Return-Path: X-Spam-DCC: paranoid 1102; Body=2 Fuz1=2 Fuz2=2 X-Spam-Checker-Version: SpamAssassin 3.1.3 (2006-06-01) on lipkowski.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DNS_FROM_AHBL_RHSBL, HTML_MESSAGE autolearn=no version=3.1.3 Received: from post.thorcom.com (post.thorcom.com [195.171.43.25]) by paranoid.lipkowski.org (8.13.7/8.13.7) with ESMTP id u0CLfTWn009365 for ; Tue, 12 Jan 2016 22:41:29 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aJ6c9-0005cT-9q for rs_out_1@blacksheep.org; Tue, 12 Jan 2016 21:36:29 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aJ6c8-0005cK-QI for rsgb_lf_group@blacksheep.org; Tue, 12 Jan 2016 21:36:28 +0000 Received: from out1.ip04ir2.opaltelecom.net ([62.24.128.240]) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1aJ6b8-0004hQ-R2 for rsgb_lf_group@blacksheep.org; Tue, 12 Jan 2016 21:36:27 +0000 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: A2BDBABZcZVWPKyNH1wNURkBAQIPAQECg1xtiFm1FSKEXYEQAiWBVAEBAQEBAQcBAQEBQTSEPwEBAQECASMKUQsJAhgjBwICQwsJBhOIGQMKFpIRnEVxjQkMDoMMAQEBAQEBAQEBAQEBAQEBAQEBAQEBGIhlgnCEOhuDHy6BGwWBT5VEnFWOU4MugUByAYZDAQEB X-IPAS-Result: A2BDBABZcZVWPKyNH1wNURkBAQIPAQECg1xtiFm1FSKEXYEQAiWBVAEBAQEBAQcBAQEBQTSEPwEBAQECASMKUQsJAhgjBwICQwsJBhOIGQMKFpIRnEVxjQkMDoMMAQEBAQEBAQEBAQEBAQEBAQEBAQEBGIhlgnCEOhuDHy6BGwWBT5VEnFWOU4MugUByAYZDAQEB X-IronPort-AV: E=Sophos;i="5.22,285,1449532800"; d="scan'208,217";a="638264364" Received: from host-92-31-141-172.as13285.net (HELO [192.168.1.4]) ([92.31.141.172]) by out1.ip04ir2.opaltelecom.net with ESMTP; 12 Jan 2016 22:15:38 +0000 References: <5694071F.2000706@freenet.de> <6F658A0C-E347-4C74-872F-8DEE7B6CC0EE@talktalk.net> <56943BDE.3060201@freenet.de> From: Mal Hamilton X-Mailer: iPhone Mail (10B500) In-Reply-To: <56943BDE.3060201@freenet.de> Message-Id: <6D2C8500-0E97-42DA-AB21-D41F46E72D3C@talktalk.net> Date: Tue, 12 Jan 2016 21:34:47 +0000 To: "rsgb_lf_group@blacksheep.org" Mime-Version: 1.0 (1.0) X-Scan-Signature: cd79e98bb57cf38a756c15469b5a993e Subject: Re: LF: FW: powered down from "4" to "2" on IC706mk2G due to interference with home routers es QRM from XYL es kids Content-Type: multipart/alternative; boundary=Apple-Mail-06514DF8-ADE9-42FB-BAC7-42AA551F8391 Content-Transfer-Encoding: 7bit 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 X-Scanned-By: MIMEDefang 2.56 on 10.1.3.10 Status: RO X-Status: X-Keywords: X-UID: 6284 --Apple-Mail-06514DF8-ADE9-42FB-BAC7-42AA551F8391 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Wolf What is the comparater chip u use to conv 706 sine wave to sq wave Mal/g3kev Sent from my iPhone On 11 Jan 2016, at 23:33, Wolfgang B=C3=BCscher wrote: > Yes of course Mal, but a simple low-Q LC tank will do.=20 >=20 > See http://www.qsl.net/dl4yhf/mf/mf.html#IC706_on_MF >=20 > (shows the waveform seen on "my" old IC706. The FET driver turns this into= square wave anyway)=20 >=20 >=20 > Am 11.01.2016 um 23:22 schrieb Mal Hamilton: >> Wolf >> Old 706 mk1 not too good either maybe needs a band pass filter before amp= >> Mal/g3kev >>=20 >>=20 >> Sent from my iPhone >>=20 >> On 11 Jan 2016, at 19:48, Wolfgang B=C3=BCscher wrote= : >>=20 >>> Hi all, >>>=20 >>> Beware with the output waveform - my IC 706 MK 2 G produces more "Volts p= eak peak" on MF than an older IC706 (first model), but on a 50 Ohm dummy loa= d, most of the energy was emitted on harmonics ! =46rom the old 706, it was a= lmost a sinewave, so that's what I usually use as the 'exciter' for a linear= MF PA. >>>=20 >>> Cheers, >>> Wolf . =20 >>>=20 >>> Am 11.01.2016 um 12:20 schrieb James Cowburn: >>>> HI all >>>>=20 >>>> Interesting expt. I=E2=80=99ve had to wind back the p= ower setting on the IC706mk2g from =E2=80=9C4=E2=80=9D to =E2=80=9C2=E2=80=9D= so assuming a halving i.e. 3dB. (this was because the MF RF was making my k= ids skype and XYL=E2=80=99s netflix run rough!, one wonders who pays the bil= ls round here!!) >>>>=20 >>>> So far it seems to have made a -1dB to -2dB change in some more Dx repo= rts while others have not changed or increased even. >>>>=20 >>>> I=E2=80=99ll stick with =E2=80=9C2=E2=80=9D for now. >>>>=20 >>>> Cheers >>>>=20 >>>> Jim G7NKS IO92ub >>>>=20 >=20 --Apple-Mail-06514DF8-ADE9-42FB-BAC7-42AA551F8391 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
Wolf
What is the comparater c= hip u use
to conv 706 sine wave to sq wave
Mal/g3kev



