Category Archives: News

News, QRP Radios, Reviews

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

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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!

Grab And Go, News, Portable, POTA, QRP, SOTA

Organizing and packing field radio accessories–three products I love!

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As I was packing up my radio gear at the last activation I posted (click here for that field report), I paused to make a quick video and talk about my rucksack, my accessories pouches, and a winder I like to use with the MFJ-1984LP antenna.

Here are the products I mentioned:

GoRuck GR1 USA

This is one of my favorite rucksacks for SOTA activations. I like the fact that it’s low-profile, structured, and feels great on the back even during extended hiking sessions.

It’s also insanely rugged, weatherproof, and (frankly) over-engineered.

My GR1 was made in the USA by GoRuck. This company specializes in packs that are essentially designed to be used and abused.  They’re all backed by a lifetime warranty. You pay for this kind of quality, though.

I purchased mine perhaps 3 years ago during a closeout sale on this particular color variant. When combined with my educator’s discount I think I paid around $210-220 US for it.

I originally bought it because I’m a huge fan of one-bag travel (read an article where I mention this on the SWLing Post). I discovered that the GR1 meets most airline regulations as a “personal carry on.” This means even with discount airlines and regional “puddle jumper” aircraft, I know I can always take it on board and never need to check it. I can easily travel one or two weeks out of this pack.

The TX-500, clipboard, and my logging pads all tuck away nicely in the GR1’s slip-in rucking plate pocket.

But in the field, the GR1 has the perfect amount of capacity for any of my QRP transceivers along with antennas, ATU, cables, and other accessories.

Click here to check out this pack at GoRuck.

Large Tom Bihn Travel Tray

Being a one-bag traveller (and certified pack geek) I’m also a massive fan of US pack designer and manufacturer, Tom Bihn.

I have a number of their packs, pouches, and organizers.

Without a doubt, one of my favorite TB items is the Travel Tray. It’s a brilliant concept: take this with you on a trip, open it up as a tray in your hotel room, and place all of your valuables in it. By doing this, you don’t have to search your room for your watch, keys, wallet, glasses, phone, etc. When you leave the room, all of those easy-to-lose items will be in one place. If you’re in a rush to catch a flight, grab the whole pack by the drawstring, secure it, and throw it in your carry on! It’s a simple, genius little sack/tray!

I also use these to organize radio accessories in my field pack. For example, I have one now dedicated to the TX-500. In the Travel Tray, I store all of the TX-500 adapters and cords, the speaker mic, a set of CW Morse Pocket paddles, a PackTenna EFHW, some RG-316, and a 3 aH LiFePo4 battery. I even carry a spare Muji notepad in it in case I forget my logging pad. With this little bag and the TX-500, I have everything I need to hit the air!

Note that I much prefer the large TB Travel Tray. My wife has both a large and small travel tray, but I find that the small one is just a little too small for most everything I wish to put in it. The large one’s outer diameter is large enough that you can also store a short coil of RG-58 coaxial cable/feed line in it.

Click here to check out large Travel Trays at Tom Bihn.

I love these so much, I purchased two more this week: one in black and one in coyote.

Thingiverse Wire Winder

This particular winder is red because that’s the filament my daughters had loaded in the printer at the time!

Before we purchased a 3D printer (an Ender 3 Pro) I would make wire winders out of anything I could find.  With a 3D printer, however, it’s so easy to make a winder sized perfectly for your application.

You may have seen winders in various colors in my video field reports–they all come from a simple project file on Thingiverse.

This winder is super easy to print and to enlarge or shrink. If you don’t have a 3D printer, likely someone you know does! Ask them to print this for you. They’re incredible useful.

Click here to view on Thingiverse.

Video

I made a very short video talking about all of these products post-activation:

Click here to view on YouTube.

Field Reports, News, Portable, POTA, QRP

The Blue Ridge Parkway and some POTA with the TX-500 and MFJ-1984LP EFHW

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The Blue Ridge Parkway is a massive national park.

This stretch of scenic road spans 469 miles (755 km) from North Carolina into Virginia and crossing 29 counties along the way.

I could activate the BRP every day for the rest of my life and find a new activation spot every single day.

But at the end of the day, I return to reliable spots that I love in particular because of the solitude, the access to trails, and of course the trees.

There are trees along the parkway I know so well, I should name them. They’re always there when I’m ready to deploy a wire antenna.

