FRS Radio - More Range.AVI

A quick video showing how to get the most range out of any hand held 2 way radio. This applies to FRS "Family Radio Service" radios, used as the transmitting source in this video, as well as any portable radio used by Police, Fire, EMS or Amateur Radio.

Category:

Education

Tags:

• FRS Radio
• Family Radio Service
• Police Radio
• Ham Radio
• Amateur Radio
• Radio Range
• Transmitting distance
• Fluke
• Fluke Meter
• Signal Strength
• Field Strength
• 2 Way Radio
• RF Detector
• Diode Detector
• FRS
• Radio
• Bug Out
• Bug Out Communications
• Radio Communications
• Emergency Communications
• Bug Out Radio

[kgradio]

In the engineering world a decade just means something times 10. A geek would say "an order of magnitude". Anyway cross polarized antennas see a 20 db loss which works out to the same signal strength as multiplying your original distance by 10 using the formula 32.45 + 20 Log (Frequency MHZ) + 20 Log (Distance in Kilometers)

[kgradio]

Thanks for watching. The 26 Mile range that some claim is most likely free space path loss, 32.45 + 20 Log F + 20 Log D, where F is frequency in MHz and D is distance in KM. I would imagine that 2 sky divers jumping out of airplanes separated by 26 miles could talk on their way down, but here on earth with it being a curved surface with trees and buildings and such, a mile can be expected. Perhaps several miles on a large lake or open field.

[pveg65]

Love Fluke meters; they are the best !

[kgradio]

@pveg65 Yeah Fluke meters rock. a little expensive for one who just needs to check a battery of test a lamp once a month; but for anyone interested in being a serious player of electronics I would avoid the cheep Walmart meter and spend some green on one of the Fluke meters in the $150.00 range.

[peterkim1999]

Very informative, thank you. I also visualize it as similar to a light bulb that sends out lights on side ways, if you tilt it, then those lights will cut vertically up down or diagonally, not towards the receiver.

[kgradio]

@peterkim1999 Yeah, you could think of it as light waves, that's how polarized sunglasses work, they pass uniform light rays but block the scattered rays which cause the glare that makes things look unclear. Fresh water fishermen like polarized sunglasses because they can see through all the glare caused by the sun hitting the surface or the water and reflecting off at odd angles.

[radiosification]

haha "20db is a decade in distance" Oh I thought a decade was a measure of time. Maybe you meant a light decade?

[roybofmn]

Excellent information for the inexperienced user. Great way to demonstrate your point. Have you tried this in the field and at what distances?  Thanks again.

[wildcat2488]

how or where do i get info on building that R/F detector you build .thank you in advance

[conrad13579]

You know it seemed like a minor detail about holding the 2-way radio, but significant nonetheless! great video. thanks!

[SuperTechieJ]

Fascinating.

Do you ever mess around with Amateur TV?

[oregonninetwentynine]

Ive been involved with radio stuff for about 4 years now and using the regular blister pack walkie talkies in the field - I have no idea how they can advertise getting 26+ miles with them. But this is an awesome video, I definitely learned a bunch!