Function: 1. Remove the headphones and the power button/microphone jack to the front panel, convenient to connect the headset and the 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. Upgrade the built-in speakers to double the sound 4. PCB to reserve a variety of upgrades required pad, out of the box, can be used as a DIY upgrade learning template 5. Change the QRP CW frequency quickly 6. Support CW side volume adjustment 7. Support CW side tones 8. This is a shortwave QRP SSB/CW transceiver. Ultra-small size for portable outdoor use, 1602n LCD screen, built-in speakers, support to connect computers using FT8, JS8, FT4 and other mode software control digital, support CW automatic decoding Features: 1. 8 tracks covering 80M/60m/40m/30M/20m/17M/15m/10m 2. PCB layout design in line with high frequency circuit design principles to ensure excellent performance 3. Power can achieve 8-stop 3-5w, and reserve the necessary sot-223 and To-220 pack pad for upgrading 4. High launch efficiency 7. KDS high precision tcxo brand, frequency accuracy above 1ppm, frequency stability above 0.5ppm 8. Ultra-small size: 88x39x124mm (without bulge) 9. Rich interfaces (cat, ptt out, mic/key, k-head mic) 10. All LPF components use 100v c0g/np0 capacitors 11. Using op-amp chips are lower than those of lm4562 noise 12. A built-in speaker with a cavity 13. BNC antenna interface Explanation: 1. Support full mode: usbãÂÂlsbãÂÂcwãÂÂamãÂÂfm (ssb mode reception effect is good, but the transfer effect is poor. AM and FM mode is free, the effect is not good) 2. Filter DSP filter: 4000,2500,1700,500,200,100,50 Hz passband 3. Function DSP function: automatic gain control (AGC) , noise reduction (NR) , XMIT Voice Trigger (Vox) , RX attenuator (Att) , TX Noise Gate, TX unit control, volume control, DBM/S instrument 4. Sidebar/carrier suppression SSSSB emission: superior to -45dbc, IMD3(dual tone) -33dbc, receiver: superior to -50dbc 5. Support for multi-band support, in the 80m frequency range of continuous adjustable 10m (from 20khz. 99mhz, loss performance) 6. Open source firmware, built using Arduino IDE; allows experimentation, new features can be added, contributions can be shared via github, software complexity: 2000 lines based on 7. The software vovovox code can be used for fast complete control (qsk and semi-qsk operations) or RX/auxiliary switch TX to be used in digital mode (no cat or PTT interface is required) 8. The PTT/PA output is externally controlled by the all-digital tx-delay stage and the software-based SSB stage transmitter: the phase of sill SI5351 is controlled (by a small frequency change i2c at 800 kbits/s) and the PA amplitude is controlled (by a pwm pa key shaping circuit) 9. Software-based all-digital SDR receiver level (optional) : sampling of I/Q (complex) signals from a digital mixer with an orthogonal sampling detector, and mathematically perform a 90-degree phase shift (David Hilbert transform) in the software by adding an Atten sideband 10. Three independent switchable analog pushers (0db, -13 db, -20 db, -33 db, -53 db, -60 db, -73 db) from the front receiver 11. Receiver background noise mds: -135 DBM at 28 mhz (200 hz bw) 12. Receiver receiver front-end selectivity: +/-2 khz scrolling at steep 45 db/decade tuning frequency 13. Blocking dynamic range: 20khz offset 123db, 2khz offset 78db 14. CW decoder, direct/iambic-a/B keying 15. VVFO A/B + RIT and split, and the corresponding relays pass through i2c 16. The CAT supports cat with a filter switch (using the kenwood TS-480 protocol) Package includes: - 1 x transceiver - 1 x the microphone - 1 x charger - 4 x machine floor Mats
功能: 1.将耳机和电源键/麦克风插孔移至前面板,方便连接耳机和电源按钮 2.将按键移至 LCD 屏幕底部以获得更大的触控区域和更舒适的按键体验 3.升级内置扬声器效果,声音翻倍 4.PCB预留各种升级所需的焊盘,开箱即用,可作为DIY升级学习的模板 5.快速更改 qrp cw 频率 6.支持 cw 侧音音量调节 7.支持 cw 侧音调整 8.这是一个短波 qrp ssb/cw 收发器。超小体积便于携带户外使用, 1602n液晶屏,内置扬声器,支持连接电脑使用FT8、JS8、FT4等模式软件控制数码,支持cw自动解码 特点: 1.8 条轨道覆盖 80m/60m/40m/30m/20m/17m/15m/10m 2.符合高频电路设计原则的PCB布局设计,确保卓越性能 3.功率可达到8档3-5w,并预留必要的sot-223和to-220 pack pad进行升级 4.高发射效率 7.KDS高精度tcxo品牌,频率精度高于1ppm,频率稳定性高于0.5ppm 8.超小尺寸:88x39x124mm(不含突出部分) 9.丰富的接口(cat、ptt out、mic/key、k-head mic) 10.所有 LPF 部件均使用 100v c0g/np0 电容器 11.使用比lm4562噪声更低的运放芯片 12.带腔体的内置扬声器 13.BNC 天线接口 说明: 1.支持全模式:usb、lsb、cw、am、fm(ssb模式接收效果好,但传输效果差。AM和FM模式是免费的,效果不好) 2.Filter dsp filter:4000、2500、1700、500, 200、100、50hz 通带 3.功能 DSP 功能:自动增益控制 (AGC)、降噪 (NR)、Xmit 语音触发 (VOX)、RX 衰减器 (ATT)、TX 噪声门、tx 单元控制、音量控制、dbm/s仪表 4.侧边栏/载波抑制 SSSSB 发射:优于-45dbc,imd3(双音)-33dbc,接收:优于-50dbc 5.支持多频段支持,在80m频率范围内连续可调10m(从20khz..99mhz,损耗性能) 6.开源固件,使用 arduino ide 构建;允许实验,可以添加新功能,可以通过 github 分享贡献,软件复杂性:2000 行基于 7.软件的 Vovox 代码可用于快速完全控制(qsk 和半 qsk 操作)或 rx/辅助开关 tx 以在数字模式(无需 cat 或 ptt 接口),使用 8.全数字 tx-delay 级和基于软件的 ssb 级发射机对 ptt/pa 输出进行外部控制:控制 sill si5351 的相位(通过在 800kbits/s 下的微小频率变化i2c) 和 pa 的幅度(通过 pwm pa 密钥整形电路) 9.基于软件的全数字 SDR 接收器级(可选):从正交采样检测器数字混频器对 I/Q(复数)信号进行采样,并在软件中以数学方式执行 90 度相移(希尔伯特变换)并通过添加 Atten 边带 10.来自前置接收器的三个独立可切换模拟推子 (0db,-13db,-20db,-33db,-53db,-60db,-73db) 11.接收器本底噪声 mds:-135dbm at 28mhz (200hz bw) 12.接收器接收器前端选择性: +/-2khz 陡峭 45db/decade 调谐频率滚动 13.阻塞阻塞动态范围:20khz 偏移 123db,2khz 偏移 78db 14.CW解码器,直接/iambic-a/b 键控器 15.VVFO A/B + RIT和 split,以及对应的继电器通过 i2c 16.cat 支持 cat 带过滤开关(使用 kenwood TS-480 协议) 套餐包括: -1 x 收发器 -1 x 麦克风 -1 x 充电器 -4 x 机器脚垫
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