On Wednesday, May 5, 2021, I visited one of my favorite BRP activations sites that I used during the year-long National Parks On The Air (NPOTA) program in 2016.

This particular site is simply a small hill on the side of the road and at the top, there some excellent trees. There’s also a short path leading to the for the Mountains To Sea trail.

This particular spot also overlooks a valley and has a wee bit of altitude. I’m not sure how meaningful that is for an HF op, but it always seems to help.

Blue Ridge Parkway, NC (K-3378)

Of course, since the lab599 Discovery TX-500 was still so new to me, it had to come out to play.

I decided to skip using an ATU, keep things simple, and pair the TX-500 with my MFJ-1984LP EFHW (above).

Gear:

 

I started on 40 meters where I very quickly snagged my good friend, Eric (WD8RIF) who most likely saw my callsign on the RBN and kindly took a break from work to hop on the air work me 5 watts both ways. I’m willing to bet Eric was even a bit envious and wished he could have been outdoors putting parks on the air that morning. It’s fair play, though, because he’s often out doing multi-park runs while I’m working from home.

We must live vicariously through each other, right? Right.

Where was I?

Oh yes, the contacts started rolling in on 40 meters.

I worked K4NAN, KD8IE, K8RAT, N4EX, NE4TN, N9UNX, KB4PY, KC5F, KN3A, and NS4J on 40 meters in the span of about eleven minutes. I really enjoy that kind of cadence.

Next, I moved to 20 meters knowing it might not be an ideal band. I called CQ for nearly 10 minutes, then logged N6GR in New Mexico.

This activation reminded me that POTA often feels like a little impromptu family reunion as so many of the ops I logged that day were POTA friends and also enthusiastic activators.

I decided that 12 logged was a great number, so I called QRT and packed up. I most enjoyable activation!

The TX-500, clipboard, and my logging pads all tuck away nicely in the GR1’s slip-in rucking plate pocket.

Video

Of course, I recorded one of my real-life, real-time activation videos. Hazel and some very irritating flora are also featured.

Click here to view on YouTube.

Here’s a QSO Map of the activation as well:

I remember during National Parks On The Air, a hunter who worked me daily asked, “Do you ever get tired of activating the Blue Ridge Parkway?”

I told him that the BRP is so large, so diverse, and so beautiful, there’s simply no way I could ever get tired of it.

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Grab And Go, Guest Posts, Hams, Homebrew, How To, News

Guest Post: Creating pick and pluck inserts for radio cases

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Many thanks to Mark Hirst, who shares the following guest post:

Pick and Pluck Foam

The old adage of ‘measure twice and cut once’ is very apt when using pick and pluck foam. The inserts are not cheap and mistakes are hard to rectify.

Whether you are preparing a large case with several items in a shared insert, or focussing around a single item, planning the layout is key.

Item weight is also a factor to consider, as this will affect decisions on wall thickness between items and the case.

Finally, how hostile is the environment likely to be? Is the case going in your backpack or car where you’re in careful control, or is going to be subject to careless handling by others?

Planning the layout

Once you’ve settled on a case size and how much padding you need, a non-destructive way of planning the layout is to use cocktail sticks.

These can be inserted into the corners of the foam segments to trace the outline of the radio and any items such as controls and ports that may extend from the body.

Since the size of the segments is in fixed increments, matching the exact dimensions of the radio is down to pure luck. I would go for a slight squeeze on the radio body if feasible to make sure it’s always in contact with the foam, but give some breathing room around the controls and ports.

The example below is a case I use for backpack transport. It has rather thin but adequate side walls for that purpose. I prioritised wall thickness facing the front and back of the radio, and also on the side opposite the carry handle. Note how the foam comes right up against the body of the radio, but leaves the front controls with some clearance.

Outlining using cocktail sticks

This has the benefit of keeping any sudden shocks away from the controls, and also reduces the number of places where foam is subject to tearing and compression when the radio is inserted and removed.

The completed insert

Separating the foam

The best place to start is along the planned route of a long side wall. Use your thumbs to separate the surface of two segments on one side from two segments on the other.

Once the surface tear has got going, you should be able push a finger down between the four segments, extending the tear till it reaches the bottom of the foam. At this point, you have a cut all the way through.

Separating the foam

Now you can peel the foam apart at the upper surface in each direction, using your forefinger to again push down between the segments to complete the separation down to the lower surface.

Work carefully around the cutouts and protrusions accommodating the controls. The protrusions are potential weak points at this stage, so be sure to proceed slowly.

