HAM - Single or Dual Band?

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Joined
Jan 30, 2007
Threads
75
Messages
1,351
Location
Los Angeles, CA
Dual is cool because you can moniter 2 bands at the same time. What I do is program one band on the that days trail run freq, and the other band I will have on a local repeater.
 
I chose single because the vast majority of overlanders are on 2 meter. I also wanted the best radio/antenna match out there so i went with a huge 2 meter antenna too. When you start getting into dual and quad band radios you sacrifice your strength IMHO.
 
I misunderstood between dual band and dual monitor. I got dual band because the repeater club that I am a member of uses 440, and everyone on the trails uses a 2m. 440 is good for urban/city area.
 
On a slightly different topic what kind of range are you guys getting in simplex mode around LA? Would I be able to talk to a friend in Glendale from Burbank?
 
I suggest you get a Yaesu VX7. An HT is more versatile as a first radio.

They are versatile, but dont have much power, and they are expensive.

My recommendations for a first radio are:
Mobile - Yaesu FT-1802 or FT-2800
HT - Yaesu FT-270R (replaced FT-170)

these are just over $100 and 2m only, but will allow you to get your feet wet and figure out what you really want and need in a radio.
 
They are versatile, but dont have much power, and they are expensive.

~$250 for a quality, indispensable piece of gear isn't what I consider expensive. Especially for the amount of radio you get. Sure for $100 you can get a single band mobile or HT, but chances are you'll soon outgrow it.

Also think about the mount and coax that you'll need for a mobile rig. That's maybe another $100. Now you've spent $200 and your first and only radio is limited to being in the vehicle. For ~$50 more you get a radio you can use in the rig, on the trail, on hikes, on walks, in town and just about everywhere else. It can hear and key repeaters surprisingly far away and will work just as good if not better doing simplex on trail rides. With the HT you can get out of the vehicle and still have communications.

You don't need much power. For it's intended usage, 5 watts is plenty of power. If you think you're going to talk to China on 5 watts with an HT then you don't know what you're doing. But with the right setup, you can do a lot with 5 watts.

Listen to some of the local repeaters and you'll find out that a lot of guy/gals are using their HT on the repeater. They come in just as good as mobile and base rigs with 50-100 watts. The key here is that they know their limitations and aren't 200 miles from the repeater.
 
~$250 for a quality, indispensable piece of gear isn't what I consider expensive. Especially for the amount of radio you get. Sure for $100 you can get a single band mobile or HT, but chances are you'll soon outgrow it.

Also think about the mount and coax that you'll need for a mobile rig. That's maybe another $100. Now you've spent $200 and your first and only radio is limited to being in the vehicle. For ~$50 more you get a radio you can use in the rig, on the trail, on hikes, on walks, in town and just about everywhere else. It can hear and key repeaters surprisingly far away and will work just as good if not better doing simplex on trail rides. With the HT you can get out of the vehicle and still have communications.

You don't need much power. For it's intended usage, 5 watts is plenty of power. If you think you're going to talk to China on 5 watts with an HT then you don't know what you're doing. But with the right setup, you can do a lot with 5 watts.

Listen to some of the local repeaters and you'll find out that a lot of guy/gals are using their HT on the repeater. They come in just as good as mobile and base rigs with 50-100 watts. The key here is that they know their limitations and aren't 200 miles from the repeater.

Well, I'd have to take issue with some of these statements.

I have both, and they really are for quite different purposes.

Yes, the HT is very versatile, portable, convenient, and all that. But it is limited to 5w, and that can and will make a BIG difference on many trail runs.

If your group is tightly-bunched all the time, the HT will suffice. But if you find yourselves getting spread out a bit, like the leader is a couple miles up the tight, twisty canyon and you're the tail gunner in a 15 or 20-rig train, still stuck way back in the flats, you'll find that you won't be able to commmunicate with the HT, but the dedicated mobile will most likely be able to punch through. (this is all assuming simplex operation) There is, quite simply, no comparison between the two "in this type of situation". Again, it really depends upon what you want.

Best to have both, really, but now that I've had both, I'd highly recommend the dedicated mobile unit as a start. Yes, my tri-band HT with it's 12" rubber-ducky antenna can, under ideal conditions, trip a repeater 70 miles away, but you'll find that the mobile unit will outperform it under pretty much all conditions.

