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Mobile Vehicle Database
Robert Sherwood (NC0B)
on
February 28, 2005
View comments about this article!
I have a suggestion for a new service. We have all sorts of reviews on products, but no data on which vehicles are good for a mobile platform and which are not. Personally, after years of mobiling with few noise problems, I now am driving a 1991 Toyota 4Runner. This is the worse noise source I have ever owned, and the most annoying in its many sources of HF noise.
How about allowing hams to submit their experience with different vehicles so we know what to consider and which ones to avoid.
This article has expired. No more comments may be added.
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Mobile Vehicle Database
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by WA6BFH on February 28, 2005
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I myself really enjoyed my Crown bus! It had a 262 Cummins diesel, so therefore had no ignition noise. Since I only drove it on long trips, usually back and fourth from Anaheim to San Francisco, it was cool for that ‘late night’ 40 Meter rag chew! I had a fine and memorable mobile QSO with three astronomers at the Navy Observatory in Arizona, Hawaii, and Sacramento one evening -- really cool stuff!
73! De John
PS
I did have a bit of Alternator whine at first but, that was easy to fix.
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Mobile Vehicle Database
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by GM7CXM on February 28, 2005
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I run my HF setup in an Opel (GM) Astra. It has a turbodiesel engine and gives absolutely ZERO noise anywhere at all. Excellent performer.
73 de Duncan EA5ON / GM7CXM
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Mobile Vehicle Database
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by W2NSF on February 28, 2005
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http://www.eham.net/forums/MobileHam
Let's not reinvent the wheel; this site is already crowded with redundant issues, forums, equipment review titles, etc.
Rather than making a brand new item, why not just use the forum already provided for this purpose and make this site more useful and efficient?
Thanks!
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RE: Mobile Vehicle Database
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by N4HRA on February 28, 2005
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I drive a 99 Dodge Carvan with the tail pipe grounded to the frame and have almost 0 noise
Lew
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RE: Mobile Vehicle Database
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by K1CJS on February 28, 2005
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My personal vehicle is a 1991 Mercury Grand Marquis which was a former city vehicle with the added power package (heavier alternator and extra wiring) which Ford uses in its Crown Victoria police packages. There is no noise whatsoever on the V-UHF rig, the HF rig OR the EMA (470 mhz) band radio I have in it.
I don't care what you may say about Ford products, they know what is needed for RF noise free applications.
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RE: Mobile Vehicle Database
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by AA4PB on February 28, 2005
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The problem is that there are so many variables involved. The type of antenna, how and where its installed. The bands being used. The type of radio. How it is installed, how the cables are routed, how much bonding has been done, what options are on the vehicle, etc. If you get enough user input, at best you may be able to identify certain vehicle types that are particularly difficult.
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RE: Mobile Vehicle Database
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by K0BG on February 28, 2005
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Hello again, Robert.
I believe you can make almost ANY vehicle quiet enough to use amateur radio without the need for a noise blanker. Obviously, some are worse than others, including the latest diesels which use electronic injection or shuttles.
When I stated my web site, this was one of the items I wanted to add. However, what I have discovered would make such a list nearly useless. Within the last three years, I have installed amateur transceivers in two identical vehicles.
To wit, 2002 GMC Denali. Same engine, same everything except one was white and the other pearl in color. The white one was the noisiest vehicle I ever worked on. The pearl colored one required a few beads here and there, to stop some egress from a couple of servo motors, but nothing to the ignition except beads over the COP control wires.
Unfortunately, there is no practical way to test a vehicle before you buy it. And nowadays, some diesels are noisier than gas engines so selecting one is no panacea.
Alan, KØBG
www.k0bg.com
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Mobile Vehicle Database
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by N4ZOU on February 28, 2005
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I have a 92 Dodge Dakota truck that developed a very bad RF noise problem. It would produce a constant noise when driving and would become and on/off noise when the vehicle was at idle. This drove me nuts until two weeks later when the fuel pump in the tank died. The new fuel pump solved the noise problem! If your vehicle is over 10 years old and/or has over 100,000 miles, you should consider having it changed out so you don't get stranded on the side of the road somewhere and it could very well be your noise problem.
