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An in-depth review of the Xiegu G106 QRP HF transceiver

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Note that the following review first appeared in the May 2023 issue of TheSpectrum Monitor magazine.

Update: Also, please note that the G106 is on sale at Radioddity at time of posting. With our affiliate link pricing is only $264 US (see note at end of review). Please read this review prior to making a purchase decision!

An in-depth review of the Xiegu G106 QRP HF transceiver

by Thomas (K4SWL)

Last year––in May of 2022, that is––Xiegu announced a new compact field radio that would be added to their line of transceivers: the Xiegu G106.

Xiegu has really made a name for themselves over the past few years with several transceiver offerings, many of which have become very popular. Among these:

  • The Xiegu G90 is a 20-watt transceiver with an excellent built-in ATU. The G90 has become a very popular field radio over the past few years.
  • The Xiegu X5101 is a five-watt shack-in-a-box HF transceiver covering 160-6 meters. The X5105 has become a go-to QRP portable due to its fine built-in ATU and built-in rechargeable battery pack.
  • The Xiegu X6100 is much like the X5105, in that it’s also a shack-in-a-box QRP transceiver, but it leverages SDR technology to provide a beautiful color spectrum display and a host of features not found on its predecessors. Many have adopted the X6100 because its operating system is Linux-based and many enthusiasts have created their own X6100 interface that promised direct digital mode operation.

Because we’re seeing more products like these from Xiegu, the up-and-coming Xiegu G106 stirred interest.

Moreover, Xiegu has become a low-cost leader among HF transceiver manufacturers. In each of the reviews I’ve published about Xiegu radios, my summary statement is that each unit offers a lot of performance for the price. Xiegu transceivers don’t have the most robust receiver front-ends, and the audio is unrefined, but their rigs get the job done and have some serious “fun factor.”

So when I first learned about the new Xiegu G106, I was curious where it would fit into their product line.

Introducing the Xiegu G106

As I was capping off my summer in Canada back in August of 2022, Xiegu retailer Radioddity started shipping the G106. Radioddity had me on the list to send a loaner G106 for review, but  upon my return I found myself so busy that I didn’t immediately request it.

I did watch, however, K8MRD’s initial and updated review of the G106 on YouTube. While it was less than stellar––understatement alert––more relevant to me was that Mike shipped his second evaluation unit to me on behalf of Radioddity.

I connected that G106 to a dummy load, checked the transmitted signal on my SDRplay RSPdx spectrum display, and it simply didn’t look very clean. In fact, it looked worse than it did when Mike checked it only a couple of weeks prior.

I shared my results with Radioddity and told them I didn’t feel comfortable putting the G106 on the air; they asked that the unit be returned and checked out.

Fast-forward to January 2023, when I was once again contacted by Radioddity to see if I would like to field test an updated G106? I answered that I was happy to do so, because I was curious whether the G106 experience had improved.

In the spirit of full disclosure, keep in mind that Radioddity is a Xiegu retailer/distributor––the company is not the manufacturer, nor is it owned by Xiegu. They sent this G106 to me on an extended loan for an honest evaluation.

So where does the G106 fit into the Xiegu product line?  It’s being marketed as a low-cost, entry level, multi-mode QRP HF transceiver that leverages 16-bit CODEC sampling to provide the user with a lot of radio for the price. It’s basic, and meant to be so, in that  it’s only a transceiver; there is no built-in ATU or battery. The G106 is marketed as a bare-bones portable HF transceiver.

I feel like it hits this mark.

The G106 doesn’t have a lot of features or controls one might expect in other Xiegu radios, but it has more features than any other modern HF radio I know of in its price class (see features list below). Indeed, I can’t think of any other 80-10 meter general coverage QRP transceiver that retails for $320 or less. The G106 has this market niche to itself for the moment.

Overview

When I first received the G106, I was a little surprised:  it was even more compact than I had imagined.

The sides of the G106 are rounded and the chassis extends beyond the encoder and front controls of the radio, thus the interior is quite well protected in the event the radio is dropped. This is one of the few QRP field radios on the market that doesn’t need an aftermarket cage. I’ve been transporting the G106 in an old hard shell headphone case a friend gave me. The case isn’t large, but it easily holds the G106 and a power cord with a bit of room to spare.

 

The G106 sports a small monochrome backlit display that’s very easy to read in the shack or in the field with full sunlight.

Besides the weighted encoder (which has soft detents), the volume control, and microphone port, there are also four multi-function buttons located under the small display on the front panel. On top of the radio, there is a power/backlight button, mode/pre-amp button, and two band buttons that also can be pressed and held to change the frequency cursor position. The internal speaker is also mounted on the bottom of the top cover, just behind the top panel buttons.

On the back of the G106, you’ll find a BNC antenna port, ground/earth lug, key port, COM port, 8 pin ACC port, and a DC input port.

The most conspicuous omission is a headphone or external speaker port. I would have expected this in a QRP field radio because operators often prefer using headphones in the field rather than a speaker. I know that some G106 owners have built their own RJ9 audio plug to port out the audio to headphones. There is a headphone port on the supplied speaker mic, but CW-only operators might prefer a more direct way to connect earphones in order to keep the bulk of their field kit to a minimum.

What is surprising is that the G106 has a very basic spectrum display that is actually quite useful!

