Here’s a MOLLE-related [piece of field kit] you may not have seen yet.
My summer 2022 QRP /PM rig is built around a Condor chest plate – not really a pack although there is a plate carrier compartment that thinner things store in easily enough. And I often have a small accessory pouch in the chest plate.
The key ingredient is the IC-705 adapter plate, made from scrap 0.06 inch thick aluminum scrap.
The four tines that fit the chest plate MOLLE webbing are spaced per the MOOLE/PALS standard of every 1 1/2 inches, but the tines themselves are 3/4 inch wide rather than 1 inch to make them easier to insert in the chest plate.
The plate is attached to the 705 with M4 by 10 socket head screws. I first used a single quick disconnect 1/4-20 photographer’s knob, and it worked, but eventually would loosen enough that the radio would start to swivel.
The orange strap that retains the adapter plate at the top of the chest plate is riveted to the adapter plate with plastic POM rivets. The chest plate is a Condor MCR3, about 26 bucks on eBay.
The radio goes in and out of the chest plate in less than a minute, and the adapter plate can be removed in a minute or two. The radio is very stable and easy to operate.
As a bonus, the loops also hold a Buddistick mast section, then a Versatee with a Buddistick.
With the antenna in front, I can change bands and adjust the whip and coil while standing. The antenna also goes in and out of the chest plate quickly.
I’m finding it’s great fun to listen and operate on the way to and from my operating destination. Definitely the easiest /PM set I’ve had. Every control and jack, and the battery, is easily accessed with the radio attached to the plate.
It’s like the 705 was intended to be used this way!
72, keep up the great work.
Scott ka9p
Absolutely fantastic pedestrian mobile setup, Scott! I love how the custom IC-705 mounting plate makes such a stable surface for the IC-705 to be suspended as you operate. As you say, you also have very easy access to all of the station components. Brilliant!
Thank you for sharing your design notes and photos!
Because I receive so many tips from readers here on QRPer, I wanted way to share them in a concise newsletter format. To that end, welcome to QRPer Notes, a collection of links to interesting stories and tips making waves in the world of radio!
QSO Today Ham Radio Expo, March 12-13, 2020
Many thanks to Vince (VE6LK) who reminds us:
QSO Today Ham Expo is THIS WEEKEND starting on Friday evening MT and early bird tickets are only $10 until the event opens Friday evening. Drop by through the weekend and find me in the Ham Radio Workbench Lounge in between presentations of course. Your entry fee gets you 30 days of video replay for those presentations you can’t see live.
KU3X Explores IC-705 Current Drain and Battery Packs
Many thanks to Barry (K3UX) who writes:
Thanks partially to your feedback, I purchase the IC-705 and I am one happy camper.
Icom states the current drain on receive for this radio is between 500 and 800 ma. So I tested the radio.
At 13.8 volts of supply voltage, the radio draws 200 ma on receive. What? At 12 volts the radio draws 225 ma on receive and at 11 volts, like off of a 3 cell LiPo battery the radio draws 250 ma.
When I made these tests, I removed the Icom clip on battery. Now going down to 8.4 volts, the radio draws 335 ma on receive.
So here’s the fly in the ointment: At 8.4 volts from the external supply, the radio would not transmit. It would not transmit at any voltage under 10 volts.
Conclusion….. there has to be a boost circuit built into the radio that goes between the battery and the radio. So to boost the battery voltage you will draw more current.
Thank you for sharing this, Barry! Funny enough, I’ve never thought to check current without the battery attached, but that makes sense. This would give us data knowing the radio isn’t using more current to recharge the battery pack at the same time.
Typically, the lower the voltage, the higher the current drain and vice-versa. Also, I believe you’re correct in that there would be some extra consumption with the voltage booster in play.
Thanks for sharing this!
DX Commander channel (temporarily?) removed from YouTube
A number of friends and readers have reached out to note that the DX Commander YouTube channel hosted by Callum (M0MCX) has been completely removed from YouTube.
Callum’s channel is incredibly popular and this removal has everyone scratching their heads, so it’s no surprise there’s wild speculation floating around out there. Don’t fall into that rabbit hole.
I fully suspect that this is simply an error on Google/YouTube’s part and that his original channel will eventually be reinstated.
In the meantime, Callum has started a second/backup channel where he’s posting content. Click here to check it out.
