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Heathkit used to do this with some of its kits oh so many years ago. Then the concept seemed to disappear into the ether. Congrats to you for newly discovering the concept again. It is a concept

I used the FTDI cable to do it or for the macbook or I run win-XP in a VM (VMware product). The nice part of using a VM contained machine is it isolates everything from the macOS while still running

What voltage are you seeing at the base of Q6 when in transmit? tim ab00wr Kd4epg@... wrote:

Remove your microphone and then check for any carrier leakage at the input of the crystal filter and after the crystal filter. I do this with a RTL dongle. May be your electrat mic may be faulty, Just

Arv, I get the same carrier level in the spectrum analyzer with a tone or without a tone, just the two-tone generator output impedance as a termination. When you say to terminate the mike input what

I don't seem to have much trouble going qrp to qrp at 800 miles. I can't hear em closer than about 300 usually.? Who makes me laugh (and cry) are those who turn on the Linear every time they are on

Here's a few other threads of note: ? ??/g/BITX20/topic/diy_oscilloscope/9617301 ( /g/BITX20/topic/diy_oscilloscope/9617301 )?

I would bet that the mic socket is wired incorrectly. Two of the pins disconnect when the plug is inserted. 73 Dave K0MBT

Have you checked out the Elecraft K2 it also has built in test equipment, it is used for build a stage/test a stage construction. These are great additions to kits for constructors and keeps the work

The cheap Nano clones come with a CH340. If you find a Nano with an FTDI chip for $2, it's likely a clone FTDI chip.? FTDI is fed up with supporting clones of their chips, have taken defensive

Tnx very much for your feedback Ray, 73 Franco

All: Bo made the statement: Never did find the compiled hex files but going from source worked fine for my 20x4 display. It's fairly easy to find where they are placed, along with some other

Gary, Any news on that TR switching scheme you had? It looked very simple and you seemed to be going about it right. But the question remains, did it work? Jerry, KE7ER

Exactly where did you find this data? Most of the forum posts about dead IRF510's seem to be from people who twiddle bias pots for no particular reason. A fuse or polyswitch in the PA-PWR line to the

The Raduino would have survived dont worry. Check the dash contact for any arching damage pitting. If there is then use a strip of paper and polish it. Raj

I made a mistake connecting a paddle, I thought the dash had to be connected to pin 3 of raduino which brings 5v. So when I keyed the dash the LCD shut down. It seems no damage was done, however I

Farhan jee, the FT232 chips are also made in Chaina and they are are problem with working on windows software. Perhaps call them fake FTDI chips Regards MVS Sarma

Yes you can be Hans. It is a great idea. 73, John (VK2ETA)

My rule #1 is "It does not have to make sense" In this case there is no explaining why the Chinese can't write a good driver for the ch34x or why Apple will not do the job for them. ? It is just the

Bo I have a limited time to sit in front of my computer and my reply is late. I am glad I have already solved the problem. You have already solved it, but we will let you know by sharing