Noise in your receiver

bored silly · Aug 3, 2017

rabbiporkchop said: ↑

What we normally call static is more properly known as contact electrification caused by the triboelectric effect. Ungrounded materials can become electrically charged when they contact another material and then become separated. While in contact, or “adhered,” electrochemical charges move between the two objects, and when separated, there can be an imbalance of electrons between them, with one object having more and the other having less. Once the surface of an object is charged, coming into contact with a non-charged object can cause a sudden discharge of the static. Essentially, it’s a tiny lightning bolt. If you’ve ever noticed that you can get shocked when climbing out of your car after a drive, it’s because the car’s metal shell has built up a charge from rubbing with the passing air. (Air can act as an electrically charged material, too.) No doubt, you’ve noticed that static tends to be more prevalent in the winter when air is dry. This is because moisture in the air helps electrons to dissipate more quickly so less static charge can build up.
Airplanes use static dischargers to mitigate this effect. Static discharger - Wikipedia

I'm sure you have noticed cars and trucks using these as well...

This partially explains why some folks have more noise than others.

Static is everywhere. Check this out.

Click to expand...

If ya have no NOISE IN YER RECEIVER YOUR RADIOS NOT WORKING TAKE IT BACK AND GET A REFUND....

bored silly · Aug 3, 2017

rabbiporkchop said: ↑

What we normally call static is more properly known as contact electrification caused by the triboelectric effect. Ungrounded materials can become electrically charged when they contact another material and then become separated. While in contact, or “adhered,” electrochemical charges move between the two objects, and when separated, there can be an imbalance of electrons between them, with one object having more and the other having less. Once the surface of an object is charged, coming into contact with a non-charged object can cause a sudden discharge of the static. Essentially, it’s a tiny lightning bolt. If you’ve ever noticed that you can get shocked when climbing out of your car after a drive, it’s because the car’s metal shell has built up a charge from rubbing with the passing air. (Air can act as an electrically charged material, too.) No doubt, you’ve noticed that static tends to be more prevalent in the winter when air is dry. This is because moisture in the air helps electrons to dissipate more quickly so less static charge can build up.
Airplanes use static dischargers to mitigate this effect. Static discharger - Wikipedia

I'm sure you have noticed cars and trucks using these as well...

This partially explains why some folks have more noise than others.

Static is everywhere. Check this out.

Click to expand...

rabbiporkchop said: ↑

What we normally call static is more properly known as contact electrification caused by the triboelectric effect. Ungrounded materials can become electrically charged when they contact another material and then become separated. While in contact, or “adhered,” electrochemical charges move between the two objects, and when separated, there can be an imbalance of electrons between them, with one object having more and the other having less. Once the surface of an object is charged, coming into contact with a non-charged object can cause a sudden discharge of the static. Essentially, it’s a tiny lightning bolt. If you’ve ever noticed that you can get shocked when climbing out of your car after a drive, it’s because the car’s metal shell has built up a charge from rubbing with the passing air. (Air can act as an electrically charged material, too.) No doubt, you’ve noticed that static tends to be more prevalent in the winter when air is dry. This is because moisture in the air helps electrons to dissipate more quickly so less static charge can build up.
Airplanes use static dischargers to mitigate this effect. Static discharger - Wikipedia

I'm sure you have noticed cars and trucks using these as well...

This partially explains why some folks have more noise than others.

Static is everywhere. Check this out.

Click to expand...

Good post there I must say.

volvo244t · Aug 3, 2017

I have graphite in my steer hubs.

My Qualcomm unit put a lot of noise out. Plugging anything into the usb port on the display interface unit helped but did not eliminate that noise.

Then the company switched to peoplenet. That system doesn't seem to put out any noise.

bored silly · Aug 3, 2017

volvo244t said: ↑

I have graphite in my steer hubs.

My Qualcomm unit put a lot of noise out. Plugging anything into the usb port on the display interface unit helped but did not eliminate that noise.

Then the company switched to peoplenet. That system doesn't seem to put out any noise.
Click to expand...

Ferrites Dx Engineering

rabbiporkchop · Aug 12, 2017

wolverine11 said: ↑

Is it against Fcc regulations to use Fm mode on 11 meter?
Click to expand...

Only where the FCC has jurisdiction.

rabbiporkchop · Aug 12, 2017

I wish I could have heard what it was like to be listening on the HR 2510 on the receive end to see how much noise he had in his receive. Even though he was sitting in the same parking lot he was unable to hear the guy I was talking to after that guy dropped down into the canyon on the far side of a mountain with three mountains in between us.

Meteorgray · Aug 12, 2017

So how does the signal get past mountains? The signal obviously can't be line-of-sight.

rabbiporkchop · Aug 12, 2017

Meteorgray said: ↑

So how does the signal get past mountains? The signal obviously can't be line-of-sight.
Click to expand...

I have no idea. Hopefully somebody with a scientific background could figure it out. This is a normal thing for me though.
It was just some random guy with a stock radio 16.8 miles away at his furthest distance according to the plotting website.

Meteorgray · Aug 12, 2017

Wow. Maybe it was bouncing off a lucky reflector or something that lined up just right? I wonder if it is repeatable, i.e., can it be done on a reliable basis?

lilillill · Aug 12, 2017

rabbiporkchop said: ↑

I have no idea. Hopefully somebody with a scientific background could figure it out. This is a normal thing for me though.
It was just some random guy with a stock radio 16.8 miles away at his furthest distance according to the plotting website.
Click to expand...

What website are you using to get those elevation profiles? Is it as the crow flies or will it do elevation profiles for interstates?

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