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RE: Mobile Vehicle Database
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by WA6BFH on February 28, 2005
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I think the installation was another reason why I liked my bus. I never worried about bonding but, I had 7 antennas on that puppy! Two 440 MHz spikes for full duplex, single ¼ wavelength whips for 135 centimeters, as well as 2 Meters and 6 Meters, a Top-loaded Hustler for HF, and a base loaded whip for 11 Meters. You gotta talk with the boys on the road about keep’in the greasy side down, don’t ya know!
Anyway, it was a fun installation. I had power wiring for 12 VDC, 24 VDC, 117 VAC, and 234 VAC; I could even run my Gonset amplifier, with four 811A’s!
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Mobile Vehicle Database
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by KI4GYT on February 28, 2005
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I drive a 1997 Jeep Grand Cherokee w/ the 4.0L six, operating VHF using a mag-mount antenna on the roof. I get zero interference, and good audio reports.
My friend has a Dodge Dakota pickup with a window-mount antenna, with Gawd-awful engine noise.
Have a good night!
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Mobile Vehicle Database
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by N9BC on February 28, 2005
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I have a 1999 Ford Ranger and I get s9 on 80-6m. It gets worse when I step on the gas. I've added grounding straps to almost everything still s9. Can't wait to get a new truck.
-Brent N9BC
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RE: Mobile Vehicle Database
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by K3UD on February 28, 2005
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Have to agree about the Ranger. I think models from 1995 through 2000 are about the worst. My wife drives one in this model range and the noise is so bad it wipes out all but the stronger AM stations on the BC band. I have never attempted to put a HF transceiver in it. Tried a 2 meter FM unit in it once...big mistake.
Some of the better vehicles I used for mobile work over 37 years were the 95 Dodge 11 passanger RAM van with the 360 Magnum V8, A 73 Plymouth Grand Fury with the 318 V8, A 2001 Astro Van with the V6 (still using it) an 87 Astro Van, And 1966 and 69 Ford Galaxie/Ltd.
However, the hands down best was a tie between a 68 Olds Cutlass with the 350 V8 and the 1976 Chevy Chevette (GM had some kind of RFI reduction kit that the dealer installed, Worked like a charm and I could detect almost no ignition pop and no alternator whine.)
The worst vehicles for mobile use were an 87 Chevy Cavalier V6 Wagon, An 89 Ford Probe 4 cylinder, a turbocharged 84 Dodge Daytona, a 95 Chevy S10 V6, and a 91 Nissan PU. However, other than the noise problems, they were all pretty decent vehicles.
73
George
K3UD
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RE: Mobile Vehicle Database
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by AH6RR on March 1, 2005
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I drive a 95 Dodge Dakota with some noise on 40 the other bands are great with no noise using a Kenwood TS-440S/AT and a Kenwood TH-261 for 2 meters also perrfect. I have been noticing lately that when any of the new GM's 2004-5 modles come within say 50 to 100 feet that a strange digital whine appears on any HF band. Feel sorry for anyone who buys one of them and installs a HF radio in it.
73 Roland AH6RR
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Mobile Vehicle Database
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by K9ZF on March 1, 2005
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Add it as a new section to the equipment reviews.
Everyone can review their vehicles....
K9ZF /R no budget Rover ***QRP-l #1269
Check out the Rover Resource Page at: <http://www.qsl.net/n9rla>
List Administrator for: InHam+grid-loc+ham-books
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Mobile Vehicle Database
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by N1LEU on March 1, 2005
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I have a early 90's Buick and I only have a problem with Ignition noise on SSB and CW but that is easy to fix. Other than that I think Buick makes a comfortable way to go mobile.
