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Hi Curt, That is an option. I think the damage occurred while using the solder sucker, I was careful not to overheat with the soldering iron. Those tracks are so thin (A few tenths of a millimeter)

You could also use the AADE Filter Design program (http://w1hue.org/filter.html). Jean-Claude

You could use the Elsie Filter Design program; the free version can use up to 7 components. Jean-Claude

Thanks Curt Will do and will report back to you Marc

Marc Very carefully look at that 4 winding coil that feeds the receiver, make sure each winding matches the picture. Any that are backwards would mess up the phasing. If alo this looks good, well,

Ryan- looking st the manual, that filter should be plenty wide. I'd check the two coupling caps for value and connection. maybe just add 5pf in parallel and see how it sounds 73, -Bob ah7i/w4

Ryan- Try tuning one(C1 or C6) cap a tad low and the other(C6 or C1) a tad high. For example, peak C1 at 7070 and C6 at 7130. This will stretch out the passband.? Have fun! 73, -Bob ah7i/w4

Martin I remember a couple weeks, and this was before the QCX frenzy. Your time may vary and your order was only a few days again. One day you will be surprised by a small box from Japan in the post.

I'm using QRP Labs filters in my bitx40 (it's now and agile!) and while I mostly use digital modes, sometimes I like to use SSB too. The bandwidth on the filter isn't very high, and so currently I can

Eddie Pause and lets not concede yet. I envision you making those 8 connections somehow, with separate wires. Install the toroid on a piece of perf board, anything to hold it. How the wires run

Hello Nigel, Nice enclosure, very neatly done, if you don't mind me saying so? 2E0ILY Tuesday, October 31, 2017 -- Best regards, Chris Wilson (2E0ILY)

I thought there is much talk about T1 let me remove and rewind. That basically reduced my QCX to a Beacon unit. The tracks are so fine that damage was inevitable. Not all is lost. The transmitter is

Hi Ken, yes I was talking about the additional CLK1 LO input signal, I plan to run a 2nd poly phase board to play with Independent side band operation just for fun. in reference to the noise from

I would echo the compliment about Optivisor magnifiers. I got mine, a 2.5X from my father-in-law. Later I picked up a 2nd one that was a bit stronger—about 3.5X I think. The nice thing about

Thanks, my vision to be honest is also not like it was. I did look at it with my small magnifying glass but i do need a visor like yours because its not easy looking through the small one. I have

I've posted before about the header socket pins being difficult to solder (and not worry about it melting). That's not to say you're having this trouble as well, but it wouldn't hurt to go over the

Regarding poor gain, I fixed a friends QCX and the problem was two resistors swapped, a 1K and a 10K that made the gain very poor. I think -90dBm was the weakest I could hear with the fault, and

I had a tough time with seating that T1. Winding it wasn’t bad. Before removing T1, did you go through the alignment process? Do you have a decent antenna? Make sure all the T1 windings are

Greetings folks -? I ordered (order no 13768)? a U3S, 600m LPF, QLG1 and enclosure kit on 26th October. Going by the popularity of these kits I assume that there is a waiting list. Can anyone

Hans you did just great with the audio gain, I'm hard of hearing, and having enough volume is really great. Eddie I'd definitely double check T1 too. 73