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New kit: 5W CW transceiver with WSPR beacon
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Hello all, The new QRP Labs kit "QCX" is now available, a single-band 5W transceiver with high performance and packed with features, including a WSPR beacon, built-in test equipment, CW decoder, sythesised rotary-encoder VFO, etc. The kit price is $49 (equivalent to ?38.06, 41.73� at time of writing). Order here:? .?Shipping is $6.30 to anywhere in the world and delivery is tax-free. The 137-page assembly/operation manual can be downloaded here and includes circuit diagram and comprehensive description of circuit operation.? Features:
73 Hans G0UPL |
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Hello all, The new QRP Labs kit "QCX" is now available, a single-band 5W transceiver with high performance and packed with features, including a WSPR beacon, built-in test equipment, CW decoder, sythesised rotary-encoder VFO, etc. The kit price is $49 (equivalent to ?38.06, 41.73� at time of writing). Order here:? .?Shipping is $6.30 to anywhere in the world and delivery is tax-free. The 137-page assembly/operation manual can be downloaded here and includes circuit diagram and comprehensive description of circuit operation.? Features:
73 Hans G0UPL |
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开云体育Thanks Hans ordered one looking forward to building it. Cheers? Paul M0pnn? Sent from my Samsung device -------- Original message -------- From: Hans Summers <hans.summers@...> Date: 21/08/2017 10:00 (GMT+00:00) To: [email protected] Subject: [QRPLabs] New kit: 5W CW transceiver with WSPR beacon Hello all,
The new QRP Labs kit "QCX" is now available, a single-band 5W transceiver with high performance and packed with features, including a WSPR beacon, built-in test equipment, CW decoder, sythesised rotary-encoder VFO, etc. The kit price is $49 (equivalent to ?38.06, 41.73� at time of writing). Order here:? .?Shipping is $6.30 to anywhere in the world and delivery is tax-free. The 137-page assembly/operation manual can be downloaded here and includes circuit diagram and comprehensive description of circuit operation.? Features:
73 Hans G0UPL |
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开云体育Hans, Another great kit, thanks! What band should I order ? (I'm cw ignorant !!) Phil N6WKZ On 8/21/2017 2:00 AM, Hans Summers
wrote:
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to address the question of which band --
at this time in the sunspot cycle - 40m is the most active.? the higher bands are open occasionally.? 30m also a nice choice as CW tends to be less crowded.? 80m best in winter time with reduced QRN.? you can later change bands, but its a decent number of parts changes in the PA and BPF, then you must re-calibrate - which may be fun using this rig.? in time, I imagine support for other digital modes, somehow - as it would provide a low cost rig for many youth around the world.? meanwhile, enjoy the ride.? Curt WB8YYY |
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Andreas Salder
开云体育I think nobody in the group is interested if you order a kit. Why so you mit sent a personal mail to Hans? the spamming of the group is horrible... vy 73 de Andreas DK5ON? Von meinem Samsung Galaxy Smartphone gesendet. -------- Ursprüngliche Nachricht -------- Von: Philip Thompson <pcteee@...> Datum: 21.08.17 12:47 (GMT+01:00) Betreff: Re: [QRPLabs] New kit: 5W CW transceiver with WSPR beacon Pocket money depleated again :) Can't wait, thanks Hans Phil ?G4JVF |
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Master Ice
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I suspect not everyone thinks the same
way as you Andreass and anyone stating about a purchase from QRPLabs on the
QRPLabs reflector hardly classifies as spam now does it?
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Slim G4IPZ
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Hi all Let's not worry about it or discuss it too much further... Technically, Andreas is correct, a message that someone bought something is like "Merry Christmas" or "Happy New Year"... it is off-topic... and if all 2,008 members of this group decided to do it, that would be a lot of messages... BUT, on the other hand, occasional postings like this, do contribute to the nice friendly nature of the group, they help to establish the nice friendly atmosphere of the community.? So I don't mind such friendly occasionally OT messages... and anyway the last thing I think we need is strict moderation. I really don't like mailing lists or groups where the moderation is too heavy, and people are scared to send a message in case someone gets offended. Better a more easy-going attitude, more tolerance, even if it means sometimes needing to press the "Delete" button more than technically necessary! 73 Hans G0UPL On Tue, Aug 22, 2017 at 12:38 PM, Philip Thompson <pcteee@...> wrote: I've been buying kits from Hans since he first started and I just like to send a quick post |
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Are there any suggestions for a suitable case?
