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Hi Jerry I was asking for help, because I am confused about these connections. If you want to make comments such as this 'My guess is that you don't teach EE. ;-)' you can go and fuck yourself

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WireUp could be a bit confusing, never quite says how to wire up power. The top diagram shows three places where 12v and GND must go: ?the main Bitx40 power, the PA power, and to the Raduino. ?Tie

How do ya wire up the encoder to the raduino,i done ut like the sketchsays and it doesn't work

How do ya wire up the encoder to the raduino,i done ut like the sketchsays and it doesn't work

Hi Simon where do you see differences in wiring up an circuit diagram?

Hi. Could you clarify this? On the wire up diagram, the Raduino is clearly labelled as getting 12 volts and a ground connection. I am guessing that 12 volts can be connected back to the 12 volt power

I let smoke out of the display board on my BitX by sending 12 volt power to the WRONG orange wire. Very important to NOT put 12 volts on one of the pins of the processor chip, it goes POOF! Seven

I would try to lower the drive using R136 not lower the voltage. -- Ion VA3NOI

It looks like you had a short between +12 and GND. A fuse will help with fire, but it will not protect the electronics. If you have a stable 5V at the output and can adjust the frequency you have a

Talk about the boosted voltage for higher output included a mention of turning down the output by reducing voltage to PA. Anyone have a figure on how low the voltage can be? And does the

Is information available on the changes needed to put the BITX40 on 80 Meters? Thanks - Dave, N4ELM

I think there may have been a short inside the circuit board or something, i moved the chip to the backside and glued it on, then ran wires to different points on the board and it seems to work

Can you post a picture indicating where the smoke comes out and which trace has been blown? That part is a voltage regulator that includes current limitation, so I do not think you have a short on

Volume Pot, no switch ( http://www.ebay.ca/itm/10K-OHM-Logarithmic-Taper-Potentiometer-Pot-A10K-/250840408606?hash=item3a6740e21e:g:ec8AAOxyhtpR58Jx ) Tuning Pot (

My mic also uses a common ground. I checked the grounds from mic, ptt and speaker on the bitx, they all seem to be the same at least at dc. Schematic seems to show the same. I connected the ground

Great idea makes everything automatic, just supply the voltage you want for the final. Also if you use the step up/down modules seems like you could lower the voltage to get low power out for

Yes I added USB and a digital interface to the rig. I used an easy digi?http://www.ebay.com/itm/EASY-DIGI-Digital-Sound-Card-Interface-PSK-RTTY-SSTV-NBEMS-JT-65-HF-VHF-UH5-/220896968460 (

The mcHF SDR kits sold by Chris in the UK (M0NKA) use the STM32, and are CAT enabled using the same command set as the Yaesu FT-817. RichKC8MWG

Lacking a Radio Shack style of store makes the "see, touch and feel" part of your purchase difficult, unless you have one that is still open near you. We have a nice electronics place here in MA. If