Dave
N1LEU
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RE: Mobile Vehicle Database
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by KC9AGG on March 1, 2005
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94 olds cutlass...not bad some moinor ig noise....2003 impala...great...very quiet...almost no ig noise...no fuel pump noise.
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RE: Mobile Vehicle Database
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by W0FM on March 1, 2005
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OK, once again I am going to take Alan, KØBG's advice and buy only "pearl" colored vehicles. He's never steered me wrong before.
Who would have thought color would make a difference. :o)
Thanks Alan.
73,
Terry, WØFM
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RE: Mobile Vehicle Database
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by N0IU on March 1, 2005
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Don't you ever listen to Click and Clack the Tappet Brothers? They always ask what color the car is!
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RE: Mobile Vehicle Database
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by KB0USY on March 1, 2005
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Hey all:
I drive a Ford F-250 Power Stroke Diesel.This thing has been my worst ever noise in any radio.40 meters is the worst.I'm in the phase of bonding and grounding this and that.Beads here and more beads there.With hope I may over come this dilemma.If not I may buy a Cummins engine from a wrecked Dodge.Then put it in My Ford.Thanks
Steve
kb0usy in Kansas
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RE: Mobile Vehicle Database
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by WB4QNG on March 1, 2005
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I have a 78 Gremlin had a Regency cystal rig in it then ugraded to a Yeasu ft-227r memorizer. Never have had a noise problem with the car or the radio.
Terry
WB4QNG
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Mobile Vehicle Database
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by KC9FSH on March 1, 2005
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I drive a 94 saturn SL2.
I have had no interfence problems with my experiences on 2 meters and 70 cm. Except for when my alternator was starting to go out I heard a nice alernator whine. But after the replacement of the alternator all was good.
I have a dual-band antenna mounted on my trunk lid.
'73
KC9FSH
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RE: Mobile Vehicle Database
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by KB2CPW on March 1, 2005
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Saturn 98SL2 not bad except it "tx's" on 146.52 so the "hailing frequency" is out of the question.
2000 Honda Insight Hybrid, this car is a Mobile Hams Nightmare... No place to mount antennas (I removed the rear bumper and attached an L bracket and added a Lakeview license plate mount thus giving me two mounting points for aerials..
The car is an RFI generator when running, HF is all but impossible. While it is off, you can do your thing but you have to watch the aux battery as it is small and exhausts quickly.. On the VHF/UHF bands its very good though running or not.. Regards.. Richy N2ZD
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RE: Mobile Vehicle Database
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by AA4PB on March 2, 2005
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This just proves my point that there are so many variables. Two people complain that their Ford Rangers are so bad as to be unusable, even on 2M and the AM broadcast band. Since 1990 I've had a Ford Ranger and two newer Mazdas (same vehicle as the Ranger) and other than the fuel pump on the 1990 not had any significant noise problems. I've had HF and 2M in all of them. On my 2002 Mazda B3000 I don't get any fuel pump noise. A small amount of ignition noise can be heard on HF but the noise blanker on the IC706MkIIg easily takes care of it.
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Mobile Vehicle Database
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by KT0DD on March 2, 2005
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Just purchased a low mileage 2002 Dodge Cummins diesel quad cab 4X4. This is my second one, and I've ridden in several with HF rigs, with NO engine noise problems strong enough to worry about. There's a TINY bit more background noise in ths one, most likely due to the automatic tranny electronics, (I had manual tranny in my last one), but not enough to even begin to get concerned about. Now the overhead powerlines I pass under, well that's another story...hi hi...73
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RE: Mobile Vehicle Database
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by W9OY on March 2, 2005
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Good idea
I would like to see a similar database on consumer products that are noise sources as well, like TV's and lights including brand names and model numbers.
