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Based on the known data that if the gain falls with increasing frequency the fix is obvious. Use devices that have better performance over the frequency range.?? The fix the problem approach is

Ever since I have been using cat control for FT8 on the CEC firmware. I have been having intermittent lockups involving the usb port. I have a work around it seems that I must have been getting some

Allison, Getting the analog stuff to where it is flat from 3.5-30mhz is preferred if the mods are easy, we much appreciate your efforts in this in this regard. However, gain per band can be done with

A few things I found with my Bitx40 and Ubitx. Turn the drive down in the rig itself for digi modes, also check for any kind of ground looping. When I was 1st running my Bitx40 I ran r136 at half of

Jack, ? Thanks for that info, I will have to try that. I am still debating the analog style vs. the bar graph. I think analog looks nice if done right and I am going to give it my best effort but if

You are absolutely right. We had similar discussions for the Raduino sketch for?BitX40 at the time. During TX the frequency shouldn't be shifted - the actual TX frequency should be?equal to?the

Initially, I had an analog S-meter on the JackAl board, but changed to a bar meter, mainly because I was running out of nano-acres. You can make the meter look "less jerky" if, when you compare the

HI Rahul, Gain per band has been widely used and work save for its rarely cheap and tends to add a lot of circuitry. Equalizers are well known too.? For the astute may notice I'm taking that path. To

I have also started to play with my 3.5 inch display and so far i am good with the results. The only part I am not sure about is how to do the serial coms from the raduino to the display. The attaced

This seemed odd to me, too, but since I'm not an EE type, I simply assumed this was the way it's done and jumped on the bandwagon. I worried about two hams chasing each other right out of the band,

I think there is a library that accounts for this, but I don't remember which on it is. A little Google time on the Arduino programming Forum might pay dividends. Jack, W8TEE

Alison, You have put in some remarkable efforts in gain equalisation and I fully realise it is not a trivial task. Over years I have seen many application's struggle with this. 2 methods that come to

Hi, I was recently puzzled about why my transmit frequency seemed to be about 1khz low on 80M. I was doing what seemed natural, using the CW key to key up the transmitter into a dummy load and check

Thanks for the help, Nick.? I think I will wait until Allison works out the flat power output problem.? 15 meters is my favorite band. 73, WA9PWR

jack,I've seen rigs like yours burn just like that and they were commercially built. don't feel so bad. it happens to us all eventually. 73sdavidka9koj? Sent from Yahoo Mail. Get the app

Sent from Yahoo Mail. Get the appjerry, you are right a gnd is a ground all the way around. yes the fuse will help on providing a path, but like i said , i would protect it before the fuse because

I believe Kees is kitting these up for 0805 parts. The 0805 parts are included with his kit. An 0805 is 0.08 inches long, 0.05 inches wide. Rational countries use metric numbers to identify surface

On a somewhat related note, that code of post 44278 conforms with the stock uBitx firmware in that it keeps the BFO on the low side of the 12mhz crystal filter. This was done to avoid having audio

Should the caps and resistors all be 1206 size?

There are 2 pole and 4 pole variants of that 45mhz crystal filter. HFSignals is probably using the 2 pole. If this method of transmitter attenuation is to be used,? would be best to keep using the