开云体育

Reinhard, Possibly PC configuration? /g/QRPLabs/topic/100624101#108489 73 Alan G4ZFQ

We didn't use ChipQuik on hi-rel boards, just the lead cutting/lifting, I should have been clearer with my sentence structure. 73, DOn N2VGU

Hello, my QMX is working now. I didn't have to adjust anything on the band filters. On all bands, the transmission power is about 5W in CW. The sensitivity in FT8 is good and significantly better

Super job, thank you Hans. The app is first class and makes a great companion for a first class little rig too! I am really enjoying my QMX. Keep up the great work. Best Daimon. G4USI

Hans said the sequencing was set for about 250ms. Your plots show the 3.3V Linear regulator coming on at t=0 but something happens to the 3.3V at t=80ms to t=200ms. I don't know what. Then it

Thanks for pointing this out, Don. ?I am well aware of this issue, which is a particular problem where mechanical relays are involved. ?With the QCX/ QCX+, Hans enables PTT 400 uS before the first

Hi all If the rig won't turn off, the question is, what is causing THAT to be the problem? Something must be wrong already with the situation, for that to be the case. Until the radio is turning on

The space between the small transistor Q104 and the larger Q103 does not allow for a form-fit wire of almost any reasonable gauge to fit between the two—much less moving a sharp-tipped iron into

This is very similar to my release of smoke : Please refer to /g/QRPLabs/message/108631 This looks like a?systematic problem!

Hello Daimon Yes, I confirm - I have heard of this issue and I will investigate it further as soon as I have a chance; I have it on my list. 73 Hans

Practice (on other disposable boards) makes perfect

I agree on cutting back the leads where possible (also re solderable after testing) but the ChipQuik for Hi Reliability systems is surprising as their low temperature solder alloy is not fully

Here we found it easier to achieve precise alignment of the SMPS boards if the spacer nuts are NOT drilled out. The reason is that drilling them out, or shoving a soldering iron through them, either

Hans, Just completed my order for 1 QMX Kit + enclosure and received confirmation. Thanks for your help and honesty helping me make my decision. Glad to be aboard,

Hans, in my mind your a great engineer. Scientists (physicists) determine how and why, engineers use that knowledge to create. Member of the Hans Fan Club!

1V/division on the vertical scale, with a -3V offset 50ms/division on the horizontal scale Not quite the full second you requested but there didn't seem to be anything going on further

What are the horizontal and vertical scales ? 73 Kees K5BCQ

Hello Rod I don't know what revision of the firmware you have. It's worth upgrading it to the latest, which has a band configuration screen for specifying the band limits (frequency limits) and which

Hello Billy My apologies, I think I was trying to be clever responding to several people in the topic in one post, but I confused you with the second poster who really was (is) Willie N1JBJ Great

Jonathan, Thank you very much, let me look at it. 73 Kees K5BCQ