OK7DR
Oct 28, 2017, 2:13:41 PM10/28/17
to okqrp
Vítám v konferenci nového člena OK1IN
a blahopřeju k fajn krabičce. Pokusme tuto poměrně pustou konferenci zase trochu oživit.
Máte-li někdo také nějakou novou QRP (i jinou) hračku, neváhejte a pochlubte se!
Hitem posledních dní zdá se býti v kategorii malých monobandů
Autor této konstrukce Hans Summers G0UPL autor např. zdařilých WSPR nebo TCXO kitů
provozující e-shop QRP Labs jich prodal už skoro tisícovku.
Tady je přehled vlastnosti:
- Easy to build, single-board design, 10 x 8cm, all controls are board-mounted
- Professional quality double-sided, through-hole plated, silk-screen printed PCB
- Choice of single band, 80, 60, 40, 30, 20 or 17m
- Approximately 3-5W CW output (depending on supply voltage)
- 7-16V recommended supply voltage
- Class E power amplifier, transistors run cool… even with no heatsinks
- 7-element Low Pass Filter ensures regulatory compliance
- CW envelope shaping to remove key clicks
- High performance receiver with at least 50dB of unwanted sideband cancellation
- 200Hz CW filter with no ringing
- Si5351A Synthesized VFO with rotary encoder tuning
- 16 x 2 blue backlight LCD screen
- Iambic keyer or straight key option included in the firmware
- Simple Digital Signal Processing assisted CW decoder, displayed real-time on-screen
- On-screen S-meter
- Full or semi QSK operation using fast solid-state transmit/receive switching
- Frequency presets, VFO A/B Split operation, RIT, configurable CW Offset
- Configurable sidetone frequency and volume
- Connectors: Power, 3.5mm keyer jack, 3.5mm stereo earphone jack, BNC RF output
- Onboard microswitch can be used as a simple straight Morse key
- Built-in test signal generator and alignment tools to complete simple set-up adjustments
- Built-in test equipment: voltmeter, RF power meter, frequency counter, signal generator
- Beacon mode, supporting automatic CW or WSPR operation
- GPS interface for reference frequency calibration and time-keeping (for WSPR beacon)
Nevím zda si ho stihnete dát pod letošní stromeček. Pokud ho snad už někdo máte,
podělte se o své zkušenosti.
73 Zdeněk OK7DR
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