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Hi Group, I've installed the new V2.02a chip, but having problems when using WSPR. The transmission starts OK but at the end of the 2 minute period the RF does not shut down. Has anybody experienced

Thanks Hans, I don't have to wait any longer, my v2.02k chip and a couple of LPF filters arrived this morning (26th Jun 3013). Fitted the chip, put in some setting & fired it up & have already heard

That's quite a typical response for a receiver when it has a strong local signal overwhelming its front end and producing intermodulation products. Even though the UQ is qrp or even qqrp, when it is

OK, here's a good one. I'm running my QRSS grabber on 30m right now and sitting on top of the TS-590 is my U2 kit transmitting WSPR on 20m. When it's transmitting, I totally lose everything on 30m

Hi Paul, I saw you were spotted by VK7DIK. My working conditions are similar to yours (1W to low OCF dipole) and he spotted me too. Season seems to favor north/south paths on low bands. 73, Yan -

Thanks for the reminder Hans. I was just thinking ‘I wonder where my order has got to’. I guess I have a few more days to wait . I (and I’m sure most people here) understand and don’t mind

Good evening all A quick note about the shipping. Orders are normally shipped the next business day after they are received. The exceptions are: 1) When a huge volume of orders are received

Thanks. I was was heading in that direction, but thought I'd ask. Up here in the puckerbrush of Maine Radio Shack knows cell phone and almost nothing else, so I've got to order online !

Hi Frank, I used a separate 3.3v reg to supply pins 4 and 5 directly. no resistors were used anywhere on the gps unit. Pin 6 is pps and pin 2 is txd. Pin 3 is earth. Hope this helps. 73's De

How do you handle the additional 3.3VDC for the UP501 ?

I was surprised last night when no one on my continent copied my WSPR signal but I WAS copied for about an hour in southern Australia! 13360 km per watt on 80 meters I will take any day!

Just received my version 2.02a 20 minutes before heading off to work. Can confirm the unit fired up first time with gps working and calibrating the output. No fuss and no hassle. My gps is the UP501

On randomness and antenna length, I generally try to ensure with loops that they are at least a full wavelength long on the lowest operating frequency. If that is achieved you can tune them on that

Must have been a few oddities in previous tests with the U2 on 28Mhz. Now that I've moved mine up into the attic, and walked a mile away to do some listening tests using the FT817 the signal is as

Try it and see how it works Tony. As if often seen, random bits of wire work better on some bands rather than other, depending upon the distances in the doglegs etc etc. Sometimes results are

On the matter off loops, I am thinking of running wspr on two frequencies simultaneously and am planning to make an invisible horizontal loop of fine wire using the mountings for my plastic gutters to

Thanks, Andy, At present, I have a wire loop that goes all round the loft, following the pitches of the rafters. I'm always looking for ways to improve things, and you have given me a few

Hi David, It's nothing special at all - honest. It's a pure 8ft square loop which is fed at the bottom centre via a suitable matching unit in order to transfer as much power into it as possible

Hi Andy, Can you share a bit more info about your loop and its tuning? Especially for the lower bands. Best Wishes David G8XBZ -----Bits of Original Message----- From: QRPLabs@...

Hi Hans, Joking aside, I must admit to being drawn to your website some time ago as I was looking at stuff for various interests of mine. The valve tx being one, but it was more the NBTV stuff that