Unfortunately, two processors and the screen work all the time and draw power. The disadvantage of the radio is the power consumption in the reception mode, much higher than in the case of IC-703 (about 600 mA vs. CW OPERATION USING HAM RADIO DELUXE UPGRADE– the possibility of firmware versions upgrade (currently 1.6). – reasonable quality and organization of the screen (on the surface of 3 x 3 cm, even a tiny waterfall was stowed) 5W, to avoid overheating during a 2-minute continuous transmission) – no fan (OK for SSB, but limits the setting of the maximum power in digital emissions to approx. power supply 8A 12VDC => can be powered from the car socket – built-in input filters, single-stage pre – amplifier and RF attenuator, antenna tuner I had one problem requiring soldering: the power fuse socket melted (in the 12VDC cable), I had to replace it for a more durable one. The ready – made audio/CAT interface is available from .Īfter a few months of use, I can say that the radio is OK. For the interface with the laptop, a cable with galvanically isolated audio path is useful, and a USBCAT connection for radio control (USBCAT cable comes included with the radio equipment, it is used to change the firmware version). I bought this radio for home and field work with digital emissions. I recommend buying in the EU – no need to interact with the Customs Office, and you get the Swedish or French warranty, not Asian. The price is around 500 (USD in Chinese, and EURO in European stores). Has reasonable dimensions and parameters. It is an “almost SDR” transceiver (the first mixer is analog) for the KF band, with a nominal RF power of 20W. The radio is designed and manufactured in China. Descriptions of this radio are available from sellers, a fair opinion can be found in the eHam portal. Recently (half a year ago) a new transceiver – Xiegu G90 became available. Added to this are Elecraft products, and Chinese “implementations” of the mcHF radio. In SP reality, the most popular radio stations were ICOM IC-703 and YAESU FT-817 (or currently FT-818). Holiday work usually imposes restrictions on the consumption of electrical power, the antenna system, and finally the dimensions and weight of the radio station. These protocols are supported by applications such as Ham Radio Deluxe, FLDigi or WinWarbler. In these modes you do not need to synchronize radio stations. Shortwave radio operators dealing with asynchronous emissions (PSK-31 and faster, Olivia, RTTY) are still operating. An alternative solution are GPS time receivers, connected to the computers which control the radios. In practice, this is done by using time servers available on-line, thus requiring access to the Internet. They require time synchronization of the radio stations. Both protocols come from the works of K1JT. Timidly overcoming this is the JS8 Call, which is an attempt to create a network of stations which transmit information without the need of everybody hearing all other stations. It allows you to “get the QSO” almost in automatic mode, but it does not allow to send anything “out of hand”. The current fashion in digital emissions is (unfortunately) FT8, one of the modes supported by the WSJT-X application. CW OPERATION USING HAM RADIO DELUXE FULLI use the full power setting of radio, and techniques to decode transmissions at the noise level. The power of several watts on the SSB is not overwhelming. Last time I was actively practicing CW on the RBM-1, as an operator of “Operation Bieszczady 40” in 1978. However, I have a problem: the elephant has stepped on my ear which I use to receive CW. I have been practicing it for years – especially from the Greek islands. QRP work has many advantages, especially during holiday trips. Xiegu G90 – Transceiver for QRP operations, and digital emissions
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