A Visit to the SZ1A Club Station – My Personal Highlight in Greece
Introduction My name is Panagiotis (DL6PS), and together with my YL Samara (DO1SCS), we live in Nuremberg, Germany. In addition to our interest in astronomy, we recently discovered the fascinating world of amateur radio. What […]
CQ WW RTTY 2025 This Weekend – Team SZ1A Kicks Off Contest Season Action!
CQ WW RTTY 2025 This Weekend – Team SZ1A Kicks Off Contest Season Action! It’s time for CQ WW RTTY! This weekend, the SZ1A contest station will be on the air, giving out 599 20 […]
What is Dynamic Range?
What is the Dynamic Range of a Receiver? Since the term dynamic range is often used when discussing the performance of a receiver, it is important to clearly understand what it refers to and its […]
Upgrading Our RF Infrastructure: The Search for Better Connectors
Discovering The Problem Over the years, as we’ve continued to develop and improve our contest station here at SZ1A, one issue kept surfacing: the patch cables in our RF signal chain were a consistent point […]
SX17ASTRO On the Air for the 17th National Amateur Astronomy Camp
We are pleased to announce that the special callsign SX17ASTRO will be active from Friday, July 25th to Friday, August 8th, 2025, in celebration of the 17th National Amateur Astronomy Camp (Π.Ε.Ε.Α.), which will take […]
SX9G – Gavdos Island, EU-187: An International Amateur Radio DXpedition
From July 24 to 29, 2025, a multinational team of amateur radio operators will activate Gavdos Island using the special callsign SX9G, participating in the global IOTA (Islands On The Air) contest during the weekend […]
Tower Re(s)urrection: The 20M Yagi Returns to SZ1A
Our beloved 4-element monobander Yagi for the 20-meter band had been taken down temporarily to make room for the installation of our new 21-meter tower, and for a thorough technical inspection and servicing. With the […]
Selectivity and Sensitivity in NBFM Receivers: Fundamental Performance Parameters
Selectivity and Sensitivity in NBFM Receivers: Fundamental Performance Parameters In the context of wireless communications, the quality and performance of a receiver are crucial factors that determine the reliability and efficiency of a system. In […]
Exploring the Caged Hen-Delta Antenna: Unlocking Big DX from Small Spaces
Exploring the Caged Hen-Delta Antenna Unlocking Big DX from Small Spaces Introduction Amateur radio often rewards those willing to explore less-traveled paths. The 6-band, 6m-20m Caged Hen-Delta antenna is one such path — a hidden […]
CQ WPX CW 2025: THIS WEEKEND!
CQ WPX CW 2025: The CW Challenge is THIS WEEKEND! The CQ WPX CW Contest is one of the most anticipated events in the amateur radio calendar, attracting thousands of operators from around the globe. […]