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https://sites.google.com/site/arvidevans/antennacurrentindicators _._

As it appears that the Nextion Display will be getting its +5V from the L7805CV regulator on the Raduino board, I started wondering if this regulator is up to the task (it is rated at 1.5 A) and if so

One correction to prior posts...the diode voltage is there to match the B-E junction offset, not to match the B-C drop. Farhan was careful to use silicon transistors and silicon diodes in order to

Depends on your definition of handheld.? There are plenty of guides available to run fldigi on a pi.? The radio, battery, pi, and ancillary cables and connections would be a handful for all but

If in doubt whether it is fine or not you might think to build a small signal generator that is able to generate just an above noise level S3 and and a good S9 signal. I made the

I don't use Domino or Thor.? I do use PSK31 on a Rpi-3B and I see no reason why it would not work with uBitx.? Hand held however is unlikely as you need a fair amount?of battery for the radio, Pi

Yes.? I did that with a nano and 2lin display to modify and test code without messing with the uBitx until I was happy.? It was an easy wireup and while its not as pretty/compact it works just fine.

Meanwhile, over on the Zed, KE0EYJ asks, "I was wondering if there is any kind of 5w HF radio (BITX?), combined with a Rasberry Pi (or something similar) running Fldigi (or similar) as one unit, that

It is just a dipole with 300ohm line. Also use a CHA 250 b.

Once I looked I noted that.? The DC quiescent point for the amp is not guaranteed due to HFE of the transistors.? All of the traditional designs use the output (junction of the emitter resistors) as

NOTE: I purposely ordered the 3.5 inch display. Tom AB7WT

I ordered a 3.5 inch enhanced display from what I think is the vendor ITEAD.? I used guidance from the ubitx.net reference.? Any confirmation on this model being correct or incorrect would be much

Circuit diagram to enable this idea?.. [email protected]> wrote:

Has anyone reported damage to their uBITX (little or no power out on TX) caused by previously keying a QRO rig nearby ?? This was a common problem with the BITX40 as high voltages present on the

Skip, Sorry, I had been in the basement most of the evening. Didn't want wifey to feel neglected, happy wife-happy life! So I headed upstairs after the qso. The band was crazy last night. tim ab0wr

Here is a nice similar design by LU1AGP for discreet AF amp. I also remember assembling few designs from Elektor as a kid in particular there was a very nice low noise one in a ZN414 based MW Rx. 73

Thats good, what is your antenna ? Raj

It is a V3 ubitx board. I'm using CEC firmware. I get about 10w on 20m and 5w on 10m.

What John and Bill said. Joel N6ALT

Another LED approach that works well is what's used in OZQRP's MDT DSB tx.? As the uBitx is higher power it may be possible to use a smaller coupling capacitor (try 5-10pF instead of 22pF - not tried