73 W9OY
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Mobile Vehicle Database
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by VE6KLJ on March 2, 2005
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Well, I note most people seem to drive Domestics. Heres my toss into the foray. I currently I drive a 1988 Bmw 528e, it doesn't make a beep, hiss or belch on HF, VHF, or UHF. Looks like the engine is already bonded to the chassis, the hood is bonded, trunk too. and it's all factory. the ECU is just above the glovebox, and althouhg it is in a metal box I wouldn't put a transmitter in the glovebox ;)
Lets see, from a radio installation point of view,
There is a lot of space under the rear seat for rigs like the 706, for those who like the radio on the dash, there's room. The ashtray up front by the gearshift is the same size as a 706 faceplate too!
I had a 75 BMW, and it required very little, I put some bonding on the hood and that was all.
Newer OBD type vehicls with that one-wire serial bus may be problematic, because generally that bus is not sheilded and you'll probably hear it on HF.
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Mobile Vehicle Database
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by W3JJH on March 2, 2005
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My 1998 VW New Beetle with a turbo diesel engine is good with respect to EMC. I have never heard noise in any of the HF, VHF, or UHF radios I've had installed. The in-dash factory radio will occassionally pick up the drive signals to the fuel injectors when tuned between AM stations, but it's quiet on FM.
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Mobile Vehicle Database
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by K2BKS on March 3, 2005
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I had a FORD 1998 Explorer and experineced the same kind of problem. I had noise no matter what I tried. I installed the same antenna on a Jeep Grand Cherokee and little or no noise. What noise was there a simple DC filter could resolve.
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RE: Mobile Vehicle Database
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by KC8VWM on March 3, 2005
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My Deathtrap 2000 is really noisy at times. I tried everything including removing the engine, the electrical system, the radiator, the windshield and even the heated seats.
However, I continue to have a noise problem and this floor pan is becoming very uncomfortable to sit on while operating my equipment.
Any suggestions?
73 Charles - KC8VWM
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Mobile Vehicle Database
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by KJ5XX on March 4, 2005
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I drive a 2001 Nissan Pathfinder with the antenna grounded to the frame with heavy copper plumbing tape. I have virtually no noise at all. I think having a really good ground is the key to eliminating noise and the heavier the ground strap the better.
73,
Ron - KJ5XX
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Mobile Vehicle Database
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by KK7TV on March 4, 2005
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I have an H2 Hummer and it is a great rig for mobiling The rear hatch holds both the vhf and hf antennas. I use a Icom 706. Ignition noise is gone with the NB on the rig. Great ground plane, just aim the front of the H2 to who you want to talk to.
Randy
KK7TV
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Mobile Vehicle Database
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by WA2JJH on March 6, 2005
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A "BUFF MOBILE"(decomissioned police car) is a good bet for mobiling.
One of course buys the Grand Fury with the "Police package" not stripped out. Get a detectives or plain clothes car to avoid looking like a double dork!
The "package" includes 2 heavy duty battaries, Premium oversized alternator. The wiring has less I squared R losses.
Some of the wiring goes direct to the battery. A good chunk of the radio wiring is intact. Also better suspension and brakes are used for high speed chases.
There are also ignition noise suppression in the wiring for the radio's. In fact if you get the schematic, you will see which lines are for the radio's and computer terminals.
The double battery and a larger alternator/generator
will allow you to run a mobile gallon(1000W out PEP).
Even If you run 100W, the beefed up electrical system may save you from being stuck on the road in a snow storm.
These cars sell dirt cheap. They never bother to strip out the improvements. Nobody in their right mind wants to buy one. The Old Grand Furies are large and very hard to park. They have zero appeal to the mean/average driving age (18-30).
There is also a very strange look you get from people. The Gang kids tend to leave Grand Furies alone.
They think a grey haired under cover cop owns this Anarchonistic vehicle.
The smaller Crown Victorias are now the main police car. However smaller town sherriffs still may have a grand fury as thr family car. It is very roomy. Oversize trunk.(great to bring back more junk from Dayton!)
Yes,you will not get a "BUFF MOBILE" with anything close to under 100,000 miles on the odometer. You also
can no longer be 40 miles per hour faster then the average car.
