USDX-ULTRA SOT POTA Pocket Radio 4 Bands uSDX USDR Built-in Battery 10/15/20/40M HF SSB QRP Transceiver Compatible with QCX-SSB
Introduction:
This is a HF band QRP SSB / CW transceiver. It is very small and easy to carry outdoors. It uses a 0.96 “OLED LCD screen for easy reading.
Built in speaker, support to connect to PC, use FT8, jt65, FT4 and other digital modes, support CW mode, software control, and support CW automatic decoding.
Characteristic:
4-band coverage 10/15/20/40M 4 Band (modified based on the source program and different from the source program)
Excellent PCB design and excellent circuit performance.
Using 13.8V power supply, the power can be up to 3-5w in three bands, and the SOT-223 packaging pad required for upgrading is reserved.
High launch efficiency, with 40m / 20m efficiency higher than 80% and 15m efficiency higher than 60%. (Note: transmission is prohibited in non 40m / 20m / 15m / 10m band and can only be used for reception)
Ultra small volume and weight: 82 * 50 * 20MM (excluding protruding parts), body weight 180g, very suitable for mountaineering.
Multiple interface – cat, MIC / key, audio (headset supporting Android adaptation).
100V or 250V cog / NPO capacitors are used for LPF.
Use Omron magnetic holding relay.
Use ne5532 operational amplifier chip.
Built in high-quality speakers.
BNC antenna interface.
Specification:
Frequency Range:
Receiving: 0.5MHz ~ 30MHz (theoretically it can reach the limit of SI5351)
Transmission: 1.8～30MHz
Working mode: CW, AM, SSB
Minimum step: 10Hz
Antenna Impedance: 50Ω
Operating temperature range: 0℃～+50℃
Power supply voltage: 10.5 ~ 16V DC, the negative pole is grounded.
Current consumption:
Receive: 100mA@Max
Launch: 1A@Max
Body size: 50 x 20 x 160mm (W x H x L) (excluding protrusions)
Weight: about 340g (main unit only)
RF output power: 0.1-5W (SSB/CW)
0.1-5W(AM carrier) @13.8VDC
How to confirm whether the battery is fully charged:
Check the indicator light of the charger. The green light means full charge, and the red light means charging.
Menu function:
|
Menu |
Function Description |
Shortcut operation |
|
1.1Volume |
volume level (0..13) &switch( press and keep turning leftturn ) |
Encoder press + rotate |
|
1.2Mode |
mode (LSB,USB,CW,AM,FM) |
MODEshort press(can only chooseLSB,USB,CW ) |
|
1.3FilterBW |
audio bandwidth(Full,300..3000,300..2400,300..1800,500,200,100,50Hz),Simultaneous controlSSBtransmit bandwidth |
MODEPress twice quickly |
|
1.4Band |
Switch the frequency band to the predefinedCW/FT8frequency (80,60,40,30,20,17,15,12,10,6m) |
Encoder press twice quickly |
|
1.5TuningRate |
Tuning step size10M ,1M ,0.5M ,100k ,10k ,1k ,0.5k ,100 ,10 ,1 |
Short press the encoder once to move the cursor to the right ,longPress the cursor once to move left |
|
1.6VFOMode |
choose a differentVFOorRX/TXseparateVFO(A,B,Split) |
Press twiceMODEkey and keep pressing |
|
1.7RIT |
RXintransit(ON,OFF) |
PressMODEkey |
|
1.8AGC |
automatic gain control(ON,OFF) |
|
|
1.9NR |
Noise reduction level( 0-8 ) ,The load passes and is smooth |
|
|
1.10ATT |
Analog attenuator( 0 ,-13 ,-20 ,-33 ,-40 ,-53 ,-60 ,-73dB ) |
|
|
1.11ATT2 |
CICclass( 0-16 )digital attenuator ,step size6dB |
|
|
1.12S-meter |
SMeter type( OFF ,dBm ,S ,S-bar , VSS ) |
|
|
2.1CWDecoder |
enable / disableCWdecoder (ON,OFF) |
|
|
2.2CWTone |
CWSidetone Frequency Settings( 600 ,700 ) |
|
|
2.4SemiQSK |
OnTXsilentsRXonCWsignandwordspaces |
|
|
2.5Keyerspeed |
CWAuto keyer speedWPM( 1..35 ) |
|
|
2.6Keyermode |
Key type (Iambic-A,-B,Straight) |
|
|
2.7Keyerswap |
Swap electric keyersDIH ,DAHinput (ON,OFF) |
|
|
2.8Practice |
Disable transmit function (ON,OFF) |
|
|
2.9ToneVol |
CWSidetone volume adjustment (1-16) |
|
|
3.1VOX |
Voice control function (ON,OFF) |
|
|
3.2NoiseGate |
voice activatedSSBLevel of emission (0-255) |
|
|
3.3TXDrive |
SSBtransmit transmit audio gain( 0-8 ) ,Step size is6dB ,8=constant amplitude |
|
|
3.4TXDelay |
delayed sending ,to allow externalPAAmplifier’s relay before sendingfully open( 0-255ms ) |
|
|
4.1CQInterval |
give newCQidle time before message(seconds )( 0-60 ) |
|
|
4.2CQMessage |
CQmessage text ,Press the menu key to start sending |
|
8.1PABiasmin |
Launch tube minimum offsetPWMlevel( 0-255 ) ,used to represent0% RF output |
|
|
8.2PABiasmax |
Launch tube maximum offsetPWMlevel( 0-255 ) ,used to represent100% RF output |
|
|
8.3Reffreq |
PLLchip5351crystal actual frequency ,for frequency calibration |
|
|
84IQPhase |
RXI/Qphase offset ,The unit is degrees( 0180Spend) |
|
|
10.1Backlight |
LCD backlight switch (ON,OFF) |
|
|
restore default settings |
Press and hold the encoder and power up |
|
|
Tuning frequency |
Rotary encoder |
|
|
select menu |
dogMENUonce ,Then the rotary encoder |
|
|
Determine the adjustment menu parameters |
dogMENUonce |
|
|
menu back |
dogMODEonce |
|
|
RITorRITreturn |
PressMODE |
Note:
1. This machine is optimized and modified according to the open source settings, and its performance and functions are fully compatible with the original design. More updated functions are subject to the actual use of the firmware version. If you have the skills, you can optimize it, and it is recommended to post your hardware and software update records in the open discussion group. For more information, please refer to the relevant open source files of the original project.
2. Due to different production batches, the appearance will be slightly different. If you cannot accept this, please do not place an order.
3. Because this product is made by hand（DIY products）, there will be some small defects in the production. As shown in the picture, the charging interface is not completely centered, but it will not affect charging and normal use. Undoubtedly, we promise our customers that we will carry out strict testing before delivery to ensure the product function and use. Please feel free to buy! Welcome to consult
Package includes:
1 * Pocket Radio USDX
PHONE: Â 1 MIC 2 GND Â 3 AUDIO 4 AUDIO
MIC/KEY:
MIC mode: 1 GND Â 2 PTT OUT 3 MIC 4 PTT
KEY mode: 1 GND Â 2 PTT OUT Â 3 LEFT KEY 4 RIGHT KEY(Swap order is available via menu 2.7 Keyer swap)
TTL:1 GND 2 RXD(TO USB-TTL CABLE TX)3 TXD (TO USB-TTL CABLE RX) 4 DTR (TO USB-TTL CABLE DTR)
DC IN: Â Negative outside, positive inside
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