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Bill, seeing as the hobby encompasses such a wide range of activites and the fact that the ubitx can be built to target a specific sub set (my ubitx v4 will be built for digi mode exclusively next

Hi, Radio newbies may not know how to actually use a radio to find the desired signals. The uBitx is terribly easy to use - *IF* we know how to operate a radio on the air. That is how I see the

The JackAl board just went through testing of version 6 of the PCB and we're finally satisfied that it's "solid". We have sent the Gerber and BOM files out for quotes as we intended to sell the board

Do you mean in general or do you have a specific use case in mind? The bitx is rather simple to use as all functions such as frequency adjust, calibration and sideband change are all performed using

Hi Lee, these? /g/BITX20/message/60125 http://hamradiodesigns.com/index.php/2018/09/19/jackal-features/ Alan

I think info is here but I could not find it using search.? Sorry if this bugs somebody.?? I think there was a link to where the JackAl add-on will be sold when ready and a link to the

Just stick the plug in and check with an ohmmeter. Dan

Would adding the LPF as specified by Farhan provide approximately the same output power, something more than 10w at least on the lower bands?

Hi everyone, at the Moment i build my ?BITX. I read a lot of hints, suggestions, Firmware updates. But i can't find the most Import thing for me: where could i get a documentation how to use the

Just happened to have this little can which fits over the 45Mhz area.?? Or perhaps even more area needs to be shielded. If that actually works.

Raj, sorry, i didn't take in the detail of your previous post in this thread. I guess you tried shielding etc of the stages. glenn

Glen, That was the first thing I did was try a pad instead of filter. But that did not help. It is the sane as reducing the mic drive. The filter helps to get rid of non IF signals (Harmonics)

What is the expected level into the Tx bi-amp stage at 45MHz? I don’t have a feel for this and can’t check it as my uBITX is in pieces at present. If it's a relatively high level then the 45Mhz

Joe, ? I've been using these 10k pots with switches from Mouser.? They're out of stock right now until the end of Nov,

The BFR106 parts will work pretty well, but I’ve used the ERA/MAR/GALI series of MMIC successfully there too with just a little circuit modification. Some tend to be very low noise factor.

With better gain, you can afford more negative feedback to reduce distortion

I thought we needed better linearity here to reduce distortion, not improved response ?

allison, let me try those out. thanks for the tip. i had 2n2222s so they went in. i remember you explaining why 2n2222 was better than 2n3904. - f

On my v4 with PA bias at minimum and Raduino plugged in and 12v, almost exactly 400mA idle.

Ideally you'd use a scope. The crud is close enough in to your suppressed carrier you'd be able to hear it on a SSB receiver by zero beating the carrier that is leaking. It appears you should hear it