I have been radio amateur since 1974 (callsign OH8AXN and later also OH8XN).
In 1992 my callsign was changed to OH7KID when I moved to my current QTH.
In 2010 I received also callsign OH7EH (which I prefer to use).
Current working conditions:
Tranceivers:
SSB: Hermes-Lite 2.0 + BLA350 PLUS (100W to 200W)
FT8/SSTV: Xiegu X6100 (5W to 50W/PA)
Amplifier:
RM ITALY BLA350 PLUS
DIY 30-50W
Software
Thetis, wsjtx & YONIQ/MMSSTV
Other:
Microphones: Lenovo Thinkplus Headset
Antennas: 7-band COBWEB and Maldol HS-VK5JR GP for 3.5/7/14/21/28 MHz
Radio
Software-defined radio (SDR) transceiver
Frequency Range 130 kHz - 30 MHz, maximum 5W out
Hermes Lite 2 hardware
Hermes Lite 2+
Thetis Software
FT-817 Manual
FT-817 Simplified Guide
FT-817 Alignment
Amplifier
Compact Transistor-PA (300W, 160-10m)
Built-in power supply
Visit RM ITALY
Assembled using cheap (chinese) parts
- DIY Kit 70W SSB Linear HF Power Amplifier 3.5-30Mh
- XF-LPF-HF 100W low pass LPF unit 3.5Mhz-30Mhz
- Arduino Mini board
- 1.3" OLED Display
- Lots of other parts
Antennas
Max power 1000/800 Watt SSB
Antenna gain on all bands 5 dBi
Limited space (square 2.65 x 2.65 m) antenna
Works on HF bands (20-4m) Visit AWK site
5-Band ground plane
Frequencies 3.5/7/14/21/28 MHz
Projects
Main assembly parts:
- Raspberry Pi 4 and Display 4.3"
- Raspberry Pi Pico
- Radioberry V2.0 Board
- DIY Radioberry HAT
- DIY PSU and Audio Amplifier
- Linear Amplifier Board (30W)
- XF-LPF-HF 100W low pass LPF unit 3.5Mhz-30Mhz
- Old spare enclosure
- Software: pihpsdr by VU2DLE
Links
Contact details:
OH7EH
KP42VQ
Lehmo Finland
@ esko.oh7eh(at)gmail.com