Ampleon ART2K5TPU – new 2.5kW LDMOS transistor for broadband RF power amplifiers
Ampleon has launched the ART2K5TPU LDMOS RF power transistor, offering a 2.5kW output and 1-400MHz frequency range, outperforming its predecessor…
Icom IC-905 VHF/UHF/SHF SDR transceiver – 144MHz to 10GHz
Icom has just announced the IC-905 SHF SDR transceiver that covers 144MHz, 430Mhz, 1.2GHz, 2.4GHz, 5.6GHz and (with the help…
Icom ID-52 VHF/UHF D-Star Handheld Announced
Icom ID-52 is the latest VHF/UHF D-Star color screen & Bluetooth handheld transceiver released by Icom, replacing the ID-51PLUS2.
What’s wrong with ham radio
This is an amazing hobby and has many sides to it, but as anything it's far from perfect. A Twitter…
B1500 – Backpanel Unit for RF power Amplifiers
The B1500 RF amplifier Backpanel Unit is designed to sit between a LDMOS RF amplifier and the rest of your…
Icom IC-705 coming in April 2020, price announced
The new Icom IC-705 should be available starting April 2020, with a MSRP of 124,800 yen + tax. As you…
F600 – a 600W low-pass filter board for 1.8-72MHz
This design offers a practical solution for HF/low-VHF amplifier output filters, handles 600W and is designed to cover all amateur…
Choosing a heatsink for the A600 LDMOS linear amplifier
For optimal performance, the heatsink should have a thermal resistance of 0.1C/W or better at full fan speed. For the…
A600 v2.0 amplifier module – changes and improvements
I have recently made available a new version on the A600 amplifier based on MRF300 LDMOS transistors. Here is the…
A 600W broadband HF amplifier using affordable LDMOS devices
Update: this project is evolving. See this page for the latest version. Kits are available in the shop area. The…