And, believe it or not, the antenna is more important that the rig. I've been in several groups in the last couple years where some members bought nice dedicated mobile units, and then decided they hated those cumbersom 40" long whips, and opted for the small 18" whip instead. Big mistake. they found themselves unable to be heard in many situations, while all around them, those with the larger antennas were able to be heard quite clearly. There is a difference.

As far as a mount and antenna costing $100. I bought a Wilson brand magnetic mount antenna because I don't use the radio much except for trail runs, so I didn't need a permanent mount. This antenna works fantastically, and it comes with 18' of coax and the proper PL259 connector. It cost me $35, maybe they're $50 now? And the radio comes with a mounting bracket.

Final comment. If you do decide on an HT as your first/only rig, for trail use I'd strongly recommend an external, roof-mounted, full-size antenna. IF you use that arrangement, you'll be on a par with a dedicated mobile rig at it's lowest power setting, and that is enough for most trail scenarios.

Dana
 
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:hhmm: Nobody is going to answer this?
I cant comment since I never had the opportunity to ask somebody to communicate with me thru simplex. Im always trying to hit repeaters and see how far I can go.


Hmm, that's a good question. both towns have some hills, so I imagine it would be quite difficult to reach from the eastern extremes (next to Pasadena) of the glendale hills over to the other side of the hills in Burbank.

However, if you were in downtown Glendale trying to make it to say, Burbank Airport, I think that is pretty do-able.

Here's a few different scenarios.

On a NorCal Death Valley trip, I had left the group a day early and was still talking with them as I drove past Panamint Springs Resort. Andy was leading the pack up one of those tight canyons, and he was near the top (I think he was on the way up to South Park). He was unable to communicate with the last guy in the train, who was still in the flats. I could hear them both, so I relayed messages for awhile.

I was probably 20 miles from them, they were probably less than 2 miles apart.

Another trip: I was on the way back from a little desert cruisin, was driving West through Apple valley, trying different repeaters. I hit the Catalina Island repeater from the back side of the San Bernardino mountains. go figure! I've got a huge mountain range between me and the repeater, I'd guess it was maybe 80 miles away, and I'm hitting it and talking to people. All I can figure is that the mountains must have been reflecting the waves somewhat. I was able to hit the repeater all the way down the I15 through Victorville, down the Cajon Pass, along the 210, and I finally had a little difficulty as I climbed up and over the Cahuenga Pass and got behind the Hollywood hills, then it dropped out. But as I drove a bit further north away from the H Hills, I was again able to hit it.

Third scenario: In 2007, I left Flagstaff, supposed to meet the NorCal group at Natural Bridges national monument in SE Utah, they were coming in from the north. I drove north into Utah and turned on the radio, listening for them. I heard them talking among themselves and I broke into the conversation, they heard me just fine. I was sitting on the top of a plateau about 40 miles south of the monument, they were (according to the map) approximately 100 miles away, descending down a mountain. So the conditions were pretty good, line-of-sight, on high power, and the quality of the communications was excellent. As they descended into the lower elevations, I eventually lost them, even though they were closer.

So, to answer that question, from glendale to burbank. It all depends! You gotta go try it.

Dana
 
Final comment. If you do decide on an HT as your first/only rig, for trail use I'd strongly recommend an external, roof-mounted, full-size antenna.

This is the setup that I'm basically referring to in my post, but must have left it out. But you won't need this to start out, an HT with its OE rubber ducky will do the job. Later as you see fit, you can add an external mount and antenna, and aftermarket HT antenna and a mobile unit.

In regards to mag-mounts. I'm not a fan of them for off-road use. They can catch on branches and if the branch is strong enough, the mag-mount will get dragged across whatever panel it's attached to. Nor is there a lot of space for a mag-mount on an 80.

I'd say the most suggested mount is the K400 which comes with coax. It's ~$70 plus tax or shipping, so you're looking at almost $100.

What it really comes down to is what do you want to do with it. Do you just want trail communications or do you have further interest in AR. My suggestion is more for people that are looking into getting more involved in AR rather than just trail communications.
 
This is the setup that I'm basically referring to in my post, but must have left it out. But you won't need this to start out, an HT with its OE rubber ducky will do the job. Later as you see fit, you can add an external mount and antenna, and aftermarket HT antenna and a mobile unit.

In regards to mag-mounts. I'm not a fan of them for off-road use. They can catch on branches and if the branch is strong enough, the mag-mount will get dragged across whatever panel it's attached to. Nor is there a lot of space for a mag-mount on an 80.

