Category Archives: Ask Dave

IC-7300 Firmware Update Charts

Posted on February 28, 2021 by dcasler

Here are the charts from Ask Dave 378 about updating the firmware on the Icom IC-7300. The charts can be found (PDF) by clicking here. Here’s the video:

Posted in Ask Dave | 2 Comments

Derivation of the 468 over f formula for the length of a dipole

Posted on January 30, 2021 by dcasler

Per request from KEØKRO, here is the chart showing the derivation of the formula that the length in feet of a dipole is 468 divided by the frequency in Megahertz. Also, you can go here for a higher resolution PDF … Continue reading →

Posted in Ask Dave | Tagged , , | 3 Comments

Website for info about DSTAR

Posted on July 12, 2020 by dcasler

Brad Rich provides this link for those wishing to learn more about DSTAR. Note it not only has lots of good info, but lists other links as well. Here is the link; you can just click on it to go … Continue reading →

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MFJ-17754 Instruction Addendum from Ask Dave 265 and 266

Posted on April 17, 2020 by dcasler

In Ask Dave 265 and Ask Dave 266, I mentioned an Addendum to the MFJ instructions. This addendum describes that the antenna comes pretuned too long and will need to be shortened, and gives instructions for doing so. See the … Continue reading →

Posted in Ask Dave | 1 Comment

Reference Station Page Now Active

Posted on April 6, 2020 by dcasler

I’ve put up a page that takes you to the Reference Station list of equipment. It’s at www.dcasler.com/reference. Check it out. Comments should go to the video that introduces the reference station component.

Posted in Ask Dave | 7 Comments

Ideal Stripmaster Wire Stripping Tool

Posted on March 28, 2020 by dcasler

In today’s livestream, I promised to put up a link to my wire stripper. They’re a bit expensive, but I don’t know how I ever lived without it! Note: if you purchase through this link, you’re helping to support my … Continue reading →

Posted in Ask Dave, Ham Radio blog entries | 5 Comments

Samlex SEC-1235 Power Supply Manufacturer’s Markings and Certifications

Posted on February 20, 2020 by dcasler

A YouTube viewer asked what the manufacturer’s assertions are regarding certifications. Here’s a photo of the label on the bottom of my unit.

Posted in Ask Dave, Ham Radio blog entries | 1 Comment

How to get the latest Brandmeister DMR database for your Anytone D878UV

Posted on November 23, 2019 by dcasler

Oggie Roger Shults, KE4BFG, provides two helpful links. The first is a tool to download the latest DMR database from Brandmeister, and the second is a video that describes how to use it. If you use this tool frequently, you’ll … Continue reading →

Posted in Ask Dave, Ham Radio blog entries | Tagged | 1 Comment

AD 195 Charts—APRS with the Anytone D878UV

Posted on October 7, 2019 by dcasler

Per request, I’m uploading a PDF version of the charts I created for the video. Click here. Here’s the video for handy reference:

Posted in Ask Dave, Ham Radio blog entries, Product Reviews | 4 Comments

Hex Beam Model for EZNEC from Ask Dave 159

Posted on July 27, 2019 by dcasler

In Ask Dave 159, I used a hex beam model for EZNEC that was put together by the antenna’s designer, G3TXQ. The following link takes you to G3TXQ’s page where he describes the modeling. G3TXQ web page describing modeling method. … Continue reading →

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