IC-705 – KK4Z

Support Your Parks, QSK and QSL

This past weekend was the Support Your Parks on the Air Weekend. My local radio club, the West Georgia Amateur Radio Society (WGARS – https://wgars.com) operated from Cheaha State Park which is the tallest point in Alabama. While there I spent some time with a new ham and we got on the subject of CW paddles. He asked for a recommendation and at the time I didn’t really have a good answer. On the way home from the event I thought about it and if I was to make a recommendation today, it would be a Begali Simplex Begali Simplex Paddle. Currently they cost about $163 USD and are built to last a lifetime. I am a fan of their paddles and own 5. Begali paddles are built like tanks with the precision of a Ferrari. Their customer service is bar none.

While at the park, I set up my IC-705/AH-705 with a Chameleon Delta Loop. The 705 is a fun and very capable radio. The paddles I used were made by Modern Morse. These are very nice paddles and well built. However, during the operation, I was having trouble adapting to them. I made a lot of mistakes. It just didn’t feel right. I decided to check the paddle force or the amount of pressure it took to depress the paddles. I had been holding off getting a dynamometer but pulled the plug and I am glad I did. I first measured a set of paddles that I use well which were my Begali Expedition. They measured about 25 grams of force. As I went through my other paddles I discovered a wide range of forces between them. Some as high as 50+ grams.

One by one, I got them all adjusted to 25 grams and switching between paddles has become much easier. Why didn’t I do this sooner? I got the gauge from amazon Amazon – Dynamometer.

QSK vs Semi-Break in. In CW, QSK means the the radio quickly switches between transmit and receive so you can hear dits and dahs from another station in between your characters and words you are sending. Some people love QSK, some people hate it. I like it because a good operator can send a dit at the right time to make you stop and listen for them. An example might be you calling CQ too fast and a well placed dit will get you to pause long enough to allow the other station to send their call and start a QSO or exchange. Some radios have noisy relays and QSK makes too much of a racket. Adding a little delay to make it semi-break in will cut down the chatter.

QSL. I no longer send out QSL cards. Life has gotten rather busy and I find myself not being able to keep up with QSL cards. I am usually very diligent about updating LOTW. Thanks to everyone who visits my blog and YouTube channel. I hope you are enjoying this fall weather as much as I am. 73 de Scott

Shack Shakeup Continues

I have a stable of radios. I like radios. I have spent the past couple of years going through radios and finding the ones I like to use. I think I am getting close. In the shack, I like my IC-7610 and TS-890. They are big and all the controls I use are easy to get to. There performance is top notch. I am content.

QRP radios. This has been my greatest controversy. When I retired, I thought I was going to do a lot of QRP with little radios and maybe even do some SOTA. It didn’t turn out that way. I found myself using big radios at low power. They are easy to use and because of their heatsinks, they never overheat at low power. I did keep one little radio the IC-705, of all the little radios I had, the 705 was the one I grabbed the most.

Field radios. I went through a bunch of radios here too. I kept my IC-7300 which I bought new and has stayed with me over the years. I may sell it off for the new IC-7300MK2. I recently acquired a TS-590sg which went with me on my recent POTA activation at Black Rock Mountain State Park.

It was definitely a fun radio and I look forward to using it more in the future. Yesterday, an IC-7200 was delivered by UPS. The was a trade I had in the works. I always wanted an IC-7200. It’s a basic radio that has a military vibe to it. Being a Veteran, it appealed to me. The radio came with the rails and the MARS mod was already done. The radio is pristine. Power draw at idle is about 1 amp and at 20 watts it draws about 8 amps. Lowering the power level does not overly change the amp draw. Above 20 watts and the amp draw increases. Twenty watts is the happy medium. Here in the shack I had it turned on and was able to work N0SA. I have a set of his SOTA paddles from his last run before he retired. They are fun to use. I plan on taking the 7200 on my next POTA adventure.

