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Author Topic: QRP Labs 5W CW Transceiver Kit  (Read 39724 times)
WD3N
Member

Posts: 23




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« Reply #15 on: October 08, 2017, 12:49:47 PM »

Last update was 552 ,but it does not get updated over the weekend .
you are gettig close.
73
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W3TTT
Member

Posts: 290




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« Reply #16 on: October 08, 2017, 03:24:51 PM »

Order ID: 11706
Date Ordered: 23/08/2017

Your order has been updated to the following status:
Shipped

Whoopie!
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N4IAG
Member

Posts: 92




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« Reply #17 on: October 23, 2017, 07:09:58 AM »

Just to follow up on my original post, I received and built my 40m kit. I've had some time to play with it and make contacts, and have to say I'm very pleased. It's a fun radio!

The assembly instructions may be the best I've ever seen, for anything! It took me several 2-3 hour sessions to complete. The only problem I had was at power-up, I had to switch the power on & off twice for it to come alive. This was fixed by replacing L6 with a 47uH inductor - new kits now have this included. The paddle jack didn't work with a straight key or external keyer mono plug, so I added a jack for that.

The receiver is very sensitive and the audio is loud, almost too loud. I can hear strong signals by barely turning the volume. On transmit I'm getting 3.5 watts out with a 12v supply. The frequency readout was only 200 Hz different than my IC-7300 - I then zero beat it by changing a menu number.

So many bells & whistles in a $49 radio is amazing IMO.

« Last Edit: October 23, 2017, 07:14:33 AM by N4IAG » Logged

I want to die peacefully in my sleep like my grandfather, not screaming in terror like his passengers.
VK5EEE
Member

Posts: 1215




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« Reply #18 on: November 27, 2017, 06:50:51 AM »

An amazing rig, its features would cost 10 to 100 times this when you factor in signal generator etc. The RX is on a par with my big rig. The 200 Hz filter is excellent, no ringing. Full QSK, a pleasure and great fun to use.

On 30m CW already 4W, DU9, JA, S5 Europe (via long path), and N7XM, with 3W output from the voltage I'm using.

On WSPR night short path to Europe many stations hear me, and in the afternoon long path. Even the on-board CW key is fun to use. Have yet to put it in a case, that will be the next fun.
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Long Live Real Human CW and wishing you many happy CW QSO - 77 - CW Forever

Support CW and join CW clubs. QTT: FIST#1124, HSC#1437, UFT#728, RCWC#982, SKCC#15007, CWOPS#1714, 30CW#1,
VK5EEE
Member

Posts: 1215




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« Reply #19 on: November 30, 2017, 02:53:05 AM »

Review of QRPLabs QCX kit:

https://www.youtube.com/watch?v=A0BkDoVcaQ4
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Long Live Real Human CW and wishing you many happy CW QSO - 77 - CW Forever

Support CW and join CW clubs. QTT: FIST#1124, HSC#1437, UFT#728, RCWC#982, SKCC#15007, CWOPS#1714, 30CW#1,
N0YXB
Member

Posts: 1410




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« Reply #20 on: November 30, 2017, 06:55:15 AM »

Awesome video. I must order one of these.
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AE5X
Member

Posts: 1222




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« Reply #21 on: January 25, 2018, 05:30:58 PM »

Here is an awesome troubleshooting guide to the QCX. It is very informative and educational. Even if you don't have a QCX, many of the techniques described by Hans (and the thought process) are universal:

http://qrp-labs.com/qcx/qcxtrouble.html
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K8AXW
Member

Posts: 6994




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« Reply #22 on: January 25, 2018, 08:34:35 PM »

I was all set to order my kit but ran across (Youtube videos) one major 'problem.' 

How does one mount this beautiful piece of gear in a box?  The push buttons are mounted much lower than the controls.  There is some question in my mind about the levels of the readout and the two control pots.

While I find the kit as a whole very exciting I can't visualize myself operating this rig naked on the shack desk. 

To address this problem, can anyone offer information on how to either mount this thing in a box or if the switches and other connectors can be "extended" somewhat (stiff wires) or flexible wires in the case of the various jacks?
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A Pessimist is Never Disappointed!
N4IAG
Member

Posts: 92




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« Reply #23 on: January 26, 2018, 06:51:28 AM »

How does one mount this beautiful piece of gear in a box?  The push buttons are mounted much lower than the controls.  There is some question in my mind about the levels of the readout and the two control pots.

While I find the kit as a whole very exciting I can't visualize myself operating this rig naked on the shack desk. 

To address this problem, can anyone offer information on how to either mount this thing in a box or if the switches and other connectors can be "extended" somewhat (stiff wires) or flexible wires in the case of the various jacks?

Not to worry - users have come up with some nice & innovative ways to enclose the QCX in a variety of cases, including downloadable plans for a 3-D printed one.

Check out the gallery and the photos section on the QRP Labs user group.

http://qrp-labs.com/qcx/qcxgallery.html
https://groups.io/g/QRPLabs
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I want to die peacefully in my sleep like my grandfather, not screaming in terror like his passengers.
K8AXW
Member

Posts: 6994




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« Reply #24 on: January 26, 2018, 09:45:11 AM »

IAG:  Many thanks for the info.  It not only answered the HOW question but also the "Can the controls be extended?"

The job WA4MZS did is outstanding! 

I built the TAK-40 several years ago that was published as an ARRL's Homebrew Challenge. All of the controls as well as the LCD panel was connected by wires to the various PCBs.  No problem.  But with this animal, I wasn't so sure.

TY again OM.
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A Pessimist is Never Disappointed!
KL7KN
Member

Posts: 145


WWW

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« Reply #25 on: January 26, 2018, 11:35:45 PM »

N4IAG - also - my thanks for the photo links!
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K8AXW
Member

Posts: 6994




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« Reply #26 on: January 27, 2018, 09:06:34 PM »

I've downloaded and looked through the manual for the QOX rig looking for the tuning/operting range of the 20m rig. I can't find these specs.

Can someone please provide this information to a poor old man that seems to be losing his marbles?
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A Pessimist is Never Disappointed!
N6MST
Member

Posts: 61




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« Reply #27 on: January 28, 2018, 03:05:45 AM »

...looking for the tuning/operting range of the 20m rig.
Synthesized VFO with the si5351 chip, I assumed it had full band coverage.
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K8AXW
Member

Posts: 6994




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« Reply #28 on: January 28, 2018, 09:05:44 AM »

I initially "assumed" as well but then talked myself out of this when nothing was mentioned about being able to open the filter to copy SSB.  (Not interested in transmitting SSB) but it would be nice to LISTEN!)

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A Pessimist is Never Disappointed!
KD8ZM
Member

Posts: 5




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« Reply #29 on: January 31, 2018, 12:14:48 PM »

I had a nice QSO last night with N3HAM in Philly (I'm in Dayton); he was using a QCX 40m and I was also running QRP. I was excited for some reason by this exchange when I found out he was running the QCX.
I am (almost) inspired enough to try to assemble the 2 QCXs (30m and 40m) I have sitting in their unopened boxes on my desk! Smiley 

73 Brady KD8ZM
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