BTW, is there a way to edit posts once submitted? I would like to make a minor change but don'ts see a tool for that.

This circuit is an audio envelope detector - it provides a dc voltage that corresponds to its input audio voltage. This is then applied as a gain control signal to a "voltage controlled amplifier" of

John, could you point me at the website for the case? 73, Paul K2AYZ

This should work well Hidheiko-san. 73, John

TKS John, OK all about how to activate the S-Meter. Well I will try the AGC voltage from MAX9814 MIC AMP Board you introduced before. And I've ordered to eBay as blow

Hello Hidheiko-san, The S-Meter display needs to read the level of AGC or an audio level from pin A7 on the Raduino (the unused pin on the Raduino connector). In the program it is shown in file

Mni tks Rod!!! 73's de IK2YRA 2018-04-06 19:09 GMT+02:00 wishbone_aaa <dlmock@...>: -- Carlos Wenzel ik2yra@... +39-3284684518 Skype: IK2YRA

Hello John, Thanks for tour modified firmware. Well I tried the latest version and had a success with uploading arduino. I can see the S_ meter display but its level up to maximum and I can not hear

How long does it take to ship to US? Need a price on 2 boards plus shipping to US. thanks

I ordered mine on Feb 17 and a paypal shipping notification arrived today April 6. Coming DHL.

Tried to solder the On/Off switch to the PC board today. Melted the plastic on the switch. Anyone know a decent replacement for it? It's a nice case, I just need a new switch. -- 73 de W5NNH

I ordered one today and chose the DHL option. Taking technician and general next week. I hope it gets here right about the time I get published in the database. >

Mine was ordered Feb 10th, and arrived by DHL today.

I ordered mine on 15 Feb and a shipping notification arrived late yesterday evening (6 April 18). Paypal have a shipping notification on the transaction that was not there earlier in the evening.

Thanks for the input guys! Doug, the short answer is I was going by ear and by eye-balling the waterfall. I also made the assumption (bad to do sometimes) that the USB sound card had built in

Hi Rob, Didn't get them, just "crafted" them (smiling face here). For the first one, I started with the zero beat calibration procedure, as per general instructions. I noticed

Yeah something is wrong with that circuit… there is no AC path for the audio… there is a DC low pass filter amplifier but that’s it? Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ

Don,t see how it would work. All you would get on the output is a DC level, related to the audio input. Philip G7JUR

I wanted to let you know that I entered your calibration numbers into my uBITX and have fixed by WSJT-X offset issues. I was ~85Hz off at 14MHz and 45Hz off at 7MHz, thank you for the numbers...where

I had a Xiegu X1M a while ago (long since sold) and I used this circuit, which worked quite well. (See attached) I don't see why it couldn't be added. I ordered my uBITX some weeks ago and I'm still