During the past couple of years after making many POTA activations, Field Days (winter and summer), Army MARS, and SHARES I was able to shape how I operate. Some of it was a surprise as I was led in a different direction than when I started. I guess when it comes to radios, I may march to the beat of a different drummer. I prefer big radios (IC-7300 size) over little radios. I like that the controls are easier to get to and they don’t overheat. In the field I usually run around 20-35 watts. Most of the time I am in my micro-camper so I am not carrying the radios very far. I may have to lug them 50 feet to a picnic table. I recently bought one of those folding wagons so weight is no problem.

Another surprise was my use of FT8. Band conditions on many of my outings was poor. If it wasn’t for FT8, I may not have had a valid activation. Plus, I discovered I could work a lot of DX while in a park using FT8.

Yaesu’s. I don’t have any Yaesu’s. I have tried to like them, but they are just not for me. I had an FTDX10 for about 18 months, a FT-710 for about a year total, and a FTX1 for a couple of months. To me they are kind of quirky. The Icom’s and the Kenwood’s are solid performers and the ergonomics are superior. I know how to make them dance and sing. I know there are those who love Yaesu and I get it. To each his own. Find the radios that suit you best and enjoy them as I have. The journey is half the fun. 73 de Scott

The FTX1 Cover Up

One of the things I was concerned about the FTX1 was how to protect its face while in transit. The Yaesu side rails which are not yet available are too large. They make the radio too bulky. Icom, when they made the IC-705 available also released a STL file so we could make our own covers which I did. Actually, I modified the file and my son printed it on his 3D printer.

The other day, I decided to check to see if someone had made a STL file for a FTX1 cover. They did! I downloaded the file and sent it to my son who printed it out for me (19 hours). The file was unmodified and fit the FTX1 to a tee. The file can be found here: Yaesu FTX1 3D Cover

I will wrap a silicone rubber band around it to keep the radio secure in the cover. The cover weighs 6.5 oz and the whole weighs just over 4 lbs without the rubber band. For comparison, My IC-705 with cover weighs in at just under 3 lbs.

Another annoyance or at least a distraction is during CW transmit. On the FTX1 the frequency readout flashes in time to CW along with the xmit light above the main dial. It is rather bright. I shot a YouTube video showing the difference between the FTX1 and the IC-705.

Where does this leave me. Well, for one thing wondering what Yaesu was thinking. I’m not giving up on the radio, hopefully as time goes by, Yaesu will work out some of the kinks. I am a bit annoyed that Yaesu is using us as beta testers. I would expect that from a company like Xeigu which sells their radios for less than half the price of the FTX1. The FTX1 is supposed to be a premium radio at a premium price. Come on Yaesu, you can do better. I think Yaesu had an opportunity and missed the mark. As I said in a prior post, I have been very busy this summer. Hopefully soon, I will get the FTX1 out in the field. So far, as of today if I had to choose between the FTX1 and the IC-705, I would still choose the IC-705 for a QRP radio. For a full size radio, I would take the IC-7300 or the FT-710 over the FTX1 Optima. Of course, your mileage may vary. Thanks for stopping by. 72 de Scott

DF’ing the QRM

The other day in the early evening I suddenly got a 10 over S9 signal on my radios. Depending on the frequency I am on, commercial/government stations will test their radios by running a carrier for a couple of hours. That is what I thought it was. However, in the morning, it was still there and I began to think it was powerline line interference instead. It was a steady signal and was approx. 60 Hz. I decided to see if I could find the cause and report it to the power company.

I first tried going out with my handie-talkie, but it wasn’t accurate enough. The meter didn’t have enough range to really pinpoint the source. One of the problems with powerline QRM is it is transmitted through the powerlines and it can seem like it is coming from different poles/transformers.

My next setup used my IC-705 with my handie-talkie antenna. I set the IC-705 to airband (AM) and went walking down the street. I used my body as a shield to find the nulls. This worked fairly well and helped me to narrow down the location of the source but it was still too sensitive. In the photo below the HT antenna is on my left side near the shirt pocket.

