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Group, I have my BitX-40 working on 160 ,80 ,40 ,20 with the. QRP LABS filters and relay board. I use a multi rotary switch to manually switch the bands. I do have a little weird problem on 160 and 20

Jack, what would be overall price for parcel to reach Hyderabad, India ! regards ?sarma ?vu3zmv

Smitty: Yes; it can be done. Check each and every band for birdies. Check out the HRI DDS v.4 for a dual mcu DDS that uses the second mcu to control bandswitching. You will have to modify that for the

This is the bitx20 group for a reason, the original bitx was for 20m. ??http://www.phonestack.com/farhan/bitx.html ( http://www.phonestack.com/farhan/bitx.html ) Note the date at the bottom of that

What is it about the G6LBQ that makes it inherently more “multiband” than the BitX-40 v3? Architecturally, it looks very similar, and has an opaque “multi-band band pass filter” block on the

The original files for the G6LBQ rig are in our files section. Note that the original VFO used a Si570 chip, not a Si5351A. john AD5YE

There is also a groups.io group on the G6LBQ, although it's not very active. Vince.

One thing that the $59 bitx40 can do is give you a reason to tinker and learn if so inclined. Most of us would not consider popping the lid off an Icom IC-7851, let alone go at it with a soldering

and another link to a more original circuit: http://www.qsl.net/va3iul/Homebrew_RF_Circuit_Design_Ideas/Multiband_BITX_TRX_G6LBQ.gif Regards, Pierre VK1XP

Yes there are no boards available. Occasionally boards are mafe available if there a demand. Last I heard, Andy was designing a new version. 73 Ken VA3ABN

Hi, Re: the G6LBQ Bitx design. If you haven't found it (a link) already have a look here: http://1.bp.blogspot.com/-pb5yUw8THo0/TvWvcBKNV-I/AAAAAAAAAI0/LLseNdymVm4/s1600/BITX%2BBaru.gif and here:

Look here: http://barrie-wax-group.blogspot.ca/2017/04/minimum-bitx40v3-hacks.html THESE ARE A MUST!!!!! -- Paul Mateer, AA9GG Elan Engineering Corp. www.elanengr.com NAQCC 3123, SKCC 4628

Yeah, I kinda operate under "What will this spend allow me to do that I can't do before?" I've got the Bitx on 40M.? So far I've picked up a guy 60 mi west of me around Champaign IL.? I really would

Link?

Nothing wrong with separate Rx and Tx, my secret passion and love for awhile. If you aim for CW you can even build a separate electronic TR switch like the "Magic Box" (kit discontinued) or the

I'd certainly recommend adding the cap to suppress ?the 2'd harmonic, especially if going QRO somehow. ?A 100pf cap is a very cheap and easy fix. Though as Don Cantrell notes, the stock bitx40v3 is

What about the G6LBQ multiband bitx? That design looks pretty cool. The bandchanging looks really efficient. 73 de Chas ai4ot Sent from my iPhone

From your link, it appears that there's a plan to include the 2nd harmonic fix in the build from hfsigs. Any idea if or when that will happen? Apologies if I missed something.

Found it, it was Raj VU2ZAP who recommended this: /g/BITX20/message/32154 ( /g/BITX20/message/32154 ) 73 Allard PE1NWL

What about using something like SDRPlay's RSP1 as RX for anything you'd like to listen to, then build or modify BitXs to TX on whatever bands and modes you'd like? Kinda old school to consider