Category Archives: QRP Radios

Comparing the lab599 Discovery TX-500 and the Icom IC-705

By request, I’ve just posted another transceiver comparison video. This time, we take a look at the lab599 Discovery TX-500 and Icom IC-705 to determine which radio might better suit your needs.

As I mention in the video, I see these portable QRP radios as being in two different classes:

  • the TX-500 for operators who want the most rugged, efficient, and weather-resistant general coverage transceiver currently on the market and
  • the IC-705 for operators who want the most feature-packed high-performance portable transceiver on the market

Both radios are excellent options for hams who, like me, prefer playing radio outdoors.

Video

Click here to watch on YouTube.

What did I miss?

As I mentioned in the video, I knew I’d forget some important points while making the live recording. Here are some extra notes I wish I would have included:

SSB operation: Both radios have excellent features for the SSB operator including EQ settings for both transmit and receive which is a major plus for a QRP radio. I wouldn’t make a purchase decision based on SSB operation–both are excellent.

CW operation: CW operators will be pleased with both rigs. It’s important to note, though, that the TX-500 doesn’t have full break-in QSK like the IC-705. The TX-500 has at minimum a 100ms recovery time after keying a character. That’s a quick recovery, but not fast enough so that an operator can hear between characters formed; especially at high speeds. The IC-705 has full break-in QSK and it sounds great. Note that both the TX-500 and IC-705 use relays, not pin diode switching, so you can hear relays clicking inside the radio, but both are pretty quiet.

Protecting the IC-705: There are a number of IC-705 3rd party cages appearing on the market. These can be used to help protect the IC-705 in the field. Numerous readers and YouTube channel viewers have recommended the IC-705 Carry Cage by Peovi. From what I’ve seen, it looks to be the best of the bunch, but it doesn’t do a lot to protect the lower back portion of the radio–the part of the chassis that meets a surface. I feel like it’s not quite what I’d want, thus hard to justify $135 for it. Other aluminum and 3D printed cages seem to add too much bulk to the radio or obstruct some of the most common connection points on the sides (antenna, key, ATU control cable, speaker/mic, etc.).

TX-500 connectors and cables: The TX-500 uses GX12 mm connectors that are widely used in aviation, commercial and military applications. They’re easy to find online, but the price per each with shipping is typically around $7.00-8.00 US.  You get a better deal if you buy in bulk, but often bulk packages of 5 or more are of the same pin count/configuration. W2ENY has posted a number of accessory cables, spare connectors and even a military-style handset on his eBay store and website. The Icom IC-705 uses more standard 1/8″ and smaller two and three conductor plugs.

Receiver Performance: Based on Rob Sherwood’s receiver test data table, the IC-705 has a performance edge over the TX-500.  In the field, this difference is not noticeable. Indeed, both radios have very respectable numbers. If I had to choose one radio over the other if operating in a CW contest, for example, I’d give slight preference to the IC-705. I’ve used the TX-500 during a CW contest before, however, and found it did a brilliant job blocking tightly-spaced signals–click here to watch the short video.

Warranties: Both the Icom IC-705 and TX-500 come with a one year factory warranty. Click here for lab599 warranty service contacts and centers. Click here for Icom.

Feel free to comment if you have other specific points I might have forgotten.

Resources and links

Icom IC-705:

lab599 Discovery TX-500:

Feel free to comment and please let me know if there are other transceiver comparisons you’d like to see!

Comparing the lab599 Discovery TX-500 with the Elecraft KX2

Since I took delivery of my lab599 Discovery TX-500, one of the most asked questions I’ve received from readers of QRPer.com and my YouTube channel is:

Which should I buy, Thomas? The KX2 or TX-500–?

I’ve also been asked which radio is “better” and which one I’d purchase if I could only buy one.

To address these questions, I decided to make a YouTube video where I outline some of the pros and cons of both radios, and compare them in terms of features especially with regard to field use.

