ExpertWebConsole by Dan OK1HRA is a web interface for the SPE EXPERT 1K-FA linear amplifier, designed as an alternative to the original application Expert_Console2.exe.…
final stage
A power amplifier that does not have another amplifier behind it is called a final stage in amateur radio terminology. Final stages use bipolar and LDMOS transistors, but even in the 21st century, vacuum tube final stages are very popular.
JUMA PA600 is the latest addition to the family of linear amplifiers from the Finnish team JUMA Radio (Juha Niinikoski, OH2NLT, and Matti Hohtola,…
In the era of software-defined radio (SDR), the amateur radio workspace has dramatically changed. Hardware no longer forms a separate world but is closely interconnected…
The practical benefit of the KV amplifier RM Italy MLA 400 is that it is a transistor linear KV amplifier operating in the range…
When Icom launched its flagship LDMOS linear amplifier IC-PW2, it was clear that the modern ham shack requires more…
Every amateur radio operator who has ever embarked on building a balun, antenna choke, broadband transformer, LPF, BPF, or RF amplifier, sooner or later…
The Bulgarian manufacturer ACOM has built a strong reputation in the amateur radio community primarily due to reliable vacuum tube designs that they have created for many years and…
Modern semiconductor power amplifiers (PA) equipped with LDMOS transistors (such as the popular ART1K6, ART2K0FEU series or classic BLF188XR) have brought to amateur radio...
A group of experienced operators from Italy announced their ambitious goal for February 2026. Under the call sign 8R1WA, they will be active on the days of 19...
Just like in previous years, this year Mek SP7VC plans a summer expedition with his partner Kate SQ7OYL in a camper...
Ben (DA1DX, ex-DL6FBL), Win (DK9IP), Andree (DL8LAS), and Lutz (DM6EE) – all active members of the Bavarian Contest Club – will be transmitting...
The team consisting of DK1BT Manfred, DL4WK Wolf, DL6SAK Annette, and DL7BO Tom is already active from the Kingdom of Eswatini (former name...
At the Tokyo Ham Fair, Icom presented a new KV+6m transceiver in the high-end category. The IC-7760 conceptually features a detachable front panel and body...
CQV-SWR120 is a digital power meter and standing wave ratio (SWR) meter covering the range of 1.8MHz-54MHz. Full-color 240 x 240 pixel LCD display...
In preparing for amateur radio exams, it is difficult for candidates to obtain understandable materials from which they could understand questions on electronics and radio technology...
Having a quality signal is a hallmark of an amateur radio operator. To achieve a quality SSB signal, we also have options that were not available years ago...
Thomas DL7BO and DJ6TF are active from Africa's Zimbabwe as Z22O and Z21A in bands 160 – 10m, CW, SSB, FT8, FT4.…
The trio Petr OK1BOA, Petr OK1FCJ, David OK6DJ is preparing for the DX expedition TU5PCT. It is part of the successful expedition S9OK.…
Cheap VHF amplifier How to increase the power of a device at 144 MHz? One option is an LDMOS amplifier with MRF9180. These…
Petr OK1BOA, Petr OK1FCJ, Palo OK1CRM, Pavel OK1GK, Ruda OK2ZA, Ludek OK2ZC, Karel OK2ZI and David OK6DJ are planning an expedition…