uSDX Tri-Band HF SSB QRP Transceiver | 15/20/40M Handheld Pocket Radio
$140.00
$172.78
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Product Description
Description:uSDX is a portable QRP amateur radio shortwave transceiver with a miniature SDR architecture, referring to the portable SDR model that redefines the appearance of uSDX. It can be used as an introductory FT8/CW/SSB learner, where the SSB reception quality is good and the transmission quality is slightly worse.
Specification:
Frequency Range:Receiving: 0.5MHz ~ 30MHz (theoretically it can reach the limit of SI5351)Transmission: 1.8??30MHzWorking mode: CW, AM, SSBMinimum step: 10HzAntenna Impedance: 50??Operating temperature range: 0?桫+50??Power supply voltage: 10.5 ~ 16V DC, the negative pole is grounded.Current consumption:Receive: 100mA@MaxLaunch: 1A@MaxBody size: 50 x 20 x 80mm (W x H x L) (excluding protrusions)Weight: about 200g (main unit only)RF output power: 0.1-5W (SSB/CW)0.1-5W(AM carrier) @13.8VDC
Headphone jack:
1 is ground, 2 and 3 are signals
Mic and key multiplexing port definition:In SSB mode, the function of this socket is microphone, 1 is ground, 2 is microphone (built-in microphone, here is external MIC), 3 is PTT control (panel integrated PTT control, button name is XMIT)In CW mode, it is the key interface. Please note that after switching back to SSB mode, the key can be used as PTT transmission control, and the MIC in the machine is invalid (the plug is inserted into the MIC in the machine and disconnected).
Connection diagram with computer:
The figure below shows the PTT control circuit:
Antenna interface:The antenna interface is SMA, please connect a 50 ohm resonant antenna.
Programming socket:Above the OLED screen socket in the machine, there is a 4P pad, and the square hole is the ground, which is defined as GND/TX/RX/DTR in turn. Please use TTL cable connection to flash the machine, and pay attention to swap RX and TX. Bootloader rate is 115200
Package included:
1 x Tri-Band Pocket Radio
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