Ubitx.net provides help for constructors: Preventing catastrophes and providing guides, fixes and modifications for your µBITx. We are an information site only and not associated with HF Signals.
WARNING: As shipped, your µBITx probably will not be compliant with emission requirements. It has been found to generate spurs and harmonics. There are now simple fixes available to address these issues. Make sure you apply them prior to operating the transceiver on an antenna.
CAUTION : If you power up the µBITX without the pull-up resistor the µBITX is likely to go into CW transmit. Make sure you install the 4.7k pull up resistor on the CW key pin!
v4 Board? – If your audio is distorted see this article. Note that audio output is reduced over the v3 board. If you use a low impedance speaker you may need an additional amplifier module (LM386, TDA2822, etc.) to get adequate volume. The audio pop mod is not required on v4 boards.
SHIPPING: µBitx orders have been shipping within one or two working days of being ordered. You should receive a shipping notification through PayPal once your product has been shipped. Estimated delivery times to different countries:
EU: IndiaPost: 2-5 days DHL: 2-5 days
US: IndiaPost: 10 days DHL: 2-5 days
Asia: IndiaPost: 2-4 days DHL: 2-4 days
AU/NZ: IndiaPost:10 days DHL: 5-7 days
BITX QSO DAY: Every Sunday – 3PM & 7PM Local Time – 7277 kHz in North America, 7177 kHz elsewhere.