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My Mobile Ubitx use thoughts: Suggest adding a tuner-spinner lock out switch. Add a separate tuner-spinner activation push button. You may want to change the Ubitx default tuner-spinner to a

I just renewed bitxmap.com ( http://bitxmap.com ) for another year.? The map has been up for about 4-1/2 years and with its own domain name for 4.? We have 784 points mapped and close to 62k

Paulo, Just wait a week. I am almost done with the write up

Paulo, Connect Q11 collector to the junction of R45 and R48. Connect the open end of R51 to TX line. In 602 the OUT-B is pin 5 Audio is for phones only. Raj

Hi, I'm building "allanalog" with 1206 smd components on a ? cnc milled pcb ( Easyeda, Flatcam, very old? cncusb , all freeware ) All the circuit except BPF, LPF and power rf section are on a

Not to hijack this thread... Has anyone got qsstv going on the ubitx? - f [email protected]> wrote:

Evan and Jonathan, I use the 817,ft857, and also 3 others work for me in the yaseu section.Then set the thing to vox,make sure you click on what ur using on output and input of audio on settings ,so

I don't want to get too off topic Evan???but yeah the power wires that he used were the wrong color code. Ground red, Black was the +12 and yellow were the finals. Had forgotten about those arrows

Dave, Did you verify that the trace between the two power connections under the header was cut?? If not, then the higher voltage would be sent to the mainboard and that could damage multiple

Go a little bit bigger with a 20x4 LCD display.? Much easier to display all the info. The user interface can be accomplished with just three buttons:? Down, UP and MENU/SELECT.? You can use the

/g/BITX20/message/76735 -- 73 Dave ADOB ( https://www.qrz.com/db/AD0B ) Raduino bracket and Ham_Made_Keys ( http://veloliner.com/ham/k0mbtkey.pdf )

Vic, Here is an inexpensive shielded RF probe kit.? I have built and tested it, and it works well. https://www.qrpkits.com/rfprobe.html A fellow builder and I are doing a club presentation on modern

I repaired a radio with what looked like 911 and 912 bad. Both of the emitter resistors were cracked. Transistors were fine -- 73 Dave ADOB ( https://www.qrz.com/db/AD0B ) Raduino bracket and

Farmer here also Vic, I grow coffee. Monsoons have started and everything is very wet for the next few months. The probe at 911/2 is acting like an antenna and the whole circuit is oscillating. This

I have a V6 and it is touchy enough that I don’t think it would be stable on frequency from bouncing around in a car. Just my opinion as I haven’t tried it. But most mobile radios I have used are

Thanks, David. I disposed of all my ancient tube-type scopes, VTVM, and RF probe a long time ago and I don't have anything but a couple DVMs and RF wattmeters for most test work. I never had a signal

Thanks, Raj. I do get a good signal from TO3 right up to the base of Q911, but not after that transistor, which is why I am looking there, but the power indication (only about a watt) when I probe

Evan, I picked up a device at the 2019 Hamvention that looks identical to that one except for the color of the case. It has been amazingly useful with transistors, capacitors, etc.,and how I found

The TFT displays are almost unreadable in sunlight in a car, so I think that is another reason to go to a 2-line LCD option. The one on my BitX40 is easy to read in the car. You probably can do that

Moreover the joystick/directional buttons are just crazy thoughts out of my head and not a necessity . Any control system with character LCD will work for me. Ashok VU3KFK