I built the ZZRX-40, designed by AAØZZ and kitted by The Four State QRP Group. It’s a small “starter” kit for a 40-meter CW direct conversion receiver. Fun! You can get the kit at https://goo.gl/h7VDDN. To see the K7AGE tutorial video, see https://youtu.be/lheknDnPKbM.
I’ve often asserted that the human ear is a frequency sensor, and phase changes or phase distortion don’t affect hearing. It’s high time for a demonstration!
When Single Sideband (SSB) is implemented using the filtering method, the phase gets rather distorted. However, with the phasing method, phase information can be preserved. Some say that means better quality audio. This video demonstrates changing the phase between a fundamental frequency (256 Hz, about Middle C) and the 2nd harmonic (512 Hz, about High C). See if you can tell the difference. It’s obvious on the oscilloscope, but no matter the phase difference, it all sounds the same to me!
The Baofeng GT-5TP is a new offering in the competitive dual-band ham radio handheld market. This Chinese-made radio has lots to offer for a very low price. To order this radio, if you order from this link, a little of your purchase price helps support my videos. Thanks!
Caveat: Radioddity gave me this radio in exchange for a review. In spite of the free radio (about a $50 value), I think I gave it a fair review. Tell me if you agree!
Click on the following to order the radio from Radioddity, and at the same time support this website, “Ham Radio Answers.”
I'm a member of the Church of Jesus Christ of Latter-day Saints, or more commonly known as the Mormon Church. There's lots of misinformation out there about the Church. Why read erroneous material when you can easily see what we really believe? Check out mormon.org for an introduction to the doctrines and a chance to see member profiles, or if you want in-depth information, including the various books of scripture, lesson manuals, and policy manuals, go to lds.org. To see my personal profile on mormon.org, click here.