开云体育

you can use anything from the website. except for the pcb layout, nothing else is under any restrictive copyright. - f BITX20@...> wrote:

All: I'm giving a talk ("Giving Your QRP Rig a Facelift") at the Four Days In May conference that takes place on the eve of the Dayton hamfest. I would like to use some of the photos of the BITX40

Those who have used an Si5351 to supply both the VFO signal and the BFO signal; I am wondering where you would inject the DDS BFO signal into the BITX40 board. The existing BFO osc could be easily

Thanks Rob, I understood that you were emphasizing the code re-purposed for the Bitx40, but you included the link! I checked, liked what I saw, and was looking for the lazy way to an answer on buying

Kits are due end of January. Rob

Hi Thomas, I'm not aware of any kit problems. I'll contact them and find out. I'm not involved in the kits, I merely posted about the code which could be used with the BitX40 successfully. Rob

Thank you, Ken. Glad it helped. You know, you can get USB and LSB through the same Cohn filter. Remember that the filter is a passband filter about 3 kHz wide with an upper and lower skirt. For

Thanks Rob for useful information regards sarma vu3zmv

John You did an excellent job on explaining this subject. It's something I will be investigating more. Once in a while something comes along that I don't understand and I don't give up till I

Rob, I note all the kits are “Out of Stock”. Are you aware of any plans for continued production? Thomas W Noel KF7RSF

Thanks Bill for your link. Been too busy with work to play with the bitx, but will be back on it the coming week. I will have to go back to messages from yourself and John to try to wrap my head

I checked the drive at the DDS input and found it to be 1vpp. (from internal VCO) I did this because I plan to add a DDS also and have a few. I have 2 of the N3ZI ver.1 DDS and 2 homebrew Uno>9850.

I happened to be working on an MKARS80 which is a variant on the BitX. I realised that this rig uses a Pic 16f818 as a frequency counter with LCD readout and it generates a huff n puff voltage. If

Just a reminder to those using the si5351. Turn OFF unused outputs. They will default to a frequency and as in my case cause 'sproggies' across the bands. You can check using a scope etc. to check

not at all. you will be able to upgrade that as well! just wait a few... BITX20@...> wrote:

So does this mean the Bitx40 board that just arrived is now out of date? What has been updated, is there an update for existing boards or do I buy another Bitx40? Bruce VK2RT

we have been working at an update to the bitx40. i was to give hfsigs the final go yesterday but i have had to stall it due to a family emergency. the new bitx40 will roll out very soon! until then we

http://archive.feedblitz.com/602502/~4780902 Sent: Saturday, December 17, 2016 2:58 PM To: BITX20@... Subject: [BITX20] Help with Digital VFO install Here is my hack problem. I

I too had to get rid of C91 when adding an external VFO.? Details here, in the last couple of paragraphs: Hacking the Hackable BITX 40 Module: VFO is the Way to Go!? | | | | | | | | | |

Haven't tried this but it should be possible to use L4 (taking off a few turns?) as the inductor in the LPF, so not wasting any parts. It could even possibly be done on the board, with a capacitor