See circuit diagram below. No schematics are known to have been published.
µbitx Vk3arh
Ubitx wiring diagram. The wiring diagram is shown below. The connections of wiring are as per ubitx schematic if you find volume control function in reverse then switch wires black and red on the 10k potentiometer. Wiring up the cw key the cw key needs a pull up resistor of 47 k from 5 volts to the key sockets tip. Main board raduino assembly. Operating cw the way that the ubitx works is a little quirky so it is useful to start by looking at how conventional hf transceivers operate in cw mode. The microphone used in the ubitx can be a dynamic one or a condenser type the default mic supplied with ubitx is condenser one.
04 feb building ubitx in nextion case 35 5 inches. Download hd pdf file. Mainboard fuse should be rated 05a not 5a as labeled on the diagram. Tx and rx wires for led soldered on ubitx txrx relay. Ubitx wiring to be done. For using a dynamic mic a 33uf tantalum.
The blue wire of the digital connector is the keyer line a6 of raduino. Design of the cw keying. The ubitx is a low power qrp high frequency hf amateur radio transceiver designed by ashar farhan. Wiring diagram ubitx v5 v20. If you do decide to wire up two jacks then you will need to buy an additional jack. Solder the digital connectors blue wire to the tip tab of the cw key socket.
For cad files see the ubitx cad files folder. Original high resolution diagram by w4rjp. All three resistors 47k pull up for straight key to 5v 22k resistor for dit and 10k resistor for dah will need to be installed. Now normally the architecture is explained going from antenna to speaker but i think it is easier to understand if we go from microphone to antenna right to left on the block diagram. Construction ubitx case no responses by suniladmin september 7 2018. So lets start with a block diagram of the ubitx.
Wiring diagram by w4rjp. Continuing on with the general receiver concept with lessons learned from the minima the ubitx was published. The green wire from the digital connector carries 5v.
Gallery of Ubitx Wiring Diagram
