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Bruce, Check on the uBitx board if you get the 12V power. Start first just below the power jack P1. Sometimes these wires are crimped well and may not be making contact. It is almost impossible to see

I think my microBitx main board may be defective. When powered up (without the raduino attached), according to the wiring instructions, it only draws 60-80 micro amps, rather than 90-110 mA the

Hello Ian. Is the WSPR frequency calculator in uBITX manager working correctly. Or is the uBITX transmitting on the wrong side band ?. I would like test the update when you have done it. Philip G7JUR

Hi all When turning on the uBiTx it always defaults to 6.785 mHz irrespective of what frequency I was tuned to when turning off. ?I'm guessing this is normal and if so is there a way of keeping the

Plenty of MPSH10's on eBay. I used 0.25mm wire? on the toroids. Just what i had basically. glenn vk3pe

Dan's has MPSH10's/ 12/$US3.00. I have found he has generally good transistors, mostly old stuff. These are Fairchild pieces. I think BGMicro has some a while back...but they are no longer advertising

I think Gerald's complaint about USB sounding different than LSB winds up being due to a USB signal going through the 45mhz filter a few khz away from where an LSB signal does.? Gerald was using

Looks good. It is always a challenge to fit a rig into a small space. As Bill Schmidt says, watch out for stray RF. You may have to mount some shielding (which is true of almost any ham and any rig).

sajid, i am working on an audio amp. i am testing it live. i always personally use circuits in the air before recommending them. i hope that my tuesday i will have something you can use. in the

Nice Work, Glenn. It looks like the MPSH10 is obsolete. Doing some searching and comparing, the KSP10 is an exact replacement. It is in stock at Tayda, Mouser, and Digikey. I only checked these three

I found this data sheet while reading up on the Silicon Labs SI4721 FM Broadcast transceiver chip, I have to ask if it can be tuned outside of it's specified range into maybe the 4 Meters band or

Good idea Graham on the heat sink source, I have a few here I’ll have to check them out. Skip Davis, NC9O

ietf solved this by insisting that internet protocos SHOULD be in plain text. it makes debuggera out our eyeballs and prevents testing of friendships.

You are gonna want to keep those leads as short as possible since they carry RF (the oscillator frequencies) to the motherboard… Dr. William J. Schmidt - K9HZ J68HZ 8P6HK ZF2HZ PJ4/K9HZ VP5/K9HZ

Hello, I’m working on building my uBITX, but my cutout for my LCD in my metal case is a little rough. I know a while back someone had 3D printed a little bumper that went around it to cover up the

Did you mean USB port rather tha RJ45? You could mount this on the side of the top cover. Mike ZL1AXG

Things are getting tight in the case. Holding off on the RJ45 jack until I can make sure it's all working happily. I've removed the 16 pin connector and will be soldering leads directly to the board

Getting there slowly. I went ahead and decided to cut new end panels. The front panel still has a few additions and different knobs to find. The rear panel has a USB port missing still.

Nice looking rig! Good job on the build. Dale kg7ssb

Well. Got my uBitX built up and made a couple of contacts on 40 meter SSB. Good reports and they are looking into getting them also. I am powering the radio with a 21 volt LiOn battery pack I built.I