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The Raspberry Pi wouldn't be able to do any of the timing tasks fast enough I'd expect. And there's no reason you couldn't do the CAT via the Arduino. Digital modes though, you could package a R Pi in

Good info Frank. How are you connecting audio cables and PTT to the computer?

I have got a circuit working and have worked 5 jt65 contacts without a hitch.? Will post details tomorrow.

Function button is activated b "Look in void loop and uncomment check button. Been there... Larry Kb3CUF" Courtesy of Larry's reply to my earlier post #24403 Howard

I have to Agree with Ashhar , The BITX-40 wasn't meant to be or try to be a FTdx5000 or any other top of the range transciever, It is a basic radio with minimal controls and functions , I myself have

am_fm_radio@...> wrote: that is not a problem, the rig works as a basic 40 meter rig.

Randy I just about flipped when I saw your post up there. You are the guy who asked Jerry what it was and that was the first time anyone talked about it. And I am pretty sure you saw where David

Received?by BITX40 Ver2 today. Must add it was a quick turn around Ordered on 20 March Shipped on 22 March Received on 5 April (Adelaide, South Australia) Serian no. N3-771V 73 Sasi VK5SN

I changed the drive setting to 2 ma, and the birdie level dropped quite a bit. Still puzzling....

So, how can I try out my bitx40 receiver when 40m is dead a doornail (again)??? Really frustrating when all I hear is birdies.... :-(

Well, it has come to this... I have been reading daily this blog. even read it prior to my BITX40 arriving over month ago. I mounted it on a board, ordered a popular instrument case? for it, plus

again? it is vu3zmv. ?at the end of all, try replacing LM386.

R111 feeds supply to LM386. ?Obviously? it draws more current. ? you might place a 22 ohm 1/4 resistor parallel to R11 without removing it. ?net effect would be 18 oms approx.? ? there is

R111 is indeed very hot. ?When testing it I touched it and was surprised how hot it was.

I'm guessing R111 is shot. ? A 1206 resistor is good for about 0.125 Watt. ?If R111 is still good then it is disspating (12v-0.7v-1.6v)**2/100 = 0.94 Watts. ?As you say, it would be very hot if

Michael Thanks, I have the other posts since Jan. Randy, K7AGE

if the resistor is open, perhaps we can solder lead type across the pads even without removing the smd. all the best sarma vu3zmv wrote: -- Regards Sarma

R111 must be hot, if not then it may be bad. Switch off power and then check R111 on the ohm meter. If it is fine then LM386 is gone.

Thanks Jerry. ?I'll see what I can do to get a new resistor in there and hopefully that will bring everything back. ?I'll update this thread once I know for sure. ?Then we can use this knowledge to

OK, then R111 is shot. ?Possibly a bad solder job there. ?Or a fracture, a hairline crack can be impossible to see.? Possible that it blew for a reason, such as a short to ground at U1-6. ?That's