[Lowfer] Fw: 30m QRSS beacon kit

[Paul Daulton]

Hans Summers put on a talk at FDI M at Dayton about qrss and 30 meter beaconing. He sold 100 kits. below is a link to Hans Page and some discussion of the kits. Hope we can link up with the 30 meter guys.

Mike we0h and I bought the kits. will let ou know how they work.

Paul k5wms
----- Original Message ----- 
From: Hans Summers 
To: G0UPL ; Stephen Farthing 
Sent: Monday, May 24, 2010 1:33 AM
Subject: 30m QRSS beacon kit



Hi all

I hope you enjoyed FDIM 2010 as much as I did! Now I'm back in the UK, back at work, caught up on work, etc. Thanks for buying the QRSS TX kit. They all sold out very fast! I noticed some of you took photos of the pileup - if you have any to email me it would be great! 

I have put together a quick web page on my site about this kit. Steve and I will set up a QRPP Labs website soon and host the page on that. Meanwhile see http://www.hanssummers.com/qrsskit

A couple of points about the kit: 

1) The potentiometer potentiometer in the kit doesn't quite fit the holes on the PCB. The two holes near the edge of the board are too small. The orientation of the potentiometer trimmer is supposed to be with the wiper towards the right (near R6). The wiper connection does fit its hole. The easiest way to fit this trimmer is to cut off the two pins that will fit those two small holes. Leave about 1/4-inch remaining of the trimmer pins. That's a nice thick piece remaining, which should sit nicely on the PCB when the trimmer is in place. Then you can slip through a couple of wires (use some of the off-cuts from the resistors) into the holes, and solder the track side to the PCB track, and the component side to the remainder of the trimmer pin. Much easier to do, than to explain in words.

2) The colour codes on the resistors are 5-bars not 4. So a little harder to read, if you're not used to it. The colour codes are:

R1: 470K: Yellow-Purple-Yellow-Gold (usual 4-bar code)
R2: 10K: Brown-Black-Black-Red-Brown
R3: 180-ohm: Brown-Grey-Black-Black-Brown
R4: 330-ohm: Orange-Orange-Black-Black-Brown
R5: 150-ohm: Brown-Green-Black-Black-Brown
R6: 6.8K: Blue-Grey-Black-Brown-Brown
R7: 12K: Brown-Red-Black-Red-Brown
 
3) The wire size in the kit, makes it a bit difficult to wind 35 turns on L1. If necessary you could overlap turns. But in my test build of the kit, I wound on only 27 turns and it worked fine, it was no problem to tune the crystal onto 10,140,050 or so.

4) Please remember to join the Knights QRSS email list http://cnts.be/mailman/listinfo/knightsqrss_cnts.be

5) Please remember to join the Yahoo group http://groups.yahoo.com/group/QRPLabs/

I noticed a few people have emailed me a couple of comments, but I haven't got caught up yet on the email, apologies.

Let me know how it goes!

73 Hans G0UPL