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The 60 meter hack sounds really good to me, I have plenty of 40 meter rigs already, I must look into this. Joel KB6QVI

I'm not a fan of "magic numbers" in code, as it makes it harder to read and understand what's going on. So, near the top of the code file, perhaps around line 100, and after the #include preprocessor

This is likely about as good as it gets: ??http://www.hfsigs.com/bitx40v3_circuit.html ( http://www.hfsigs.com/bitx40v3_circuit.html ) A few minor changes: ? The two diodes D15 D16 are now a single

Hi, My BITX40 PCB measures 114.3 x 128 mm. But in case you will leave on the cooling profile on the PA FET you need an extra 5 mm. , making it 120 x 128 mm! 73, Cor PA4Q

Fred, regarding raduino, perhaps (even for both PCBs) Farhan is the right person. wb7odyfred@...> wrote:

ND6T has a very cool hack to put the BITX Module on 60 Meters: BITX Hacks | | | | | | | | | | | BITX Hacks Modifications, Hacks and Fun with the BITX40 boards | | | |

Thank you for the PNG files of the schematics.?? Do you have the mechanical layout of those two boards dimensions and hole sizes and hole mounting positions (x,y in milimeters)?? I am creating a

http://www.hfsigs.com/bitx_with_raduino.zip All the best P JH sarma vu3zmv -- Regards Sarma

Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the [email protected] group. *File:* lcd_Metalbox_bottom.dxf *Uploaded By:* Fred Finster

Gentlemen, I have looked at a number of schematics but do not seem to find the one matching the current Bitx40 R3 transciever being sent from India. Could someone please point me in the right

No Raduino here, but do have a Nano to play with. ?Here's a code scrap to replace that final clause in doTuning() to give the tuning pot a bit of hysterisis. ?Perhaps somebody could try it out. //

The birdie heard at 7.199 MHz in my analog VFO board is faint. Not a bother at all. The birdie tunes at 5x so it occupies just about 1KHz. All the additional bypass caps must have helped. Next week

There is yet another way with the Raduinos : Use another clock output directly at the transmit frequency. inject it between the RF amp and the bandpass filter. You will have to key it on and off, of

*"...I really do think this is the best ham radio interview I have ever heard. Congratulations and thanks to Eric and Farhan." - soldersmoke.com <http://soldersmoke.com>* *Here is the link:*

http://soldersmoke.blogspot.com/2014/06/a-new-look-at-bitx-carrier-suppression.html Is this the link? iam74@...> wrote:

Thanks very much for this, John. For the record and/or posterity, I was unable to get a full 1A from HF Sigs' board #869. I turned both R136 and RV1 fully clockwise, then opened RV1 until the Fluke 87

Collins injected an audio tone into the mic input. or so I have been told. Is this as easy as hooking your code oscillator to the mic input? Buck, k4ia Honor Roll 8BDXCC

John U may want to check W5KUB group on Facebook. Tom Merlin post his design yesterday Art Sent from my iPhone

Has anyone succeeded with adding CW properly? I have seen several possibilities on here, but no working examples. If yes, how did you do it? Or is it just impractical, like making milk from chalk and

Since it's not a frequency dependent circuit, you can probably use a FT37-43 with 10 turns trifilar. 73 Ken VA3ABN