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If you had ordered from Giga Parts in the US for the same price you could have had it tomorrow :=P John

Jerry, Name here is Jerry, KE7ER. A ham since the early 1970's. Mostly interested in the technical puzzles, typical SSB contacts are not very motivating for me. Not sure what current shipping times

Hello all! QRZ, is the frequency in use? Last night, on a whim, I ordered a uBITX v6 from India. Anybody know how fast they ship? Kicking myself this morning because it's also carried by gigaparts,

Correction to earlier post. It does appear that on the uBITX schematics, some leads are marked with an "x", but as Raj has said, they are not connected to anything else. Arv _._ [email protected]>

In this case, an "x" means no connection. In the uBitx schematics, the remote connections that Arv describes are drawn as text inside a box with a pointy end. An example of this is "CLK2" in the upper

In conventional schematics it is sometimes necessary to show connections as an "x" or something similar. This is because showing the connection between two points might excessively complicate the

I like building and have built a BITX 40, uBITX, QCX, QCX mini and a Barb WB2CBA v1.02 uSDX. The first thing to know is that unlike the uBITX or QCX, there are several hardware variants with different

Pierre, It means that those windings are not connected. HFSignals winds all transformers identically. In places where a bifilar (2 windings) is required they leave the 3rd winding disconnected. It

Could a member explain these odd things I find on the schematics wiring of four transformers : - T5 : wires 1 and 6 end in a x ; - T6 : the same ; - T8 : the same ; - T11: the same with wires 3 and 4.

uSDX enclosure : uSDX - Ham Radio Hobby Kits (amateurradiokits.in) ( https://amateurradiokits.in/store/usdx/ ) 73 - Pierre - FK8IH

Robert - That's about what I was figuring, definitely no more than that and maybe less.? I already have a few Nanos since I couldn't use them on the Raduino with the header soldered on opposite and

My PICKit 3 programmer should be here Saturday so I'll let you know how it goes, if I don't brick it!

The phases I gave in the post included below for the various impedances when doing an AC Analysis in LTSpice of the Q90 uBitx stage are incorrect. When LTSpice measures current through a device, it

Hi Justin, That article looks interesting. I wouldn’t mind buying one of the PCB’s off of you. How does $5.00 sound, is that fair? I usually look at this group each day so let me know what you

Jerry, I agree with your assessment.? I really need to do the IMD and power tests for SSB. Doing some more simulation, I do believe that increasing R83 to allow for a better filter impedance match is

Actually 80,40,20 are all fairly even. So adjust RV1 or R83 as appropriate for SSB use.

Evan, I have no idea if you will have trouble with IMD on 80m. Increasing R83 would cure IMD and also further improves the impedance seen by the filter, but reduces power on all bands. Could just

Jerry, I did not think of the LPF causing the dip on 30meters.? That makes sense. I will check the SSB signal on 80meters with my RSP1A and the SA software.? The choice would then be to change R83

Evan, The dip on 30m is because it is using the 40m LPF, which must attenuate a 20m second harmonic. But hey, it's primarily an SSB rig. My only concern would be that the big C81 causes too much power

If it's at least a 16 bit machine and either has lots of registers or an easy way to access words in RAM as an offset from the stack pointer,?C is the way to go. This applies to pretty much all