Yes, J1 and NOT j2. Anyway , the circuits works very well for AGC and the s-meter function. Thanks for it and K5BCQ for putting the kit together at his cost. Ralph ku4pt

As mentioned you do need a good stereo microscope. I use one of the better low end ones by Amscope se4000z for just under $ 200. It comes with 10 and 20 power lenses. I most often use the 10 power.

I’ve thought about these amplifiers, also. Despite the negativity around them, I think the only thing that’s missing is the low pass filters (the ones biased for linear operation). I’m thinking

One more comment Anyone found a good cutout panel for the 2.8 display? I'm terrible with a hacksaw. Bo W4GHV

G8HAV What changes do you see on the LCD when you press the CW Key? Can side tone be heard through the speaker? Ian Kd8CEC 2018-06-11 22:27 GMT+09:00 G8HAV <g8hav@...>: -- Best 73 KD8CEC / Ph.D ian

I built one but doesn't look as nice yet. On the bench for testing. Thanks tips. I only have one buck converter for the mega Going to 'scope out all lines soon. Is the cap.22uF or 0,44uF? 🤔 Bo

CW-Tone is user side tone and does not modulate the transmitter. CW-Key and a change of frequency to the Si5351 does CW transmit. This is fairly unique and provides a clean CW transmit. So for CW

Hi, Having built the uBITZ and been checking receive and all is well. Loaded KD8CEC version 1.8 and checked receive again. Now tried CW TX but got no power out. Read all the topics on a previous 'No

Agreed. Sorry

One of the easiest ways to remove a blown IC , If your not to confident in soldering , Take s sharp pair of side cutters, Cut each leg of the IC close to the IC main body , Remove the actual IC , Your

Pin 8 at the bottom is not connect anywhere there. Its connected to a capacitor C75 on the top plane. Check there. Use a little higher temp. and clean up the board. As I said mount the socket on the

Much appreciated Mike. Will be putting the entire box together this week. Going to use Baofeng mic as well.

Attached is a V4 pic for anyone who is curious! Cheers -- Raj, vu2zap Bengaluru, South India.

Hello. It doesn't look like that pad went anywhere on the bottom of the board. If you soldered your 8 pin socket to the top pads, it is likely going to work fine. Give it a try and see if it

Thank you both Raj and Sharma. Did it both ways - cut at tips closer to the chip. But either the solder iron is not too hot - I kept it around 200c. Anyway, i then did the old fashioned way by wiring

Mulgrave is 3MP on 1377 kHz. So it would be a good test of the filter. Was listening with it tonight and all was good. Could hear interstate stations on 1548 but not local stations below about 900

Hi Peter Yes I guess that might be a bit better although I haven't listened much on my rig so far to know how bad the BC is here. I am in Narre Warren Sth. I think the nearest BC station Tx is at

Mark, Ian's circuit is not DC blocked at the output of the LM386 so it will not be zero volts when there is no signal. The simple diode circuit is found here. If you use my AGC circuit attach the lead

Back in the day, before the Internet, before hard disk drives (we used floppy drives then), and before GUI I began networking with a 110-baud dial up modem. Then when the Internet was beginning I used

Thanks Glenn! I do wonder whether 680pF would have been better than the 820pF I used - might shift it up a little which might be desirable for those near a powerful station around 1.5 MHz (in VK most