Ergonomics

The ergonomics of the G106 are overall pretty good…but a bit quirky. To be honest, giving the user access to numerous functions and features on a radio this small is always going to affect ergonomics; there’s only so much control-surface real estate. Continue reading An in-depth review of the Xiegu G106 QRP HF transceiver →

Field Reports, Morse Code, News, Portable, POTA, QRP

Snagging a little POTA QRP DX with the Chelegance MC-750 and Xiegu G106

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Over the past couple of months, I’ve been trying to give the Xiegu G106 a thorough workout in the field. This little HF QRP radio is on loan to me from Radioddity who has very kindly been quite flexible about the loan period.

I want to give the G106 a fair shake-out because I believe it must be the least expensive multi-mode, full HF coverage transceiver on the market. Field ops are always looking for portable, affordable, effective radios to take to the field so many are considering the G106.

Of course, you simply can’t get benchmark performance out of a low-cost leader.

My full review of the Xiegu G106 will be in the May 2023 issue of The Spectrum Monitor magazine. It’s one of the longest reviews I’ve published in TSM because I try to fully explore the pros and cons of this pint size rig in order that pretty much anyone can make a purchase decision based on their own preferences and requirements.

POTA Plan B

On Saturday, March 18, 2023, I  decided to take the G106 out for a very brief activation during a return trip to my QTH.

My park of choice was Tuttle Educational State Forest (K-4861) because it’s conveniently located, is an excellent POTA site, and I wanted to fit in a quick hike as well. Tuttle’s two mile loop fit the bill perfectly.

When I arrived at the park entrance, however, the gates were closed. I had double checked Tuttle’s schedule in advance and was under the impression that they had started opening the park on Saturdays again for the season.

I really wanted to fit in a decent hike so the next logical park choice was Lake James State Park. It didn’t require a major detour and I was certain it would be open.

Lake James State Park (K-2739)

Lake James has two major access points: the Paddy’s Creek Access and Catawba River Access.

I prefer the Catawba River Access even though it’s much smaller than Paddy’s Creek. For one thing, it’s always less busy and they’ve better spots to set up for POTA (since I like hanging wires trees more often than not). Although the Catawba River access lacks the trail network found at Paddy’s Creek, they do have a few trails that can be stitched together for a nice workout.

Lake James State Park Map Catawba River Access

After arriving at the park, I put on my hiking boots and walked the Fox Den Loop and a bit of the Lake Channel Overlook.

I hiked back to my car, ate a bite of lunch, then grabbed my radio gear for some cheap POTA fun!

Higher Bands

The great thing about the G106 compared with some of my more affordable QRP radios (MTR-3B, SW-3B, R4020, TR-35, etc.) is that it’s not limited to CW and it covers all bands from 80 to 10 meters. Continue reading Snagging a little POTA QRP DX with the Chelegance MC-750 and Xiegu G106 →

Accessories, Field Reports, Kits, News, Portable, POTA, QRP, Videos

POTA at Fort Dobbs: Testing a BCI filter and depleting a battery!

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Friday, March 17, 2023 was a dreary, rainy day.

It was the sort of day made for reading a good book by the fireplace or…in my case…activating a park!

I don’t let rain stop me from playing radio in the field. I carry a rain fly in my car pretty much all of the time so if push comes to shove, I can create a dry space to play radio.

That said, a number of parks I frequent have large covered picnic shelters, so why not use what’s already there?

That particular Friday, I had one particular park and one particular goal in mind.

G106 + BCI Filter

As I mentioned in a post this weekend, I purchased and built a K9DP BCI Filter Kit.

If you’d like to see photos of the build, check out this post.

I built this BCI filter specifically to pair with the Xiegu G106 transceiver. Why? Because the G106 is prone to overload if you’re anywhere near an AM broadcaster.

The last time I visited Fort Dobbs State Historic Site (K-6839), a local AM broadcaster bled through the audio of the G106. I was able to complete the activation without any issues at all–in fact, it was a very successful activation (read the report here).

Still, I did feel that the receiver was a bit less sensitive due to the broadcaster overwhelming the front end of the radio.

That Friday, I wanted to pair my Xiegu G106 with the new in-line BCI filter to see if that might mitigate the interference I experienced before.

Fort Dobbs State Historic Site (K-6839)

After arriving at Fort Dobbs, and before taking my gear out of the car, I made my way to the park office (in the log cabin at the end of the sidewalk above) and asked for permission to use their picnic shelter. Continue reading POTA at Fort Dobbs: Testing a BCI filter and depleting a battery! →

Accessories, Articles, How To, Kits, New Products, News, QRP

Assembling a K9DP BCI Filter Kit (Photos)

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If you own a Xiegu G106, X6100, or any other radio that is prone to overloading when in the presence of an AM broadcaster, you should consider building an in-line BCI filter!

As many of you know, I’ve been testing the Xiegu G106 over the past couple of months for a review that will be published in the May 2023 issue of The Spectrum Monitor magazine.

One criticism of the G106 is that its front-end overloads when there’s an AM broadcaster within a few miles of where you choose to operate. The Xiegu X6100 is identical in this regard.

One quick way to remedy this is to build or buy a BCI filter. We’ve mentioned in the past how you can homebrew them and I planned to do so. After checking my parts drawer, though, I realized I needed to buy a capacitor, toroids and at least one of the two BNC connectors needed if I wanted an in-line filter in a small project box.

I decided it would be much easier to simply buy a kit and, based on a tip from a reader here on QRPer.com, I purchased one from Dan (K9DP). Continue reading Assembling a K9DP BCI Filter Kit (Photos) →