SKU: 31504984641

3W-5W NEW USDX+ HF Transceiver HF Ham Radio QRP CW Transceiver All Mode 8 Band

Sale price$105.09 Regular price$116.77
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Description

3W-5W NEW USDX+ HF Transceiver HF Ham Radio QRP CW Transceiver All Mode 8 BandDescription: This is a shortwave QRP SSB CW transceiver. The ultra small size is easy to carry for outdoor use, using 1602N LCD screen, built in speaker, support to connect to PC, use digital mode software control such as FT8, JS8, FT4, etc., support CW automatic decoding. Features: 1. 8 tracks cover: 80m 60m 40m 30m 20m 17m 15m 10m2. Excellent PCB layout design in line with high frequency circuit design principles to ensure excellent performance3.

Description:
This is a shortwave QRP SSB/CW transceiver. The ultra-small size is easy to carry for outdoor use, using 1602N LCD screen, built-in speaker, support to connect to PC, use digital mode software control such as FT8, JS8, FT4, etc., support CW automatic decoding.

Features:
1.8 tracks cover:80m/60m/40m/30m/20m/17m/15m/10m
2.Excellent PCB layout design in line with high frequency circuit design principles to ensure excellent performance
3.Whether using internal battery or external 13.8v power supply, it can achieve 3-5w power in 8 ranges, and reserve SOT-223 and TO-220 pack pads needed to upgrade
4.High emission efficiency, 80m/60m/40m/30m/20m efficiency is greater than 80%, 17m efficiency is greater than 70%, 15m/10m efficiency is greater than 60%
5.High accuracy KDS brand TCXO, frequency accuracy is better than 1ppm, frequency stability is better than 0.5ppm
6.Ultra small size: 83*38*124mm (excluding protruding parts)
7. Abundant interfaces (cat, ptt out, mic/key, k-head mic)
8.All LPF parts use 100v c0g/np0 capacitors
9.Use genuine Omron original magnetic latching relays
10.Use op amp chip with lower noise than LM4562
11.Built-in speaker with cavity
12.BNC antenna interface

The usdx+ update is as follows:
1.Moved the headphone and power key/microphone jacks to the front panel for easy access to the headphone and power button.
2.Move the keys to the bottom of the LCD screen for a larger touch area and a more comfortable keystroke experience.
3.Upgraded built-in speaker effects, double the sound!
4.PCB reserved pads for various upgrades, out of the box, can be used as a template for DIY upgrade learning
5.Quickly change qrp cw frequency.
6.Support cw sidetone volume adjustment.
7.Support cw sidetone adjustment.

List of Functions:
1.Support all modes: usb, lsb, cw, am, fm (ssb mode has good reception effect, but poor transmission effect. AM and FM modes are free, and the effect is not good).Filter dsp filter: 4000, 2500, 1700, 500, 200, 100, 50hz passband.
2.Function DSP functions: automatic gain control (AGC), noise reduction (NR), Xmit voice trigger (VOX), RX attenuator (ATT), TX noise gate, tx unit control, volume control, dbm/s meter.
3.Sidebar/Carrier Suppression SSSSB transmit: better than -45dbc, imd3 (dual tone) -33dbc, receive: better than -50dbc
4.Support multi-band support, continuously adjustable 10m within 80m frequency range (from 20khz..99mhz, loss performance)
5.Open source firmware, built with arduino ide; allows experimentation, new features can be added, contributions can be shared via github, software complexity: 2000 lines of software-based Vovox code available for fast full control (qsk and half-qsk operations) or rx/ Auxiliary switch tx for external control of ptt/pa output using fully digital tx-delay stage and software based ssb stage transmitter in digital mode (no cat or ptt interface required): controls the phase of the sill si5351 (by switching at 800kbits/s Small frequency changes under i2c) and magnitude of pa (via pwm pa key shaping circuit).
6.Software-based all-digital SDR receiver stage (optional): The I/Q (complex) signal is sampled from a quadrature sampling detector digital mixer and a 90 degree phase shift is performed mathematically in software ( Hilbert transform) and three independently switchable analog faders (0db,-13db,-20db,-33db,-53db,-60db,-73db) from the pre-receiver by adding Atten sidebands.
7.Receiver noise floor mds: -135dbm at 28mhz (200hz bw).
8.Receiver receiver front-end selectivity: +/-2khz steep 45db/decade tuning frequency rolling.
9.Blocking blocking dynamic range: 20khz offset 123db, 2khz offset 78db.
10.cw decoder, direct/iambic-a/b keyer.
11.vvfo a/b + rit and split, and the corresponding relay through i2c.
12.cat supports cat with filter switch (using kenwood TS-480 protocol).

