Software Defined Radio (SDR)

If you don’t have one of the latest and greatest expensive scanners, you will struggle to listen to a lot of transmissions. While there is still a lot of Analogue transmissions today, even a lot still on AM especially when it comes to Aviation, however most have gone to digital.

There are several reasons for this, but put simply, digital seems to have a longer range, is clearer and you can do a lot more using just the one frequency.

For the hobbyist, to make matters hard, there are many digital modes.  P25, DMR, NXDM are just a few.  Some of these are popular, and some are not.  Then within these digital modes are different ways of using them.  For example, DMR can have T1, T2 or higher, where T stands for Tier.  What this is the radio will do one micro second for T1, then switch to T2 for the next micro second.  Effectively you can have two different conversations on the same frequency, and although every second micro second is lost, to the user you wouldn’t know. This is just one example of DMR.  You can also transmit text messages, your location and so on, all behind the user that is talking and on the one frequency.  So instead of needing to pay for 2 frequencies for two channels, you can have two talk groups on the one frequency.

And this is just the start.  It is clear my old scanner won’t cope with this at all.

However, you can do it all at minimal cost on your PC.  While your PC isn’t as portable as your scanner, it is a lot cheaper alternative and give you an idea on what you can here.

It is a bit fiddly though, and can take a while to setup.  One tick box wrong can silence everything.

Here is what I did, however there are many options, longer than your arm, so do what you think is best for your situation.

When Digital TV came in, a lot of people had trouble receiving it, and additional repeater stations had to be installed along with a lot of home TV antenna’s being upgraded.  So, whatever you do, make sure your antenna isn’t letting you down.  You can try what you have first if you want, but if it doesn’t work, have a think if you need to upgrade your antenna.

I downloaded AirSpy, a program where you can tune in the frequency and add a lot of plugins if you want to.  While this program is rather technical and can be hard for the first-time user, after using it a little while I think it is very well set out.  You can see this program in the picture below where I have the number 1 in red on it. I recommend you download the Community Package with Plugins. If you want some tips on how to get going, I recommend going to this page that has an easy step by step setup guide. Remember, there are so many options regarding this software so try not to get overwhelmed. Just look at what you need to, for example, don’t worry at this stage about tracking aircrafts – a good project for tomorrow!

The next step is to buy a SDR.  This can cost almost as much or as little as you want.  An entry one can cost somewhere between $30 and $50 Australian dollars.  However, I recommend you buy it via the AirSpy store, as there have been some imitations out there.  This is where I got mine from if that helps you. However there are heaps of other options available on this page also. Before it arrives however, you can use the AirSpy software to tap into other shared SDR users that share their devices over the internet.  There may be one close to you.  This post isn’t about this though or the detail of setting all this up, as it will go on for to long.  It is more about what you can do fairly easily.

An example of my interface. 1 = Airspy screen, 2 = wave, 3 = Dos screen, 4 = Decode box, 5 = Talk Groups

Once you get your dongle, plug in your dongle. Do not install any of the software that it came with (if any), and ensure that you wait a few seconds for plug and play to finish attempting to install the dongle (it will either fail or install Windows DVB-T TV drivers). If you’ve already installed the DVB-T drivers that came on the CD bundled with some dongles, uninstall them first. If you got the same dongle as I did, this is what I did to get it going:

In the folder where you extracted the sdrsharp files find the file called zadig.exe. Right click this file and select “Run as administrator”.

In Zadig, go to “Options->List All Devices” and make sure this option is checked. If you are using Windows 10, in some cases you may need to also uncheck “Ignore Hubs or Composite Parents”.

Once running Zidgig, select “Bulk-In, Interface (Interface 0)” from the drop down list. Note on some PCs you may see something like RTL2832UHIDIR or RTL2832U instead of the bulk in interface. This is also a valid selection. Do not select “USB Receiver (Interface 0) or Interface 1” or anything else or you will overwrite that driver! Double check that USB ID shows “0BDA 2838 00” as this indicates that the dongle is selected.

We need to install the WinUSB driver, so also ensure that WinUSB is selected in the box after the arrow next to where it says Driver (this is the default selection). – Note that there has been some confusion for a few people over this step. The goal is to install the WinUSB driver. So to be clear, the box to the left of the arrow shows the currently installed driver, whereas the box to the right of the arrow shows the driver that will be installed in the next step. The first time you open zadig the box on the left will show either ‘None’, or the default DVB-T drivers installed by Windows (RTL2832UUSB), depending on your Windows configuration and version.