My third attempt was to use an old Fox Hunting Yagi antenna. This did the trick. I walked up and down the street a couple of times holding the 705 in one hand and the Yagi in the other. The Yagi gave me enough side to side rejection to locate the source. I used the Yagi in the vertical orientation and for more attenuation, I turned it horizontal.

The problem was coming from my neighbors transformer. I called the power company and in about 30 minutes, I had a repairman at the house. Fifteen minutes later and the noise was gone. The power company in my county has excellent service. Even though we live outside of city limits, they have always been quick to get our power restored. 73 de Scott

IC-705 vs FTX1 receiver part 3

To some, this part of the test is where the rubber meets the road. For this portion I hooked both radios up to the same antenna and used an A/B switch to go back and forth between the radios. The signal source came from this morning’s CWops CWtest, a weekly one hour sprint. many of the signals are under 500 Hz apart and there are usually weak and strong signals in the mix.

I recorded about 5 minutes of the CWtest switching the radios back and forth approximately every 30 seconds. I made a YouTube video which I will post below. While I was recording I sat directly behind my iPhone so keep that in mind that my comments are from live first hand experience.

Receiver. Before the test, I had both radios turned on and attached to the antenna. When switched to the IC-705, I could hear faint CW signals even though the S-meter or the waterfall were not showing any indication of a signal. When I switched over to the FTX1, I couldn’t hear the signal. generally speaking, I feel that the IC-705 has a slightly lower noise floor than the FTX1. Both radios have good receivers and it would take an experienced ear to make use of the lower noise floor.

Filtering. I set the radios up the same: CW mode, no RF gain, DNR set to 2, filter width set to 250 Hz, and waterfall to 5K on each side. When the test started, I found a weak signal that had a strong signal next to it, approx. 300-500 Hz away. Both radios did a very good job even though both had some filter ringing. The desired signal was still clear and easy to copy. About halfway through, I swapped and found a strong signal with a weak signal nearby. The weak signal was about 300-500 Hz away. this time there was no ringing and the desired signal was easy to copy. Both radios performed about the same.

Audio. The FTX1 has more audio, that’s the best way I can put. It is louder, and sounds more full than the IC-705. To my ear, the audio port design, volume, and frequency response appear to be geared toward SSB and FM. However, the CW signals out of the IC-705 sounded clearer and more distinct. This may due to the smaller speaker acting more like a tweeter making the higher pitched CW signals sound clear. The FTX1’s CW sounded a little muffled. For me, when I operate CW I am usually wearing headphones or earbuds.

Summary. Performance wise, you can’t go wrong with either radio. If you are the audiophile type, the FTDX1 might be a better choice. CW ops might like the IC-705 better. I will post the YouTube video below once I get it uploaded.

FTX1 vs IC-705 Connectivity

This morning I wanted to explore connectivity with the FTX1 and the IC-705. Right off the bat, the IC-705 comes standard with Bluetooth and GPS while the FTX1 requires a separate purchase for each. The Bluetooth unit cost $55 and the GPS cost $70. the IC-705 has one additional feature in that it also acts as a Wifi access point to allow you to control the radio via iPhone/iPad apps like SDR-Control SDR Control Website. With this app I can operate FT8 and CW. It has message memory and logging. The Wifi on the IC-705 is not intended for internet connection.

Getting back to the FTX1, it took a little figuring but I got it running FT8 on my Windows machine. The FTX1 is so new that there isn’t any control configurations out there on apps like WSJT. A little tinkering and I got it to work just fine. Here are the setting I used.

You want to use the enhanced com port. I also ended up using a USB C to USB A cable instead of a USB C to USB C. I was having trouble getting the latter to work and it may have been something on my part to cause it not to work. I will fool with it some more later.

