Return-Path: X-Spam-DCC: paranoid 1290; 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=-2.6 required=5.0 tests=BAYES_00 autolearn=ham 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 u02IWMmk030031 for ; Sat, 2 Jan 2016 19:32:23 +0100 Received: from majordom by post.thorcom.com with local (Exim 4.14) id 1aFQum-0007Vg-K6 for rs_out_1@blacksheep.org; Sat, 02 Jan 2016 18:28:32 +0000 Received: from [195.171.43.32] (helo=relay1.thorcom.net) by post.thorcom.com with esmtp (Exim 4.14) id 1aFQum-0007VX-9z for rsgb_lf_group@blacksheep.org; Sat, 02 Jan 2016 18:28:32 +0000 Received: from smtpout2.wanadoo.co.uk ([80.12.242.42] helo=smtpout.wanadoo.co.uk) by relay1.thorcom.net with esmtp (Exim 4.86) (envelope-from ) id 1aFQtw-00018c-J2 for rsgb_lf_group@blacksheep.org; Sat, 02 Jan 2016 18:28:31 +0000 Received: from AGB ([95.150.80.144]) by mwinf5d19 with ME id 16TP1s00S36pFhK036TPye; Sat, 02 Jan 2016 19:27:24 +0100 X-ME-Helo: AGB X-ME-Date: Sat, 02 Jan 2016 19:27:24 +0100 X-ME-IP: 95.150.80.144 Message-ID: <151D3B37A480424C995DBD76D93E445C@AGB> From: "Graham" To: References: <579355A36AEE9D4FA555C45D556003AB25318D38@servigilant.vigilant.local> In-Reply-To: Date: Sat, 2 Jan 2016 18:27:23 -0000 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 X-Scan-Signature: 1273381c241b4bc851b7e848e0897dc9 Subject: Re: LF: Nuand TVerter for MF Content-Type: text/plain; format=flowed; charset="utf-8"; reply-type=original Content-Transfer-Encoding: 8bit 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: O X-Status: X-Keywords: X-UID: 6067 Hi Mal, Depends what you want to do , the VK transvertor , looks ok, at $180 Aus , + import tax , built and tested . but its going to put you 'on frequency' which if you have a class e/d amp , with same channel fets ,, both P or both N , then you will need the drive to be x2 the Ae frequency ... [With P + N you can drive at the Ae frequency ] .. basically .. No can do , even if the translation oscillator is set to give say 954 KHz out [hacked] Any data mode , would have its modulation 'spreading' pattern reduced by 'half' due to the divide by 2 in the logic drive chain .. Its possible to mess about with x2 harmonic amplifier in the drive chain .. but its far from ideal .. and you have lost the linearity ..back to a leggo station 73-G, The U3 is basically a numerically controlled master oscillator The control logic has various modes embodied , so you can set it to Tx on a fixed pattern qrss / cw ,/ opera ,/ wspr , as a beacon The RF frequency can be set , so could be 136 or 272 477 or 954 etc so if your driving a class e/d amp, that means you can enter the drive chain at a higher [multiple] frequency .. Ea5DOM is using one to send wspr-2 op8 op32 complete with carrier qrg shifts at the moment , UA3ASB is using one as a band hopping HF beacon with 1 watt UA1ASB UA1ASB 2200m OPERA 0 km 11:32:20 UA1ASB ON4LUC 80m OPERA 1843 km 15:16:47 UA1ASB UA1ASB 80m OPERA 0 km 12:28:15 UA1ASB CT7ABQ 40m OPERA 3596 km 23:22:32 UA1ASB GW0VLN 40m OPERA 2139 km 17:13:21 UA1ASB G8LCO 40m OPERA 2060 km 14:58:03 UA1ASB G6AVK 40m OPERA 2031 km 17:44:23 UA1ASB F17468 40m OPERA 2268 km 17:44:22 UA1ASB SP7WT 40m OPERA 1098 km 17:44:23 UA1ASB R3LW 40m OPERA 563 km 10:27:47 UA1ASB EA3ACD 40m OPERA 2699 km 16:21:10 UA1ASB RW3ADB 30m OPERA 635 km 17:25:39 EA5IHM UA1ASB 20m OPERA 3291 km 08:18:22 UA1ASB UA1ASB/V 20m OPERA 0 km 12:15:54 UA1ASB SV8RV 20m OPERA 2526 km 13:18:16 UA1ASB DL1IP 20m OPERA 1771 km 12:05:30 -------------------------------------------------- From: "Mal Hamilton" Sent: Saturday, January 02, 2016 4:03 PM To: Subject: Re: LF: Nuand TVerter for MF > Looks like I will have to build one > Looking for a good design > What is a U3 ? > De mal/g3kev > > > Sent from my iPhone > > On 2 Jan 2016, at 15:18, "Graham" wrote: > >> If Ros puts the MF mode back, then, yes a good idea , otherwise , >> otherwise , all you need to send CW, RTTY and Opera is a divide >> by 4 [ OR 2 + Class e/d Pa] , from Top-band and a U3 for wspr .... >> psk is linear , so that needs a linear pa , which are few and far >> between on 477 , same go's for olivia , that needs a linear Tx/Rx path >> ..at the moment mfsk is about as good as it gets .. >> >> Or just a U3 if beacons' are your thing ... >> >> 73-G, >> >> >> -------------------------------------------------- >> From: "VIGILANT Luis Fernández" >> Sent: Saturday, January 02, 2016 11:01 AM >> To: >> Subject: Re: LF: Nuand TVerter for MF >> >>> Hi MF >>> >>> Mal. May be worth to have a look to the design by VK3XDK >>> >>> http://www.vk3xdk.net46.net/1_31_600M-472Khz-479Khz-Transverter-V2.html >>> >>> pdf here >>> >>> http://www.vk3xdk.net46.net/web_documents/600m_transverterv2.pdf >>> >>> 73 de Luis >>> EA5DOM >>> ________________________________________ >>> De: owner-rsgb_lf_group@blacksheep.org >>> [owner-rsgb_lf_group@blacksheep.org] en nombre de Graham >>> [g8fzk@g8fzk.fsnet.co.uk] >>> Enviado: viernes, 1 de enero de 2016 23:43 >>> Para: rsgb_lf_group@blacksheep.org >>> Asunto: Re: LF: Nuand TVerter for MF >>> >>> Looks a nice device Mal, but ... >>> >>> , DC > 300 MHz >>> >>> I don't see the full spec , gives me the impression it compliments >>> the >>> wide band tx/rx >>> which tops out at $1500 >>> >>> There was a good tx/rx single board sdr demonstrated at the rsgb >>> convention , uk made , the cut down version was round £200 .. >>> have to >>> go back over the events list to pin the name down >>> >>> 73-G, >>> >>> -------------------------------------------------- >>> From: "Mal Hamilton" >>> Sent: Friday, January 01, 2016 9:52 PM >>> To: >>> Subject: LF: Nuand TVerter for MF >>> >>>> MF >>>> Does anyone use the Nuand TVerter >>>> If so is it any good? >>>> 73 >>>> Mal/g3kev >>>> >>>> >>>> Sent from my iPhone >> >