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?A? ldrich ?I would use 41 turns to start with. That way you can easily remove one turn if 41 turns is too much. Arv K7HKL _._ ? aldrich.sarmiento@...> wrote:

Ron W7HD As has been said before, the 2N3904 devices in a BITX are not going to get you on 2M with any usable power. Several have suggested using a transverter driven by a BITX. It might be

Mike KC2WBV, and others... The rotary encoder apparently is a bit fragile. All outputs (phase-A, phase-B, and the push-button switch can easily be damaged if 5 or 12 volts at any substantial

Greetings, I'm about to start building a BITX40 with the dead bug style and I've noticed that the filter passes band indicates 6uH however 40 laps on a toroid T30-6 is 5.76uH, not 6 ... I mention this

Kalid Several persons have provided ways to increase power output at higher frequencies. Allison is presently working on additional ways to provide the same power output on all bands. If you go to

Ok, gotcha! ?Hopefully I’ll have some time in the next few days to get it together.

Had similar issue. New encoder from Digi Key fixed the issue.

I had a similar issue and thought the Raduino might be an issue but a new encoder from Digi Key fixed the issue.

New encoder arrived today. Replaced the old with the new and wala the UBitX works perfectly now. wrote:

Put me down for interest in 2M SSB! -- Ron W7HD - NAQCC#7587 OMISS#9898 KX3#6966 LinuxUser#415320 Editor OVARC newsletter

I had assembled both the UBitx and BitX40 last weekend. The 40 meter radio worked perfectly. The uBitX would not tune nor would it properly allow entering into the menu. I knew from testing the

All: We have finished the new set of Gerber files and will be sending those off today. Those new boards will be sent to our Beta testers for evaluation. We also know that there will be 13 pins

Farhan, The 45MHz filter slopes are much gentle than that at around 1dB, similar to Jerry's number.? Here is the.plot of the response: /g/BITX20/message/45675 73, John

Hello everyone i faced problem with power when I measure the power with swr meter i get less than 10 watt in low side band in ultra side band i get 6 watt on 20 meter but 10 meter i get 0.6 watt so

Gees! I just looked at the price!! That's almost twice the entire JackAl system! Jack, W8TEE

I doubt it, or it would at least require some major work as our screens are 800x480 and use the RA8875 graphics controller. I slightly modified the Sumatoy touch screen library, so it you have one

small increase adjust RV1.? That increases all so go for about 10-11W on 80m and see what you get on 10M.? It should improve but 4-5W is maximum. Allison

the spectral purity issue is a red herring as you will need band pas filters anyway. The real issue the entire transmit chain is unsuitable for 2M. Most of the parts are marginal at 30mhz.? Also you

How did this conversation end up here when there is another that is on topic for attenuation via filter? My self I'd not do it.? A DBM makes a fine attenuator just very the injection current. Also

There are other 45mhz filters out there that might be more suitable for this 45mhz attenuation trick. This post suggests we are primarily concerned with the stopband 2mhz out: ?