Click Replace Driver. On some PC’s you might get a warning that the publisher cannot be verified, but just accept it by clicking on “Install this driver software anyway”. This will install the drivers necessary to run the dongle as a software defined radio. Note that you may need to run zadig.exe again if you move the dongle to another USB port, or want to use two or more dongles together.

Open SDRSharp.exe and set the “Source” drop down box to ‘RTL-SDR (USB)’. This “Source” tab is on the top left. (Note that the first time you do this you may get a smart screen message indicating that Windows has protected your PC, this is a false alarm. Simply click on “more info” and then “run anyway”).

Press the Play button (the right facing triangle). Your RTL-SDR software radio should now be set up and ready to use! If everything has worked you should be able to start tuning to frequencies.

Important! Don’t forget to also adjust the RF gain settings by pressing the Configure button (looks like a cog) up the top next to the Play button. By default the RF gain is set at zero. A gain of zero will probably receive nothing but very strong broadcast FM – increase the gain until you start seeing other signals.

Decode Digital Signals using DSD Plus

So now your on the air, you can take it to the next level now and decode the digital signals you haven’t been able to in the past.

Here’s what you are going to need:

Uncompressed DSDPlus and DSDPlusDLLs. Copy the DLLs into the extracted DSDPlus folder. Now all the DSD Plus files are in the same folder.

Then extract DSD, then copy SDRSharp.DSD.dll into the Sdrsharp folder. Copy the text in the text file and add it to the plugins.xml file in the Sharsharp folder.

Extract VBCable. Find the setup file (use x64 if you have that pc) and run the file as administrator. Then install driver. You will have to reboot afterwards.

Then have a look from 5:58 in the video below and do the following.

After that, open SDR Sharp.

Go to Audio, and for the output, select cable input – this will pump the audio from the SDR to the Virtual cable input.

From DSD interface, select cable imput here. This will mean the audio from the SDR now goes down the Virtual Cable to the DSD software. Select configure in the DSD interface and change the input audio device number to the input of AirSpy and not something else. Once you have done this, test by changing frequency or pressing the stop button, the blue wave box (number 2 in the above picture) should stop.

If you are not sure what numbers to use, the dos screen that opens when you start DSD has the numbers of input and output devices. Make sure you set this correctly else your input will not work, or you output will give you no sound. Once you have set it correctly, press Create Command Line to update.

On the Decoder Options tab, you can leave it at Auto Detect, but if you know what it is, then you can manually select the mode you want. Once you select the mode you want, press Create command line then ok so the settings get updated.

Tune into the correct frequency that has the digital transmission, then enable aux audio output. In DSD Interface, press enable Aux Audio Output.

Once on a digital frequency, press Start DSD. It then opens a dos screen, this will tell you where the audio output will be, eg speakers. Audio input device will be where you selected on DSD plus, which is the virtual cable.

If it all works, you should hear slot 1 in your left speaker, and slot 2 in your right speaker. If not, check you are on a frequency that has a transmission. Then the graph (2 above) is moving (if not your audio to DSD isn’t getting there), then the dos screen should have lots of text running (if not it may not be a digital transmission).


If your still struggling getting this set up, try the following web site: SDR Users Guide.

There are heaps of more information I could post here, but here are some of the plugins I recommend:

Plugins

Shuttle Plugin

Scanner Frequency – here is a video on this plugin.

DSD Plus – as mentioned above. Here is another video to look at.


Further Reading

Enjoyed that? Please add your comments below or let us know how you went. I hope it was useful. Remember to subscribe so you don’t miss out on our future posts. Here are some other similar articles you may enjoy:

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Australian DMR Repeaters

There are several DMR networks around the world, and more and more start all the time. The Australian DMR network currently covers the entire country and is for Australian residents only.

It can often be hard to find which DMR repeaters are online, offline and where they are, especially if you travel a bit like me.

Here is a few links that may be of some use. Please let me know if these links no longer work.

A map of all DMR repeaters around Australia is available here.

If you want to check the status of these above repeaters, have a look at this page. It shows which ones are currently online, or offline.

