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Hi, Not to complicate matters, but in old posts I've seen two different inductors being discussed:? 680nH ones on a filter, and 680uH ones placed on the relays.? Has anyone tested either of those

Raj, l don't want to have to buy 100 off eBay, so that's why I am looking to find the parts on the group. Regards, Dale

I've tried similar ones and they DONT work. The issue with the original toroids is that their leads seem to pick up TX signal and cause a mess. Change the relays and you are almost there. Use SHIELDED

It looks like your potentiometer doesnt have a +5v connected. Can you confirm that the pot's center pin changes voltage smoothly between 0 to 5v as you tune it? - f

Adrien, thank you for this excellent information. I will be downloading V 1.2 or higher firmware and use your method for calibration. Should have my programming cable for the nano by end of next week.

I have a v5 ?BITX that I've been fiddling around with for a while, and it looks like just about all the stuff I'm interested in being able to do with it will be better-enabled with the CEC

Thank you for saving this old dog from barking up the wrong tree. I will down load V 1.2, Big help thanks again... I have a dummy load and a good comm receiver to check the ubitx tx with. The TX and

MadRadioModder, that would be too easy. I am not an electronics expert, only a builder and tinkerer. I will learn more from modding the V3 than I will ever learn from assembling the V5. Just my thing,

Yeah, whats a few farads or henrys between friends. We all know what I am looking for nomatter how I say it. You're also right that this fix only address harmonics, not spurs. I knew that. That's what

An easier fix is to sell the V3 and buy a V5. Boom. Done. Sent: Saturday, September 21, 2019 5:10 PM To: [email protected] Subject: Re: [BITX20] WTB 680nF Inductors #parts I think the whole smd

Sorry to nit pick, however I do not know where to get 680nF inductors, only 680nH inductors.? I assuming that you do mean the 680 nanoHenry inductors that were suggested by Raj, vu2zap in this

Were you able to test to see if they worked? Dale wrote: -- Dale Hardin 24750 State St. Unit 487 Elberta, AL 36530 251-597-9256

I think the whole smd inductor - alternate relay thing has been discussed to death. Seems there are two options, inductor-relay fix or off-board relay fix. I can do the inductor-relay fix without

Hi Dale, Not to discourage You from doing this, but my experience with replacing the toroids with the 680nF SMDs showed no change whatsoever. I have photos of the spectrum analyser screens before and

I bought these, and reasonably-shipped: https://rover.ebay.com/rover/0/0/0?mpre=https%3A%2F%2Fwww.ebay.co.uk%2Fulk%2Fitm%2F352066947527 Tedk3rta

Hello to the group. This is my first post here. I am building A BITX40 and I am having a lot of trouble with it and I am about to believe it is a bad Raduino. Regardless whether I hook it up via the

Easiest soln? is to use a two chan level converter (~50 cents). You can also make a 3.3 v device the master, with pullups to 3.3 v source.? Arduino will read 3.3 v as high.

Our group, the TSW actually had this working long before CEC used it and the only problem you might run into is the Si5351 can accept no more than a nominal 3.3V signal level on the I2C lines. If you

I have not yet done the mod, however KD8CEC at Hamskey.com has used the I2C line to link in second displays and Nano's for increased functionality.? To me that would imply that you can use the link

Hello, I have one of the 20x4 LCD displays on my uBITX, with the I2C backup to free up pins.? I removed the two pull-up resistors from the (5V) backup, so that I could use it in conjunction with the