Yeah nothing heard I did call cq bitx quite a bit. Did have 4 qsos with the bitx curious. Talked to one guy in Baltimore who gave me a solid 59 and couldn't believe that I was running a qrp power level. Last week talked to a ham in Green Bay, he asks, "you running power or just a 100 watts?" .... ah 10 watts. He didn't believe me. I hear stuff like that a lot.

My good antenna has been on the ground for a week now from ice.

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Hi All.
How about doing a Pacific Region QSO on 7.177?
Time of say?8:00 PM ( 20:00 )?Australian Eastern Time? = ?10:00 AM (10:00)?UTC SUNDAYS?

7.177
--
David

?N8DAH

Called a few times nothing heard, will hang for a bit see what I can hear.
--
David

?N8DAH

The TSW (www.w0eb.com/Page2.html) group has confirmed that both our "Raduino Clone" board and the BITeensio board kits will work fine with the new uBITX Version 5 rigs.

The Factory V5.1 Raduino firmware from GitHub works in the NANO on our "Clone" board installed in a V5 uBITX just like it does in a factory supplied Raduino and we are very close to releasing firmware for the BITeensio that will run on both the legacy (V3/V4) uBITX and the new V5 uBITX boards as well simply by selecting VL (legacy) or V5 in the calibration menu. The default will be V5 but to use it in one of the "Legacy" rigs, select VL and calibrate it. The VL calibration info is saved separately from the V5 info and once you have the BITeensio calibrated for both versions you can swap it between the two uBITX types simply by selecting VL or V5 in the Calibration menu.

(If you install the BITeensio in a different V5 or VL uBITX than it was originally calibrated in, you may have to touch up the calibration.)

Beta source code usable with both the 2.8" and 3.2" color displays will be posted in the TSW website's file directories sometime in the next several days as soon as the operating instruction manuals are revised. The same version will work for both displays with the addition of one wire on the 2.8" display only. On the 2.8' the T_IRQ pin needs to connect to D17 on the Teensy 3.6.

Jim, W0EB

Am on 7177 as 7277 has a qso going on 7275 on it.
73
dave
k0mbt

Thank-you Jerry.? The link explains it very well.

73,
Evan
AC9TU

Here's an old thread about protecting the receive front end of a uBitx:??/g/BITX20/topic/7715656

Vic,

I understand that the specifics are for the Bitx40, however some of the comments were that it was used on commercial rigs to protect receiver front ends.? Would be interested in the reason it would not apply to other rigs inputs, as long as it was only in the receiver path from the antenna to the first mixer.? There is Q90 in the uBitx that is possibly vulnerable to the overload problem as in the? Bitx40 Q13(?).

Thank-you for the response

73
Evan
AC9TU

Is there anyone in Maine, USA that would be interested in a couple unassembled BITX40s? I have two kits. I was about to assemble but have decided not to. I'll make a local person a really good deal.

David Goodrow
solarsunflower@...

No, this only applies to the BitX40

=Vic=

unfortunately only a frequency meter

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Another 'gotcha' on the Bitx40 is the LM386 - it really doesn't like pin 3 direct to earth (Volume pot wiper)! The track to the socket runs alongside the IC, so it's not a huge task to cut a break, scrape and tin the ends, and fit a resistor (anything from 1k to 10k does the trick, and as small as you can find, even perhaps an SMD!). Farhan, a reminder? If you're going to use an LM386 for uBitx V5, please fit that resistor!

73 de ZL2DEX

Oh Lordy! Why the -12V??? Make that line 0V (GND)!

The regulator on the Raduino is 5V out, and needs a minimum of 1.5V extra input. At its max current, that means 1.5Watts or so to dissipate, which likely would need heatsinking. At typical Raduino drain 300mA hat's abot .5W, so heatsink not essential. at 300mA, that 12r will drop 4V, so that 12r resistor should give Vc = 7 or 8V and would be dissipating that other 1W so will need to be a bit beefier - say 2 or 3W.

And reverse that circuit's In and Out (To Raduino)! NOW you've got an RC filter for the power line! As is, those C's are just extra reservoir on the MAIN power supply - which *might* reduce those annoying 'tuning clicks' but likely not eliminate them.
Mine worked fine with 5.1r 2W and 220uF.

73 de ZL2DEX

Got a few cases ready.

https://shop.kit-projects.com/index.php?route=product/category&path=59
--
David

?N8DAH