Many thanks to Dave (N9EWO) who notes that Ray Novak with Icom America recently announced price increases we’ve already started seeing in 2022. Dave shares the following video from DX Engineering queued up to the point where Ray makes the announcement:
Of course, this price increase likely applies to the entire Icom range, not just the IC-705 and probably applies internationally since all Icom products are produced at the same facilities. It appears the increase is roughly 5 to 6 %.
A few Discovery TX-500s in stock
Speaking of Ham Radio Outlet, I received a message from Owen (KB2QQM) with HRO who notes:
If you know anyone that wants a TX-500 we have 4 ready to ship.
Just a heads up. I’m enjoying your videos of POTA and the website.
73
Thank you for the heads-up, Owen. As I post the link this morning, I see that HRO may already have sold these units (that was fast!). If interested in one of these units, you may wish to call HRO and confirm if you’re interested.
POTA this morning!
As a side note, Hazel and I are hitting the trail in a few minutes and plan to activate both Pisgah Forest (K-4510) and Pisgah Game Lands (K-6937) as a two-fer.
We’ll be taking the new Xiegu X6100.
It may be too late by the time you read this (it’s 12:30 UTC, January 6, 2022 now), but readers have asked me to announce when I might be doing part of an activation in SSB and since I was making a QRPer Notes post, I thought I’d add this.
I plan to include some SSB time this morning,if I can get spotted. The area where I plan to set up has no Internet coverage whatsoever–it’s in a very deep valley–but I hope to send a text via my Garmin In-Reach Mini to have friends spot me.
Listen for me in/around 7188 kHz (+/- 5 kHz depending on available frequencies) around 14:15 UTC (+/- 30 minutes). I’ll start the activation on 40 meters CW.
Because I receive so many tips from readers here on QRPer, I wanted way to share them in a concise newsletter format. To that end, welcome to QRPer Notes, a collection of links to interesting stories and tips making waves in the world of radio!
Ashhar Farhan VU2ESE demonstrated Hfsignals upcoming SDR transceiver – sBitx today at Lamakaan Amateur Radio Meet.
VU2ESE was working on this SDR Prototype for some time now. sBitx is the latest iteration of the popular homebrewer transceiver Bitx series started a couple of years by Farhan.
Keynotes
Raspberry Pi instead of Arduino – No more Arduino Code, sBitx code is written from the scratch for Raspberry Pi.
Jim Stafford, W4QO became a Silent Key yesterday. That news wasn’t unexpected, I had been closely following the North Georgia QRP mailing list these last few weeks dreading the announcement that arrived yesterday morning.
I had known Jim for more than 20 years. We first met in the late 90’s during a Four Days in May event back when the conference took place at the old hotel south of Dayton. I think we hit it off because we both were native Hoosiers, but his infectious enthusiasm for the hobby made everyone want to be around him.
He became my guide into the world of low-power radio and over the following years we regularly renewed our friendship on the air, via email, and in person almost every year during FDIM at Dayton. [Continue reading on Jeff’s blog…]
Last week, my family hopped in the car and took an eight hour drive to the Outer Banks of North Carolina.
We’ve had such a busy 2021 that we decided to take a full week prior to Christmas and fit in some proper vacation and family time.
We love going to the coast off-season to avoid big crowds. Turns out, we chose well, too: it’s as is we have the whole of the Outer Banks to ourselves. Other than a couple days with some “invigorating” weather (which we actually enjoy) it’s been absolutely spectacular.
The view from our cottage
While radio plays an important role in any travels, my family time always takes priority. The good thing about activating parks is that radio and family time often go very well together!
On Friday, December 17, 2021, my daughter Geneva (K4TLI) and I decided to spend the day together while my wife and other daughter worked on an art project at our rental cottage. We had a few loose plans, but mainly wanted to fit in a nice beach walk, possibly discover some new scenic spots, and enjoy a take-out lunch together.
She very much liked the idea of fitting in a bit of POTA, so we hit the field with two sites in mind.
The plan
My Subaru is still in the body shop getting repaired after a bear decided to open the doors and make himself at home, so we have a Toyota Camry rental car on this trip. It’s been a great vehicle for sure, but its trunk space is limited and we packed quite a lot of food knowing local restaurants would be closed this time of year.
We all limited our luggage and I limited the amount of radios and gear I took. I could write an entire article about my holiday radio and antenna selection process (seriously, I put too much thought into it) but in a nutshell I limited myself to two radios and two antennas.
I’ve gotten a few messages from readers lately asking, “Why no love for the Icom IC-705?”
Looking back, I realize that I haven’t had the ‘705 in the field for quite some time (at least, in a video and field report).
