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I think it could as well be a bug of FT8CN or Android operating system... Some phones limit audio levels to protect ears. And some phones have software DSP filtering to "enhance" audio output

Ouch! That one looks like it's beyond me to change out. If it proves bad guess I'll give it a go, but ...... 73, Cliff, AE5ZA

Cliff, yeah, I am also concerned that this is not the last layer of the onion that needs to be peeled down. Overvoltage on the 5V supply rail tends to take out the PCM1804 ADC chip. Its analog front

Ok, thanks. I like Mouser an they ship for $5 and I get it next day as they are close to me. I'll look at Digikey. If this fixes the PS board then I'm puzzled about what else is not right.

Hi Dave, Steve Just so you know 1) Adjustable CW filter center frequency and bandwidth are on my list; then you can have whatever sidetone and center frequency you want. 2) Semi-QSK not working is

Thanks for all the suggestions... The key clicks are virtually gone after using the AGC settings from /g/QRPLabs/topic/104712439. Thanks for the info on 600 Hz being the smallest

Hello Steve There isn't a setting at the moment but I will add one, it's another thing I already have on my list. Digi is not actually louder, the problem is it is the SAME amplitude as CW. But CW

Ouch! Cliff, I think you found the culprit. Digikey has the AO3415. JZ [email protected]> wrote:

Yes, Q108 is bad. Measurements 20 - 50 ohms. Next question, looking at Mouser AO3415A doesn't come up. I get a PJ3415 to come up. Is there a better part number? 73, Cliff, AE5ZA

I made my own 'battery reducers' from 2A or 3A diodes in series. You don't need a complicated circuit to do this. Each diode drops the voltage by about 0.7V. So, with a 14.4 V battery, and three

I have a cwmorse paddle ("NM0S") that I like fairly well. I've also borrowed one of their more typical paddles: it's OK. I'm also a CW newbie. On the other hand, I built a set of the VK3IL pressure

Phil. Just start by going in at on end of the hole going through the bino and finish coming out of the other end. Bring the wire straight out of the bino then bend it down and through the appropriate

Agreed, Cliff. That looks OK. Try the same test on Q108. Let's see what we have there. JZ [email protected]> wrote:

I've built a few of the vk3il pressure paddles mentioned by the Peters, 1 for each kit, and love them and am probably tossing all my other portable paddles (all 3d printed ones) in the bin to never be

How is L401 + C401/402/403/404 a bandpass filter ? Looks like a series resonant circuit to me, with one L401+C chosen to be passed through IC402.? What are the other components or stray reactances

John, Drain-Source - Starts out at 10K then charges up to 22K+ (same regardless of +/- orientation, Gate-Drain 110K, Gate - Source 99K. Seems good to me. 73, Cliff, AE5ZA

I have several single-paddles (handheld, or with magnets and steel base, or attached to steel base) from CW Morse. CW Morse also has a paddle base that accommodates a leg strap. There is also

Great workmanship and great value: GM0EUL keys. ( https://sites.google.com/view/gm0eul3dkeys/home ) Excellent and beautiful and very pleasant keying: BaMaKeY TP-III (

Cliff , Remove the module from the main board. Locate Q106. Using an ohmmeter, check the resistance at Q106: gate-source, gate-drain, drain-source. All readings should be above 10K ohms. Any reading

Measured with DVM initially then compared to terminal. DVM with 9V input 5.3V and terminal varying around 5V +/- .8v. Measured at the + terminal of C107. 73, Cliff, AE5ZA