开云体育

My U3S has the 5W PA, single band operation and the depth front to back in about 120mm. I don't use the QRP Labs case. But, I'm going say I don't think a GPS board and the U3S with the amp will fit in

Hi Mike The fuses ARE already set for the 65ms start-up delay. There should not be any large power jumps on start-up. It's a bit of a mystery why some people see it and some don't. I never get it

This is a build that I’m actually excited about. When I read about the kit somewhere I was really intrigued with the many features included. Robert (N5RHA) Sent: Thursday, October 12, 2017 2:06 PM

Hallo Hans, I do not have any experience with AVRs. I read in the datasheet that you can set the fuse bits for a time-out-dalay after reset of about 65 ms. This should be enough for the the 100 microH

Hello Robert Thank you; but don't worry about it. I know waiting is frustrating. Sometimes for whatever reasons, our tolerance of frustration is diminished. It happens. I wish you the very best of

I wanted to just send a little note to apologize for my rant about the shipping delays. I have been really stressed lately due to health problems. I hope that none of you ever need to have a liver

Great going, Mikael! I’ve been following your and the other WSPR balloonists’ posts on here with much interest. I’m anxiously awaiting the U3B to appear in the QRP Labs shop, and my goal

You're on an interesting quest Justin. I can't help with any paddle hardware but on reading your message I immediately thought of the "Solid State CW Paddle" from Neno, 9A5N. Maybe this could help in

Hello all- I’m curious if the 5w amp will fit in the 3S enclosure with every option including the GPS board installed, which from videos, appears to require both a 5v and 9v power supply board?

All - please ignore, I have emailed with Paul. But accidentally approved the message sending... 73 Hans G0UPL wrote:

Hi, I subscribed to your group and got the typical emails when subscribing… am getting peoples messages as they add them to my inbox, however: when I try to edit the settings I keep being told that

Yes, agreed - GPS is optional. But bear in mind, you do need precise frequency calibration to get inside the 200Hz WSPR sub-band on each band, and WSPR requires reasonably accurate timing. It's the

GPS module is optional for WSPR. It will sync up the time and will provide the transceiver with a locator. Alternatively, you can enter the time and locator manualy.

Will the QCX work well for WSPR without the GPS add on or is that a real need? MY SN 8XX is coming soon so wondering if the GPS is a needed accessory. Thanks Barry NF1O

As Karsten says: You can reduce the 100uH inductor to 47uH to solve the power-on issue. It does not affect everyone anyway. I have never seen it on any of my dev/prototype/pre-production/production

I am running 1.00b also (and have switch on issue).

John: Winding bifilar or trifilar is easy if you wind the wire beforehand. Take two or three pieces of wire about 6' long and attach one end to something solid. Then carefully align them so that they

yes in reference to the envelope shaping I'm interested what might be applicable to tube amps if your willing to mix semiconductors with valves. -Justin N2TOH

I can tell you cheap Headsets don't have the sensitivity of more expensive sets.? ($1.00 ones vs say $10.00 ones.)? Consequently you will get different experiences from different hams based on their

Hello Paul N1BUG, If you are just using your U3S on 2200m to drive a Class D amp you don't need the toroid at all, just take drive direct from the Si chip CLK0 pin. If you use the very latest firmware