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After all these years sometimes I get to forget! You have a carrier frequency which you send to a mixer then mix it with some audio then you end up with one central carrier and two side bands of

Quite often the compiler issues a line number that is a long way from where the error is. Because C is a "free form" language, the compiler parses the code as long as the next token that it sees is

I know a bit about electronics but not enough apparently!

My mic cost me $0.87 to build from the parts that came with the B40. (See pix.) The mic cord is an old telephone cable from the house phone line that was lying around. While its construction is pretty

Dwine, A quick fix would be a speech processor. Or you could add a bigger heat sink and change the final voltage to 24V and get a bigger signal! Raj

Is the grounding of the red wire(calibration)is no help in this situation? Sent from Yahoo Mail on Android On Thu, 23 Feb, 2017 at 7:49 pm, Raj vu2zap<vu2zap@...> wrote: Correction not

Hello OM Sarma,i already did that,but still the mic audio output is tiny accordingly, Sent from Yahoo Mail on Android On Thu, 23 Feb, 2017 at 7:45 pm, Mvs Sarma<mvssarma@...> wrote: try

I have no freq.counter and spare rx rig,,but anyway thank you OM raj for the info.,73` Sent from Yahoo Mail on Android On Thu, 23 Feb, 2017 at 7:34 pm, Raj vu2zap<vu2zap@...> wrote: Yes,

Correction not CW but USB/LSB. Just woke up from a nap! Yes, you will either need a frequency counter or a commercial Rx or Tcvr. You can put a short wire from commercial Rx/Tcvr as a pickup near

try replacing the mic element . Perhaps you might get one at home from PC headset or any such utility. ensure that the mic is connected in right direction. dwinesumalpongjr@...>

Yes, you will either need a frequency counter or a commercial Rx or Tcvr. You can put a short wire from commercial Rx/Tcvr as a pickup near the BITX and tune around 12Mhz to get the BFO carrier beat

Hello raj,How to check bfo frequency?is there a need special instruments? Sent from Yahoo Mail on Android On Thu, 23 Feb, 2017 at 4:51 pm, Raj vu2zap<vu2zap@...> wrote: Check the BFO

I'm going to try this?http://www.qrpkits.com/wallwarttamer.html ( http://www.qrpkits.com/wallwarttamer.html )? from QRP kits to see if that eliminates the noise.

Why not this one: Electret Microphone - Pacific Antenna RichKC8MWG | | | Electret Microphone - Pacific Antenna By Dean Davis Pacific Antenna. | | |

Check the BFO frequency. 11.9985 MHz. If you have full power then your signal is fine but if the BFO is off then the voice can sound bassy or tinny. Maybe thats what was meant by weak audio or simply

i will trace it again john,,that`s what make me wonder during QSO.,they told me i have very weak audio., 73` Sent from Yahoo Mail on Android On Thu, 23 Feb, 2017 at 4:21 pm, John Smith via

Ya got me licked. Do you feel like there is not enough audio signal being produced before it goes out to the antenna? If yes, then that's what I would have told you and everyone else. Did you say you

Hello john, I already did that,adjusting R136 and RV1 and it gives 5-6Watts output but the problem is that my audio is weak.replacing new emc make no changes,, Sent from Yahoo Mail on Android On

Try adjusting R136 a silver trimmer on the same side of the board as the PA near the corner. If you rotate it counter clockwise it will increase watts output. It's best to adjust it up to the point

Do you mean that you have low transmitter output? ?If so, could be that you need to bump up the gain at R136. ?See post?/g/BITX20/message/22112 (