Online repeater map is a great page showing all repeaters around Australia. It is well worth the look at if you are traveling or are going to be in Australia. https://www.onlinerepeatermap.com/

Another way is via the DMR database. If you put the start of the repeater call sign in the middle repeater section it will list the repeaters in your area. For example, all repeaters in my area start with VK3, so I put in VK3 in the middle callsign box and selected begins with and got a list of registered repeaters. This will work all over the world. https://www.radioid.net/database/search#!

Further Reading

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WizNet DMR

The WizNet DMR app is still in beta testing, and at the time of writing this, you have to not only have a currently have a licence as an Amateur Radio Operator, but approved to be part of the beta testing group. You can do this by googling the web site, submitt a few details, and a password. Once approved, you will get an email with a link and log in details that will tell you how to install.

I understand this app is currently only available on android devices at this time, however there are plans to extend this to Apple.

Installing on Android, you will need to make sure you turn on the feature where you download sources from anyone. Once installed, put in your callsign, and your password as per the email and your in.

The first thing you will need to do is click on the settings menu right down the bottom left of the screen. In there you will have your call sign already populated, but you will need to put in your DMR ID number. If you have two Wiznet apps on different devices, you can use two different DMR ID numbers. You can on this same settings screen you can adjust your mic gain also.

Over the left side is five menu options.

The first item at the top on the left side expands out the menu’s so you can see the text for each item and not just the icon.

Talk Groups

By default you should land Talk Groups page which has the icon of a person and paper next to the person.

On this list you can see available talk groups. The scan ones will scan talk groups on that network, and will continue to scan until someone is talking.

Talk Group

When you click on a talk group, you will go to a new screen, the Talk Group screen, where you can see yourself in that talk group, and whoever else is in that talk group that is also using the same app.

If you go into a dynamic one, you can put in the Talk Group number at the top of the screen and select set to join that group. If the dynamic talk group is on the TGIF network, then you can select talk groups on that network to join, however it is on the BrandMeister network, you can select talk groups on that network.

When you switch the dynamic talk group to another talk group, you take everyone already logged into that group with you, so it is usually best to ask to see if anyone else is using it first.

Down the bottom of the screen is the button you press to transmit – you have to hold it unfortunately but I guess this stops accidents.

At the top of the screen is a chat window also. Just select the background and type.

2020 Update

Since writing this review, this software no longer seems to be available. Thank you for the many people who have contacted me to let me know they couldn’t download it. I am not sure what happened, but while it was working it worked very well. Hopefully it will return or turn into something similar soon.


Other Apps and Software

Hope that was helpful. Below are some other apps I have looked at also:

  • Orion Push to Talk
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  • WizNet DMR
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Android Apps

  • DROID-Star
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  • Orion Push to Talk
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  • Using an Android TV Box for Ham Radio
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Apple Apps

  • Orion Push to Talk
    Orion is an app that isn’t really known in my world, perhaps because it isn’t available on all platforms, or because it does transmit your exact location to everyone on the channel. However there are some benefits to this mode and does add another communication mode to your list. You can also create your own…

Mini Keyboard Options

I bought this wireless keyboard/mouse which was very cheap. It does come with a USB dongle. It has a fantastic range since it is 2.4GHz RF. The back also has good grip which apparently isn’t common on all models. You can select what colour you want the plastic to be also.

Setup

Setup couldn’t be easier. Make sure it has batteries installed, some come with a rechargeable, mine required triple A batteries. Make sure the switch on the top side of the keyboard it to the left position for it to turn on – it should light up when you do this. Then in the battery compartment will be the USB dongle. Just plug in the USB dongle before powering up (if it is into an Android box), then it will connect and work fine straight away. If your model came with the battery, there may be a cord to charge the unit also.

Touch Pad

The top part of the keyboard in the touch pad area controls your mouse position. Using two fingers will scroll up and down the scroll bars. Unfortunately two finger zooming does not work. Right click can be done by a simultaneous two finger tap. You can turn the touch pad on or off by pressing Fn + F8.

Changing the Touch Pad Tracking Speed

All you have to do is press the blue Fn (function) button down the bottom left corner, then press the space bar.

Shortcuts

The keyboard comes with the following shortcuts at the top of the keyboard.

