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[82.70.254.222]) by smtp.gmail.com with ESMTPSA id y4-v6sm1162823wrd.25.2018.10.12.05.42.11 (version=TLS1 cipher=AES128-SHA bits=128/128); Fri, 12 Oct 2018 05:42:11 -0700 (PDT) Date: Fri, 12 Oct 2018 13:42:10 +0100 From: Chris Wilson X-Priority: 3 (Normal) Message-ID: <378922653.20181012134210@gmail.com> To: David Bowman In-Reply-To: References: <1585153745.20181010151550@gmail.com> MIME-Version: 1.0 X-Spam-Score: 0.0 (/) X-Spam-Report: Spam detection software, running on the system "relay1.thorcom.net", has NOT identified this incoming email as spam. The original message has been attached to this so you can view it or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: Hello David, Thanks for the reply. I will try this I take it you just tie Input A and Input B together and feed it a x2 signal with X2 tone spacing if using WSPR? I am pretty sure there's either harmonics or another frequency riding on CLK1 when in this new Iv mode so I am moving away from that as you suggest. I now have a refreshed set up whereby I am able to use the TS-590 for sensible TX operation of JT-9 with either the Red Pitaya or the 590 as the receiver. So when the LF antenna is operational at your end I should be able to work you :) [...] Content analysis details: (0.0 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at http://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:430 listed in] [list.dnswl.org] 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (dead.fets[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid X-Scan-Signature: a6b6ffaf48fdddf1ed5c25dc4bf03ee1 Subject: Re: LF: FET driver driven direct from a Si5351a questions Content-Type: text/plain; charset=utf-8 X-Spam-Checker-Version: SpamAssassin 2.63 (2004-01-11) on post.thorcom.com X-Spam-Level: X-Spam-Status: No, hits=0.8 required=5.0 tests=PRIORITY_NO_NAME autolearn=no version=2.63 X-SA-Exim-Scanned: Yes Sender: owner-rsgb_lf_group@blacksheep.org Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rs_out_1@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by klubnl.pl id w9CCrj37003431 Hello David, Thanks for the reply. I will try this I take it you just tie Input A and Input B together and feed it a x2 signal with X2 tone spacing if using WSPR? I am pretty sure there's either harmonics or another frequency riding on CLK1 when in this new Iv mode so I am moving away from that as you suggest. I now have a refreshed set up whereby I am able to use the TS-590 for sensible TX operation of JT-9 with either the Red Pitaya or the 590 as the receiver. So when the LF antenna is operational at your end I should be able to work you :) Thursday, October 11, 2018, 9:36:03 PM, you wrote: > Hi Chris. > Not sure I have a solution for the circuit you have.  > However, it may be worth not using the 180 degree outputs from the > Silab oscillator.  Have you thought about the advantages of a FET driver > that has a common input but 2 antiphase outputs ?? > The TC4428 is an example. They take great care with rise times and > propagation delays....perhaps the Si device does not give 'perfect' waveforms. > Worth a try ?? > regards > David -- Best regards, Chris mailto:dead.fets@gmail.com