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HF Antenna for My Kenwood TH-F6A

My Kenwood TH-F6A handheld will receive HF frequencies. The stock antenna does a very poor job at that (I might as well had a dummy load hooked up instead of the antenna).  I was anxious to see if something more closely resembling an normal HF antenna might help.

I ordered an SMA-BNC adapter from Thor Labs. It arrived today.  I used it to connect the DX-EE trap dipole in the attic to the TH-F6A and it worked wonderfully!

For my next QRP outing I’m putting together a portable inverted Vee for 40 meters.  I will bring the TH-F6A along and test it with that antenna as well.

Making Echolink Contacts is as Difficult as QRP

Yesterday I decided I understood echolink well enough to try to make a few contacts.

My favorite UHF repeater is an echolink node and I talked to the owner and he gave be the specific access instructions.

I’ve connected to several repeaters in the UK and a few here in the US but I did find a single ham who would respond to my call.  Of course, that’s not much different from the response to “XXXXX listening” on any normal repeater so I guess I should not be disappointed.

I would have thought however that the sound of someone popping up from Phoenix Arizona on the repeater in Glasgow Scotland would have enough notoriety that I would get a response.

To EchoLink or Not To EchoLink, That is the Question

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I was describing to one of my younger non-ham friends what I do as a ham radio operator. I described a normal HF SSB or CW contact.  Her response was “Why not just use ICQ (Internet chat)?” I thought about it for a minute and then told her that the allure was in making the contact, not on the content of the resulting conversation. The satisfaction comes from getting an antenna up that actually works, and doing the dance with the ionosphere and propagation so as to successfully make contact with someone.  The content of the resulting conversations is immaterial. Let’s call this class of hams the ‘technology guys’.

Of course the ‘ragchewers’ would completely disagree,  For them it is all about the content of the conversation.  It’s the old question: What’s more important, the trip or the destination?  Fortunately, there is room for both types in ham radio.

Enter EchoLink

(Understand that as I write this, I am an ‘EchoLink Skeptic’ who is trying to understand the allure of EchoLink.)

The idea of EchoLink is pretty simple: You talk on a VHF/UHF ham radio. The signal goes to repeater ‘A’. Repeater ‘A’ is connected to repeater ‘B’ via the internet. Your signal pops out on repeater ‘B’ and you can talk to anyone in repeater B’s coverage area.

The technology guys should love it.  

The thrill and satisfaction comes from bending the technology to your will; Getting the right things to work together in the right ways so that you can make the contact.  The important thing is having your signal pop out on the GB3WD repeater in Plymouth, UK and talking to someone there. Who exactly you talk to and what you talk about are less important. This seems little different from my adventures in the early days of packet radio.

The ragchewers should love it.

One of my most memorable ham radio contacts was with a ham in Ketchikan, Alaska. I learned what the weather and life is like in Ketchikan – it was very interesting. The band, radios, and antennas we used became less important than the content of our conversation. Making a contact with someone in a faraway place via EchoLink should be no different.

What about bringing up an EchoLink Node?

Connecting a radio to your computer via the EchoLink software allows people to make contacts through your node. This seems to me to be little different than putting up a repeater. While I have no desire to do that, others live for it.

I think I’m talking myself into liking EchoLink.

 

I Bought a Kenwood TH-F6A

Monday was my birthday and so I decided to give myself a birthday present of a new HT. I researched all the high-end HTs and decided on the Kenwood TH-F6A.  My decision-making process was something like this:

  • Because I also have a Kenwood TS-590 and TM-D710, I was inclined toward the Kenwood HTs because of the similarities in user interface.
  • I quickly ruled out the Icom’s because the only extra feature they offer is D-Star and I have little interest (no interest, actually) in D-Star.
  • The Kenwood TH-D72 is pretty much a hand-held version of the TM-D710 that I already have so I would not be gaining any additional functionality/capability.
  • The Kenwood TH-F6A also operated on 220 in addition to 2M and 450. I thought it might be fun to play with that.
  • The Kenwood TH-F6A will receive DC to Daylight (actually 100KHz to 1300MHz). I occasionally need to be able to listen to my TS-590’s transmit signal on another receiver and the TH-F6A would make that pretty convenient.  Being able to use it as a portable SWL receiver (as well as AM and FM broadcast) is also a big plus for me.
  • I dismissed the Yaesu VX-8DR simply because $420 is more than I wanted to spend.
  • The Yaesu VX-7R was interesting for it’s 6M capabilities but other than that it would not do anything for me that the Kenwood TH-F6A would not.

Thoughts Now That I’ve Owned and Operated it a Few Days

First, no regrets.  I still believe I made the correct choice.

Intuitive user interface is important to me.  Maybe it’s because I’m an older guy and grew up in an era when radios had knobs and switches, but I have this rule:

If I’m broken down on the side of the road, can I pull the radio out of the glovebox of my car after not using it for six months and figure out how to operate the major functions (volume, squelch, frequency, offset, tome, memory) without looking at the instruction manual?

So far the Kenwood TH-F6A rates five stars in this regard. I suspect that it’s because I also have the TS-590 and TM-D710 so I am used to the ‘Kenwood way’.

After doing some reading online, I replaced the stock antenna with a Diamond SRH320A for improved performance, both in transmit and receive.

The TH-F6A is able to monitor my TS-590’s transmit signal here in the shack.  Otherwise though the HF sensitivity is pretty poor. I can’t even receive WWV.  The next step is to rig up a long wire antenna for it and see what happens.

I originally thought its small size would be a problem but it actually fits very comfortably in my hand.  Ditto for the buttons. They are spaced far enough apart that I’m able to punch the button I want with no difficulty.

“I Just Got My License. Which Radio Should I Buy?”

