オーストラリアから新しい DSB / CW QRP トランシーバーが出ました [QRP]
オーストラリアから新しい DSB / CW QRP トランシーバーが出ました。
これです。
DCT
http://www.ozqrp.com/DCTindex.html
説明には
The DCT (Double sideband and CW Transceiver) is an inexpensive and easy to build QRP kit for the 40M or 80M band. At the core of the transceiver is a microcontroller that controls a digital VFO and LCD, and the transceiver switching and control functions.
だそうで、また
This is a full kit containing everything you need. All SMD parts come pre-loaded with only a handfull of through hole parts to install.
なので、大物部品を半田付けすれば完成するようです。
仕様は
1. Sensitive Direct Conversion receiver.
2. Double Sideband voice transmitter.
3. CW transmitter with semi break-in.
4. Power output variable from 0 to 5W.
5. Stable digital VFO.
6. Customizable frequency tuning steps.
7. Tuning, AF gain, Mic gain and CW drive controls.
8. Easy access menu system.
9. Use with low cost handheld speaker/mic or separate microphone and headphones.
10. Internal battery or external supply. Range 11 to 17V
11. Build for 40M or 80M band.
12. Selectable low impedance dynamic or Electret microphone.
13. Compatible with BAOFENG low cost handheld speaker/mic.
14. Backlit LCD displays frequency, transmit power and receive signal strength, battery voltage and transceiver status.
15. Selectable audio filters: 800Hz BPF or 2.3KHz LPF.
16. 3.5mm stereo headphone connector.
17. 3.5mm straight Morse key socket.
18. Power switch.
19. 2.1mm DC power socket.
20. BNC antenna socket.
21. Carrier suppression up to 50dB.
22. All spurious transmit outputs better than -46dBC.
23. Receive current approximately 80mA.
24. Transmit current approximately 900mA at maximum power output.
25. Reverse polarity protection included.
26. Automatic CQ caller.
です。
マニュアルにブロックダイアグラムが出ていました。
ミキサーに QCX のようなイメージ除去ミキサーを使っていないので逆サイドの信号も同時に受信してしまいます。それはマニュアルにも書かれています。
価格は $125 です。
これです。
DCT
http://www.ozqrp.com/DCTindex.html
説明には
The DCT (Double sideband and CW Transceiver) is an inexpensive and easy to build QRP kit for the 40M or 80M band. At the core of the transceiver is a microcontroller that controls a digital VFO and LCD, and the transceiver switching and control functions.
だそうで、また
This is a full kit containing everything you need. All SMD parts come pre-loaded with only a handfull of through hole parts to install.
なので、大物部品を半田付けすれば完成するようです。
仕様は
1. Sensitive Direct Conversion receiver.
2. Double Sideband voice transmitter.
3. CW transmitter with semi break-in.
4. Power output variable from 0 to 5W.
5. Stable digital VFO.
6. Customizable frequency tuning steps.
7. Tuning, AF gain, Mic gain and CW drive controls.
8. Easy access menu system.
9. Use with low cost handheld speaker/mic or separate microphone and headphones.
10. Internal battery or external supply. Range 11 to 17V
11. Build for 40M or 80M band.
12. Selectable low impedance dynamic or Electret microphone.
13. Compatible with BAOFENG low cost handheld speaker/mic.
14. Backlit LCD displays frequency, transmit power and receive signal strength, battery voltage and transceiver status.
15. Selectable audio filters: 800Hz BPF or 2.3KHz LPF.
16. 3.5mm stereo headphone connector.
17. 3.5mm straight Morse key socket.
18. Power switch.
19. 2.1mm DC power socket.
20. BNC antenna socket.
21. Carrier suppression up to 50dB.
22. All spurious transmit outputs better than -46dBC.
23. Receive current approximately 80mA.
24. Transmit current approximately 900mA at maximum power output.
25. Reverse polarity protection included.
26. Automatic CQ caller.
です。
マニュアルにブロックダイアグラムが出ていました。
ミキサーに QCX のようなイメージ除去ミキサーを使っていないので逆サイドの信号も同時に受信してしまいます。それはマニュアルにも書かれています。
価格は $125 です。
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