dopacatch.blogg.se - Cw decoder review

#CW DECODER REVIEW HOW TO#
#CW DECODER REVIEW MANUAL#
#CW DECODER REVIEW FULL#
#CW DECODER REVIEW CODE#

Connectors: Power, 3.5mm keyer jack, 3.5mm stereo earphone jack, BNC RF output.

Configurable sidetone frequency and volume.

Frequency presets, VFO A/B Split operation, RIT, configurable CW Offset.

#CW DECODER REVIEW FULL#

Full or semi QSK operation using fast solid-state transmit/receive switching.

Simple Digital Signal Processing assisted CW decoder, displayed real-time on-screen.

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 are bolted to the PCB as a heatsink, though heat dissipation is minimal.

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.

In case of any problems, please see the QCX trouble-shooting page. Please see QCX Frequently Asked Questions page for any queries you have. There are NO surface mount components to solder (two SMD ICs are already factory pre-soldered). See below for the long list of features! This is a kit of parts that you assemble yourself. The "QCX" is a 5W, single-band, high performance CW transceiver kit with WSPR beacon, and built-in alignment/test equipment. Same circuit, same firmware, same functional operation - but physical improvements. It has rotary encoder synthesised tuning, VFO A/B/Split, Iambic keyer, CW decoder, and more.ġ: The QCX kit has been replaced by the new QCX+ kit.

#CW DECODER REVIEW HOW TO#

Please see the help file on the HotPaw website for hints as to how to solve decoding issues.QCX: a feature-packed, high performance, single-band 5W CW transceiver kit, with WSPR beacon and built-in alignment/test equipment. Decoding will not work if the audio filter or WPM are set incorrectly, or there is a lot of background noise or room echoes above the threshold setting. or background noise threshold level properly.

#CW DECODER REVIEW MANUAL#

Please use the manual settings if automatic decoding does not adjust to the frequency, WPM. You can see if sound is getting to the iPhone by seeing a peak in the spectrum display.

#CW DECODER REVIEW CODE#

Please aim your iPhone microphone at the Morse Code sound source so that the iPhone's noise cancelling microphone doesn't cancel it out. A QRQ High Speed WPM mode setting allows decoding much higher WPM speeds in the range of 30 to 80 WPM. You can also manually set the WPM code speed if the automatic speed detection guesses incorrectly. The Morse code WPM (words per minute) detection speed is automatically adaptive from about 8 to 40 WPM, and can be locked to the current estimated WPM dot speed. Please do not try to decode tones outside this range. The audio filter works for tone frequencies from 300 to 2400 Hz. Use the optional narrow-band DSP audio filter to help filter out background noise. The Morse Code Decoder includes a built-in spectrogram to help determine the audio frequency of the Morse Code tones. Manually adjustable parameters include the frequency of the audio filter, the WPM dot/dash speed used for detecting characters, the threshold level of background noise, and whether Farnsworth timing is to be used for detecting spaces between individual characters. The Morse Code Decoder includes both an automatic decoding mode, plus manual controls to allow the decoding of weaker signals in noise and QRM. Just use the microphone or headset input on your iPhone or iPad for the audio signal input, and watch decoded text appear. The HotPaw Morse Code Decoder translates Morse Code sound into text.