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Correction to my previous post: The dynamic range of this S-Meter will be greater than just the range of the diode detector, since it is throttling back the RF gain control as the audio level rises.

It may even be more complicated in some cases. Using the statement: pinMode(myPin, INPUT_PULLUP); activates the Arduino's internal pullup resistors. Their purpose is little more than making sure the

Mark: I think you missed my point. I think all of us agree with you and what you're saying. Indeed, many of the S meter implementations are really Vu meters, not S meters, which is kinda my point: The

As an experiment, what is the analog reading when no button is pressed, and when the function button of the encoder is pressed? It should change from a high value to a very low value. Looks like, for

Guys...I understand that S meters are mostly subjective and it's certainly not a necessity but everything else works so well and the capability is there so why not try to get it to work? I'm not

S-meter readings won't mean much until we all standardize our antennas. Officially, an S-meter measures the signal power going into the radio. But of course, all the cool radios have one so the uBitx

Are we rearranging the deck furniture on the Titanic here? How important is it to provide an S meter reading down to the last dB of the log scale? I recently worked a contest running 80W and I was a

Mark, If you do not require calibration to a standard I would suggest you set your lowest value (mine is set to 2) and your highest value (you measured S9 at 50 uV in that gives you 1.6 V) at one

The s-meter wire goes to the pin at the hot end of C4 where the pins are. Here is what I got, don't recall the frequency. .4 volts for 50 uV or -73 dbm 4 volts -40 dbm 3.9 volts -50 dbm 1.8 V -60 .55

Hi Mark. I cant help, but I am in the same boat. I have built 3 (1 diy, 2 kit) of these boards in 2 different uBitx, and I don't think mine are working... On local nets I still get blasted by close by

I have Don's & Kees' AGC board in my uBitX and am trying to get the S meter function in Ian's firmware working. I've been using the S meter helper in the Manager to try to set some meaningful values

I have the same difficulty with the iambic paddle setup.? I am only getting readings of 4 and 6 in the ADC.? I used metal film resistors, could this cause this kind of problem? Dan, W2DLC

Board fab shops give their design rules, perhaps something like: ? ?minimum 10 mil drill size ? ?minimum 5 mil annular ring of copper pad around each drill hole ? ?minimum 6 mil trace width,

At a recent Radio Rally in the UK I happened acrosss a unbuilt uBITX kit and matching metal case. The case is punched for a tx/rx bi-colour led and thanks to this group I have found the wiring needed

Vias are frequently smaller than most component holes. I suspect the small size tends to prevent the plating solution from getting in thoroughly due to surface tension. Clark Martin KK6ISP

Clark Martin KK6ISP This is an oft reported issue with Baofeng speaker mics. It is supposed to be that way to make it water-resistant. But I think making it sound-resistant kind of defeats the

If impedance, crosstalk, or voltage are not an issue and the spacing meets the criteria specified, no, I don’t think it matters. Aesthetics (typically) isn’t a design issue in PCBs, at least not

Funny thing, I just finished checking a fairly complex PCB layout (not Ham related) for a product I am developing. I notice that many places where a trace runs between two pads, it is NOT centered,

I ordered the $12 tuner kit from the same supplier as these 70 watt/100 watt amps being discussed. I considered the $18 amp but took a pass because too many other chores to do. I am glad I did take a

Ken I already have a small bag of electret microphone cartridges that were purchased from several on-line vendors way back when we were working on the BITX20A and BITX17A design. My interest in the