I'd say the most suggested mount is the K400 which comes with coax. It's ~$70 plus tax or shipping, so you're looking at almost $100.

What it really comes down to is what do you want to do with it. Do you just want trail communications or do you have further interest in AR. My suggestion is more for people that are looking into getting more involved in AR rather than just trail communications.


Mag mounts aren't for everybody, but I like them for my purpose.

I started with a mag mount on my CB, a Wilson 1000, still have and use it when the group only has CB. I liked that antenna so much that when i got the 2M gear, I went with the same brand.

In 15 years of wheeling, maybe 8 times I had to get out of the truck and re-attach the mag mount because it got caught in some branches and folded. You learn to anticipate the low branches and come to a very slow crawl when going under them. Of course, some are so low that no matter how slow, it's gonna tip over the antenna. but those things really have a grip, I can go under branches that are only a few inches above the top of the loading coil, fold that whip right over, and it'll stay put.

In some groups that have a mix of CB and 2M, I run both antennas up there without any problem. On top of an 80, but I have no roof racks up there.

Re using HT's inside cars, with their original antennas. You lose a tremendous amount of signal due to reflection and absorption of the signal by the car's metal body.

And, since this is a subject that's tested for on the exams, the RF energy that's absorbed by the human body may or may not be an issue at the power level of 5w. Probably not an issue in this case, especially for the duration you'd likely to be exposed to during most trail usage. However, if you've got a tendency to talk a lot, maybe using the built-in antenna inside the car on 5w might not be a good idea.

This is an issue that's been raised in the past by RF engineers. keep in mind that cellphone usage for extended duration is still undetermined as to effect on the human brain, and they emit a max of 600mw.

Much better and healthier to get that energy outside onto the roof where it belongs.
 
I've got Yaesu FT-8800's in both the cruiser and commuter car. Dual Band. I like the dual band set up. I scan local repeaters on one band and leave the other on national simplex. I'll eventually add an HT, but I like the range of the rig mounted units. With a dual band you can also use it with an HT as a repeater. There's also the cross band feature of a dual band radio. You can set up one band for input from an HT and the other band to transmit the signal out with the stronger radio. Havent' done this...but planning on it some day!
 
This is great information guys. One week and i will take my test and then I will get my radio. After a lot of research and looking at what will fit me best I am leaning towards the Yaesu FT-7900.

Do any of you mount your antenna on the rear bumper? I know that this is not the best spot but I cannot mount on the roof and would really like to use the mounting holes that came on the Slee bumper. I've read that if you use the rear bumper it requires a lot of bonding to the frame.

If this is more trouble than it is worth I will probably mount on the rear hatch as a lot of guys have done on MUD. I just thought that after paying so much for a bumper it would be nice to use the mounting holes that came with it.
 
This is great information guys. One week and i will take my test and then I will get my radio. After a lot of research and looking at what will fit me best I am leaning towards the Yaesu FT-7900.

Do any of you mount your antenna on the rear bumper? I know that this is not the best spot but I cannot mount on the roof and would really like to use the mounting holes that came on the Slee bumper. I've read that if you use the rear bumper it requires a lot of bonding to the frame.

If this is more trouble than it is worth I will probably mount on the rear hatch as a lot of guys have done on MUD. I just thought that after paying so much for a bumper it would be nice to use the mounting holes that came with it.

The only thing you should be mounting on the antenna mount of the bumper is a long CB antenna, like one of the old whips, or at the least a 5' long fiberglass whip.

The full-size 2M antennas are only about a meter tall, and if you try to put it on the bumper, you'll be radiating most of your power right into the car body. Not good for the radio (will cause a terrible mis-match on reflected power) and not good for any kind of range.

If you absolutely cannot mount it on the flat roof, or on a roof rack up there, then the next best compromise is either the rain gutter, or the rear hatch, but up high. You gotta get that thing up in the air, otherwise you'll be talking pretty short distances, and then what's the point of having the radio?

:)
 
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As you've probably seen in threads on antenna mounts, I use Diamond mounts on the side of the hatch for both my 2m and CB antenna's. Not cheap, but very nice.

Good luck on your test!
 
I passed my test woohoo! How long does it take before my name/callsign shows up in the FCC database?

Thanks for all the info, most likely I'll be going with the FT-2900 and then upgrade from there if I need too.
 
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