Far left Shortcuts

Over the far left side are media buttons, including volume up and down, pause and play, next track

Middle shortcuts

Either side of the touch pad are shortcuts, then are the following from top to bottom in order

Left Side of Touch PadRight Side of Touch Pad
1. Open Music Player App1. Open Google Search
2. Open Email App2. Go home button
3. Mute button3. Internet Browser
4. Mouse left button ( this is also on the far left of the letters below on the top)4. Mouse right button (this is also on the far left of the letters below on the bottom)

Far right Shortcuts

Over the right side at the top are directional buttons with an OK button in the middle.

Sleep Mode

The Keyboard will auto sleep and wake-up to save the battery. When the keyboard is idle for 3 minutes, it will go into auto sleep mode, and all LED indicators will turn off.

Keyboard Glowing Colours

Some keyboards glow at night. Unfortunately mine foes not, but if yours does, you just press blue the Fn key down the bottom left and the F2 key to change the colours. Press Fn-F2 again to change to the next colour and so on. This will give you the three standard colours. However, if your feeling nerdy, you can press and hold down the Fn key, then using your thumb on the touch pad, move it left and right to get all the other colours. There are 7 different colours in total.

If you want to be a geek of all the nerds, you can do the RGB spectrum, but pressing and holding F2 and then scrolling your thumb across left to right on the touch pad, then let go. It will scroll through all the colours automatically. You can still use the touch pad as normal while it automatically changes colours. I guess not having this saves some power also, however it does turn off every 30 or so seconds. There is a switch up the top right on the side of the keyboard that will turn it off also.

Fuction Keys

Apart from what I have already mentioned, you can do the following functions using the blue function key (Fn) found down the bottom left corner.

  • Fn + Fn = Enter into pair mode
  • Fn + F7 = take a screen shot
  • Fn + F8 = turn on or off the touch pad
  • Fn + F9 = F11 key
  • Fn + F10 = F12 key
  • Fn + Back = Delete
  • Fn + Page Up = Home

Other Keyboards

Here is a review on several other keyboards of similar size. This is not my video, but thought it gave a good quick overview of several models available.

Conclusion

The size of the keyboard is just right, not to small so you can’t find it or use it easily, but not to big so it takes over the desk or armchair. It works well with my Android TV device, but understand it does work on other devices such as windows, Raspberry Pi etc.

If I was going to buy it again, I may get the one with the inbuilt battery installed that can be re-charged, however once the batter goes, you almost have to replace it. My model could be loaded up with rechargeable batteries you can buy from anywhere.

Before I was using this Keyboard, I used a USB mouse, and while in some ways that is easier than a touch pad, to have a full keyboard and the touch pad all cordless with a good range is fantastic.

Other things to read

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Using an Android TV Box for Ham Radio

If you want to get onto Digital Radio for less (way less) than $100, then you may be interested in this.

I have Apple equipment, and therefore miss out on a lot of the testing apps that are only available on Android. There seem to be more and more there all the time! I don’t want to purchase another phone, just to get a few apps, but I did hear of an alternative.

A friend of mine in Canada, Martin VE3KLR, gave me the idea of using an Android TV box and actually using it as a radio! He had already done it and believes it could end up doing a lot more than what I have posted below. With the amount of apps now available, you can talk on almost all networks now via Android. You sure get some funny replies when you say your on a TV box.

I had to do it as more and more people were talking about Android apps.

Not knowing much about Android at all, this project started to quickly become overwhelming, so I ended up putting it on hold for some time.

However I later decided to get back on this project. It just seemed to easy. So this is what I did.

The Box

I purchased a cheap Android TV Box, mine was worth $40.99 including postage. You could almost purchase any Android box, but I decided to get one with at least two USB ports, and blue tooth. Blue tooth will allow me to connect other things like keyboards, microphones and mouses as I want to. It also has wifi, which means less cords.

At first, I was using this TV Box with out old CRT TV, and it worked well, the writing was a little hard to read, but it still worked. I then plugged it into a HDMI monitor, and it worked very well, very clear and easy to use.

As this little box plugs into a nice TV screen, you could easily use this as a small computer by installing a word processor. Social media, YouTube and web browsing are easy also.

Once connected, I connected it to my Wifi. On my box, you can plug in a Ethernet cable which is handy if your shack is far from your router, but I chose not to at this stage.

When you get one, make sure yours comes with the correct AC plug for your country. You may want to think about if you want HDMI, Blue tooth and how many USB ports does it have. Remember, these boxes are meant to store and play video, so they usually come with a lot of hard drive space and grunt for what we are going to us it for.