If you need to practice, you can always start by separating segments deep within the section that will be removed till you get the hang of it.

Reinforcement

While pick and pluck means you don’t need special tools or templates to cut the foam, the remaining material in your insert is inherently weaker than a solid structure.

The solution I’ve used is to fill the residual cuts with a solvent free adhesive. Solvent free adhesives are often aimed at children for safety reasons, and while there are solvent based adhesives for foam, the one I used dries clear with a resilient flexible bond that is stronger than the foam itself.

I run a finger gently along the exposed walls, edges, and around the protrusions. This makes the potential weak points and stress areas immediately apparent as segments naturally separate along the pick and pluck cuts.

Armed with a tube of adhesive and a finger (usually a thumb), you can gently open the weak point and then run the nozzle of the tube down the cut, dispensing generous amounts of adhesive as you go. The two sections of foam close up as the nozzle passes by, with the adhesive soaking into both sides. As long as you don’t go overboard, the adhesive will stay within the join and you won’t have to wipe away any excess.

Reinforcing corners

Side walls are not subject to the same stress as protrusions, but you will probably still spot sections with deeper cuts that need attention, and you will definitely want to reinforce the corners.

Reinforcing sidewalls

I’ve allowed at least a day to be sure the adhesive has set. It’s worth going over the insert again to see if you missed anything the first time round.

The Adhesive

The Bostik solvent free adhesive resembles runny white toothpaste when dispensed from the tube, but dries clear when set.

Inevitably, when I tried to find more of it recently, I discovered that the easily recognisable colour and branding had made way to a confusingly generic scheme shared across a variety of different adhesive types from the manufacturer.

I found this old listing for Bostik 80518 on Amazon UK, and another here on Amazon US. Based on the product number, a modern equivalent seems to be here.

I’m sure there’s nothing unique about this particular product, other than I’ve found it to be foam friendly over the years. Aside from being solvent free, its ability to seep into the foam is a key asset.

Since the first step of creating an insert leaves you with a potentially discardable piece of foam anyway, you have plenty of raw material to experiment with if in doubt.

Additional Reinforcement

Even if you have been generous with the side walls of your foam insert, a heavy radio might demand some additional work to ensure the longevity of the foam.

While the example case shown above worked OK to start with, I noticed that the floor of the case and the side wall facing the back of the radio were taking a beating.

The problem was caused by the feet of the radio, cooling fins, power and antenna connectors. During transport, these were pushing into the foam with the full weight of the radio behind them. Subject to such concentrated point forces, I could see that the foam wasn’t going to last.

Using very thin and very cheap flexible plastic cutting boards from my local food market, I cut out panels which spread the point compression across a much wider area.

Additional Reinforcement

Now when I put the case into a backpack, I ensure that the radio is sitting on its tail with the cooling fins against the rear panel.

Conclusion

While it’s possible to create ad-hoc transport solutions for radios, there’s nothing quite as satisfying as a sturdy padded case that is made to measure. The cases are forever, but the foam needs care and attention, so I hope these tips help you build a lasting solution for safely transporting your pride and joy.

Oh wow! Thank you so much for this timely post and for helping me as I kit-out a Pelican case for my Icom IC-705.

Readers, click here to check out Mark’s previous post about the case he uses for his Yaesu FT-891.

Thanks again for sharing your best practices, Mark!

News, QRO, QRP

New UK RF Exposure regulations effective today

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Many thanks to Paul (VP9KF) who shares:

The new RF Exposure regulations for the UK (only) have been brought into force on time, today 2021-05-18. Compliance dates for the new regs vary from service to service. For the full details try going to my RF Exposure Help page (UK version):

http://hintlink.com/power_density_help_uk.htm

which contains links to Ofcom and the RSGB, the timeline and how to install LibreOffice in order to run the spreadsheets provided by Ofcom and the RSGB.

The spreadsheets are currently at v0.1.2. When they expect to be at full release (v1.0) is unknown.

Remember, the new regs apply to all installations which exceed 10 W EIRP, including mobile/portable. Other help pages exist for the USA (FCC) and EU (a sub-set of the 27 States) which follow the new FCC regs [already in place] and the speculation that the EU regs will change from existing ICNIRP 1998 to ICNIRP 2020 guidelines.

Paul, VP9KF

Thank you for sharing this, Paul!

