¿ªÔÆÌåÓý

Date
Re: Gallery
Mike, this is a very interesting approach. How big is your case? I like how compact it all is. -- Karl Heinz - K5KHK
By Karl Heinz Kremer, K5KHK · #45176 ·
Re: Gallery
Hello Mike, Here are some pictures of my uBITX build. Thanks for looking. Mike N6CMY
By Mharpen@... · #45175 ·
Re: Source of small gauge shielded audio wire for a filter #ubitx
Pete I have a Hi-Per-Mite in my uBitx and it makes a huge difference. ?I'm not switching it, but I've installed the SCAF in other things such as my KX1 (I had a short article about it in QRP
By K4LXY · #45174 ·
Re: how to reset the calibration
Glad to hear Tim. I hope it will be useful later as well. I'd rather get the code fixed. I need to sit down and noodle through that to find what needs a change. Sounds like we are both ready in time
By Jacob Farnes · #45173 ·
Re: how to reset the calibration
The Factory software automatically switched LSB to USB when tuning above 10MHz and USB to LSB when tuning below 10MHz. For whatever reason my uBitx had the wrong BFO frequencies saved as it came
By Jacob Farnes · #45172 ·
Re: Making front panel labels
Looks good Vic! have a look at the method I use. You don¡¯t have to be as careful with the LCD cutting
By d p · #45171 ·
Re: Making front panel labels
-- Thanks for the tip. Didn't know you did this stuff Vic. I'm waiting for my kit. Ordered it last moth. George W3GWM
By George W3GWM <w3gwm@...> · #45170 ·
Re: Source of small gauge shielded audio wire for a filter #ubitx
Have you ever cut into an old USB printer cable? Randy
By Randy · #45169 ·
Re: Low power output on ubitx #ubitx #ubitx-help
You have figured it out. I gave up.. Farhan has his mysterious ways of being thrifty. The real reason is as I think is to save one data out control line from Raduino. As Jerry said the relays are
By Raj vu2zap · #45168 ·
kd8cec if shift
I finally loaded up the kd8cec software early this morning to give it a try. When checking into the KS WX net this morning there was another qso about 2kc below the net frequency. So I tried Ian's if
By Tim Gorman · #45167 ·
Re: Low power output on ubitx #ubitx #ubitx-help
The relays used for the output filters are put together in a clever way. They use three relays to control four different filters. When KT1, KT2 and KT3 are not energized, it selects the 21-30MHz
By Michael Maiorana · #45166 ·
Description of a built-in ATU for uBitx #ubitx
Here is a description of the automatic L-Network auto tuner I built for my uBitx (It can be made to fit other radios). ? My uBitx is targeted as PM/field portable operations so space and weight are
By John <passionfruit88@...> · #45165 ·
Re: ubitx michrophone
thanks brian regards joe g0liq
By joseph.cunningham50@... · #45164 ·
Re: Source of small gauge shielded audio wire for a filter #ubitx
I have found they are not screened chris
By chris gress <Chrisg0wfh@...> · #45163 ·
Re: How to test speaker resistance
If I recall my physics, I believe the formulas for resonance for a mechanical circuit are the same math equations as those for an electrical circuit. Because the speaker is a transducer, there is a
By Gordon Gibby <ggibby@...> · #45162 ·
Re: How to test speaker resistance
It all makes sense. But was surprised at how cleanly the mechanical resonance showed up in the electrical test, looking for all the world like an LC circuit. Not something I had thought a lot about.
By Jerry Gaffke · #45161 ·
Re: Gallery
Probably - there are 4000 of these kits now in the hands of constructors!?? I bet there are some pretty interesting builds out there! Mike ZL1AXG
By Mike Woods · #45160 ·
Re: How to test speaker resistance
Jerry, The speaker is like a LC circuit and it has a resonance. The frequency is dependant on the mass of the cone and the elasticity of the suspension (including the enclosure air). The for formula
By Raj vu2zap · #45159 ·
Re: Gallery
Very nice! May you receive many contributions.? Sent from Yahoo Mail. Get the app
By Thomas Sharka · #45158 ·
Gallery
The ubitx.net website now incorporates a build gallery.? I figure this could be very handy for new constructors to source ideas for enclosures, layout and labelling. It can be found as the last item
By Mike Woods · #45157 ·