Hi Jerry, Which transistors are in the finals of this kit you bought? I'm using a BLF9120 based kit I bought on aliexpress, it works pretty well, but up to 100W at most. Rafael PU2UIT

This is how I use the LPF setup for non-hams usage. void setTXFilters(unsigned long freq){ if (freq >= 21000000L){ // the default filter is with 35 MHz cut-off digitalWrite(TX_LPF_A, 0); digitalWrite(

Thanks Evan - will do the checks!

Hi Evan, Thanks! It is the v6. I changed the firmware - I double checked the code I'm using, and " digitalWrite(PIN_TX_LPF_A, 0);" is there in the lower bands. https://github.com/DigitalHERMES/ubitxv6

Hi all, Is the KA1 lpf to be always on even on 40m and 80m bands? I feel there is something strange... Thanks, Rafael

Thanks Thomas!

Hi all, Do you know who is the sales contact of HF Signals? I could not find the sales rep in the website. Best regards, Rafael

Thanks!!

Hi Mark, I think you are right. What is the RV1? (sorry the newbie question) Rafael

We built a 4.7 db attenuation circuit to connect to a MRF amp. Not what we want, definitely. ; )

HI everybody, When transmitting an OFDM signal with 8W until 10W with the ubitx v6, the output signal is crystal clear, but when I start to reduce the signal level (from a line-out of a computer), at

Do you mind to publish your code on github? I can do it too, but wanted to know if it is fine for you. Rafael

Hi Mark, Did you publish somewhere your code? Rafael PU2UIT

Hi Ashhar and Mark, The code is very easy to follow and modify. I plan to use Free RTOS for custom uBitX firmware for serial-only usage. With Free RTOS API I can get rid of random checkCAT() calls aro

Thanks Ashhar! I'll follow your recommendations, and just use bigger sizes. Rafael

If anyone knows about good big fonts for arduino firmware (just numbers and dot are good enough for start), let me know. With the fonts in the default firmware I can't see nothing, I mostly use CAT an

I use arduino on Debian 10, and the version in the repository is old, indeed, but installing directly from arduino website works pretty well, I never had problems with compiling or uploading code to t

Rafael, Did you publish the code somewhere? I think I missed the link Thanks! Rafael PU2UIT

Thanks a lot Rafael! Just one last question - when I connect the osc2 output of the si5351a to the D5, should I interrupt the osc2 connection to its normal path in the circuit? Rafael

This is good to know, Rafael! Which pins in arduino nano have you connected the SI5351 CLK2 and the PPS signal? Are you using both PPS and NMEA outputs connected to the arduino? Abraço, Rafael Diniz