Field Reports, News, Portable, POTA, QRP

A windy, creekside QRP activation of Pisgah National Forest and Pisgah Game Land

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Lately, I’ve had quite the backlog of reviews and evaluations building up. Family life has been active–and it always comes first–but also I’ve a number of projects on the table (two kit builds, one repair, two antenna projects), four articles for various publications, two new transceivers (the TX-500 and now an X5105 on loan), and a number of family business projects. ‘Tis the season, I reckon.

Normally, I’d be in Dayton, Ohio right now enjoying a weekend of fellowship and Hamvention/FDIM insanity, but all that was cancelled this year due to the pandemic.

I’ve had a number of projects that sort of force me indoors, but I haven’t felt like doing them. Spring in the mountains of western North Carolina is truly a thing to enjoy (save the allergies)–and it’s an incredible distraction.

On Saturday afternoon, May 8, 2021, my whole family wanted a little outdoor  distraction time, so we hopped in the car and drove to a nearby spot in Pisgah National Forest.

The drive takes nearly 50 minutes even though the actual site isn’t even 5 miles from the QTH as the crow flies. The weather was beautiful, but a front was moving through bringing strong wind gusts.

I had planned to set up my activation next to our  car along the forest service road, but to shelter myself from some of the winds, I decided instead to set up next to the nearby creek, down the hill a bit.

This particular site is actually located in both Pisgah National Forest and Pisgah Game Land–they overlap, which makes this a Parks On The Air “Two-Fer”.

Equipment

While setting up next to a creek makes for a beautiful little activation spot, it also adds a lot of extra background noise. Normally, I would have used some in-ear earphones with the TX-500 for sound isolation, but (after twenty minutes on the air and against my better judgement) I decided to make an activation video at this site, so used the speaker/mic instead.

I’ve activated this site numerous times in the past and while it has tall trees and loads of spots to set up, it’s also in a pretty deep ravine, surrounded by tall ridge lines.  While this is less a problem with HF as it would certainly be for line-of-site frequencies, history has proven that it makes for a challenging activation.

I deployed my new PackTenna 9:1 UNUN random wire antenna as a vertical. I’m glad I chose the PackTenna because it’s such a low-profile antenna, I knew it would be less affected by the strong wind gusts.

I also decided to employ my Emtech ZM-2 manual antenna tuner during this activation. Why? Because I had never used it with the PackTenna before. So why not?

On The Air

I hopped on 40 meters and started calling CQ. Thankfully, the Reverse Beacon Network found me and the POTA website automatically created a spot from the RBN information.

I worked four stations in four minutes! This was a much better start than I’d ever had at this site before.

Then, nothing…

About 20 minutes passed as I called CQ on 40 meters. This was going to be a challenging activation after all.

I decided to move up to the 30 meter band. I thought there might be some value in showing how to tune the ZM-2, so I started recording one of my real-time, real-life activation videos knowing that the audio might not be ideal with the rushing creek.

On 30 meters, I was able to pick up three more contacts in fairly short order, giving me a total of seven contacts. Only three more needed to validate my activation!

At least 20 minutes had passed since I was on 40 meters, so I decided to hop back down there hoping some new hunters might be monitoring the POTA spots.

Sure enough, I was able to add five more contacts in ten minutes!

My 12th contact is on the back of this log sheet: KF4YEY in FL.

I likely spent a total of one hour on the air. By the time it was over, my wife and daughters were ready to hit the road again: temps had dropped pretty quickly in that one hour time frame and the gusts were strong enough my wife was concerned it could knock some branches loose. (I was less concerned because I always check a site for widow-makers and power lines before setting up.

Video

Here’s my real-time, real-life activation video starting about 20 minutes into the activation:

With such a simple radio kit, packing up was very quick.

This was my second activation with the new TX-500. I really do love this radio.

A number of folks noted in my last TX-500 video that there was an audio pop present as I keyed the radio either with my paddles or with the built-in memory keyer. I had never noticed this before, but I think I know why it’s happening. In my videos, I crank the speaker/mic volume up all the way so the audio can be heard. When I do this, the T/R relay audio pop/recovery is quite noticeable.

I think I may slow the relay recovery to something like 400ms so the audio doesn’t try recovering between characters. The TX-500 isn’t capable of full break-in QSK anyway, so there’s really no need for a 100ms recovery. I’ll also share this feedback with the engineers at lab599 as I suspect this can be sorted out in firmware. In the shack, it’s not an issue because audio levels are in the normal range, but in the field when the audio is cranked up, it’s pronounced. This also would not be an issue if using earphones, of course.