Sent from my iPhone

On 11 Jan 20= 16, at 23:33, Wolfgang B=C3=BCscher <dl4yhf@freenet.de> wrote:

=20 =20 =20 Yes of course Mal, but a simple low-Q LC tank will do.

See http://www.qsl.net/dl4yhf/mf/mf.html#IC706_on_MF

(shows the waveform seen on "my" old IC706. The FET driver turns this into square wave anyway)


Am 11.01.2016 um 23:22 schrieb Mal Hamilton:
Wolf
Old 706 mk1 not too good either maybe needs a band pass filter before amp
Mal/g3kev


Sent from my iPhone
Hi all,

Beware with the output waveform - my IC 706 MK 2 G produces more "Volts peak peak" on MF than an older IC706 (first model), but on a 50 Ohm dummy load, most of the energy was emitted on harmonics ! =46rom the old 706, it was almost a sinewave, so that's what I usually use as the 'exciter' for a linear MF PA.

Cheers,
  Wolf . 

Am 11.01.2016 um 12:20 schrieb James Cowburn:
FW: powered down from "4" to "2" on IC706mk2G due to interference with home routers es QRM from XYL es kids=

HI all

Interesting expt.  I=E2=80=99ve had to wind back the power setting on the IC706mk2g from =E2=80=9C4=E2=80=9D= to =E2=80=9C2=E2=80=9D so assuming a halving i.e. 3dB.  (this was because the M= F RF was making my kids skype and XYL=E2=80=99s netflix run rough!, one wonders who pays the bills round here!!)

So far it seems to have made a -1dB to -2dB change in some more Dx reports while others have not changed or increased even.

I=E2=80=99ll stick with =E2=80=9C2=E2=80=9D for now.

Cheers

Jim G7NKS IO92ub




=20
= --Apple-Mail-06514DF8-ADE9-42FB-BAC7-42AA551F8391--