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Elecraft K4 new SSNR vs older LMS NR with external BHI module

For those that don't follow Elecraft product announcements, last week a public beta firmware was released that contains the much anticipated Spectral Subtraction Noise Reduction, available for usage in all modes. The older Least Mean Squared NR method is still available in the rig, allowing users to switch between the methods, as desired. I've been publicly critical of the older K4 LMS NR method for SSB on user forums and mailing lists, especially for a flagship rig at this price. So when the SSNR firmware announcement was made, I installed it within an hour of its release. Short version: this is a HUGE improvement. I don't what other HF rigs have deployed this technique, but IMO, this development keeps the K4 at the top of the list of Amateur HF rigs.

I made a video comparing the...
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Radioddity HF-010 Portable Antenna Review

Radioddity recently contacted me, asking if I'd like to take a look at the new version of their portable HF antenna package, the HF-010. I'm a sucker for portable antennas because my favorite way to operate is in the great outdoors, even if it means just going to a local park or down to the dock on the ocean. I had looked at previous versions of this antenna but never pulled the trigger on buying it because I have a full arsenal of Buddipole and Chameleon stuff that covers every band HF band (I even put those two products together to achieve a 160 meter portable antenna). When I heard that this new Radioddity HF-010 covered 6-80 meters and also had new mounting options, I wanted to try it.
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The antenna...
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AI said it was Impossible: A Compact, Portable, 35 Watt Backpack Packet Station

Background

I few months ago, I set out on a quest to put together a mid-power backpack VHF packet station using equipment I already had, but with one catch: I wanted the ability to deploy it with a self supporting vertical antenna for use in situations where suspending antennas from trees or structure was impossible. I knew what type of components were necessary to make this idea work, but I couldn't find the critical piece: the 1/2 wave vertical compact antenna that could handle the 35 watt target power output. So I decided to turn to Microsoft Copilot AI in an attempt to find what I was looking for, but all I got was responses that what I was trying to do was not feasible unless I used some type of Slim Jim antenna or vertical dipole that I could suspend from a...
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Retevis Ailunce HA2 10 watt 2 Meter/440 Handheld APRS Radio: An Introduction

Introduction
January 2026 marks the arrival of Retevis' latest offering, the Ailunce HA2 handheld radio. In this review, I'll do an introduction to this new radio, describing how some of the new features like APRS work and what future developments users can expect. Rather than providing snap judgments or buying recommendations, my focus is on presenting the what the HA2 does well and where it needs some improvements. I’ll also discuss how responsive Retevis has been to early feedback. Lastly, read all the way to the end for an early release discount code!
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First Impressions and Build Quality
The Ailunce HA2 impresses right out of the box with its IP67 rating, signifying robust resistance to...
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Tidradio TD-H3 Plus VHF/UHF Handheld Review

Tidradio recently contacted me and asked if I would take a look at their new TD-H3 Plus that just came out. This is an upgraded version of the TD-H3 which I reviewed last year that features a new user interface, bluetooth, faster processor, USBC programming and updateable firmware. Tidradio sent me one radio to evaluate, but since this radio also includes a new SMS texting feature, I purchased another to test that as well.

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Pictured in the above photo is the new TD-H3 Plus ,a bluetooth handheld speaker mic and a bluetooth headset speaker mic. The radio has two USBC ports, one on the bottom of the battery for charging, and one below the microphone input, which is used for programming...
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Cyber Monday 2025 Radioddity QT80 Giveaway!

To celebrate the 2025 Holiday season, Radioddity is giving away a QT80 HF Radio to WorldwideDX Members on Cyber Monday - December 1st, 2025!

In addition, the Black Friday and Cyber Monday sale is on now...click the banner below for details!

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The Radioddity QT80 is an 80 watt all mode transceiver that covers 15-10 meters. Earlier this year I did a full review that can be found here.


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This giveaway drawing has a VERY simple and generous set of rules to encourage as many members as possible to participate:

  • Any worldwidedx.com member with a minimum of 5 posts may enter. The posts can be anything that is not spam For example: a new thread in any section, an introduction about yourself, a...
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Radioddity GD-168 Amateur HT

Thanks to Radioddity and WWDX for the opportunity to win this HT in the contest. I am posting this review in the GMRS section because that is how I am currently using it as I continue to work on getting my ticket. This HT is a "gate way" radio as it has the features needed as the user grows and expands their capabilities. If you are interested in getting your ticket, but want to try GMRS first, this is the radio to get. I will be adding more to this as time allows.



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Retevis RT97L GMRS / UHF Repeater Extended Review

The Retevis RT97L is a 25 watt portable and versatile repeater primarily sold in its GMRS configuration. But it's important to understand that this repeater can be special ordered to operate anywhere in the 400-470Mhz range. In this article, I'll focus on the GMRS configuration, it's practical applications, and why I really like this repeater as a central component in an overall GMRS system.

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The repeater can be ordered as a standalone unit, or in various packages that include base antenna, coax, and mic options. In the pic above, the repeater is shown with the GMRS base antenna in the rear and two Retevis Ailunce HA1G 10 watt GMRS handheld radios; all were sent to me by Retevis...
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Radioddity 13th Anniversary GD-168 Radio Giveaway!

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To celebrate their 13th Anniversary, Radioddity is giving away a brand new GD-168 VHF/UHF handheld radio! This is a 5 watt, dual channel radio that supports both Analog and DMR, with built-in APRS and Satellite tracking

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Here's a direct link to the product website: https://www.radioddity.com/products/radioddity-gd-168


This contest will have a new set of rules:
  • Any worldwidedx.com member may enter.
  • To enter, as a tribute to Radioddity's anniversary, reply to the thread: What year and why did you get into the Radio Hobby?
  • Once you have added your post to the "Anniversary thread", reply here that you understand the rules and wish to enter the contest, including a link to your...
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Retevis RT97L GMRS Repeater Review Video

Hi everyone! I just posted a detailed review and test of the new Retevis RT97L GMRS Repeater on youtube (article coming here soon!) There is a link in the video for their Facebook group where they're offering some of these at 1/2 price until the end of Aug 2025...jump on this and tell them you saw it here!



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