I do love this TX-500 and am very happy I’ve officially purchased it from lab599 and added it to my transceiver arsenal! Now to give it a name and make it official…

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Grab And Go, News, Portable, QRP

The Icom IC-705 is getting a rugged, weatherproof case

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I love my Icom IC-705–just check out my review if you need proof–and I love taking it to the field.

It’s a very compact radio for being so incredibly feature-rich and I love the portability simply using the attached battery pack. Since I operate mostly 5 watts with all my rigs, I rarely bother bringing an extra battery with it in the field.

With that said, I worry about the IC-705 more than any other portable radio I take to the field.

For one thing, it’s a $1,300 US rig. That’s not chump change for most of us.

The IC-705 also has a large color touch screen display. In fact, it’s the only field portable radio I own with a touch screen display. The touch screen has a matte finish and is pressure-sensitive rather than capacitive like most tablets and smart phones. Many capacitive screens use something like Corning Gorilla Glass which is actually quite durable and resistant to scratching and puncturing. It’s not perfect by any means (I think we’ve all shattered or broken a capacitive screen) but they’re more durable than the pressure-sensitive screen on the IC-705.

The IC-705 chassis feels very solid and it seems to be sealed very well, but at the end of the day, the chassis is make of a durable plastic material which is prone to scratching and I have to assume easier to damage than, say, the FT-817ND’s metal chassis.

Ray Novak with Icom America is a friend and when I took delivery of the IC-705 I mentioned how I felt protective of it in the field, fearing I might damage it in my backpack or even tumbling off a rock during a SOTA activation. Ray basically said that, as with everything new, I’ll get used to it and become more comfortable in the field.

I’ve never completely gotten there, though, and I’ve had this radio for a good nine months now.

I’m a backpack guy, so when the IC-705 is packed for field action in one of my Red Oxx or GoRuck backpacks, I house the IC-705 in a $14 Ape Case Camera insert. It’s not perfect, but fits it well.

I mentioned in my review that I eventually wanted to find a better solution.

I’ve looked at a number of 3rd party “cages” and 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 (Peovi, send me a loaner to try out if you wish to prove me wrong.)

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.).

The form factor of the IC-705 is otherwise fine, but its chassis design does make it a little more difficult to protect than, say the KX3 or FT-817/818.

I’ve come to the conclusion that most of the time I use the IC-705, it’s on POTA activations where it’s sitting on a picnic table. Although I’m a backpack guy, this is the perfect time to kit out a ruggedized, weatherproof case.

Which case?

I started looking at cases last week and, being transparent, I’m a bit of a snob about these things. I want a case that’s made by a reputable company to protect the ‘705–I’m not going to hunt for one at a Walmart or Canadian Tire.

I’ve owned a few Pelican cases over the years. All have been smaller ones like the Pelican 1060 I’ve used with my KX1s.  Pelican has a solid reputation and are certainly the best-known in this market and Pelican still makes all of their cases in the USA.

I’ve also been looking for a reason to try the case manufacturer, Nanuk. They design and manufacture all of their products in Canada and have a great reputation. Their pricing is the same or, at times, even slightly more competitive than Pelican for comparable cases.

Although I rarely care about the color, I decided I wanted a light grey or silver color for this case as opposed to black (my standard default), yellow, or another bright color.

In the Nanuk case line, their Nanuk 915 was probably the correct size to give the IC-705 enough padding, and allow space for all other accessories and items I’d need in the field.

In the Pelican line, I liked the Pelican 1400.

I was just about to pull trigger on the Nanuk 915 via the Nanuk website and decided it would make sense to also check pricing on Amazon.com for both units.

The Nanuk 915 was about $76 (affiliate link) with the pick foam insert–a great price–but only that price in the black color. The silver color was about $97.

I then checked the Pelican 1400. The black case with foam insert was $95, but the silver one was $79.95. Since I really wanted silver and since I had a slight preference for the 1400’s dimensions, I purchased the Silver Pelican 1400 (again, affiliate link).

Amazon offers free no-hassle returns, so once I receive the 1400 next week, I’ll carefully measure and double check everything before digging into the pick foam!

A case for advice…

I’ve never kitted out a larger Pelican case with radio gear. I would welcome any and all advise from those of you who have. Since it’s easy to remove pick foam, but impossible to put it back if done incorrectly, I really want to follow best practices.  Please comment!

