![]() ![]() ![]() Iambic keyer or straight key option included in the firmware.Si5351A Synthesized VFO with rotary encoder tuning.High performance receiver with at least 50dB of unwanted sideband cancellation.CW envelope shaping to remove key clicks.7-element Low Pass Filter ensures regulatory compliance.Class E power amplifier, transistors run cool… even with no heatsinks.Approximately 3-5W CW output (depending on supply voltage).Professional quality double-sided, through-hole plated, silk-screen printed PCB.Easy to build, single-board design, 10 x 8cm, all controls are board-mounted.The kit includes heatsinks and connectors as well as the PCB and all components. The 50W PA kit includes solid state Tx/Rx switching for full break-in (QSK) operation. This 50W PA kit will give your QCX an extra boost for those occasions when you need a bit more power - to work a particular station for a regular sked when conditions are bad to deal with our bad band conditions these days to work a particular DX staiton, etc etc. It is also useful for calibrating the transceiver kit, to get the synthesiser reference oscillator precisely calibrated (resulting in accurate transmit/receive frequency).Īn optional 50W PA kit is available, which also has an optional enclosure. Note: the optional GPS receiver module kit is very useful if you wish to operate this kit as a WSPR beacon (it disciplines frequency, time, and Maidenhead Locator grid square). Note: The QCX transceiver is always shipped with the latest firmware version available at the date of shipment. You need to download the assembly and operating instructions manual from ![]() Hard-copy assembly instructions are not included in the kit. The "QCX" (QRP Labs Xcvr): a feature-packed, high performance, single band 5W CW transceiver kit with WSPR beacon and built-in alignment and test equipment. As of 1, the QCX transceiver kit has been replaced by the new QCX+ kit ![]()
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