Transceiver is intended to concerned work with PC and sound card. This device opens up absolutely new opportunities for the users, because it’s possible now, not only to hear the signals from the stations, but also to see them on a screen of the SDR-program. It is also possible to record the signal from the air and to reproduce it into the air back. Small number of the components reduces the level of noise floor.
SunSDR is a PC device, which in connection with SDR program represents the full value transceiver. Anodic robust aluminum case doesn’t conduct electricity, which prevents from possible shorts if bared wire hits the case. This device has a built-in protection from polarity reversal. Mounted Jack 6,3 mm connectors possess qualitative electric contact, a factor which makes lower quadrature disbalance. High-speed USB 2.0 interface is used for transceiver’s control.
SunSDR electronic part is executed on one two-layer PCB. Due to this engineering solution the device has certain advantages: greater reliability, small enclosure dimensions and weight. The amount of digital lines on a PCB were reduced because of mounting on the card CPLD. Therefore it makes lower the level of noise pickups from digital chains (because now they are placed inside CPLD crystal). It should be also noted a low level of the carrier frequency transmitter (lower than -55 dB), reached by right component layout of mixer and transmitting tract topology. Band LPFs (low-pass filter) are executed on a ceramic chip coils. Using such technology allows to make lower the level of intermodulation distortion transceiving tract and makes higher a receiving dynamic range.
Receiver has 5 gain levels, which are switched from the program ExpertSDR. Each gain level defines receiver’s sensitivity. Receiver’s measurements with the soundcard M-AUDIO – Audiophile 192 are shown in tables 2 and 3.
SDR Compact HF/50MHz 100W Transceiver YAESU FTDX10 Yaesu has announced their latest compact 160-6 M transceiver: the FTDX10. Based on the specifications, it looks like it borrows heavily from the FTDX101 series.
The features of the new FTDX10 include:
Antenna Tuner Genius XL
Preliminary specification of TGXL automatic antenna tuner - 2000W.
Expected time for production and ordering - first quarter 2021.
APACHE Labs “Andromeda” 100W SDR HF/6m Transceiver
ANDROMEDA integrates all of the elements of an HF software defined radio. The PC, display, DSP and RF elements are all integrated into a single unit giving true standalone operation. The front panel...