最近 ネットで見かけた QRP トランシーバー ３機種 [QRP]
最近 ネットで見かけた QRP トランシーバー ３機種です。
まず、DK7IH OM のトランシーバー２機種です。
〔“Gimme Five” reloaded – A compact 5 band QRP SSB transceiver in SMD technology〕
Abstract
A compact SSB transmitter/receiver will be presented. This unit covers 5 bands within the amateur radio spectrum (3.5, 7, 14, 21 and 28 MHz). Receiver is a single conversion unit with an interfrequency of 9 MHz. Transmitter uses 5 stages and has got a power level of 10 watts PEP output.
Frequency generation is done by integrated ready made modules like an AD9850 as VFO, and an Si5351 as LO. Microcontroller is an Arduino Pro mini AtMega328 driving a colored TFT LCD with ST7735 chipset.
The whole device has been constructed in SMD but can also be setup by using “thru hole” techniques or mixed installations.
The unit is built into into a mounting frame of aluminum sheets of standardized width. Size of the whole radio is 17 x 12 x 5 centimeters. It is, to a certain degree, the “Little Brother” of the “Midi6“-Transceiver that had been designed mainly for experimental purposes.
〔An experimental HF 6-band SSB transceiver〕
Abstract
An SSB radio for the HF bands will be presented. Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1.8, 3.5, 7, 14, 21 and 28 MHz) within the short wave amateur radio spectrum. The rig also features colored LCD and front panel backlight.
次は、QRPver の Minion-SDR です。
〔- All-band, 10-band HF SDR transceiver Minion SDR〕
SSB SDR transceiver is a shortwave, ten band, multi band. QRPver Minion-SDR.
This is a compact ten-band shortwave QRP SDR transceiver (1.8, 3.5, 5, 7, 10, 14, 18, 21, 24, 26-29 MHz.).
This transceiver is designed to work in the lower (LSB) and upper (USB) sideband with both a telephone (SSB) and a telegraph (CW). It is possible to work in digital forms of communication "DIGI" (JT / PSK / BPSK / FSQ and all others ...) as well as the reception of radio stations with AM modulation.
Onboard the transceiver there is a USB port for connecting to a computer to control the transceiver from amateur radio programs using CAT protocol “Kenwood TS-440”
The transceiver has small dimensions 100x103x30 mm. and a small weight of 450 grams. It is suitable for work on the field trip, on the nature, cottage ... The same for everyday work, at home.
まず、DK7IH OM のトランシーバー２機種です。
〔“Gimme Five” reloaded – A compact 5 band QRP SSB transceiver in SMD technology〕
Abstract
A compact SSB transmitter/receiver will be presented. This unit covers 5 bands within the amateur radio spectrum (3.5, 7, 14, 21 and 28 MHz). Receiver is a single conversion unit with an interfrequency of 9 MHz. Transmitter uses 5 stages and has got a power level of 10 watts PEP output.
Frequency generation is done by integrated ready made modules like an AD9850 as VFO, and an Si5351 as LO. Microcontroller is an Arduino Pro mini AtMega328 driving a colored TFT LCD with ST7735 chipset.
The whole device has been constructed in SMD but can also be setup by using “thru hole” techniques or mixed installations.
The unit is built into into a mounting frame of aluminum sheets of standardized width. Size of the whole radio is 17 x 12 x 5 centimeters. It is, to a certain degree, the “Little Brother” of the “Midi6“-Transceiver that had been designed mainly for experimental purposes.
〔An experimental HF 6-band SSB transceiver〕
Abstract
An SSB radio for the HF bands will be presented. Featuring 12 to 20 Watts of output power (depending on DC supply), full DDS frequency generation, covering 6 major frequency bands (1.8, 3.5, 7, 14, 21 and 28 MHz) within the short wave amateur radio spectrum. The rig also features colored LCD and front panel backlight.
次は、QRPver の Minion-SDR です。
〔- All-band, 10-band HF SDR transceiver Minion SDR〕
SSB SDR transceiver is a shortwave, ten band, multi band. QRPver Minion-SDR.
This is a compact ten-band shortwave QRP SDR transceiver (1.8, 3.5, 5, 7, 10, 14, 18, 21, 24, 26-29 MHz.).
This transceiver is designed to work in the lower (LSB) and upper (USB) sideband with both a telephone (SSB) and a telegraph (CW). It is possible to work in digital forms of communication "DIGI" (JT / PSK / BPSK / FSQ and all others ...) as well as the reception of radio stations with AM modulation.
Onboard the transceiver there is a USB port for connecting to a computer to control the transceiver from amateur radio programs using CAT protocol “Kenwood TS-440”
The transceiver has small dimensions 100x103x30 mm. and a small weight of 450 grams. It is suitable for work on the field trip, on the nature, cottage ... The same for everyday work, at home.
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