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Hi Raj, Funny, I have a DE-5000, LC-100A (real cheap one from eBay) and the AADE and they all agree within less than 1 percent. You might have a bad crystal oscillator on the uP in your AADE? Or maybe

Hi Jim, Just wanting to lob out an idea for consideration on your multiple uBITX board relay experiment, if it is still in progress. Mounting the Axicom relays from the back side, where they are

I agree with you Raj. Also, I believe it's because the Axicom relays were designed from the beginning to be used in RF applications where the ones originally used in the uBITX were and are not. The

Just a friendly reminder to tune in to 7.277 or 7.177 for the Sunday Bitx net. Same format as before. Hope to catch you then! Jay WS4JM

2x2 Jens, Gnd+In and Gnd+Out, add your own filter socket. You will have to disable the stock filter! Raj

Anybody knows for what is " P3 " connector on the new board ? (2 x 3 pin , female?, located beside left from the12 mHz filter-crystals) 73 , Jens / HB9JOI

Relays are sealed, cant use SWR grease. I remember reading in QST some year April about how SWR grease makes all the standing waves slip and fall off the antenna :-)) Most of my testing with harmonics

FYI, similar AXICOM relays are mounted on the RF sensed TX/RX switch (changeover) by Kanga. Attached you find the pic of one I assembled some time ago. As this provides RX protection, Kanga has

My guess is that your Panasonic are possessed by some SWR...

Hi Guys, I am awaiting delivery of my uBitX.? Now preparing the case and add-ons (like Frd/Rev power, fan controller, sound card interface, audio power amp, etc). Have been watching the spur /

Kees, My guess is that the contacts being underside are close to the ground plane of the board and that must be helping decreasing the "coupling" of both sets of contacts. Imagine a loop on one side

https://www.component-hk.com/product/TE-Connectivity-Potter%26Brumfield-Relays/V23105A5403A201.html

Info is nice always go by inductance values for tuned circuits as per sch but not mechanical turns wound. If you wind same, needed inductance has to be checked and tweaked. <ab7vf@...>

Raj, Obviously the reading could as accurate as your crystal used across AADE meter. Nice to know that you own an AADE meter. REGARDS SARMA

I don't trust my AADE meter below 1uH. I use a meter called DE 5000, it read commercial sub uH inductors very accurately. The AADE meter was way off. The DE meter can be set for 1,10,100 KHz

Joe, With 45MHz filter you may lose up to half the power. With SMD I get like 95% of stock. Raj

Hi, you are not alone, I did the same mistake. And evidently ver. 4 is more robust than ver. 3. I had to replace the audio final in ver. 3 (the good but infamous TDA).

When I replaced Q13 after blowing it I used a 2N2222A as I had several on hand. I found the stage gain was significantly less and I had to increase the drive? to get the same power with modulation as

I'm new to the ?BitX, and I'm working the bugs out of my ver. 4.3, first uBitx. By reading through the messages, I see that I'm not alone with reversed LSB/USB. I got that sorted out, so that now

Hi Justin Not sure yet... 73 Hans G0UPL http://qrp-labs.com