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  #1  
Old November 10th, 2009, 14:11
tbalcome tbalcome is offline
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Radio Communication? (Who had what) CB, Ameteur radio, ect

So just got my ameteur radio licence it was fairly easy to get, had to read a very simple book, show up to a test and done. Now I have installed a "2 meter" VHF radio it uses a 17" antenna vs the 48" antenna for my CB! It travels 20 - 50 miles vs. 2 - 4 miles of the CB, it can travel much further with the use of repeaters! The quaility is much improved! I am hopefull that more Jeep's become equipt with ameteur radio so we can improve on trail communication!

The cost of a 2 meter radio?
$15 for licence
$40 for decent antenna
$130 for a decent radio

I would like to know what other people's thought are on this?
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  #2  
Old November 10th, 2009, 14:17
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kastein kastein is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

I'm W1KAS, been a ham since before I owned my Jeep actually. As such I think it's a good idea for sure... I'm putting a CB in my Jeep but pretty much only for jeep stuff.

The Technician license (what I'm pretty sure you're talking about) is indeed pretty easy to get. General and Extra class licenses are more difficult, you need a stronger grasp of radio theory and operation and some basic electronics as well, still not too too difficult. As a plus, they get to use a lot more output power on a lot more frequencies, including some frequency bands that can go literally worldwide with the right solar conditions.

I know there are a couple other hams on here (including at least one who uses his callsign as his forum username.) Haven't really checked too far, but they usually all pop up in threads about installing CB antennas.
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  #3  
Old November 10th, 2009, 14:24
tbalcome tbalcome is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Yeah, I read the ARRL tech book in a week, sat for the test passed with a 95% the VE's convinced me to take the General and I passed with an 80% But I work in Public Saftey with radio's day in and day out and grand pa was a ham so had some experiance! But I would love to see more Tech with 2 meter or 70 cm in Jeep's!
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  #4  
Old November 10th, 2009, 14:31
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karstic karstic is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

I have a 2m/70cm rig in my Jeep
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  #5  
Old November 10th, 2009, 14:58
WB9YZU WB9YZU is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Welcome to the fraternity...

The purpose of the Amateur Radio Service is to provide trained operators and technicians in the case of an emergency or military service. I hope you join a local Amateur Radio Club and get involved in the Civil Service aspect of the hobby.

A CB, with 4 watts will cover the same line of sight distance as a VHF radio with 4 watts. Your increased coverage is due to more transmit power. When you use a repeater the coverage is increased, but generally where we go with Jeeps, there is no repeater.

17" Antenna for 2 meters? That won't fly.

Of all the times I have had a 2mtr radio in my Jeep, I have never spoke to someone on the trail with it. Most Jeep people are not interested in Amateur Radio. Most want to stick with CB, or lately FRS( .5 watt UHF handheld), GMRS (1 to 5 watt UHF FM handhelds, or 25 watt land mobile). For most folks, that fits the bill quite well with minimal investment all around.

Ron
WB9YZU
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  #6  
Old November 10th, 2009, 15:04
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kastein kastein is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Ron - according to my calculations, quarter wave for center of the 2 meter band would be approximately 20.22 inches, not taking into account feed impedance (5/8 wave works better when used as a whip on a ground plane), the velocity coefficient of an antenna vs free space, or any capacitive hat / inductive base loading used. 17 inches is well within the realm of possibility.
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My yard looks like Sanford & Sons.
Please do not PM me about the AW4 info thread unless you have a truly unique question that is not covered by it or info to add. I do not respond to questions answered by the thread.
Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
CTeunuch: Sometimes I really wonder if this sport makes you insane, or it just attracts the mentally unstable.
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  #7  
Old November 10th, 2009, 15:06
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Quote:
Originally Posted by Zuki-Ron View Post

Of all the times I have had a 2mtr radio in my Jeep, I have never spoke to someone on the trail with it. Most Jeep people are not interested in Amateur Radio. Most want to stick with CB, or lately FRS( .5 watt UHF handheld), GMRS (1 to 5 watt UHF FM handhelds, or 25 watt land mobile). For most folks, that fits the bill quite well with minimal investment all around.
I think around this area a Ham radio setup in a Jeep is pointless. Now if you're out where IntrepidXJ is and always traveling hundreds of miles exploring the backcountry, It would be much more useful. I may get a Ham setup and get my license when I buy a house and get settled in. My high school electronics teacher had a Ham setup up in our class room. It was pretty cool.
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  #8  
Old November 10th, 2009, 15:21
tbalcome tbalcome is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Ron
So far with my 75watt 2 meter and 17" antenna I can hit a repeater that is 50 miles away in the mountains and be heard clearly!
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  #9  
Old November 10th, 2009, 15:23
WB9YZU WB9YZU is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Quote:
Originally Posted by kastein View Post
Ron - according to my calculations, quarter wave for center of the 2 meter band would be approximately 20.22 inches, not taking into account feed impedance (5/8 wave works better when used as a whip on a ground plane), the velocity coefficient of an antenna vs free space, or any capacitive hat / inductive base loading used. 17 inches is well within the realm of possibility.
Your calcs are off.