Below are some pictures of the one I got, however I am not necessarily recommending it. There are heaps of options available, so do a bit or research first, but remember most reviews will be about how well they play movies, which is not why I got mine.

As I mentioned earlier, there are heaps of Amateur Radio apps now available, and new ones all the time, so you could install these on the same device.

I started with some of the basic apps, like Echolink, Peanut, Teamspeak and Zello. These also have the echo function where you can test sound also.

The Monitor

You probably don’t need to get a monitor, but you may want to when you see what I got. I purchased a small 9 inch monitor that runs off 12 volts. I was going to get a 5 inch one, but it ran of 8 volts, and the one I got is just that little bit bigger for my eyes. This monitor has several different input options so I could future proof this handy little monitor. It also had speakers inbuilt, so when using HDMI, everything sound and video is taken care of.

You can get larger monitors ones, or smaller ones, but I thought this one would sit well on my desk. It also came with a nice stand. You can see in the video how well it sits on my desk in front of my PC monitors.

What other things do you need?

For me, I found a mouse most useful. You can use the remote, but if you plug in a mouse, you almost don’t need a remote anymore.

A microphone is something else you should invest in. You can purchase these for almost $1 delivered, but I often think you get what you pay for, and the microphone is very important. Having said that, as you are going to use the microphone on digital talk groups only, some would argue it isn’t as important as analog.

A keyboard would be great. You could plug it in via USB, or connect in via Bluetooth. I haven’t done this as yet, but plan to.

You can plug in a USB Bluetooth dongle also should you not need to.

Other Uses

Another use for this is to put your electronic QSL cards on it. It makes a great slideshow for the radio shack! They usually come with large hard drives so lots of space for these.

As I mentioned earlier, it could be used for gaming, watching videos,

Mobile

The screen is 12 volts, so this could easily go in the car also, and the Android TV Box could be secured on the back of it. The box runs off 5 volts, so this could easily be also run in the car if your cleaver enough to drop 12 volts to 5 volts.

The TV box can uses wifi, so you should be able to connect it to your mobile phone.

I hope that helps get a few more onto the digital bands. It is a lot of fun on digital. I have made good friends all over the world over digital. Having this Android TV Box not only allows me access to Android Apps, but pretty much gives me a new radio so I can now receive and transmit on a different talk groups while using my current setup to work other talk groups at the same time.

Update: since writing this post, I have updated and changed my android TV box as I suddenly had sound issues. The one I ended up getting had a later version on android and more memory etc.

Other Reads

Below are some other posts I have done on similar topics

Welcome to the site

Hi there from Down Under, Melbourne Australia. Thank you for visiting my radio web site. Below is what items by category is available on this web site.

Thanks again for visiting. This web site is still being built, so don’t forget to Follow us to get updates as they come. You can do this by the Follow Us box.

I also have a travel web site, so if you are interested in Australia at all, I highly recommend you visit it. One of our biggest trips was a 5 week holiday through outback Australia. We traveled through outback Australia to see why these remote locations are there, how they started, and what are they doing today. These locations are some of the most remote places in the world. This trip has an amazing amount of Australia’s information, pictures, maps and video’s and I guarantee you will learn something even if you are an Australian or been there before. See the Northern Australia trip via the link below. https://sangsteradventures.wordpress.com/

Hope to hear you on the air sometime soon!

73’s from VK3TBS, Ben, Melbourne Australia

Updating Firmware

Updating the firmware on the GD-77 can be daunting, as you can easily “brick” your radio. So be extremely careful.

Make sure you understand why you are updating your firmware first. Since there is the option of “Bricking” your radio, and I only have the one digital radio, I decided not to update the firmware unless I had the need and then was sure it was a stable version. Remember, don’t fix something that isn’t broken. Once it is broken, you can’t fix it if it becomes a brick.

At the time of writing this, I was told version 3.1.8 was the latest most stable version. Clearly this will change, so do your own current research. So the first step is to download that version, and the software to download it onto the radio.

Download latest firmware updater software from https://www.radioddity.com/pages/radioddity-download and save it on your PC.

Then after extracting the downloaded file, go into the Update Software folder and into the English folder and run the Update.exe file.

Browse to find the firmware you have chosen to download to the radio. It will be a .sgl file.

Firmware downloader

Then, plug in the radio via the USB cable and before turning on the radio, press both buttons at the same time bellow the PTT button, then turn radio on. Only the green light should turn on with a blank display.

