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Gary, With no load at the antenna port, the simulation shows an IRF510 drain current that stays near the quiescent 100ma with perhaps 20ma pk-pk of RF riding on top of it.? (An initial spike that

I do have 12v at pin 2.. I was able to key up the P tt and use a keyer to transmit...they key word there is "was"..now the display just reflects the u bitx version and stays there

Hi Mike, Thank you so much for sharing this with me! Congrats to the whole group! As for the board corrections, I'll integrate them in the next revision as soon as I manage to finish building V1

This is w/o the pre-amp .....might just stick with the slight yell to get the audio out. I like the idea of not having to shout but do not like the audio from this version of

The relays in the ubitx are the same as the ones used in the BitX40. I used Zettler AZ822-2C-12DE as a

The relays in the ubitx are the same as the ones used in the BitX40. I used Zettler AZ822-2C-12DE as a

Would the Ormon G5V-2-H-DC12? relay be a valid replacement for the relays in the ubitx?

Congratulations to the author at first glance seems OK. But what is the 14.150k on the first line of the display?

I'm working on something similar.? It looks like Q6 is part of the ?B's mic pre.? When TX goes high, Q6 turns on and passes the signal into the mixer and so on.? RX also goes low and turns off

I find it's easier to get the strip started if I put down a strip of double-sided sticky tape on a piece of cardboard, put the carrier for the SMD on the strip and use a small piece of tape on the

I used another mic housing with a DPDT switch and wired it so voltage is supplied only when PTT is engaged. I am using a CR2032 3v button cell. Seems to work fine, but I have not compared the stock

Which STM32??? There's a whole bunch of them, from Arm Cortex M0's to M7F's. The M0 is extremely cheap, can be well under a buck for the chip. The M7F has caches,memory mapping, and floating point,

Although not strictly required, it is recommended to remove C91/C92 for better performance in USB mode. C91/C92 used to be required for the analog VFO. You can safely remove them when the Raduino is

I am running a old Alpha version of 1.18 I have not upgraded in a long time. -- David ?N8DAH Kit-Projects.com ( http://www.kit-projects.com )

The inductors for the Bitx40 are described by Farhan at the bottom of ? ??http://www.hfsignals.com/index.php/2017/11/23/bitx40-circuit-description/ If you want to buy cores, I'd first look at? ?

Might be my problem too as discussed in another thread here today. Missed that C91/91 removal in the latest sketch comments. KC9SGV

Fred: Are you running the Nextion from the STM32? No driver issues? Jack, W8TEE To: [email protected] Sent: Wednesday, January 31, 2018 2:13 PM Subject: [BITX20] Nextion Display I may be late

I had reports of it being muddy. I will try and make another recording w/o it and try and get it posted when I have more time to play with it. Over all it seems to be an improvement but will have to

Umm, actually he will need to go from Farhan's stock firmwre to v1 or v2 of Allard's firmware. Either that or hack the analog BFO such that it operates 3 or 4 khz higher than the usual

I use Raduino_v1.27.7 for BITX40 - Allard Munters PE1NWL What is that ticking noise with the DDS knob stationary ? Bernie, KC9SGV jjpurdum@...> wrote: