开云体育

John , I have tried this mod using a MPSA92 TRANSISTOR AND A 2sk68a fet but did not reduce the POP much but it sure reduced received audio . Will obtain some 2n7000 and 2n3906 and try again Bryan

Hello all and thank you for adding me. So the new bitx40 arrived at home on friday and is all wired up and running. The xyl has been very patient. A few spare wires left over I'm sure I'll find a use

Very nice !!! Joseph f1pfc.

You need to use inductor and 1000uF electrolytic close to fan -- Regards Sarma

Checked in to the 40M late Net tonight - Net Control was K1YAG in Fredericksburg TX. for 1657 miles.. Had several other unremarkable contacts confirmed, then got K4CEA in Columbia SC for 2920 miles

Back to the original topic of how to power the Raduino during update. (I just posted my final solution to the fan noise in that thread; ignore what I said earlier in this one). I got to the point

I too was having trouble with fan noise. Been playing with it all week! I have an 80mm (3+ inch) 12V brushless fan. I put a 100 ohm 2W resistor in series with the fan and a 680uF cap (that's what I

Sorry for the delay. Yes try that mod.

I'm in the process of putting my BIT40 together (it showed up Tuesday) and finally have the front panel finished enough to power up the Raduino. So I put a freq counter on the DDS output and tuned it

That makes sense... Jack, W8TEE To: [email protected] Sent: Saturday, June 3, 2017 9:26 PM Subject: Re: [BITX20] CW on Allard's Code v1.13

I guess this is just to save two I/O pins? Anyway it would require some extra code and I wonder if we will be able to implement this as we are running out of program space and dynamic memory. 73

Hi Charlie, The current code only supports straight key. Of course you could also connect an external electronic keyer to the CW KEY input instead. 73 Allard PE1NWL

Decided to pimp my BitX40.... Just some LED strips in my temp case. :-) Joe, KD2NFC Sent from my iPhone

Hi, This is my first post to the group. I recently purchased a BITX40 SMD and really like it. So much that I was wondering if someone has converted it to other bands such as 15 or 20m? Any info would

Ok Charlie, Thanks! 73, Kevin NZ1I

It is used to adjust the PA drive.?? See Alignment of the BITX40 at http://www.hfsigs.com/bitx40v3_wireup.html

I'm curious why not two I/O pins using the internal pullup resistors and a dit() and a dah() function? Jack, W9TEE To: [email protected] Sent: Saturday, June 3, 2017 2:50 PM Subject: Re: [BITX20] CW on

Maybe a dumb question but I would like to know what is it supposed to do this 100 ohm trimmer

I envisaged the same line to be used for straight and paddle keys. here is how : 1. the morse line is analog input pulled high by an external resistor of 4.7K from 5 volts. 2. the straight key is

Hi Allard I am currently putting together a bitx with your mods implemented, however I can only see a straight key implemented. Can I connect a paddle (using another input for dots) and would the code