Building the ZZRX-40 Kit: a KEØOG Kwikie

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.

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

Posted in Ham Radio blog entries, Video | Leave a comment

Kit Building for the Radio Amateur–AD#39

What kits are all about and how to decide if one is for you.

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

Posted in Ask Dave, Ham Radio blog entries, Video | Tagged | Leave a comment

Using CHIRP to Program your Handheld Ham Radios, AD#38

Use your programming cable with CHIRP software from http://chirp.danplanet.com. I show how to download memories, change them, and upload. Also how to transfer from one radio to another.

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

Posted in Ask Dave, Ham Radio blog entries, Video | Tagged | Leave a comment

Baofeng, TYT, Wouxun Programming Cable that Works

Frustrated trying to get the programming cable to work with your Baofeng, TYT, or Wouxun handheld radio? Watch this for an approach that works, using the Powerwerx cable.

You can see a list of Ask Dave videos by clicking here. You can ask a question by clicking here. You can go to my YouTube channel by clicking here. And the tip jar is available by clicking here.

Posted in Ask Dave, Ham Radio blog entries, Video | Tagged , , | Leave a comment

Human Hearing vs Phase Changes: Demonstration

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!

Posted in Ham Radio blog entries, Video | Tagged | 3 Comments

Review of Baofeng GT-5TP 2m/70cm Handheld

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.”

Posted in Ham Radio blog entries, Product Reviews, Video | Tagged , | 2 Comments

How Does a J-pole Antenna Work? AD#36

After quite a hiatus to update the Amateur Extra Class videos, I’m back to the Ask Dave series. Here’s Episode 26, which answers the question, “how does a J-pole work?”

Posted in Ask Dave, Ham Radio blog entries, Video | 3 Comments

FTDX-3000 Menu Settings

Yaesu FTdx3000 front panel. See text for description. My MFJ-993 sits atop the '3000.

Yaesu FTdx3000 front panel.

I’ve been asked what I use for the digital settings for my Yaesu FTDX-3000. It’s a great rig and I’ve enjoyed it. It has the best receiver I’ve ever had in 40 years of hamming!

The only interface between the radio and my laptop is a single USB cable. This allows for full control of the radio and takes advantage of the sound card built into the radio.

For what they’re worth, here are my menu settings where they are different from the default:
Menu 038, CAT rate: 38400 (must match how the COM port is set)
Menu 065, PC Keying: RTS (again, must match the digital mode software on the computer)
Menu 067, Data Mode: Others (means it doesn’t force PSK-31 mode, and allows any soundcard mode)
Menu 069, Other Disp (SSB): 1000 (allows the receiver to display data mode frequencies correctly)
Menu 075, Data In Select: USB (this means using the USB cable instead of RS-232)
Menu 076, Data Mic Gain: 25 (though I use 15 for fldigi – depends on the software)
Menu 077, Data Out Level: 10 (again, dependent on software)
Menu 116, HF PSK Shape: Soft
Menu 117, HF PSK Slope: Gentle
All other digital mode settings are at their default setting.

I welcome any suggestions!

Posted in Ham Radio blog entries | Tagged | Leave a comment

Amateur Extra Lesson 11.3, Grounding and Bonding, 11th Edition

Here’s your video introduction to Section 11.3, “Grounding and Bonding,” in the 11th Edition of the ARRL Extra Class License Manual for Ham Radio.

You can find a complete list of the Amateur Extra videos by clicking here, or click here to go to the YouTube Amateur Extra playlist. Please post your questions either below or on the YouTube page for this video. Good luck in your studies!

This is the last video in the Amateur Extra License series. Good luck with your exam! I hope to see you on the air.


Posted in Amateur Extra Class License Training, Ham Radio blog entries, Video | Tagged | Leave a comment

Amateur Extra Class Lesson 11.2, RF Exposure, 11th Edition

Here’s your video introduction to Section 11.2, “RF Exposure,” in the 11th Edition of the ARRL Extra Class License Manual for Ham Radio.

You can find a complete list of the Amateur Extra videos by clicking here, or click here to go to the YouTube Amateur Extra playlist. Please post your questions either below or on the YouTube page for this video. Good luck in your studies!

Posted in Amateur Extra Class License Training, Ham Radio blog entries, Video | Tagged , | Leave a comment