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Thanks for the Heads up, man this community is amazing. I really appreciate all the help.

Important!? Before you install the new PA turn RV1 fully clockwise and do the same with R136, the silver trimmer near the corner on the same side of the board. You might need to have it turned up a

I bought a couple of these and I'm putting my BITX40 in one. These are great with plenty of room. I'll post some photos as soon as I've finished. Roy WA0YMH [email protected]> wrote:

Ok, I pulled the IRF510 and hooked up power to PA. The receiver functions just fine now. I went ahead and did some voltage checks while the mosfet was out. Voltages on the board where Gate would be I

I ordered the plastic one from Bangood about 2 weeks ago. Not sure when to expect it.? Sure looks unbeatable for the price. donfrasher@...> wrote:

I bit more expensive but this is the one I ordered: SC1063B 10" DIY Electronic Metal Aluminum Project Box Enclosure Case | eBay Arrived very fast, Was boxed very very well. ?Gives enough room for

"My vote would be to have a current sense for the final in the next rev of the main board." Well...I don' know, Jerry. Consider the size of the TP-42, or any current shunt capable of over 2A. The

My vote would be to have a current sense for the final in the next rev of the main board. ?That way there is no additional high current switch required, all we need is some control circuitry to shut

This would work. The idea of a current limit is a good one. However, in the BITX40 it would have to be on a separate board with additional wiring. That opens up the problems of ground loops and

Good evening, friends.I found at www: Ozqrp.com. A DDS Si5351A-B-GT clock generator, with an interesting OPTIONAL ATTENUATOR LOW PASS FILTER BOARD. This could be the solution to the carrier problem at

John, you are absolutely right in How/when it happens. as for RV1 mine was cranked almost all the way up (turned almost all the way counter-clockwise) I am going to try and pull the mosfet tonight and

True, Jerry. He turns on power, the rig clicks and turns off, and after REMOVING the PA power, RX is ok when power is applied. This is almost certainly the output transistor going into avalanche.

Hello all, Has anyone thought about implementing something like this to protect the IRF510? I am still waiting on a reply from the post office, to see where mine is. It looks promising, especially

I just lifted one of the L4 connections to the board and left it in place all be it not connected to the circuit at on end of the inductor. DDS works fine with no known issues. -- Mike VK3XL

Near as I can tell, he never hits the PTT switch to transmit. ?And the IRF510 is still heating up. I did tell him that the gate to the IRF510 should be zero volts during receive. ? If it isn't then

Guys thanks for all the input. I'm going to be doing some more troubleshooting tonight and we shall see what we come up with. I've ordered some irf510's just I case but I am highly suspecting that is

Mine at first was off by 1 in the digit furthest to the right. Used it like that for a week then tried the recal process and it worked fine. Havnt had to adjust it since. This is on stock sketch.

Regarding the IRF510: There is no power on the gate on RX, but there is power on the drain, whether the connected PA is to the to the Vcc source or another power source (though it is possible to have

The blink program used to be (and still is) a separate program. However the latest bootloader program has a blink function included. If your Uno or Nano has a blink, but nothing else, it's likely

I knew it was writing to eeprom but there is no matching call in the code to read it back. Either to apply it or pass it.? Neither does the library call it.? It can't possibly, how would it know