Try this formula: 238/mhz, where mhz in this case is 146. You'll get 1.6 ft.
1.6ft = 19.2 in.

Don't sell the 1/4 wave antenna short (all puns intended). In many cases it will outperform a 5/8 wave antenna. It is also a "Natural Match" to a 52 ohm feed line.

Ron
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  #10  
Old November 10th, 2009, 15:28
tbalcome tbalcome is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Quote:
Originally Posted by FlexdXJ View Post
I think around this area a Ham radio setup in a Jeep is pointless. Now if you're out where IntrepidXJ is and always traveling hundreds of miles exploring the backcountry, It would be much more useful. I may get a Ham setup and get my license when I buy a house and get settled in. My high school electronics teacher had a Ham setup up in our class room. It was pretty cool.
That is a misconception, here in Colorado we have statewide repeater coverage! Well over half of the rocky mountains you can reach out for help with a 2 meter! And depending on the radio type you can transmit radio to radio with out repeaters 2,500 miles away might come in handy if you are broke down or hurt in the back country!
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  #11  
Old November 10th, 2009, 15:30
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Quote:
Originally Posted by tbalcome View Post
That is a misconception, here in Colorado we have statewide repeater coverage! Well over half of the rocky mountains you can reach out for help with a 2 meter! And depending on the radio type you can transmit radio to radio with out repeaters 2,500 miles away might come in handy if you are broke down or hurt in the back country!
Oh I understand that but here in Indiana there aren't too many real remote areas like out there in CO and UT.
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  #12  
Old November 10th, 2009, 15:32
tbalcome tbalcome is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Quote:
Originally Posted by Zuki-Ron View Post
Your calcs are off.

Try this formula: 238/mhz, where mhz in this case is 146. You'll get 1.6 ft.
1.6ft = 19.2 in.

Don't sell the 1/4 wave antenna short (all puns intended). In many cases it will outperform a 5/8 wave antenna. It is also a "Natural Match" to a 52 ohm feed line.

Ron
That is what the HAM Radio Outlet sold me and they have tons of 1/4 wave antenna's 16" to 20" like I said above running a 75w mobile im reaching well over 50 miles from the front range of colorado to the rocky mountains! Infact I'm dont even need the full 75w I will have to try again but I belive I was only using 45w
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  #13  
Old November 10th, 2009, 15:36
WB9YZU WB9YZU is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Quote:
Originally Posted by tbalcome View Post
Ron
So far with my 75watt 2 meter and 17" antenna I can hit a repeater that is 50 miles away in the mountains and be heard clearly!
Not to sack the experience, but that really isn't any great feat.
Try that mobile to mobile on flat ground and the I'd be yelling "HAZAH!"

Now if you really want to cover some ground, do aeronautical mobile. You'd suprised on how far 5 watts will go when your up 2000 ft agl


What kind of antenna are you using on 2 meters that is only 17" tall?

Ron

Last edited by WB9YZU; November 10th, 2009 at 15:41.
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  #14  
Old November 10th, 2009, 15:38
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kastein kastein is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Depending on how many connectors and how well you terminated your cable, you might even be effectively using less than that.

... reminds me... I need to get a Bird thruline meter at some point. Or rather, I need to get some 1 5/8 EIA flange to UHF or N connector adapters and a few more plugs that aren't for 5kW worth of some band hams don't even have transmit privs on (picked up a 1 5/8 EIA flange thruline and some wacky plug at a hamfest recently.)
__________________
My yard looks like Sanford & Sons.
Please do not PM me about the AW4 info thread unless you have a truly unique question that is not covered by it or info to add. I do not respond to questions answered by the thread.
Definitely do not hunt down my phone number at 3AM, text me about it, and then threaten violence when I am not helpful. It will not get you what you want.
CTeunuch: Sometimes I really wonder if this sport makes you insane, or it just attracts the mentally unstable.
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  #15  
Old November 10th, 2009, 15:46
tbalcome tbalcome is offline
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Re: Radio Communication? (Who had what) CB, Ameteur radio, ect

Quote:
Originally Posted by Zuki-Ron View Post
Not to sack the experience, but that really isn't any great feat.
Try that mobile to mobile on flat ground and the I'd be yelling "HAZAH!"

Now if you really want to cover some ground, do aeronautical mobile. You'd suprised on how far 5 watts will go when your up 2000 ft agl


What kind of antenna are you using on 2 meters that is only 17" tall?

Ron
http://www.cometantenna.com/products...ID=4&childID=4

Its the: SBB-1NMO
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