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ITs been said but I will repeat. Build it first and test.? Insure you have the 4.7K in place on the key jack.? Double check wiring. If you are bench testing before boxing it.? Use care to avoid

Warren, During my sessions testing the amp it was noticed but the 20Mhz and up spur was higher? on the priority list. Another thing I ran into with a friend was defective low pass filters.? The

That's an interesting finding, and seems quite likely correct. Thanks for looking into that. One possible solution would be to unbalance either the modulator (as done on the Bitx40 by Allard's mods)?

I am noting a significant difference in the harmonic suppression in SSB mode versus CW mode.? The two signals are generated in a very different way. SSB is generated at 45 MHz and mixed down to the

Hi -- I have had my v3 ubitx working fine, and thought I would install the T/R click fix version 2 from http://www.nd6t.com/uBITX/TR%20Click%20Fix.htm. I'm fairly confident in the circuit I assembled,

Printed Wiring Board,? a.k.a. circuit board.

Looks very nice Nick, good luck with it. You might also label the "+" via on the 5V input since we had some confusion there, and the other grounds (audio, etc). 73 Kees K5BCQ

Use the Groups wiki site...?/g/BITX20/wiki/home??( /g/BITX20/wiki/home ) and make corrections and additions if you feel its needed.? And what they said, build it

Mike : It certainly sounds like RF getting into where it doesn't belong. ?End-fed wires are notorious for bringing RF into the shack. I would suggest trying to put a ferrite choke on the power leads

Eddie, ? ? ? ? ? ? Check this out(from Google) How to Open and Extract RAR Files on macOS or Mac OSX ... ( https://appletoolbox.com/2015/10/how-to-extract-rar-files-on-mac-osx/ )

FET 2N4091 metal case JFET or equivalent. Must be metal case for freq stab.? Bipolars : MPSH 10 or better use? the? BSX-20 which has a FT of 500 Mhz and very low input capacitance c/w 2n2222.? and

My QTH is the east coast of Ireland, so will be very lucky to receive the 5, 10Mhz WWV?transmissions, for Zero Beat calibration, given the propagation conditions lately. I'll have to tune to a local

I am not interested in purchase but if you do sell and want to stay in the hobby , without much more money you could buy a CS? SSB transceiver from?http://crkits.com/ He has an agent in Nth

Don't do the Tune Up Calibration unless you absolutely have to.

BITX QSO Afternoon/Evening, Sunday, August 5, 3PM & 7PM Local Time, 7277 kHz in North America, 7177 kHz elsewhere. Join us as we make contacts with our BitX-40s or uBitXs or anything else on 7.277 MHz

If you whois gapantenna.com you'll find they have 3 nameservers set up Name Server: NS1.VEROSOFT.COM Name Server: NS1.KEYMANAGED.COM Name Server: NS2.VEROSOFT.COM DNSSEC: unsigned ns1.verosoft.com.

There are reports from 3 different EU countries that the site doesn't resolve there. Using a VPN to provide a point of presence within the US does..... This would indicate it's the source site not the

Go for it, Nick! It seems that there are quite a few looking for some through-hole kits. Don't forget, this circuit also works the same on BITX40s as well. GL, - Don

One thing you can try is to change your DNS server configuration. You are very likely using your orovider’s DNS servers. You can change that to e.g. OpenDNS or Google: http://opendns.com

hi do i need to hack the receiver input filter terry