UPDATE: I was able to get the radio to work with a USB C to USB C cable. However, something I missed was while WSJT software will Xmit and Receive, it will not QSY the frequency on the FTX1. I tried this with FT-891, FT-991, and FTDX10 CAT Command sets in WSJT. Usually with Icom’s there is enough compatibility between the radios that the CAT setting from one model will work with another. An example would be the IC-7610, it is pretty cross compatible with the IC-7300 command set. Hopefully this will be addressed soon.

On the IC-705 you can output GPS data through the B port. This can be used for different things, I use it sync the time on my laptop when I am using one. As far as I can see this feature is not planned for the Yaesu.

The Yaesu is still brand new, I had it 2 days and there was already an update. I am sure as the product matures, more features will be added. I like the radio; it has a certain fun factor. If someone asked me today, if I could only have one, I would pick the IC-705. But that is today, tomorrow as the FTX1 is refined, I may change my mind. In between, I plan on having fun with both. 72 de Scott

IC-705 vs FTX-1 Power

In this post I will take a look at the power requirements of both radios. Again, this is not a detailed in depth scientific experiment, more in line with what the average user would do with equipment he/she may have on hand. One of the first things I did was hook the radios up to a power supply, in this case a Samlex SEC-1223BBM and I used one of those generic power meters. At idle:

That was surprising! The Yaesu uses 155% more power at idle than the Icom. One possible way to look at that is the IC-705 with a 3.3 Ah battery may have the same operating time as the FTX-1 with a 6.1 Ah battery. This makes the Icom even lighter because it needs less battery.

Next I hooked the radios up to a dummy load and Bioenno 3 Ah battery and did a key down at 5 and 10 watts to measure the power consumed. First at 5 watts.

Interestingly enough, the IC-705 is more efficient in its power usage. It is 340 mAh less than the FTX-1. Moving on to 10 watts.

The Icom again is more efficient being 240 mAh less power draw than the FTX-1. What does this mean? I think in rough terms a 3 Ah battery with the IC-705 will give you approximately the same operating time as a 6 Ah battery for the FTX-1. If you are a drive-up POTA guy, this is no big deal. If you are a remote POTA guy or a SOTA girl, power conservation may become an issue. For me, I will use my 3 Ah battery with the IC-705 and get a 6 Ah battery for the FTX-1. Note: The IC-705 with a 3,3 Ah battery weighs 1 pound less that the FTX-1 with a 6.1 Ah battery.

Now comes my first gripe with the FTX-1. The FTX-1 uses a different power connector than my other small radios. My IC-705 and my KX2 both use the same connector. Some of my other QRP radios in the past also used the same connector. Now I have to make sure I have the right connector for the radio. In the image below, the Yaesu connector is on the right. The center hole is larger than the one on the left (Icom/Elecraft).

From here, my reviews/blog post will become more sporadic as I have to get the radio setup and taken out in the field. Unfortunately for me, POTA parks are all somewhat far away and I can’t just pop over for an activation. I do have some big trips/roves planned and I will be bringing the FTX-1 with me. In general, I like the radio, it has a nice fun factor and it does some things very well. In the near future I plan on doing an a/b test with the IC-705 during a CW contest.

One thing to note is the FTX1 can use USB C to charge the batteries however it requires PD (Power Delivery) and needs 45 watts. That would mean a USB C charger similar to one you would use to charge a laptop. The IC-705 can be charged using a regular USB A to Micro USB cable. This might become important if you are trying to save wait or space.

Stay tuned de Scott

FTX-1 vs IC-705 Physicality

I decided to take a look at the FTX-1 and see how it compares to the IC-705. I now have both (I own both) so I can take a good look at each in comparison. My intention is to treat this in a similar fashion as I did for the FT-710/IC-7300. My take is not an in depth technical review but how the radios are perceived through the eyes of a user/operator. First up is the physicality of the radios.

The screens are the same size on both radios. The FTX-1 is a little wider and the IC-705 is a little thicker.

Adding the batteries seems to equalize this as the Icom’s battery is set into the radio and the Yaesu’s sticks out.