Truth is, the ‘705 has been doing duty as a shortwave listening receiver in shack and just hasn’t hopped into my field pack recently. Since it’s important for the health of all field radios to soak in the outdoors on a regular basis, I packed it in my bag and took it to one of my favorite parks.
Tuttle Educational State Forest (K-4861)
The weather was beautiful on Thursday, October 21, 2021.
When I arrived at Tuttle, the first thing I did was hike their 2 mile loop to get the blood pumping.
This also gave me time to decide on the antenna to deploy: my Chameleon CHA LEFS.
During my hike I decided to do the entire activation on 40 meters only, just to get a better idea how the CHA LEFS’ propagation footprint might look with a larger sample size.
This was also the first time I’d used my N0SA paddles with the IC-705. Isn’t it cute?
Setup was quite easy.
I deployed the CHA LEFS with the feed point at about 35-40′ into a large tree.
The radiator sloped down to a point in the middle of a field and the end was elevated perhaps 4′ off the ground. I secured the end of the antenna to a length of paracord, the end of which was attached to a heavy stick on the ground, stretching the radiator.
The CHA LEFS is resonant on 40 meters, so no external ATU was necessary.
I hopped on the air, started calling CQ POTA in CW and within 10 minutes was rewarded with 10 contacts. It doesn’t get much better than this for a good start!
I continued calling CQ and, in the end, worked a total of 22 contacts in 30 minutes–almost all in CW. Check out the video below to see how it all played out.
Many thanks to KC5F and N9UNX for the Park-To-Park contacts!
Video
Here’s my real-time, real-life video of the entire activation (less antenna set up and take-down):
The QSO Map shows an interesting pattern: a ring with a few close regional stations (almost NVIS), and an outer ring of 40 meter skywave:
Thank you!
I believe one of the attractions of activating parks and summits is the fact that we really have no idea in advance how it might all play out. It’s a bit like going fishing.
I’ve gotten a lot of questions from readers lately about what propagation tools I use. In truth, my main propagation forecasting tool is my buddy Mike (K8RAT). Before I head out–or if he knows I’m hitting the field–he’ll usually text me current conditions and they’re quite accurate.
At the end of the day, though, propagation forecasts never stop me from doing an activation when I want to play radio. I just go out there and see what happens. As I’m sure my childhood fishing buddy–my Great Uncle Luther–would have said, “Any day fishing is better than a good day at work!” (Of course, a real quote from Uncle Luther would have included more “colorful metaphors.”)
A special thanks to those of you who are supporting the site and channel through Patreon and the Coffee Fund. While certainly not a requirement as my content will always be free–I really appreciate the support.
Because I receive so many tips from readers here on QRPer, I wanted way to share them in a concise newsletter format. To that end, welcome to QRPer Notes, a collection of links to interesting stories and tips making waves in the world of radio!
VU3HZW’s News blog primarily for South Asian Amateurs
Many thanks to Saquib (VU3HZW) who writes:
Hello Thomas,
My name is Saquib VU3HZW from North Eastern India. Your blog is a trove of knowledge for any QRP operator. Your style of writing is awesome!
Now, here’s the story. I’ve started a Amateur Radio News & Blog – itshamradio.com. As a QRPer, you must be familiar with VU3SUA (Sunil Lakhani) from https://amateurradiokits.in.
We would be pleased if you [and your readers] could read some of the articles and give us some valuable feedback. This is just an honest attempt by us to create a vibrant amateur radio news blog primarily for South Asian Amateurs.
Good luck with the new site and thank you for sharing it with us, Saquib!
IC-705 Mic A/B button CW Keyer Challenge
Many thanks to Keith (GW4OKT) who points out that the Icom IC-705’s A/B buttons can be set up to send dits and dashes. It doesn’t allow for proper iambic keying and, as Keith admitted, isn’t terribly easy in practice. Nevertheless, he gave it a go and provided these short videos operating the IC-705 at 20WPM CW:
Thanks for all the interesting videos. I have a Icom IC-705 with the Peovi frame/handles and I found a clear plastic box that makes a perfect friction fit with the Peovi for a protective front cover. Thought I would pass on the info as I know people are on a quest for such a thing.
I’ve included a few photos. Thanks again for all the videos.
73 Joe Korpela WB7VTY
Thank you for the tip, Joe! There are a lot of IC-705 Peovi cage owners out there, so this will come in very handy!
Due to how The Container Store organizes their online store, it can be difficult to find the exact product, even using the SKU number in the search. Here’s a link to the product page for the family of containers. Simple scroll down until you find this listing (click image to enlarge):
This will allow you to add it to your cart and purchase. The price is $9.99 US.