Video

Click here to watch my video on YouTube, or use the embedded player below:

In this video, I mention a number of external sites. I’ve included them in the video description, but I’ll also link to them below:

Feel free to comment if you have any specific questions and I’ll do my best to address them!

Discovery TX-500: Attempting a speedy POTA activation with a new rig and new antenna

While I love the opportunity to head outdoors and play radio, I also love shaking up my field kit and trying different combinations of radios, antennas, and other station accessories.

When using new-to-you gear, though, a best practice is to set everything up at home before you hit the field. This way, you can confirm that you have everything you need and you can also familiarize yourself with the gear prior to activating a park or summit.

Last Sunday (May 2, 2021), I threw caution to the wind. Well, sort of.  At the very last moment, I decided to squeeze in an activation en route to my sister’s home to do some brush-cutting and yard work.

The lab599 Discovery TX-500

Basically, I was chomping at the bit to take my lab599 Discovery TX-500 to field.

You see, in August 2020, I received an early pre-production TX-500 to evaluate for one week. In that seven day span, I activated seven parks with the TX-500 and enjoyed every minute of it. Because the loan period was limited, I packed a lot of TX-500 air time that week, then wrote this review for The Spectrum Monitor magazine.

As I mentioned in a previous post, if I would have had the opportunity to buy that loaner TX-500 last year, I would have. It wasn’t an option, though, as so few working models existed at the time. Now that I had a TX-500 in hand again, I couldn’t wait to hit the field with it.

Last Sunday, the weather was beautiful in western North Carolina, but clouds were moving in and we expected scattered showers in the latter part of the afternoon. The last thing I wanted to do was my sister’s yard work in the rain, so I needed to make the activation a speedy one.

But the TX-500 wasn’t the only piece of new gear. I also recently ordered and received a PackTenna 9:1 UNUN random wire antenna. I wanted to see how well it would perform, too, so I decided to pack my Elecraft T1 ATU and give it a go, too!

For the record: when you’re in a hurry, it’s not only a really bad idea to hit the field with a new radio and antenna, but to also throw the entire field kit together in 5 minutes before walking out the door.

On the drive to Lake James,  I mentally packed and re-packed the field kit trying to decide if I might have left out a crucial component (say, an adapter or cable). I also made the decision not to make a real-time, real-life video because 1.) this would surely  turn into a very clumsy deployment, 2.) I was pressed for time and didn’t want to set up the video, and 3.) I only had my iPhone with me to make the recording which would mean I would be giving up Internet and mobile phone access at the park which is important for spotting purposes.

So what did I do?

As I turned into the park entrance, I decided to make a recording of the entire activation from set up until the last logged contact.

Why would I do this to myself?

I reminded myself that the goal of my YouTube channel is simple: real-life, unedited examples of field radio operating. 

All of us, at some point, use new equipment in the field and we stumble through the process as we give the system a shake-out. So why not record it, right?

My iPhone battery had about 80% capacity. I knew if I tried to use the personal hotspot while recording the video–so that I could spot myself on the Microsoft Surface Go tablet–it would run down the battery in 20 minutes or so.  I immediately put my iPhone in airplane mode to preserve the battery.

Lake James State Park (K-2739)

I know this park quite well and assumed it would be busy on a beautiful Sunday afternoon. It was, in fact. I was confident I’d find a good operating spot, though, because they’ve a large picnic area and loads of tall trees to support wire antennas. And mid-afternoon, it was unlikely all of the picnic tables would be occupied.

Gear:

I found a nice spot to set up and deployed the PackTenna in short order.

Since my iPhone was doing video duty, I didn’t take extra photos.

I hooked up the Elecraft T1 and attempted to find a match on 40 meters.  I thought I did find a match at first, but it turns out that the T1 was in Bypass mode. I didn’t have my reading glasses handy, so thought I saw a great match on the TX-500’s display. Turns out it was floating around 2:1. Still: not a bad match.

I worked five stations, then moved to the 30 meter band. It was then I finally realized the T1 was in bypass mode. I found my spectacles, read the front panel of the T1 and remedied that in short order (I can never remember the button press combo to toggle bypass mode!).

I tuned 30 meters and got a great match.

On 30 meters, I worked two stations.

I then moved up to 20 meters where I worked two more.

Then I moved back down to 40 meters where I topped off the activation with an additional three contacts for a total of 12 as I called QRT.

I’m very grateful to my buddy Scott (KN3A) who worked me on three bands all while he was activating a park in Pennsylvania! Thanks for those P2Ps, Scott!

In fact, I’m grateful Scott took the time to work me on multiple bands because it help bring my numbers above the 10 stations needed for a valid POTA activation.

Video

QSOmap

After going QRT, I quickly packed up my gear (which was easy because there were so few parts), and started the 45 minute drive to my sister’s house. Fortunately, the rain held off the whole time I did the yard work!

I’m so happy to have a TX-500 back in the field radio arsenal.

Shortly after this activation, I officially purchased this loaner TX-500 unit from lab599. As I said in my “unboxing” video, there was no way I was sending this unit back. 🙂 Now I won’t feel bad if it gets dinged or scratched!

I’m sure the TX-500 will be in heavy rotation for a while. Please comment if you have any questions about this radio or the 9:1 UNUN PackTenna. I’d be happy to answer your questions!


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Return of the lab599 Discovery TX-500!

Last year, I was lucky enough to obtain a lab599 Discovery TX-500 QRP transceiver for review on the SWLing Post.

It was a bittersweet experience because 1.) I really liked this transceiver, and 2.) I could only keep it for one week!

One week?!? (Now I can’t get this BNL song out of my head.)

Typically when I receive a loaner transceiver for review, I like to keep it a minimum of 4 weeks, but actually ask for up to 6 or 8 weeks. I like spending quite a lot of time with a new transceiver so I have an opportunity, for example, to take it on multiple field trips, pair it with a wide variety of antennas, and also using it in the shack.

My time was limited with the TX-500 last year because I had one of only a handful of pre-production units in the US (one was being used for FCC testing). Josh, from Ham Radio Crash Course, sent me the TX-500 after he spent a week with it, and I sent it Ham Radio Outlet where it would be eventually used as a demo unit.

When I took delivery of that TX-500 in late August 2020, I immediately hit the field. In one week, I performed seven park activations and also spent a great deal of time with the TX-500 in the shack.

For more details, click here to read my full review of the TX-500 on the SWLing Post.

In short, I really like the TX-500 as a field radio. Sadly, however, I didn’t have an option to purchase one anytime soon. There was already a massive backlog or orders at Ham Radio Outlet and lab599, like other manufacturers last year, experienced production delays due to Covid-19.

Last autumn, I asked lab599 if they would consider sending me another TX-500 on extended loan when they had a unit available.

Yesterday, I took delivery of a new TX-500!

Of course, I’ll be taking this unit to the field ASAP and plan to make a number of videos readers have requested comparing the TX-500 to the KX2, KX3, FT-818, and IC-705.

Although I’m not a fan of “unboxing videos,” I did make one of the TX-500 yesterday only moments after I took delivery. Why? Frankly, because I believe the box design itself speaks to lab599’s attention to detail.

I’ll admit right up-front that this video is a bit of an unrehearsed stream of consciousness ramble as I tried to share some of my thoughts about the TX-500. You’ve been warned:

Again, I’m looking forward to taking this weatherproof rig to summits and parks soon, so expect some field reports and videos featuring the TX-500.

In the meantime, please let me know if you have a TX-500 and consider sharing your thoughts and comments!

Which should you buy? The Icom IC-705 or the Elecraft KX2?

Without a doubt, the most popular type of question I receive from readers here on QPRer.com and over at the SWLing Post has to do with making equipment purchase decisions.

In the past two months, I’ve had numerous questions from QRPer readers asking my opinion about choosing between the new Icom IC-705, or the Elecraft KX2. In fact, as I started putting this post together this morning, I received yet another email from a reader asking my opinion about these two iconic QRP transceivers!

I love both of these radios for different reasons, so the answer is not an easy one.

Let’s discuss this in some detail…

I decided to make a video talking about the pros and cons of each transceiver and note the reasons why one might pick one over the other. My hope is that this will help inform a purchase decision:

Click here to view on YouTube.

Do you own both of these radios? Or did you recently decide to purchase one instead of the other? Please comment with your thoughts and opinions!

Why did I replace my KX2 aluminum encoder knob with the stock plastic one?

Many thanks to Nick (KC0MYW) who writes:

I notice that you put the stock knob back on your KX-2 instead of the aluminum one you sang the praises of here:

https://swling.com/blog/2018/01/a-25-upgrade-for-the-elecraft-kx2/

I’d be interested in your thoughts/views/opinion/reasoning for that. I am hoping to get a KX-2 soon and was planning to get the aluminum knob that you recommended.

Excellent question. I did, indeed, swap out the nicer aluminum knob with the stock lightweight knob. I meant to write a quick note about that last year.

I did this after watching a presentation by Wayne Burdick (N6KR) for the QSO Today Expo last year.

Here’s the video queued up to the spot where Wayne mentions why he doesn’t recommend anything other than the stock plastic encoder:

In the video, I believe he’s really referring to heavier encoders rather than the lightweight aluminum one, but I still pulled it thinking I was perfectly happy with the plastic one and would accept the compromise. Anything to extend the longevity of my KX2.

The video is a fascinating look at how the KX2 was designed and developed. I would encourage you to watch the entire video when you have the time.

Activating Elk Knob State Park for SOTA, POTA, and WWFF

On Monday, March 8, 2021, I had a very rare opportunity: nearly a full day to play radio!

I debated where to go the night before and I had a lot of ideas. Do a multi-park run?  Activate some new-to-me parks a little further afield? Hit a SOTA summit?

While it was very appealing to plan a multi-park run for POTA/WWFF, I really wanted to stretch my legs and activate a summit. The weather was glorious and it dawned upon me that we’ll soon be entering the season of afternoon thunderstorms which will, no doubt, have a negative impact on my summit plans for the next few months since afternoons are typically when I have time to do activations.

After examining the map, I decided to go to Elk Knob State Park. The summit of Elk Knob is a SOTA site and the park is in both the POTA and WWFF programs.

Last year, I activated Elk Knob State Park and really enjoyed the experience.

The round trip hike to the summit (adding in a little trail loop around the park) would amount to about 4 total miles and an elevation increase of roughly 1,000 feet.

Monday morning, I left the QTH around 9:00 and arrived at the park around 11:15–it was a proper scenic drive.

The 1.9 mile hike to the summit took me about 45 minutes. The path was amazingly well maintained: 4′ wide with crushed stone most of the way.

One of the nicest trails I’ve been on in ages–Elk Knob State Park is quickly becoming one of my favorite NC State Parks.

There aren’t any antenna-friendly trees on the summit, so I was happy that I packed the Chameleon MPAS 2.0.

At first, I planned to only bring the top section of the MPAS 2.0 vertical to save space, but the hike was so short, I brought the lower aluminum sections as well. I’m glad I did.

Deployment of the MPAS 2.0 was quick and I the Elecraft KX2‘s internal ATU found a match on 20 meters very quickly.

Elk Knob (W4C/EM-005)

I spotted myself using the SOTA Goat app and received quite a 20 meter CW pileup! As you’ll see in my video below, it was testing the limits of my CW skills for sure.

With 5 watts, I quickly worked stations to my east in France, Spain, and Germany, and to my west all over the west coast of North America. It was a hoot!

I eventually moved to 40 meters and operated a bit, but 40 was suffering from poor propagation so stations that are normally quite strong, were weak that day.

I needed four stations for a valid SOTA activation and 10 stations for a valid park activation. I logged a total of 38 stations in 56 minutes. 75% of those contacts were on 20 meters.

Video

Here’s one of my real-time, real-life videos of the entire activation (less a small amount I removed while eating a quick bite):

When people tell me running QRP is like “trying to play radio with both hands tied behind your back” I’ll show them this video. 🙂

AGN?

While the hike, the weather, and the signals were all in my favor, I’ll admit I wasn’t on my “A Game” that day. We all have days like this where we struggle to copy, to keep up with the flow of contacts, and to send correctly.

In recent weeks, I’ve gotten a number of emails from readers and viewers who said they had a less-than-smooth SOTA or POTA activation and felt a wee bit embarrassed on the air when they struggled copying.

But you know what?

No worries!!!

This is all about having radio fun in the field, enjoying a hike, taking in the views, and soaking up the beautiful weather! It’s not a contest and we have nothing to prove to anyone.

I can also promise you that any chaser/hunter who has ever activated a field site will completely understand if they have to send their call a couple extra times or if they (heaven forbid!) have to re-send their call after you incorrectly copy a character.

This is totally normal.

Be easy on yourself and enjoy the ride. Even on days when I don’t feel like I’m 100% in the groove, I find doing a summit or park activation clears my mind and resets my soul.

My policy? When a mistake is made laugh it off and move on!

Photos

Here are a few extra photos from the Elk Knob hike:


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Frank builds the EGV+ Three Band QRP CW Transceiver Kit

Many thanks to Frank Lagaet (ON6UU) for sharing the following guest post:


The EGV+ Three Band Transceiver Kit

by Frank Lagaet (ON6UU)

Another EA3GCY kit has seen daylight.  The EGV+ is ready for you all.

It was beginning 2021 I got word a new kit from EA3GCY was ready and distribution could start.  After a successful build of the DB4020 I did not need much time to decide to buy this kit,  a week later the kit arrived at my QTH.  As weather was good I did not start immediately building but then winter kicked in, with snowfall and frost,  perfect time for some quality time and building the kit.

What do you get ? 

The kit has a general coverage receiver from 6 to 16MHz,  it has a keyer built in,  has RIT without limit,  requires only 0.25A on RX and smaller than 2A on TX.  Dimensions are 18x14cm and weight is 0.3Kg.   It is CW only, able to produce 8W on 40 and some 5-6 on 30 and 20.  The kit has an AB class amplifier.   Spurious is below -50DBc.  The receiver is a heterodyne type balanced mixer,  sensitivity is 0.2µV minimum and the CW filter is some 700Hz wide,  the AGC is on audio.   Furthermore the transceiver is equipped with both output for loudspeaker as for a headset or earbuds.

The kit arrived in a brown envelope and in that envelope I found a well-packed packet of plastic bags and the printed board well packed in bubble wrap.  Around that another layer of bubblewrap.  Safe!!

All plastic bags were checked,  all needed stuff was there, super,  well done Javier.

All components were installed in about 10 hours “relax max style”,  if you have built some kits already you can easily do this one,  all elements are far enough out of each other,  the board is not overcrowded at all.  Some attention is needed when soldering the IC’s and display but even that is a piece of cake.   Be careful when installing the SI5351 module.

Winding the toroids,  just follow what is in the manual,  it is not that hard to do,  I don’t understand what many find so difficult.  Just take your time and don’t rush into it.

I got the transceiver up and running quite quick. I didn’t install a speaker in the cabinet but decided to go for a transceiver where no speaker is in. If I want to use it on SOTA or GMA I don’t need the extra weight and can take earbuds with me.  So I installed the speaker connector on the board.

I made connections towards the CW key and CMD push button with jumper cables which fit exactly on the headers Javier supplies,  a little glue to keep them in place is also added afterward.  For easy operation I mounted the CW key connector and CMD pushbutton on the front of the transceiver.

Do to be able to withstand high power nearby stations,  I mounted the EGV+ in a homemade box which is made of printboard.  The box should be a Faraday cage to keep all QRM out.  If you buy a box, buy one in metal.  I added a laminated front and back which make the transceiver look kinda cool.   Now you can also buy a box from qrphamradiokits.

