This is more like an ALC overshoot than a keying spike like in the IC-781 Especially noted when using a low drive Amp and several spikes will be noted from key to unkey while in SSB. I have noticed it since owning a 5K since 2008 almost 3 years; However have seen it improved since intro of Beta 1.19 beta thru 2.0.19 Rc1 But it's still there.
KE4WY Jim Sent from the land of OZ On Mar 2, 2011, at 9:21 PM, "Williams, Barry" <[email protected]> wrote: > One of my favorite transceivers was the ICOM IC-781. It had a spike of 150 > watts before the ALC took over. Quite a few low drive amps died due to this > problem. ICOMs answer was "That is the way it works". The users of this rig > figured out the problem and corrected it. It required swapping a couple of > resistors and changing a couple of capacitors. This in a $6,000 transceiver > in 1988. > > Isn't it great to turn in a bug report instead of searching schematics? > > 73, > Barry > KD5VC > ------Original Message------ > From: Richard W. Solomon > To: [email protected] > ReplyTo: 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 <[email protected]> >> Sent: Mar 2, 2011 4:23 PM >> To: [email protected] >> Cc: [email protected] >> Subject: Re: [Flexradio] FLEX5K Drops Amplifier >> >> On Wed, Mar 2, 2011 at 2:51 PM, <[email protected]> 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 tonight. >> >> -- >> Brian Lloyd, WB6RQN/J79BPL >> 3191 Western Dr. >> Cameron Park, CA 95682 >> [email protected] >> +1.767.617.1365 (Dominica) >> +1.931.492.6776 (USA) >> (+1.931.4.WB6RQN) >> _______________________________________________ >> FlexRadio Systems Mailing List >> [email protected] >> 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 > [email protected] > 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 > [email protected] > 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 [email protected] 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/