A dude I know from the hamfest circuit got an early 1970's Grand Fury for $3000! That car took major abuse
with loading snd unloading things from the hamfests.
We ran HF radio's and 440 rigs all day. The car would start in seconds, even in cold winter mornings.
The 2 Batts and extra large alternator was a nice
feature to have.
You can also go to these dudes that put in the huge stereo systems for wiring and noise suppression.
Depending how good the shop owner is in electronics,may
affect if you get electrical noise or not.
73 MIKE:)
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Mobile Vehicle Database
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by VE3II on March 6, 2005
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Greetings all....
I have been mobile for years, since the Atlas 210X days :) Anyhow, I have always driven a diesel vehicle and there is no noise from them.
I have heard reports concerning the new hybrid vehicles and they are apparently VERY bad for noise.
Diesel is the way to go....both for mileage and HF!!
73....Tom
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RE: Mobile Vehicle Database
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by WA6BFH on March 7, 2005
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WA2JJH, Mike I like your speeling errors! I may too think of obtaining an ex-cop car, aNARChonistic vehicle!
“They think a grey haired under cover cop owns this Anarchonistic vehicle.”
73! de John
PS
Too bad that the Cop’s don’t drive pick-up trucks!
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RE: Mobile Vehicle Database
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by KM5TC on March 7, 2005
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Hi, Owned Chrysler,Ply,Dodge the last several
years, no problems at all running HF/VHF mobile.
Just bought a 2001 Chev Impala, any issues with
noise in this GM car???
Mike/KM5TC
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RE: Mobile Vehicle Database
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by AB0RE on March 7, 2005
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"Saturn 98SL2 not bad except it "tx's" on 146.52 so the "hailing frequency" is out of the question."
I have previously owned a 1999 Saturn SL2 and it had this same problem. I think one time I had traced the noise to the fuse/relay box under the hood.
Often times now when I am driving and the radio gets tripped up on 146.520MHz, I can look out my window and see a late 90's Saturn S-series within a few carlengths.
73,
Dan / ab0re
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Mobile Vehicle Database
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by N1KHB on March 8, 2005
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I have only operated HF in two of my former vehicles and it is only HF that I speak about, since VHF and above is almost always operated in FM mode and rarely is there a problem with that mode in any vehicle.
The first vehicle was a Olds Cutlass and was reasonably quiet. The second was a '92 Mercury Grand Marquis. It was noisier than the Cutlass. After operating for a few weeks, I brought the vehicle in to the Ford dealer for some other unrelated reason and took the occasion to explain my HF operating plight. They were sympathetic and said that they would get back to me. Not long after that, I received a call from the dealer saying that they had the answer to my HF operating woes and to bring the car back for the improvement. I did so and what they did blew me away. They had a new improved engine computer that they were going to install for me for free under warranty (it wasn't really defective except for the noise - they just handled it that way for my sake). They did that and the noise improved immensely. Not enough for routine SSB mind you, but still a big difference. Since someone knowledgeable seemed to be behind all of this, I asked what else I might do on my own that would help the noise reduction further. The answer was that it was already as good as it would get and that any further efforts by me would be a waste of time. I lived with it as it was and eventually gave up on the idea of HF mobile for the time being anyway, but always remembered the fact that Ford really went out of their way to help.
Our current "fleet" consists of an '01 Subaru Outback and a '04 Honda Accord, both of which are high band FM equipped and both trouble free in that mode. Thinking about HF mobile again though. Any experiences out there with these models?
Joe N1KHB
n1khb@aol.com
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Mobile Vehicle Database
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by N1KHB on March 8, 2005
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Additional comments on HF mobile - My previous post didn't include the following: Most of the noise problems that I have personally encountered have almost always been with electric fuel pumps and engine/other computers. I have not encountered much in the way of ignition noise even though my engines have always been gasoline ones.
