100 watts from your cigarette lighter?

Discussion in 'Amateur Radio News' started by WJ6F, Jul 29, 2020.

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  1. W1YW

    W1YW Ham Member QRZ Page

    The units does what it says it does.

    Chances are if you are running, say, 50 watts , you might not need it. If you are trying to run 150 watts you are pushing the heating on the wires, and spiking the fuse.

    So is 75 watts for a second or so on CW, with ignition noise filtering, helpful?

    That's your decision.
    WA6FX likes this.
  2. KF0G

    KF0G Ham Member QRZ Page

    just tap into the overahead lamp socket
    the photons make the RF go farther, especially at night !!
    it's traue i heard it from Tesla myself
    WA8FOZ likes this.
  3. KF0G

    KF0G Ham Member QRZ Page

    from crutchfield dot com subwoofer amp capacitor info page
    Q: How do I hook up a capacitor?

    A: If you don't have the instructions that came with your capacitor, you should know first off that a cap can be dangerous; it can charge and discharge so much power so very quickly that it can weld metal objects, like tools and jewelry, and melt its own insides out. A new cap comes completely discharged, so it's safe. A resistor or wired light bulb usually is included in the package. Wiring the bulb or resister across the cap's terminals allows the capacitor to discharge slowly and safely. The same bulb or resistor, wired differently, also gets used to charge up the cap safely.

    As in all car electronic installations, start by disconnecting the ground cable from the car battery. In this installation, also take out the in-line fuse on the amp's power wire next to the battery.

    A capacitor should be mounted as close to the sub amp as possible using the shortest wires possible. This is so the extra charge doesn't have far to go to get to the amp quickly. Make sure the cap gets mounted securely and won't become a dangerous flying object in the event of an accident.

    A capacitor has two poles: a positive and a negative. They should be clearly marked on the capacitor. The positive connects to the same positive power lead that goes to your sub amp's positive, 12 volt, connection. Use the same gauge wire as the amp uses for its power.
  4. KA4TMT

    KA4TMT XML Subscriber QRZ Page

    I worked as a mechanic at Toyota/Lexus. Every other day a car came in/Towed in with burned up wiring from, stereos, car alarms and other crap hooked and spliced to the power ports. I don't even want to get into other stereo shop butchery, I had a car come in with the aftermarket alarm spliced to the passenger side airbag system! Burn out one of the half dozen smart boxes in a new car and your wallet will be a lot lighter. Drilling a small hole and grommet sure is cheaper than a voltage conditioner and could keep you from being stranded by the side of the road because of an electrical failure. Its your car so it your choice. So maybe you can run 100 watts HF from your cigarette lighter, you can also do extended burnouts with your donut spare tire, but why?
    W7EDC, N0TZU, N3AB and 2 others like this.
  5. W1YW

    W1YW Ham Member QRZ Page

    Today's cars are all about saving weight. From getting rid of the spare tire to thinning/doing away with wiring...every ounce asssumes to count.

    Surely you've seen cars on fire from electrical wire overheating...That didn't happen 60 years ago or was very rare...
    WE4B likes this.
  6. KA4TMT

    KA4TMT XML Subscriber QRZ Page

    You are correct Sir! I grew up as a kid working on cars from the 60's and early 70's would love to go find a 1960s car and look at what gauge wiring was used for the cigarette lighter just to see it with my own eyes again! A lot of new cars you are not supposed to splice the wiring even if you could because it is so thin, you just order that new section of harness!
  7. KF5LJW

    KF5LJW Ham Member QRZ Page

    60 years ago, the only electronic item that could be found in an auto was an AM radio that sounded like crap with a 5 watt PA. Lot like ham radio today, stuck in 60 year old tech.
  8. W1YW

    W1YW Ham Member QRZ Page

    The point is that cars have become so constrained for non-manufacturer add-ons (including ham radio) that its almost dangerous to add anything on electronically"-)

    I wanted to add a CD player to my ATS...Cad dealer made we wait until a 'specially trained technician' was in the New England area . They had a weird headed screw driver to discombobulate the glove compartment....and didn't want a third party messing with it.
  9. KF5LJW

    KF5LJW Ham Member QRZ Page

    I agree, but cars today are greatly improved in all areas, and much of it has everything to do with electronic controls. I am 62 and as a teen and into my 20's liked the muscle cars from late 60's and 70's and put monster size stereos. That GTO and Mustang I had always had problems and got terrible gas mileage. Today my Lexus will run circles around the vintage muscle cars, gets 30 MPG, 400 watt stereo, ventilated seats, and luxury ride wrapped in leather. Like the last few cars I have owned never went into the garage for repairs. Just routine maintenance.

    Still like the old muscle cars, how they look, but require a lot of work. The muscle cars of today are just awesome in performance and luxury. The irony is today is some the fastest production vehicles are EV's.
    KD2TTM, WA8FOZ, K8XG and 1 other person like this.
  10. N1IPU

    N1IPU Premium Subscriber QRZ Page

    Agreed. There is so much one needs to do to run mobile HF in a vehicle especially modern vehicles. I run my rig from two golf cart batteries in the back along with a transfer controller for them. Yes its not easy to route 2 ought wire in most vehicles but it can be done. Add in all the grounding like exhaust and specific engine components. I upgrade my alternator also. Current one is 310a. That usually gets forgotten but apply a big load on a stock one and you will soon hear some noise and soon have to replace it. I get great signal reports running a screwdriver and can even hear the same stations. Without grounding I could not. I know people who have tried the simple route and none were successful. Promoting such shortcuts is a disservice.

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