Really interesting video John. Your knowledge knows no bounds! Keep 'em coming! Wishing you a very happy Christmas from Chris G0VOE in Somerset. (In Derby tomorrow to visit the family).
Wow, great video, why oh why do screwdriver wielding idiots have to twiddle, especially the service menu how did they even know to turn everything up ?? just goes to show these people need to stick with their 40 channel CB radios and stop buggering up HF sets for that extra 20w on 11mtrs. Cracking job as always, you Sir are the Man..!!!
I have FT 450, stead of putting certain level of audio signal and press button to do auto calibration, I prefer manual method by changing the number. better yet, POT Variable Resistor are the best like older radio. I made audio generator with isolation transformer and put 1/50 voltage attenuator , so I can measure peak voltage with cheap oscilloscope. 4mV is difficult to measure, but I can measure 0.2 V peak just fine. AG6JU
Yes I totally agree, I also think that a trim pot would be the best method. 4mV is a very small signal and using an old RJ45 ethernet cable probably isn't the best way of doing this. Thank for the comment. M0XFX
Merry Christmas John to you and Family
And to you mate, thank you.
John - lovely troubleshooting. Rf engineer/ham here. Love your narration and immense patience
Merry Christmas John
Merry Christmas John nice fix
Tony, merry Christmas to you too.
Another great video John. Like the sound clip at the end very appropriate for this radio 😂
haha, yes I thought it was too. Glad you enjoyed the video.
Really interesting video John. Your knowledge knows no bounds!
Keep 'em coming!
Wishing you a very happy Christmas from Chris G0VOE in Somerset. (In Derby tomorrow to visit the family).
Thanks John, 👍🏻
Wow, great video,
why oh why do screwdriver wielding idiots have to twiddle,
especially the service menu how did they even know to turn everything up ??
just goes to show these people need to stick with their 40 channel CB radios and stop buggering up HF sets for that extra 20w on 11mtrs.
Cracking job as always, you Sir are the Man..!!!
FT-450 can do 180 watts at 3.5 MHz , but 120 watts is barely reachable at 28 MHz AG6JU
I have FT 450, stead of putting certain level of audio signal and press button to do auto calibration, I prefer manual method by changing the number. better yet, POT Variable Resistor are the best like older radio. I made audio generator with isolation transformer and put 1/50 voltage attenuator , so I can measure peak voltage with cheap oscilloscope. 4mV is difficult to measure, but I can measure 0.2 V peak just fine. AG6JU
Yes I totally agree, I also think that a trim pot would be the best method. 4mV is a very small signal and using an old RJ45 ethernet cable probably isn't the best way of doing this. Thank for the comment. M0XFX
hello sir john.. can you send me a diagram of a kenwood ts 770... or mic pinnings.. thanks godbless
It's on page 5 of the user manual. pin-1 mic, pin-4 mic ground and pins-2&3 PTT switch. I hope this is of help.
bet its widebanded too :/
Oh yes, it was certainly wide banded