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All, I got the unpoulated G6LBQ pcb from another ebayer. I have assembeld this board but found out, that it does not work correctly. One big problem is the spurious oscillation of the MC1350 at full

Yeah, that’s exactly what I’m intending to do. :-) -Mark

Is there a way of using the QRPlabs filter pcb and switching bands that way. I fancy building a tri bander 80, 40 & 20mtrs and having other bands as a listen on option, or just building one up as a

And then it pops up to 225w on 6m: ?/g/BITX20/message/22597 ( /g/BITX20/message/22597 ) There are lots of things that can limit an amp from performing well as

to what do you attribute the reduction in output power? Is it gate capacitance acting like a low pass input filter to the IRF510, or is it drain capacitance, or something else? would be appreciative

The IRF 510 works up to 10 m, but from 4 watts on 40 m goes down to 1 watt on 10 m, that is the cost of a simple solution, discovered while using a Genesis G-40, a kit made out of the YU1LM's AVALA. A

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?