Showing posts from September, 2016

Ham Radio Friendly Fonts

For most people being able to see the difference between the capital letter "O" and a zero is a matter of context. You simply don't see a letter in the middle of a phone number, or a number at the beginning of a word.

This isn't usually a problem on the computer either, the context will usually tell you which is intended.

In some applications the difference is important and context will not always help you out. For people that deal with data in it's raw form it can be harder to figure out which is which from the context.  This is true in ham radio as well. To combat this many people use a slash through the zero to differentiate it from the capital letter "O". It is unfortunate that most computer fonts do not provide the slash.

Paul Young G0HWC of Essex, England created a comprehensive list of fonts include a slash through the zero. Thank you to Paul!

In addition, there is a Morse Code font. No more using hyphen and p…

BrandMeister - DV4Mini

Update 2016-Sep-13 - The creator of the DV4MF2 software has decided to stop updating the software. At this time the DV4 family of products is being designed to support the DMR+ network, not BrandMeister. If you are looking at the DV4Mini for use on the BrandMeister network I would look elsewhere.Please consider the DVMega or OpenSpot/SharkRF products instead.
The DV4Mini is a USB dongle that give the operator an ability to connect into DMR, D-Star, Fusion and other networks.  For DMR both DMR+ and BrandMeister are support.

This discussion will not include setting up the dongle as getting the software to work can be a challenge.  There are a couple of URLs you will need to get started.

DV4Mini Software: DV4MF2 Software:

You will need the DV4MF2 software to use BrandMeister.  But, you must install the DV4Mini software first, then download DV4MF2 and put it into the same folder as the DV4Mini.exe file.
From there you …

Nitecore Charger Case - DVMega

As you've seen in some recent posts I recently setup a DVMega in a DHAP Mini Mega case. This case holds four 18650 batteries. It does not have the ability to charge the batteries internally however.

I looked at a number of chargers and decided I like the Nitecore D4 the best.  It monitors each battery individually.  This allows you to put batteries in at different times and they will each charge correctly.

The charger also comes with a 120v cord and a 12v cord.  I like this because I can charge from solar if I'm in the field or in the car.

Back to the case.  It is the REI Expandable Packing Cube - XS (link below).  It's just the right size for the charger and the two cords.  If you unzip the expansion zipper you could put an extra set of batteries in as well.  The material of this case is thin, I don't think it will afford a lot of protection for the charger. But, that wasn't my motivation for getting it.  I wanted something that would keep everything together. We'…

MicroSD Cards and Small

MicroSD cards are really small.  To make matters worse, I have large fingers and I keep my fingernails short.

Trying to get the MicroSD out of some devices is difficult.  Sometimes just holding onto them is a challenge.

As an example, I setup a DVMega in a DHAP case (link).  The MicroSD card is recessed into the case and I can't reach it.  I end up using a tool to pull out the card.  To deal with this I created a technique to make the card easier to handle.

Using my label maker and some 1/4" tape I made a label and attached it to the MicroSD like a flag. This flag hangs out of the case and makes it easy for me to pull the card when needed.

This has the added benefit of allowing me to label the cards.  I was experimenting with several images, I created different labels so I could remember which image was on each card.
I found this technique handy with my GoPro as well.
I hope you find this tip helpful