Make sure you have selected the correct port on the update software. Then press download to update the firmware on the radio.

Once download has completed, turn radio off, disconnect and turn it back on to check it works.

Other Reads

Here are some other posts I have done on a similar topic

My Radio Diddity GD-77

Starting in digital can be a little overwhelming to start with, no matter how many years you have had your licence. I even had a digital scanner for many years prior to starting in the digital world of Amateur Radio.

After working out what digital radio is, what you can do on it and how it worked, I then started researching what equipment was required.

According to other reviews at the time I was looking, many people claimed that the RadioDitty GD-77 was the best value for money.

My Radioditty GD-77 while on holidays
My Radioditty GD-77 while on holidays

After a month or so of using the RadioDitty GD-77 through repeaters, I purchased an OpenSpot2. I did a lot of research prior to this, and had settled on the OpenSpot1, however when I went to purchase it, only the OpenSpot2 details. It happened to be the week it was launched, so there were no reviews available at the time.

Currently my digital setup is very simple, it just has:

  • One hand held radio, the Radio Ditty GD-77, this came with charger, USB cable and remote microphone
  • OpenSpot2 Hotspot. This came with a power cable.

With this simple setup I am able to talk the world via

  • The BrandMeister network
  • The Australian VK-DMR network
  • Other DMR networks around the world, eg New Zealand, Canada etc
  • YSF Reflectors
  • C4FM
  • NXDN Reflectors
  • SharkRF servers

The above is just to name a few networks. Each of the above networks range from a few Talk Groups, to thousands upon thousands of them from all over the world.

In 2019, my family went for a huge five week trip through outback Australia. We went to some of the most remote parts of the world. We had to carry a lot of water, food and supplies. We also had to carry extra battery power to charge fridges etc. I would have liked to have taken a HF radio with us given the outback probably didn’t have a lot of interference, however we simply didn’t have enough room, or power.

Instead we took a very simple setup, my GD-77, my openspot2 and a small battery back that ran my openspot and mobile phone. Even without power, I was able to talk the world with a little mobile reception or wifi.

Many people have many radio’s for different networks, making it hard to keep updated, and obviously cost a lot. My digital setup costed far less than it costed me to get on 2m/70cm many years ago. And did I mention, this radio also does analogue, so yes, you can use this radio on 2m and 70cm simplex or via the repeaters and no one will know you are actually talking on a digital radio.

The only down site is it is a little hard to program and navigate the channels. The radio is built for commercial operations, and not really for amateur radio, however it can be done. Commercial operations usually have a small number of talk groups or repeaters/frequencies, where as amateur radio uses a lot. However once you nut it out, it isn’t really that hard.

Other things to read

Here are some other posts I have done on similar topics

  • Treehouse
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  • DROID-Star
    After talking to a friend just to the north of…
  • SMS via Radio or Hotspot
    One of the most underutilised by very cool feature that…
  • Portable Hot Stop with Battery Pack
    The new OpenSpot3 has come out with an internal battery.…
  • BlueDV Windows 10 GD-77
    I found it hard to find useful information on how to run the OpenGD-77 hotpot mode with Windows 10. At the time of writing this, there is a lot about this topic using a pistar and even android or ISO, but not much with Windows 10. This is my experence with BlueDV and Open GD-77 using a Windows 10 PC.…
  • Australian DMR Repeaters
    There are several DMR networks around the world, and more…
  • Upgrade to OpenGD77
    This page is just a help to friends I have spoke to who are interested in upgrading the Radioditty GD-77 to the OpenGD77 software. This is not my work, however I really do appreciate Roger and his team have done to put this together. I claim no responsibility if it breaks your radio, however I have not hear this happen now in some time. I am not an expert at all with OpenGD77, I have just put this together to help people who have asked me how to do it.…
  • Basic Antenna Fundamentals
    A good friend of mine, Mike VK5ZC, put the information below together and asked me to put it on my web site. He has spent a lot of time putting it together with pictures and videos, so I encourage you to have a good read.…
  • The History of Ham Radio
    A good friend of mine, Mike VK5ZC, put the information below together and asked me to put it on my web site. He has spent a lot of time putting it together with pictures and videos, so I encourage you to have a good read.…
  • USB Device Error PL2303HXA
    I went into the device manager and found the error, my cable no longer worked. This same issue happened to a USB Card reader also.…