HamGeek uSDX-8Band HF QRP SDR Transceiver All Mode SSB/CW Transceiver with LCD Display

HamGeek uSDX-8Band HF QRP SDR Transceiver All Mode SSB/CW Transceiver with LCD Display

Description:
HamGeek uSDX-8Band is optimized and modified based on the open source project uSDX/QCX-SSB of Guido PE1NNZ. It is a short wave QRP SSB/CW transceiver. With 1602 LCD and ultra small size, it is easy to carry and to use.

Open source address: https://github.com/threeme3/QCX-SSB
Discussion group: https://groups.io/g/ucx/topics

Performance Characteristics:
- 8-band: 3.5mhz/5.3mhz/7mhz/10mhz/14mhz/18mhz/21mhz/29mhz
- Transmission efficiency: efficiency is higher than 85% (3.5mhz/5.3mhz/7mhz/10mhz/14mhz); efficiency is higher than 80% (18mhz/21mhz); Efficiency higher than 70% at 29mhz
- Connect to PC and use FT8, JS8, FT4 and other digital mode software to control; Support CW automatic decoding
- It can reach 3-5w power in 8 bands and can freely upgrade and transform PA module (TO-220)
- High precision TCXO for KDS, frequency accuracy better than 1ppm, frequency stability better than 0.5ppm
- Independent core board and RF PA board to avoid self signal interference
- Ultra small size: 100 x 88 x 38mm/3.9 x 3.5 x 1.5" (excluding projections)
- 100V c0g/np0 capacitor is used for LPF part
- Use original magnetic hold relay for Omron
- Use original lm4562 or lm833 op amp chip
- Rich interfaces: HEADPHONE, PTT OUT, MIC/PTT, SPK/MIC
- BNC antenna interface (BCN-SL16 adapter can be used to match antenna)
- External power supply: 12.6vdc (13.8vdc power adapter)

System Functions:
- Full mode support: USB, LSB, CW, AM, FM
- all-digital and software-based SDR receiving channel
- All-digital and software-based SSB transmission channels
- Receiver attenuator: 0dB, -13dB, -20dB, -33dB, -53dB, -60dB, -73dB
- DSP filter bandwidth: 4000, 2500, 1700, 500, 200, 100, 50 Hz
- Receiving bottom noise: -135dBm at 28MHz (BW=200Hz)
- Receiver front-end selectivity: Tuning frequency -45dB / 10x roll down +/ -2khz
- SSB/carrier suppression: transmit, better than 45dBc; Receive, better than 50dBc;
- DSP features: Automatic gain control (AGC), noise reduction (NR), voice triggered Xmit (VOX), RX attenuator (ATT), TX noise gate, TX drive control, volume control, dBm/S table

Rear Panel Connector (JACK):
1. Headphone Jack (3.5 mm)
* Tip – Audio out
* Ring – Audio out
* Sleeve– GND

2. MIC/PTT (KEY) Jack (3.5 mm):
* Tip – Mic input
* Ring – PTT
* Sleeve – GND

CW-KEY INPUT MODE:
* Tip – DAH
* Ring –DIT
* Sleeve – GND

3. SPK/MIC Jack (3.5 mm):
* TIP: SPEAKER
* RING 1: MIC
* RING 2: PTT
* SLEEVE: GND

4. PTT OUT Jack (3.5 mm):
* Tip – SSR output
* Ring – SSR output
* Sleeve – GND

Package Included:
- 1 x Main Unit
- 1 x Power Adapter
- 1 x Handheld Microphone