One is wider, one is thicker, handling the two radios, I would say it’s a wash.

Weight
Here there is a difference. The Yaesu weighs more. Handling the radios, the Yaesu feels heavier than it actually is. It feels like a brick.

The FTX-1 is 6.3 ounces or 17% heavier than the IC-705. with out the batteries. Adding in the batteries.

For the Icom, I added to additional batteries to bring the total storage up to 6.3 Ah similar to the Yaesu’s 6.1 Ah battery. Even so, the IC-705 weighs less than the FTX-1 by 9.4 ounces or 16.34%. Note: The Icom with a 3.3 Ah battery weighs about 1 pound less than the FTX-1 with a 6.1 Ah battery (see the next post about power).

Size wise, I feel the radios are comparable, they would both fit in a pack or box interchangeably. Weight could be an issue for some. For those doing a POTA activation carrying their radio from the car to a park bench 50 yds away, weigh will probably not be an issue. For those who like to pack it in or do SOTA, weight would be a more critical concern. For me, my days of over hill and dale are pretty much done. If I had to travel light I would turn to my Elecraft KX2.

Next up power with some more surprises de Scott

Yeah, I might be a little fickle

I’m not afraid to tell on myself, I can own up to it. Last night I decided to go ahead and order a Yaesu FTX-1 Field. Not without reason though. I watched a few YouTube videos from hamvention with John from Yaesu talking about the FTX-1. He mentioned that the performance of the FTX-1 would be similar to the FT-710. That could be impressive. I just finished up a review on my FT-710 so I have a feel for the radio.

Another cause and effect was yesterday, I pulled my IC-705 out getting it ready for some POTA activations. I had been remiss doing QRP CW activations focusing instead on low power digital with full size radios. I have been feeling the urge to brush up on my CW skills. Back to the 705, I like the radio a lot. It does indeed push all of the buttons. I was holding it in my hand thinking it’s not so bad for a portable radio and the FTX-1 is only a little bigger…I thought I might do another comparison series this time between the 705 an the FTX-1. I have a couple of big trips planned for the fall and winter and these radios will do nicely.

Another reason that pushed me toward the FTX-1 was the price of used radios, they are over the top right now. I was looking at a KX3 and it was the same price as the FTX-1. Even some of the other used radios were more than I cared to spend for them. One thing I forgot to mention, is I have grown used to waterfall radios. I have learned to use them to help me find places in the band to operate and to do a real time check on propagation. It’s amazing what you can glean from those screens.

Hopefully, over the next couple of months I’ll put the IC-705 and the FTX-1 through their paces. Up front I will say that I have a preference for Icom radios, but the FT-710, KX2, and TS-890s have found places here at the ranch. I am not adverse to using different brand radios, I use whatever fits me best.

The new radio should be here in a couple of days and then the games begin. This should be fun. 72 de Scott

QRP QRMe

Over the past couple of years, I have spent a lot of time taking what I call big radios to the field. These are 100 watt radios that I run at reduced power usually between 20 and 35 watts. I can run digital modes all day long on a big radio at this power and it won’t even get warm. I usually take them out for a weekend camping trip.

That has gotten a little stale, I feel I have a good understanding of how those radios and antennas work and I have made 1000’s of contacts all over the world. It’s time to do something different. I have 2 wonderful QRP radios, a KX2 and an IC-705, that haven’t seen a lot of use. I have also let my CW skills slip a little. Change is in the wind. I am planning some trips using my little (QRP) radios. in addition, I may spend a few nights in a motel rather than camp. Each day I am out, I can mini rove and do a couple of parks instead of just one. I feel the change will be refreshing, kind of going back to my POTA roots.

This fall, I am planning another multi-state rove. This will be a multi-day rove hitting a park in a state and moving on. It will be a nice drive and a lot of fun. I want to try my hand at quick set-ups and tear downs. The beauty of amateur radio is the diversity of things you can do. Sometimes, you gotta due a few things for fun. 73 de Scott