Alignment

The alignment is done on 40 meters:  crank up the volume and start turning the 2 coils (L1 and L2)to maximum volume.  Be careful to handle these with caution and don’t use metallic screwdrivers.  Connect an antenna after you’ve done that and do the alignment of the coils again for maximum volume.  Find a station on 40 and redo the alignment once more.  You should already have good results now.

P1 Set sidetone level to your liking.

P2 Set the hangtime of the relay after you’ve been on air–fast fingers will need a quick release. Set this to your liking.

P3 Connect a power meter between a dummy load and the transceiver,  set power on 40 to some 8 Watts.   Measure on 30 and 20 meters,  you should find some 6-7W there.  Don’t set the power to full if you want a long life for the final in the transceiver.  Mine is set for 6W on 20,  resulting in some 7.5W on 30 and some 8.4W on 40.  I think I will reduce even more.

P4 Set to max,  it is the RX-attenuator.

P5 Don’t pay too much attention to the signal meter,  mine is set at 6/8 of the potmeter’s range.  It is only an indication.  If you don’t want the S-meter then you can do a start-up sequence with the tuning knob.

These are in fact the alignments you need to do inside the transceiver.  You should also check Xtal calibration and BFO,  these are settings which you need to do in the set-up.  Don’t forget to write all down when you have maximised these settings. If you do a reset, all these values are erased too so be carefull.

The complete CW 3 bander

Well,  you get a 3 band transceiver which you build yourself,  it has RIT and XIT,  has 4 memories on the KB-2 keyer,  speed of CW can be set between 0 and 50WPM and you can set the KB-2 as a beacon which can be handy too.   The EGV+ provides you with 3 bands which are almost for certain insurance for QSOs when going on SOTA,  GMA or POTA.

You may have noticed some resemblance with the DB4020. You are right as some parts are the same on the board.   The designer worked on the same platform to make two completely different transceivers.  The result is twice the fun for kit builders.

I made a box myself since, at the time of ordering, there were no boxes available,  here’s the result.

The naked printboard transceiver.

After adding a laminated front to the trx,  it looks now like this.  You can see it is not made professionally but I like it.

The paper which is between the plastic was first cut out for the display before placing it in the plastics so giving an extra protection to the display.

I have also made a retractable stand for it,  when folded back it is next to the bottom of the transceiver,  when folded out the stand is under the front of the transceiver,  the retractable stand is also made out of printboard.

It’s an easy-to-make stand–take some old printboard and solder it together.   The pictures explain it all, I think.

Meanwhile, I already made a lot of QSOs with this small (16 X 20 X 6 cm) QRP transceiver.   The power out is better than expected and even reduced so all bands are within QRP regulations.

Finally, I’d like to say that I’m not sponsored to make this kit,  I don’t have any ties with the kit producer, nor do I gain money with building it.   If people would like to have this QRP kit built for them I’m willing to help out in populating the board and aligning it.  A ready made box is available with qrphamradiokits.   This also stands for the DB4020 which I made earlier.

The kit comes for 125€ without shipping costs.  Many European countries will have no shipping costs at all.  The enclosure comes for 50€ all included. This means you have a complete 3 band radio for about 200€.  In my eyes, this is a pretty good deal.

Info about the kit can be found here :   Home – Página web de ea3gcy (qrphamradiokits.com)

And here : EGV+ Three band CW – Página web de ea3gcy (qrphamradiokits.com)

My review of the Icom IC-705 QRP transceiver

I recently published my full review of the Icom IC-705 over at the SWLing Post. If you’ve been following QRPer for long, you’ve likely seen this little radio in action.

If you’d like to read the full review, which was originally posted in the February 2021 issue of The Spectrum Monitor magazine, click on this link to visit the SWLing Post.

Why I sold my Xiegu G90

Many thanks to Brain who asks:

“Thomas, I read your review of the Xiegu G90 transceiver on the SWLing Post and it seemed your overall impression was positive. I bought a G90 some time ago and love it. So far, I’ve only been listening with it, but hope to pass both my Technician and General class license exams this month. Curious why you stated that you sold it after your review. Could you shed a little light on that decision? Inquiring mind here. Thanks so much for your articles and videos.”

Good question, Brian! And bravo on tackling both your Tech and General class license exams in one go! We’re rooting for you!

The short answer is it had more to do with my own personal preferences than the radio’s performance and specifications.

As I stated in my review, I think the G90 is a great value and certainly a capable field radio. It must be one of the most popular portable transceivers in the Parks On The Air (POTA) program (along with the Yaesu FT-891) which is certainly worth noting.

You would be hard-pressed to find a transceiver with the features of the G90–including an excellent internal ATU and 20 watts output–for less than $600 and the G90 is currently only $425 US.

If you have a limited budget, and like the overall specs and features of the G90, you really can’t go wrong.

Personal preferences

When I review a product, I do my best not to allow my own personal preferences to cloud my judgement. I try to imagine how I’d review a piece of gear based on being in a number of other operators’ shoes.

One of my pet peeves, in fact, is to read a product review and find that the reviewer is indulging in nit-picking and hyper-focusing on particular characteristics, features, and design shortcomings. I want to hear the negatives for sure, but I also want to feel comfortable that the reviewer’s personal preferences didn’t cloud their overall objectivity.

I also value real-word, hands-on experience in a product review.

After purchasing the Xiegu G90, I took it to the field and made a number of POTA activations with it. It never disappointed. I also used it in the shack for a couple of months. I found that the display was quite useful, easy to read, and it had most of the functions and features I tend to use in the field. Never once did I feel it was under-performing or not meeting my expectations. If anything, the G90 exceeded my expectations.

In fact, I remember telling some of my friends that the G90 was a “keeper” after taking it on a few field outings. But after my review, I found that I rarely reached for it when heading to the field. Why? Turns out some of my own personal preferences surfaced:

Memory Keying

Most of my other QRP transceivers have CW memory keying and/or voice memory keying. The Xiegu G90 does not.

For POTA and SOTA activators, voice and CW memory keying is a useful feature, as it frees you to do other things like log, eat a sandwich, or talk to others while calling CQ. In other words, it can help with your “work flow.” If you’ve watched my activation videos, you might have noticed that I tend to use memory keying for calling CQ and, sometimes, for sending 73s.

When walking out the door to hit the field, I tend to grab my transceivers that have memory keying functions.

Audio

The G90 has an excellent internal speaker for use in the field. With that said–and this is hard to describe–I find its overall audio characteristics a little “harsh” and unrefined. I found that, over time, the G90 gave me a bit of listener fatigue during long sessions in the field or shack. That’s not to say it has bad audio–it’s just not as good as some of my other transceivers.

Key clicks

ARRL lab testing shows that the G90 has key clicks in transmit. In fact, the key clicks were bad enough in their testing that they suggested never using the G90 with an external amplifier.  For those of us who don’t use amplifiers, this may never be a factor at all. Also, Xiegu retailers sell affordable external amplifiers to pair with the G90, so I must assume it doesn’t affect all amplifiers negatively. If I’m being honest with myself, I think this was another nail in the coffin.

In summary…

I knew the G90 would collect dust, so I sold it.

However, I know operators who love the G90 so much, they sold their pricier rigs after buying a G90. I even know operators who own two G90s: one for the shack, one for the field. With a total investment of only $850, I see why they made that choice.

The G90 just wasn’t for me though.

A final note about the new Xiegu GSOC

Ironically, I was asked by Radioddity to evaluate the new Xiegu GSOC controller only a couple weeks after I sold my original G90. Since the GSOC is designed to pair with the G90 , they had to send me another G90 on loan for the evaluation.

If you have a G90 and have considered purchasing the GSOC, I would strongly urge you to read my latest review of the GSOC.

In short: I can’t recommend it. The G90 is a much better radio without the GSOC controller, in my opinion.

Do you own the G90?

Have you even owned or operated the Xiegu G90? What do you consider to be its pros and cons? Please comment!