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The typical short stubby NMO antenna (pepper shaker) is UHF only and fairly narrow band, like if tuned for GMRS they won't cover 440 amateur, etc. They work a little worse than a 6" whip and even though advertised as 3dB gain, they have less than 0dB gain. They will not work on VHF or if they do...

Here is another free cabin probably on the same loop. I stayed in this one about 2mo ago and it was great. It had running water from a spring, battery power with solar, hot water heater, shower, full kitchen and it was great. We wanted the Briggs cabin next door which had more amenities...

Here is one of my trunk lip NMO mounts on the drivers side hood with a 6" spike for GMRS and 440 amateur. This spot provides a better ground plane than the circled spot in the first post and doesn't require a hole. Mounts with coax are available from Larid, larson, PCTEL, Tram and others with...

The person you talked to is incorrect and probably a salesman. If the heater wire spacing is wide it can sometimes work when put between the wires but when its right over the wire the RF couples to the wire the same is to the antenna base. I tested some of the very first window glass antennas...

Just get an NMO trunk lip mount and stick on the hood right next to the hood hinge. It works great and doesn't require any holes. You will have the full hood as a ground plane plus a little from the metal cowl behind it. I also took off the curved side pieces and lined them with aluminum tape...

Your not supposed to use through the glass antennas on windows with heater wires embedded in the glass. The antenna will probably tune up but the coupling box will couple RF to both the whip and heater wires, making them part of the antenna. The power will be split between the whip and the...

I tightened my 2021 steel steering box by about 1/8 turn and it was a good improvement. I had to heat the area around the allen set screw with a propane torch to loosen things, probably Loctite, then it went just like some Youtube videos.

The antenna will not know you made any change but the coax shield at the antenna mount does go back to the radio chassis and can influence the ground on that. I suppose you could easily disconnect the new antenna ground leaving the radio ground the only change to see which one did the trick.

The kayak, the old motorboat or the lodge? Three different goals.

Interesting. As I mentioned I've had several radios in and out of my JT fed from several power sources with zero alternator or spark plug noise. It could also be some radios are on the light side of input DC filtering and that radio is just more susceptible to any ripple on the DC input. I also...

If you can get someone to receive your radio and there is no alternator noise on transmit then its more than likely a difference in ground potential between the radio chassis and remote control head. Is the radio bolted in its metal mount and the mount is screwed into sheet metal? Is the remote...

Do others hear the alternator whine on your transmission or is it just on receive in your radio? You can do a quick test by moving just the ground wire from the battery to a nearby ground point under the hood for a test.

You should not have any alternator whine in a new JT and they don't have any spark plug noise that I have been able to detect, even on CB or amateur HF. I assume the noise goes away when the engine is off? You can temporarily run the radio from a separate isolated battery to see if noise is...

Ground loops can cause electrical noise like alternator whine but not wrong radio traffic coming through a radio, that would be in the radio itself.

If money wasn't an issue...... I would buy back my old '96 1/2 HUMMER and stick a new 6.6L turbo Duramax engine/Allison transmission in, then a color matched slant back camper. Boom, done!

An antenna is only aware of the sheet metal ground plane below it and continuity back to the battery is irrelevant. If you had a GMRS whip on a 12" dia pie tin on the end of a broom stick, it would be happy. For HF its a different story due to the longer wavelengths and you would want as much...

My city streets we have low "whoop de doos" at many intersections for water drainage and my Mojave makes clunking noises over those if I'm doing more than about 10mph. I believe its the bump stops as the noise and feeling only comes from the front. I've done various off roading and don't recall...

For GMRS a 12" square or round piece of sheet metal is an adequate ground plane. For VHF like 2m or MURS about 3ft and for CB much more.

Stock Mojave is fine. There was a spot called "chicken rock" that was a bit treacherous but its been blasted out and not that bad now. You can look on Youtube for videos of the old path. I don't think any full size truck with extended cab could make it through that spot now but a JT just eats...

Yup, thought it looked familiar. Probably not too far from where these were taken on the way to a 7300ft spot that overlooked both Death Valley and Panamint Valley. Instead of tent camping we got into the Stone Cabin at the early part of the loop.