Archive for January 2020

HF preamplifier weak signal DX noise

Will High Gain HF Preamplifier help work Weak Signal DX?

High Gain HF Preamplifier for Weak Signal DX? Is it true that a high gain HF preamplifier will enhance the ability to work weak signal DX stations? Broadly speaking, the answer is NO! it won’t. However, for operation on VHF, UHF, and microwave bands, a good low noise preamplifier surely becomes important under most circumstances, for HF bands it is a different story. Though an experienced HF radio operator knows this too well, there are quite a few people who have a false notion regarding this. On various amateur radio forums, Facebook groups, as well as during personal interactions I have come across people who believe that adding a preamplifier to their HF radio rigs might improve their weak-signal DX prospects. Let us try to examine why such a notion is unsustainable and incorrect. We will also briefly examine why a preamplifier makes sense for VHF/UHF or microwave. What is it that sets HF apart from the higher frequency bands? Recap of Noise levels in Radio Communication Environment The prevalent noise levels in a communication system environment determine the limit... Click Here to Read Full Article […]

Click social media icons to share article

1 Star2 Stars3 Stars4 Stars5 Stars

(3 votes, Rating: 5.00) - Please vote the article with your valuable star rating. Thanks! Basu (VU2NSB)

Loading...
Click above for Ham Rig Reviews

Recent Articles & Posts

  • Radio Transceiver S-Meter – Pitfalls to avoid

    Radio Transceiver S-Meter – Lesser known facts An S-meter of an HF radio transceiver is a very important instrument on the rig and is used extensively for signal reporting by amateur radio operators while in Read More…

  • Radio Communication Microphones

    Radio Communication Microphones – The Untold Story How to optimally set up and use a microphone in a radio communication environment? This is perhaps one of those questions that rarely tickle in the minds of Read More…

  • The Ubiquitous Dipole Antenna

    The Center-fed Half-Wave Resonant Dipole Antenna The Dipole antenna is perhaps structurally the simplest antenna to fabricate and deploy. It requires a minimal set of hardware components and is quite light-weight. All Dipole antennas need Read More…

  • Geodesy for Terrestrial HF Radio

    Geodesy and Maps for Terrestrial HF Radio Acquiring a working knowledge of the basic concepts of Maps and Geodesy for terrestrial HF radio communication is important to radio amateurs. The term Geodesy has its origin Read More…

  • Elements of Amateur Radio Station

    Amateur Radio Station (Ham Shack) A thoughtfully set up amateur radio station (Ham Shack) goes a long way to provide a pleasant and fulfilling experience for years at end, in the world of amateur radio. Read More…

Blog Archives

Newsletter Subscription

Subscribe to our newsletter and receive regular updates on new posts and articles.
We keep your data private and share your data only with third parties that make this service possible. Read our Privacy Policy.