Specifications:
1.Type: hf qrp sdr transceiver
2.Mode: ssb/cw
3.Frequency range: 3.5-30mhz
4.Built-in mic
5.Antenna/connector: 50ohms/so-239

Product Size Chart:


Please note:
1.This product has no built-in battery and no power source. It needs to be equipped by the user. Make sure you don't mind before buying! ! !
2.The power interface is 5.5mm, the power supply voltage is 12.6V, 1A 2A can be used.
3.The battery specification is 11.1V/12.6V 4000mAh lithium battery.
4.You can buy a power supply or battery according to the above values, thank you.

Package Included:
1 x usdx+ Transceiver
1 x Microphone
4 x Machine Foot Pads

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 31504984641

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★★★★★ 5
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Excellent frother/mixer Pros: - Quality feels premium. - Plenty of power to mix even with a drink packed with ice and peanut butter. Basically a mini handheld mixer. - Ease of use is great. I appreciated that this had a longer brother so I can mix drinks in taller cups. Also the grip is fantastic and it is easy very easy to change the speed with just one hand so you can hold the drink with the other. Longevity - So far it's been holding up and hasn't needed a battery replacement. Cons: None so far.
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Reviewed in the United States on December 10, 2025
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Michelle
Omaha, US
★★★★★ 5
Highly recommend!
Color: Gray
Love this frother!!! Purchased to replace an Aerolatte that stopped working after a reasonable period of use. Right out of the box, it was charged and ready to go. I’ve been using it daily for about 5 weeks on the same charge it had on arrival and it’s still going strong. Love the variable speed and easy to work with one hand. And this baby can froth! It froths far better than our old Aerolatte. Also love the rechargeable feature so no more AA batteries wasted. This handy kitchen tool makes my morning coffee a true highlight. Highly recommend the Maestri milk frother!
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Reviewed in the United States on February 18, 2026
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RetroGirl
Cuba, US
★★★★★ 5
Best Frother Ever!
Color: Black
Great little frother and very powerful after just one charge. I haven’t charged it since the first day and it is still going strong after 3 weeks. I use it daily for coffee froth, but have used it for mixing other things as well. It works great on mixing drink powders into water and for making salad dressing from scratch. It’s one of the best things I’ve purchased on Amazon for kitchen tools. My old frother ate through batteries and was 1/10th as powerful. This one really is amazing. Great quality heavy duty but still small machine. Extra attachment heads are also a bonus.
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Reviewed in the United States on May 23, 2026
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Toni L
Battle Creek, US
★★★★★ 4
Very good frother that gets the job done extreamly well
Color: White
I hvae used this frother primarily for smoothies and coffees. Each time, it does a wonderful job. Deducted a star for the location of the speed control which is ontop of the device. It's akward to use one handed while attempting to control the speed, athough it's advertised as making it easier. It's not!
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Reviewed in the United States on November 27, 2025
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JD
Battle Creek, US
★★★★★ 5
Good quality
Color: Black
Have used the frother 5 days in a row. It comes already charged. Fingers crossed no issues when I eventually have to charge it. I love everything about it. It’s worth a little bit of extra money as you can control the blending power from slow to fast. Easily held with both hands to coordinate. Today for a change I elected to just add a touch of bourbon caramel syrup to my oat milk -an excellent choice! They give you two attachments which is helpful. I’m not hard on my kitchen appliances but it’s good to know I have an immediate back up if needed. I rinse frother attachment out immediately in a cup of warm water and air dry on a towel. At this point, I highly recommend. My next adventure in the kitchen will be Matcha tea. I will use the bamboo whisk for the actual tea. If I decide to add oat milk to the top,(such as for a cold latte) I will use this frother.
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Reviewed in the United States on June 4, 2026

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