Video

Echotest with BlueDV and DVMEGA

 

Working hard to get Fusion working on BlueDV!

Sometimes some sound interrupts on TX but will be solved by Guus PE1PLM soon.

 

Sep 05

Fusion almost working on BlueDV and DVMEGA

 

 

Aug 08

Just ordered this board for my EchoLink project

sv1afn-DRA818board

For more info: https://www.sv1afn.com/dra818.html

I ordered the VHF board for now until the UHF board is finished.

 

Image

New toy arrived!

My new toy arrived!! Yaesu FT2D with APRS and Fusion!

IMG_20160705_181524

Jul 01

Information on the Blue Stack Shields – What does what!

BlueStackOverzicht2

Jun 25

Working on a Windows version of BlueDV ( DMR only )

Working on a BlueDV windows version. DMR only!

Software will be also free.

BlueDV-windows

 

bluedv-windows

Mar 24

DMR on a Arduino UNO

Funny project… ( not finished )

What I used:

– DVMEGA dual band on a Arduino MEGA
– Arduino UNO with ethernet module
– Hytera PD-365
– ( software I wrote)

The UNO is logged on to DMR and sending the DMR frames to the DVMEGA.

At this moment I can only listen to DMR. Hope to have time soon to make the transmit part.

 

May 16

Connection to HAMNET

Two weeks ago I placed a Mikrotik RBSXT-5nDr2 on the roof of my house.

Yesterday I managed to get the HAMNET connection from my house to the Alticom Tower in Ijsselstein. My public 44.x.x.x ip address is operational now!

GerbrandyToren

 

 

 

 

 

 

 

 

 

 

 

 

 

The distance between my house and the tower is around 8km.

Mikrotik-LinktoHAMNET

 

 

 

 

 

 

 

 

 

 

 

 

More information/configuration will follow soon!!

 

Feb 08

My new echolink hotspot!

I was looking for a lightwight echolink hotspot for within my house. I have one hotspot for DSTAR ( see picture ) but never found a solution for echolink.IMG_20140527_203049
On ebay I found the DRA818U ( UHF ) and DRA818V ( VHF). Both transceivers are very small and have many options like CTCSS, SQL pins, serial poort for configuration changes and a good frequency range.
See specs: DRA818U – Dorji

The software I use is svxlink version 14.08. In this version you can use the GPIO pins on the Raspberry PI.
Keep in mind that the DRA818 is working on 3.3V. You can see in my picture below that I use the 3,3V from the raspberry. Please don’t do this on older models of the raspberry PI!
This will fry your raspberry!! Older raspberry’s can only give 50mA!!

On the DRA818 there is also a squelch PIN ( pin1 ). This pin is connected to one of the pins on the raspberry. This is a VERY handy solution for the detection of the incoming signal!!!!
In the past  I tried a lot of solutions in svxlink like VOX or CTCTSS. Most of the time CTCSS is filtered in the transceiver and VOX is to slow.

I left the DRA818 on low power. So it will not use more than 500mA an can be powered by the raspberry. If you put it in hight power the DRA818 will be very hot and eventually die. you have to cool the device.

Now I want to make a shield for it so I can put it directly on the raspberry.

IMG_20150208_113726

Feb 01

Yesterday I received my new DMR radio.

PD7L - PD-368

Yesterday I received my new PD-36X DMR radio!

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