Hi for all,
good news, finally I got very rare NMT cellular testset with NMT software on memory cards and I can test all of NMT 450/900 phones. It´s very expensive and little bit hard to use but finally I can works on it. Very helpful for our NMT basestation project in future.
Here first video of working NMT phone
https://youtu.be/MYe13k2Uv1E
It´s universal test set for lot of different analogue services, HAM radios, PMR, Trunk or anything. With 50W of power output. Duplex cards and Cellular Radio option. Momentally I can try all phones knows Finland NMT frequency.
I can simulate all situations, handover, change or power, call to phone or call from phone, strong or bad signal. Of course I can see all parameters. Too It´s working with AMPS cellular.
Handset can be connected (two persons can call, one with phone, second with handset connected on CMS-52).
Very interested. Maybe can be repogrammed. It´s running on DOS system, with EXE apps.
I will try next phones, photos, videos and another later.