Wednesday, 14 January 2026

High Altitude scanning

I had the opportunity to use my scanner GRE PSR-225 on the 12th floor of an appartment in Rotterdam Zuid. It was fascinating to experience the easy reception of VHF/UHF signals at this altitude (appr. 40 m above sea level).

                                       Scanner GRE PSR-225 with 70 cm antenna on balcony

Some signals were very loud. Of course the VHF/UHF repeaters in Rotterdam, Leiden and Den Haag.
AM signals from Rotterdam-The Hague airport on 118.200 MHz were crisp and clear. Also marifoon signals from vessels on the Nieuwe Maas river between 156 - 161 MHz were interesting.

The use of  PMR frequencies 433.200 and 433.300 MHz was apparent. I wonder can we, ham operators, use more than 0.5 Watts on those PMR channels ?
I hoped to receive 23 cm signals, but was unsuccesful. I focussed on the Rotterdam repeater at 1298.625 MHz, but nothing heard there.

Anyway it was nice to use my scanner GRE PSR-225 after a long time again. Interesting device for sure !