New Products, News, Portable, QRP, QRP Radios, Reviews, Videos

Comparing the lab599 Discovery TX-500 with the Elecraft KX2

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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!

Antennas, Field Reports, News, Portable, POTA, QRP, QRP Radios

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

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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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Field Reports, News, Portable, POTA, QRP

Field Report: Pairing the LDG Z-100 Plus, Icom IC-705, and Chameleon Emcomm III Portable

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Last Tuesday (April 27, 2020), I grabbed my radio gear and my boots then headed to the Blue Ridge Parkway for a quick morning activation.

There were three factors motivating me: 1.) the weather was amazing 2.) I had three free hours in my schedule and 3.) I was eager to pair the LDG Z-100 ATU with the Icom IC-705 for the first time.

Hazel–my canine companion–was as eager to hit the field as I was.

“Let’s go, Dad!”

When she heard me grab my boots, she met me at the door with tail wagging.

I did plan to hit the Blue Ridge Parkway, but had not decided on an actual site. The lowest hanging fruit (easiest sites to reach from the QTH) are the Folk Arts Center and the Blue Ridge Parkway Headquarters. I wanted more altitude, though, so we drove to the Craggy Gardens Picnic Area.

This is a favorite spot for our family, but this time of year can be quite busy–especially around noon. I hoped that I could beat the crowds by arriving early.  We pulled into the parking lot around 9:00 AM and were one of the only cars there (score!).

Blue Ridge Parkway (K-3378 NC)

Hazel and I found a concrete picnic table overlooking the parking area and I quickly deployed the CHA Emcomm III Portable over a short tree with my arborist throw line. (Have I mentioned before how AMAZING an arborist throw line is? Why yes, I have!)

Gear:

On The Air

I made a video of the entire activation including pairing the Z-100 Plus ATU with the IC-705 via the supplied command cable.  In true K4SWL style, I didn’t read the Z-100 Plus owner’s manual or connect the Z-100 Plus to the IC-705 prior to recording.

Frankly, I forgot to read the manual I wanted to show what it was like pairing the Z-100 Plus and IC-705 for the first time without having even referenced the manual.  Fortunately, it couldn’t have been an easier process: connect the command cable, and go into the ATU function menu to activate the tuner.

I started my activation on 80 meters and–although the band was dead quiet–I worked K8RAT, WD8RIF, K4JAZ and ND1J in about six minutes.

Next, I moved up to 40 meters where I worked nine more stations in about thirteen minutes.

Finally, I moved to the 30 meter band where I worked two more stations in about five minutes.

One first for this activation was working K8RAT in north central Ohio on all three bands! His signal was incredibly weak on 30 meters, but I recognized his sideswiper “fist” or operating style.

At the end of the activation, I tested the Z-100 Plus by having it match the Emcomm III Portable random wire all the way up the band to 6 meters. It did a fine job.

No surprise here as the Z-100 Plus is a well-loved ATU that’s been on the market for quite some time already. At $150 it’s a proper bargain of an ATU. Unlike the mAT-705 Plus which only pairs with the IC-705, the Z-100 Plus is RF-sensing and can pair with any transceiver on the market.

Video

Here’s a video of the entire activation including pairing the Z-100 Plus with the IC-705 for the first time:

QSOmap

Here’s a QSO map of the entire activation:

This was a very enjoyable activation at one of my favorite Blue Ridge Parkway picnic areas. It was especially pleasant to have the place all to ourselves–a true rarity! I think Hazel was a bit bummed that our local red squirrels (we call them “Boomers”) weren’t out in full force. They’re proper “Squirrel TV” for her since she must be on a leash on the parkway and can’t chase them as she does at home.

If you’re ever travelling the Blue Ridge Parkway, this is a great area. As I mention in the video, the Craggy Gardens Picnic Area also borders a vast tract of land–accessible by a forest service road on the site’s driveway–where the Pisgah National Forest and Pisgah Game Land overlap for a POTA two-fer (here’s a previous report including this two-fer).

Craggy Dome–a SOTA summit–is also very close by. In addition, Mount Mitchell State Park is only 20-25 north on the parkway and offers up both a POTA site and SOTA summit. So many possibilities on this part of the BRP! One could easily activate four parks and two summits in the space of a few hours.

I hope you enjoyed this field report!

Thomas (K4SWL)