You just got your amateur radio license and are ready to by your first ham radio but don’t know what to get. I hear that a lot.  I read that a lot on various ham radio message boards. Perhaps you are reading this because you are wondering the same thing.

I’m going to take a leap of faith and focus on VHF/UHF handhelds as opposed to HF rigs because that’s what most people are asking about.  Here is my $.02 worth.  (If you want to skip everything and get straight to the bottom line, I think the Yaesu FT60R is the sweet spot.)

There are two rules and they are in conflict with each other, but consider them as two lines on a graph. The point where those two lines intersect represents your ‘sweet spot’ and the radio you should buy.  Here are the two rules:

  1. Spend the least amount of money possible when you dip your toe in the water because you have no idea if this hobby will ‘stick’.
  2. Buy a radio with the widest array of features. There are many facets to this hobby and right now you don’t know which one will spark your interest. By buying a feature-packed radio in the beginning you stand the best chance that your first radio will be good for the long haul.

First let’s get this out of the way: I think your first handheld should be a VHF/UHF dual-band radio.  You should follow Rule 2 at least that far.  No matter what your level of interest, you are going to want to try repeaters on both bands. Therefore in the discussion that follows I’m going to ignore single-band radios.

Disclaimer:

I’d love to own every radio I talk about here but I don’t  This is my opinion only, based upon what other people say and handling most of these radios either in the store or borrowing one from a friend.

Rule 3:

Can you put the radio away for six months, pick it up, and figure out how to do the basics without re-reading the manual?  By the ‘basics’ I mean set frequency, repeater offset, tone, and power level. Each major manufacturer has their own philosophy regarding user interface.  My HF radio, VHF/UHF base, and VHF/UHF handheld are all Kenwood simply because their user interface layout and operation makes the most sense for me. My previous VHF/UHF base radio was an Icom and even after using it for ten years I still needed to refer to the instruction manual far too often. Other people love them however.

My strong suggestion is that you go to the major manufacturer’s websites and download the manuals for the radios you are considering. Read the manuals with an eye to understanding how to perform the basic functions:

  • How to switch bands
  • How to set the frequency
  • How to set the repeater offset
  • How to turn on sub-audible (CTCSS) tones
  • How to select the correct sub-audible (CTCSS) tome.
  • How to store frequencies/settings to memory
  • How to recall from memory.

Spending the Least Amount of Money:

The Baofengs are as far down the curve of Rule #1 as you can get. Translation: they are just about the least expensive radios you can buy.  In fact the Baofengs are so cheap ($60) they could almost be considered disposable radios. Many people have reported that they are fragile and tend-to auto-dissassemble. But if that’s all you can afford then that’s what you should get.

The Most Feature-Rich Handheld Radios:

Right now the most feature-rich handhelds are:

  • Kenwood TH-D72A
  • Kenwood TH-F6A
  • Yaesu VX-8Dr

Each of these is very different from the other two. You should carefully consider the feature set of each radio and ask yourself if you could ever anticipate wanting/needing that feature.  For example, I have the Kenwood TH-F6A because it will receive the HF ham bands (SSB or CW).  Though I’m sure I’ll never use it as my primary HF receiver (my HF rig is a Kenwood TS-590), I think that it’s good to have a second radio around so I can listen to the 590’s signal when necessary.  On the other hand, someone else might consider HF receive to be just about the most superfluous feature of a VHF/UHF handheld. To each his own.

The Kenwood TH-D72A has a built-in TNC and APRS, as well as Echolink.  If the digital modes intrigue you then this radio is a good candidate.

The Yaesu VX-8DR is probably the most feature-rich of the bunch.  It has APRS. It has GPS.  It can operate on 6 Meters (which none of the others can do). It has the widest array of accessories.

Somewhere in the Middle

In the middle between the Baofeng UV3R and the Yaesu VX-8DR sits a bunch of radios.  They all pretty much share the same core features but each has its own wrinkle.  For example, the Yaesu FT-1DR supports GSM. This is the point at which Rule #3 comes in to play. Look at each one and ask yourself, “Can I operate this radio on the side of the road without the manual to call for help after not even touching it for six months?”

In that regard, it’s tough to do better than the Yaesu FT-60R.  It’s been around a long time and so it’s pretty much bug-free and has stood the test of time. It’s also pretty inexpensive (under $150).  I know people working satellites with it. I also like it because it has two knobs on top controlling volume, squelch, and frequency, which are the three things you are going to be changing the most.

AZ ScQRPions Club 2013 Ft Tuthill QRP Conference

After my lack of success making any QRP contacts a couple weeks ago, I decided that I had some learning to do.  Coincidentally, a friend sent me the flyer for the AZ ScQRPions QRP Club Conference.  It was held August 2 and 3.  I was unable to get away on Friday (August 2) but I decided to drive up to Flagstaff Arizona and spend Saturday August 3 there.  It was well worth it.

I attended some really interesting sessions:

  • Scot Cowling (WA2DFI) presented a program on SDRstick HF Software Defined Radios, an in-depth look at the SDRstick series of simple SDR receivers.
  • Lyle Johnson (KK7P) of Elecraft gave a great presentation on the development of the KX-3.
  • Bob Proctor (N6YPE) gave a great presentation on the new Ten-Tec 506 Rebel.
  • Ward Harriman (AE6TY), author of SimSmith, a PC based Smith Chart gave a great demonstration of SimSmith.

I also received lots of advice and encouragement from some very experiences QRPers:

  • The band conditions the past few weeks have been lousy.  Don’t give up.
  • Switch my antenna configuration to an inverted vee in order to elevate the feed point.
  • Switch to the low end of 40M (7020-7055) where there are more low speed CW QRPers.
  • Don’t worry about my code speed being just 10WPM.  That’s just fine.

The conference was well worth the time spent.

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