And on the subject of antenna feedpoint grounding - do yourself a favor and forget about outside-the-vehicle grounding such as the bumper to frame and all of that troublesome exterior nonsense. Instead, I have always fed my rear mounted HF antennas from inside the trunk from an autotuner with a nice clean and shiny ground point inside where it is protected from the elements and will STAY grounded without corrosion difficulties. I would sneak a feed wire through the trunk lid gasket using HV test lead wire. Never had any problems.
Joe N1KHB
n1khb@aol.com
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Mobile Vehicle Database
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by N1KHB on March 8, 2005
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Additional comments on HF mobile - My previous post didn't include the following: Most of the noise problems that I have personally encountered have almost always been with electric fuel pumps and engine/other computers. I have not encountered much in the way of ignition noise even though my engines have always been gasoline ones.
And on the subject of antenna feedpoint grounding - do yourself a favor and forget about outside-the-vehicle grounding such as the bumper to frame and all of that troublesome exterior nonsense. Instead, I have always fed my rear mounted HF antennas from inside the trunk from an autotuner with a nice clean and shiny ground point inside where it is protected from the elements and will STAY grounded without corrosion difficulties. I would sneak a feed wire through the trunk lid gasket using HV test lead wire. Never had any problems.
Joe N1KHB
n1khb@aol.com
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Mobile Vehicle Database
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by W4JLE on March 9, 2005
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I have an old Subaru GL Wagon with 290K miles on it. It is still the quietest car I have ever owned. Nothing generates any noise.
My 2003 Ford F-150 is a whole 'nother story. Never have been able to really get all the fuel pump noise out.
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RE: Mobile Vehicle Database
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by K3QS on March 10, 2005
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IC706 in a white Impala has no noise to speak of. I have used a few grounding straps here and there. Hamsticks on hb mount bolted under bumper.
The only trouble with mounting antennas on a white Impala, I can't make any time on the highway, because other drivers think I'm a cop and slow down.
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Mobile Vehicle Database
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by KG6TCV on March 14, 2005
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My 1992 Jeep Cherokee is great when it comes to the noise issue, I have none, I mean none what so ever.
I am running a Yasue FT-8900R and a great rig I might add coupled with a Diamond HV-7A Antenna.
On the other hand my 1991 GMC S-15 just like the Chevy S-10 has a little noise not to bad or anoying but there at any rate.
Good Luck & 73's
Steven KG6TCV
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RE: Mobile Vehicle Database
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by K8MHZ on March 15, 2005
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I did not read through every post. If this was mentioned before, my apologies.
How about a database of waveforms along with the location of the RFI (if found) and the correction?
These would be cross indexed with the car make and model, etc.
I think this would be a better resource as matching waveforms would most likely have some common sources that transcend make and model boundaries.
73,
Mark K8MHZ
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Mobile Vehicle Database
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by W9NET on March 16, 2005
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I have a 2004 Toyota Prius--a hybrid with electric motor-generators and high power inverter, and alot of computer power to coordinate everything. I use a 706 and a screwdriver mounted to the frame by a custom bracket. I have placed $150 worth of toroids on everything I can get to, and common mode filters on all the rig's connections. I have bonded everything together with braid, and wrapped some of the car's cabling with grounded copper tape. I sprayed the electronics boxes that I could get to with RF-shielding paint and grounded the boxes. Tailpipe is grounded. I also use an MFJ phasing-type noise reducer. With all this, using this car on HF is impossible. I'll try to keep chipping away at shielding and copper taping cabling, but the computer and inverter noise out of this car is TERRIBLE. I do not cause any probs with transmitting to the car. What gets me is that there is NO broadcast band interference to the car radio, or on 160 meters. Regards, John
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RE: Mobile Vehicle Database
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by KG6IIQ on April 13, 2005
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i have the same problem do you have any help bob the truck is a 1999 f250 and on 20 the noise is marginal but on 40 it is not and tx on 40 ( 7190to 7220) cause the engine to miss radio is 706 antenna high s. thanks hoh cooke kg6iiq@aol.com
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eHam.net server downtime
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