After making my first activation of Fort Dobbs State Historic Site, I knew I’d be back in short order. It had all of the things I love about a great POTA site: it’s accessible in my weekly travels, has tall trees, a huge shelter, and friendly park rangers. Plus, it’s chock-full of history.
Does it get any better?
Fort Dobbs State Historic Site (K-6839)
On Wednesday, August 25, 2021, I stopped by Fort Dobbs for a quick activation.
Even though I arrived only shortly after the park opened and I was obviously the only guest there, I checked in at the visitor’s center to get permission to do the activation.
Not only did they grant me permission, but they also allowed me to set up in their main covered picnic area.As I mentioned in a previous post, I believe you should always ask permission at small historic sites like Fort Dobbs. For one thing, I want the staff to know where I am and what I’m doing. Unlike vast state and national parks, their spaces to set up may be more limited and the last thing you’d want to do is set up shop in a space where they plan to do a scheduled outdoor presentation in period costume.
In addition, some historic and archaeological sites may have restrictions on the types of antennas you employ. I’ve known of some, for example, that require fully self-supporting antennas that need no trees nor no stakes in the ground.
The folks at Fort Dobbs couldn’t be more friendly.
On the air
I decided I’d pull out the trusty 28.5′ speaker wire antenna and see how well it might perform while paired with the mAT-705 Plus and Icom IC-705.
Set up took all of three minutes.
With super lightweight antennas like the speaker wire antenna, there is rarely a need to tie off the end of the throw line to hold the antenna in a tree and in position. Unless there are strong winds, the weight of the throw line itself will hold it in place. Deploying the antenna and connecting it to the ATU and transceiver may have taken me two minutes.
Relying on trees can be a little unpredictable; some sites may have trees that are too short, some with branches that are too high, some that are too dense with branches, and/or trees may not be ideally situated for a field activation. When things aren’t ideal, it might take much longer to deploy a wire antenna in a tree. This is one reason why so many POTA and SOTA ops choose to bring their own collapsible support–it gives them a degree of predictability when setting up at a new site.
Fortunately, at Fort Dobbs, there are numerous trees that are ideally situated for effortless field deployments.
I hopped on the 40 meter band and started calling CQ.
Fortunately, propagation was in pretty good shape, and I worked a string of contacts.
It was nice to experience a more “normal” activation where propagation wasn’t completely in the dumps.
I eventually moved up to the 20M band and did a little hunting before finally packing up.
All in all, I made eleven contacts–just one more than the 10 required for a valid POTA activation.
I could have stayed and played radio for a much longer period of time–and I was tempted for sure–but I chose to fit in one more activation that morning at nearby Lake Norman State Park. So I packed up and moved on.
QSO Map
Here’s the QSO map of my contacts at Fort Dobbs:
Video
I made another real-time, real-life, no-edit video of the entire activation as well. You can view it via the embedded player below, or on YouTube:
I didn’t work any DX at Fort Dobbs, but I was super pleased with the speaker wire’s performance using only 5 watts of output power. I imagine if I would have stayed on the air for another hour or two, I could have worked a couple stations in Europe. It was a tad early for much activity on 20 meters.
Thank you!
Thank you for reading this field report and a special thanks to those of you who are supporting the site and channel through Patreon and the Coffee Fund. While certainly not a requirement–my content is always free–I really appreciate the support.
If you can, find some time to chase or activate a park or summit near you! Or, if you have an opportunity, just take your radio outdoors, hop on the air, and have some fun. It’s good for your soul!
And a friendly reminder: you don’t need a fancy radio or fancy antenna. Use what you’ve got. Pretty much any transceiver you’re willing to lug to the field will work. And antennas? As you can see, even $4 of speaker wire conjures up some serious QRP magic!
I carved out a little time on Tuesday, August 24, 2021, to play POTA and take a hike at Tuttle Educational State Forest (K-4861).
Being August in the Piedmont of North Carolina, it was a very humid and warm day. That wasn’t really a problem, though, because Tuttle has so many well-shaded picnic tables.
Once I arrived on-site, I decided to deploy the Chameleon CHA Tactical Delta Loop (TDL) antenna for a few reasons: I thought it might make for some good daytime NVIS action, perhaps even a little fun on the 20M band, and it’s so darn quick to deploy.
With the state of propagation the way it is these days, though, I never know what to expect on the air despite the antenna or my wishes!
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Many thanks to Scott (KA9P) who writes:
