开云体育

There are some inexpensive components used in mains and industrial wiring called "Ferrules". These are small tubes that are crimped on wires to reinforce them before using them with screw down

Donald S Brant Jr wrote: "At a to-remain-nameless former employer, people started reporting a lot of "problems" regarding a certain program. Management felt that this usage tended to foster a negative

Have you found these cables to be noisy? ?I have one and it’s terrible. I guess it could be the power bank.

Thomas, I’ve been playing with my U4B and have found a possible gotcha:- Connected to external power only Tx ok Connected to USB power only, Terminal not selected. No Tx USB power, program

Hi Alan This is the problem, not enough audio. Nothing else causes the flashing. But he said he has 3 flashes. On the older QDX firmware that means enough audio, on the newer firmware the LED would

My choice: 12V and feed with a buck/boost 4amp switching regulator with voltage and current limit pots FTW? Cheap on Amazon, it takes 7-30Vdc And will output anywhere within that range. I do find

Thomas, It looks as if something could be wrong with the Si5351 as you suggest. Possibly the firmware could have been corrupted, in which case a Factory Reset may cure the problem. Good luck and

I received a rev. 1 kit a couple of weeks ago right before the change over and it had handling damage. To my best recollection, each board was in its own envelope. C213 & R214 were knocked off and the

Mark, This is the problem, not enough audio. Nothing else causes the flashing. It seems a regular fault with Rpi, and non-PC systems. Previous posts my give answers, most seem to resort to reducing

Hi John, thanks for confirming the command. This is a friend's u4b, that should have been working. Anyway after some further investigation: The SW_SYNTH line is asserted correctly. The TCXO does

Hello All, I purchased and built a low HF QDX and modified it with the JasonKits MOSFET PA. I am to the point of frustration trying to troubleshoot why the radio is not TXing. It seems to receive

Folks, I set up SKCC Logger for the QMX+ rig a couple of weeks ago from some setting info I found on groups.io (that I can't seem to find tonight!!).? Ive only run it once since, and **thought** it

Paul, I agree with you it looks like its the LO leaking thru ?BUT... 1) He bought this NEW ASSEMBLED. 2) one of the LPF toroids was completely disconnected because of a broken wire solder joint and

After blowing the finals in my HB QDX, I used the zeners per https://la3za.blogspot.com/2023/04/3-tips-for-not-blowing-finals-of-qdx.html (

Well, I guess I wasn't careful enough. I broke the lead off the Q507. I'll be back after I get a new one installed. Thank you so much for helping me through this point. I'm confident we'll figure this

This tuner has no bypass.? My antenna is in the neighborhood of 1.3:1 without, I think on both 40 and 20.? Just wondering how far I can push it. Bob KG5GTE

There might be several possibilities... * The QMX uses a 12kHz IF (and there's no RF amp to isolate the mixer) so you could be hearing the local oscillator... (if this were the case, there

That`s Scott,? was going to try your advise,? but after testing for power output which was 4.9 after repairs to L2 , I found that when turning on the QCX Mini I was getting a signal on my IC-7300

Sometimes the length of coax you are using will do this.? I recently made a 49:1 for an end-fed half wave and installed the antenna.? I couldn't get it to dip anywhere at all.? I checked the coax

I looked and found one thread on the subject but did not see Hans give any definite answers.? I know 1:1 is prefered and best, but the real world doesn't often give us that.? I ask because my 4SQRP