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Показаны сообщения с ярлыком mobile radio. Показать все сообщения
Показаны сообщения с ярлыком mobile radio. Показать все сообщения

среда, 29 августа 2018 г.

Chasing satellites. Part 2 - listening on Icom

This evening I used the mobile Icom IC-F211 for listening to the satellite for the very first time. I heard IT9ZSB, and even was able to conduct a QSO with OH5LK.

Chasing satellites. Part 1.

Last winter I discovered a very nice activity: chasing the radio amateur satellites. I built the handheld antenna (open sleeve, 144+430 MHz on the single boom and being fed by the single cable), attached it to my handheld radio Wouxun KG-UV6D, and started listening to satellites and, quite later, transmitting. That was amazing! I loved this activity very much. It's an unforgettable feeling when you stay in the middle of the field covered by snow, hold the antenna in your frozen hand and try to not forget the callsign of the station just called you.

суббота, 25 августа 2018 г.

Bosch KF-166-6

Couple days ago I have bought a nice specimen of mid-1980 devices - the VHF automobile transceiver Bosch KF-166-6. Specifications say:
The Bosch motor vehicle radios KF 166 Chp operate in the 2m band of 146-174 MHz with a channel spacing of 12.5 kHz, 20 kHz and 25 kHz in Simplex or Semidupiex modes. The devices are intended for non-public land mobile broadcasting and are supplied in 2-channel version. It is possible to use a 5-tone sequence encoder-evaluator simple design without remote coding or a uP-controlled 5-tone sequence encoder-evaluator with up to 5 digit encoding.
Depending on the version, the transmit power is 6W, 12W or 25W (export only), the NF output power is about 4W to 4 ohms. The devices are for the connection designed for vehicles with 12 V and minus pole on the vehicle chassis. For other voltages, use a ballast regulator or converter.