New hardware for PI1SHB

We’ve installed new hardware for PI1SHB.
Replaced the old Raspberry Pi (model B) computer for a new one with more CPU capacity and RAM.
We have improved the audio levels for both bands, and tweaked the TX delay and TX tail times.

Interlink PI2SHB – PI1SHB

9th of July 2016, a few weeks ago when we replaced the antenna for PI1SHB and added an extra antenna for 2.4 GHz to make an interlink connection between the locations from PI1SHB and PI2SHB.

Last weekend we were at the PI2SHB location to place the other 2.4 GHz antenna for the interlink connection.

The white flat building afar is the location where PI1SHB is located, the distance in a direct line of sight is 2,15 km (1,33 mi).
View to PI1SHB

Albert (PA3GCO) and Paul (PE1LXX) preparing the antenna and coax cable.

PI2SHB Antenna + Wi-Fi Antenna

Using laptop to see how strong the signal is and to set the antenna in the right direction.

PI2SHB Repeater 2016

The Wi-Fi interlink connection works immediately and the signal is strong enough for a stable connection between the locations.
Now we need some time to test, and hope to add new features soon !

Antenna maintenance at PI1SHB

24th of June 2016, today we’ve been busy for the whole day to replace a new antenna and coax cable for PI1SHB.
The old antenna was a Maldol VT-160D dual-band antenna for 2m and 70cm (Diamond X50 clone), and was more than 15 years old.
The 2 yagi antennas for 23cm are removed, they are not in use anymore for a few years.
This was the old setup for PI1SHB packet node, active on 2m and interlink connections on 23cm between PI1EHV (Eindhoven) and PI1RNI (Utrecht).

PI1SHB Maldol VT-160D

Paul (PE1LXX) and Arie (PD1ANF) removing the old antennas.

Removing Maldol VT-160D

Paul (PE1LXX) prepares the mounting clamps for the new antenna on the pipe.

Antenna pipe

We replace a Diamond X300N dual-band antenna for 2m and 70cm to improve the coverage in our area.
We see much stronger signals with this new antenna, so we’re happy to see the good results !

Diamond X300N set-up

Later today we placed antennas for HAMNET, a wireless connection between the location from PI2EHV/PI6EHN in Eindhoven and us on 5 GHz.
The other 2 acces points are for local use, beaming to east and south directions.

PI1SHB Diamond X300N

Changes at PI1SHB

5th of March 2016, we’ve made some small changes at PI1SHB.

  • Because that we’ve had some problems with the I²C bus, we changed the 2m TNC-Pi connection back from I²C to a serial port.
    The 70cm TNC-Pi is still running on I²C and works fine for now.
  • Added 3 club station object beacons for PI4SHB, PI4OSS and PI4TIL, it transmits every 20 minutes.

APRS club stations

New equipment for PI1SHB

22th of January 2016, we installed new equipment at PI1SHB, the APRS digipeater/IGate for ‘s-Hertogenbosch.
Replacing the radio’s for Motorola GM350 radio’s.
In the old setup we used a Kenwood TM-V7E (2m) and Kenwood TM-451E (70cm).
A second TNC-Pi was installed to replace the TNC2S-DK9SJ 70cm test setup.
All of the new equipment is installed in a new 3HE 19 inch case.

– 2x Motorola GM350 radio’s
– 2x TNC-Pi
– 12 volt power supply
– 12 volt to 5 volt power converter
– Raspberry Pi

At the moment there is a problem with the 70cm Motorola GM350, so we used temporarily a Kenwood TM-V7 for 70cm.
We hope to replace the 70cm Motorola GM350 soon.

PI1SHB 19 inch test

PI1SHB 2m APRS digipeater test setup

17th of January 2015, we installed a test setup with a Yaesu FT-209RII tranceiver and TNC2S-DK9SJ modem. The computer is a small Raspberry Pi with Aprx v2.08 software.
On the first view it works not bad, but when there’s a mobile station nearby the digipeater than it works bad. It looks like that the radio can’t handle stronger signals.
Below you can see a movie about the test setup.