drive the amp on SSB. Kim K4ATX On Mar 3, 2011, at 8:35 PM, Jeff Anderson wrote: > Hi Gerald, > >

Re: [Flexradio] FLEX5K Drops Amplifier

Hi Jeff, I did read your test results and ran them this afternoon myself. I have some data that may counter your theory or I may end up agreeing with you. However, I am going to respond in detail off reflector because I have already made one incorrect public hypothesis today that I had to retrac

Re: [Flexradio] FLEX5K Drops Amplifier

Hi Gerald, From my own experiments, I'm not convinced that it's a problem with the ALC algorithm itself (i.e. that it isn't "ALC overshoot"), but rather with the placement of the ALC algorithm within the code. With "stock" code, my measurements show that severe TX overshooting can occur, and

Re: [Flexradio] FLEX5K Drops Amplifier

On Thu, Mar 3, 2011 at 4:31 PM, Ross Stenberg wrote: > "What we've got here...is (a) failure to communicate" Perhaps. I certainly see what everyone is saying and everyone is right. It all depends on what you are looking for. Clearly there needs to be a limiter function with fast attack and redu

Re: [Flexradio] FLEX5K Drops Amplifier

"What we've got here...is (a) failure to communicate" ___ 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/ Know

Re: [Flexradio] FLEX5K Drops Amplifier

wow! overshoot like crazy several times from key to unkey. 1600, 1800 etc KE4WY JIM d Sent: Thursday, March 03, 2011 6:53 PM. To: Jim Cc: Steve Tripp (K1IIG-1) ; flexradio@flex-radio.biz Subject: Re: [Flexradio] FLEX5K Drops Amplifier Steve, See below. Gerald Gerald Youngblood, K5S

Re: [Flexradio] FLEX5K Drops Amplifier

Steve, See below. 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 Tune In Excitement (TM) PowerSDR(TM) is a trade

Re: [Flexradio] FLEX5K Drops Amplifier

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.

Re: [Flexradio] FLEX5K Drops Amplifier

CPDR on, and set to 1, is very light compression. It is IMPOSSIBLE for it to overshoot. If there is overshoot with that on, it is a hardware spike. I suggest an experiment with CPDR on, set to 1, to see if the ACOM stops tripping. This would isolate it to the DSP sections working on the digital

Re: [Flexradio] FLEX5K Drops Amplifier

Writing complex code systems such as PSDR is like pushing on jello, one of my favorite analogies. I get the pleasure of doing this in multiple code bases but PSDR and GnuRadio are the ones that jump to mind when I worry about consequences because of the number of people and equipment impacted. GR

Re: [Flexradio] FLEX5K Drops Amplifier

Easy Ssb peaks equal & never exceed the drive setting. If drive is set to 40 watts Ssb peak setting reaches but never exceeds 40 watts. Easy experiment in test section set To 40 watts engage two tone & it will be above 40. It may surprise you how much. If using Compression note the difference b

Re: [Flexradio] FLEX5K Drops Amplifier

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 engineeri

Re: [Flexradio] FLEX5K Drops Amplifier

> > Isn't it great to turn in a bug report instead of searching schematics? > > 73, > Barry > KD5VC > --Original Message-- > From: Richard W. Solomon > To: flexradio@flex-radio.biz > ReplyTo: Richard W. Solomon > Subject: Re: [Flexradio] FLEX5K Drop

Re: [Flexradio] FLEX5K Drops Amplifier

On Wed, Mar 2, 2011 at 4:32 PM, Richard W. Solomon wrote: > A fast Storage Scope would be better, the pulse, which only occurs when > the T/R circuit is activated, would be quite fast. > I was planning to use a microcontroller to key and unkey the rig repeatedly so I have a repetitive waveform t

Re: [Flexradio] FLEX5K Drops Amplifier

lyTo: Richard W. Solomon Subject: Re: [Flexradio] FLEX5K Drops Amplifier Sent: Mar 2, 2011 6:32 PM A fast Storage Scope would be better, the pulse, which only occurs when the T/R circuit is activated, would be quite fast. 73, Dick, W1KSZ -Original Message- >From: Brian Lloyd >Sent: Ma

Re: [Flexradio] FLEX5K Drops Amplifier

pulse, which only occurs when the T/R circuit is activated, would be quite fast. 73, Dick, W1KSZ -Original Message- >From: Brian Lloyd >Sent: Mar 2, 2011 4:23 PM >To: manual...@juno.com >Cc: flexradio@flex-radio.biz >Subject: Re: [Flexradio] FLEX5K Drops Amplifier > >O

Re: [Flexradio] FLEX5K Drops Amplifier

Re: [Flexradio] FLEX5K Drops Amplifier > >On Wed, Mar 2, 2011 at 2:51 PM, wrote: > >> Connect an RF sensor(connected to a fast scope) to the cable between the >> 5000 and the Acom and see if you can catch it in action. >> > >I have a station monitor. Right now I have

Re: [Flexradio] FLEX5K Drops Amplifier

On Wed, Mar 2, 2011 at 2:51 PM, wrote: > Connect an RF sensor(connected to a fast scope) to the cable between the > 5000 and the Acom and see if you can catch it in action. > I have a station monitor. Right now I have it attached to the 3000 at school but can bring it home and check out the 5000

Re: [Flexradio] FLEX5K Drops Amplifier

Connect an RF sensor(connected to a fast scope) to the cable between the 5000 and the Acom and see if you can catch it in action. Pete, wa2cwa On Wed, 2 Mar 2011 17:04:21 -0500 Neal Campbell writes: > I can attest to Steve's credibility and observation. I have not had > my 2000a > on line for 6

Re: [Flexradio] FLEX5K Drops Amplifier

I can attest to Steve's credibility and observation. I have not had my 2000a on line for 6+ months and just hooked everything back up this weekend. It will trip with 25 watts, cw, psk, etc. I do not know if there is a spike in the key up or key down but I would suspect the latter based on what I se

[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, where