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

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

Loading...
Ham Rig Reviews Coming Soon

SSN SSNf(10.7) – Real-time Solar Data

Recent Articles & Posts

  • Multiband End-fed Half-wave EFHW Antenna

    Multiband End-Fed Half-Wave EFHW Antenna The End Fed Half Wave antenna or the popularly known EFHW antenna has been around almost ever since the inception of HF radio. Nevertheless, the EFHW antenna had in the Read More…

  • SSN, SFI, Solar Data for HF Propagation

    SSN, SFI, Solar Data for HF Radio Propagation Here are some of the important Solar activity parametric data that are responsible for influencing the behavior of the Ionosphere on earth. These in turn, are instrumental Read More…

  • Learn CW Morse Code – Lesson Set 2

    Learn CW Morse Code – Lesson Set 2 This is the Lesson Set -2 in our multi-part series of CW Morse Code hands-on tutorials where we will introduce numerals and a few important punctuation marks Read More…

  • Learn CW Morse Code – Lesson Set 1

    Learn CW Morse Code – Lesson Set 1 This article on Learn CW Morse Code – Lesson Set 1 is the first in our series of lesson sets for beginners and perhaps others too, to Read More…

  • Learn CW Morse Code – Get Started

    Learn CW Morse Code – Get Started If you are reading this article, then in all probability you either wish to learn CW Morse Code from the scratch or are one of those who learned Read More…

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.