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Thanks Bill M0WLH On 21 August 2017 at 10:00, Hans Summers <hans.summers@...> wrote:
Hello all, --
Professor of Applied Mathematics University of Manchester |
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开云体育Hans, will you have a ?case designed specifically for this new kit?Thanks,
-Kevin (KK4YEL)?
No trees were killed in the sending of this message. However, a large?number of electrons were terribly inconvenienced !
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Hi Kevin, Bill, all The response to this kit launch was phenomenal. All remaining 320 kits have sold out in a little over 24 hours since launch yesterday. I will start manufacturing a new batch of another 500. It is clear that once people start receiving these, I am going to experience an escalation in my email load, which is already heavy enough :-/ ? Therefore I have created a FAQ for the QCX CW transceiver kit, see? ... and one of the first things I have put on it, since I have already been asked this question so many times already, is about an enclosure ;-) ? See? 73 Hans G0UPL On Tue, Aug 22, 2017 at 3:14 PM, z_ kevino <z_kevino@...> wrote:
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Martin
Hi Hans,
Im hoping this isnt too stupid a question! The idea of the WSPR beacon mode is great, especially for us SOTA ops. Would I be right in thinking that outside of the WSPR Tx period, the receiver can then also be used to receive the WSPR sub-band, with the aid of a suitable external device and app to decode the incoming signals? Going to check the piggybank now! Regards Martin G7MRV |
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Hi Martin The receiver has a 700Hz CW filter. WSPR decoders work at 1500Hz. So it is not directly compatible... You could pull off the signal BEFORE the CW filter and use that. The audio phase shift is optimised for CW work but I measured 24dB of unwanted sideband cancellation even at 1500Hz, which would be plenty for WSPR reception.? 73 Hans G0UPL On Tue, Aug 22, 2017 at 9:42 PM, Martin <barfield673@...> wrote: Hi Hans, |
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Alan,
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Well put. One of the reasons I like this list so much is that Hans rules with a loose grip. As long as the discussions don't get out of hand then general chatter is easily tolerated. Besides, I am interested who is buying what kits. Lets me know what is popular and how much. Goes hand in hand with reports of success and troubles. cheers, Graham ve3gtc On 2017-08-22 08:32, Alan G4ZFQ wrote:
I think nobody in the group is interested if you order a kit.Andreas, |
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Martin
Thanks Hans,
Ah yes, I was thinking of the bandwidth of the CW filter - not the center frequency! But a simple add on bypass switch could possibly be used to link out the filter when receiving WSPR... However, would I be right in thinking that in beacon mode the receiver is not active? My understanding so far is that in beacon mode the unit performs much like the U3S, doing its calibration etc, so would that mean that there is no active receive during the downtime between WSPR Tx periods? Or is the receiver active but just not shown on the LCD? I guess there would be a need to set the receive frequency differently also to the Tx, I suspect this would require a firmware mod? Cheers Martin G7MRV |
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Hi Martin ? Ah yes, I was thinking of the bandwidth of the CW filter - not the center frequency! But a simple add on bypass switch could possibly be used to link out the filter when receiving WSPR... That would work. You would only get about 25dB unwanted sideband cancellation at 1500Hz but for WSPR that should be fine. ? ? However, would I be right in thinking that in beacon mode the receiver is not active? My understanding so far is that in beacon mode the unit performs much like the U3S, doing its calibration etc, so would that mean that there is no active receive during the downtime between WSPR Tx periods? Or is the receiver active but just not shown on the LCD? I guess there would be a need to set the receive frequency differently also to the Tx, I suspect this would require a firmware mod? In the beacon mode, the receiver is active in between TX periods. The receive VFO is offset from the transmit frequency by the "CW Offset" parameter (default 700Hz). That presents a slight difficulty for 1500Hz WSPR since the CW Offset parameter is a 3-digit number so has a maximum value of 999Hz. I can easily change this with a small change to the firmware, that I will make immediately. The GPS serial data parse (for real-time clock setting and Maidenhead Locator grid square), and the 27MHz reference frequency calibration, all take place immediately after the end of the WSPR transmission. The time required for the parse and frequency calibration is 7 seconds. Therefore it is all over by the start of the next minute - either for another WSPR transmission or preferably (since continuous WPSR TX in every slot is very anti-social) for some RX time.? The calibration etc in the QCX is not the same as the U3S.? 73 Hans G0UPL |
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z_ kevino
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