Tentative Radio Frequency Plan for Hayden Island FRS/GMRS ...



Tentative Radio Frequency Plan

for Hayden Island FRS/GMRS radios

I. Introduction

II. About the BaoFeng and Motorola FRS/GMRS radios

III. About the BaoFeng ham radios

IV. Developing a band plan between different FRS/GMRS radios and ham radios

V. Programming the BaoFeng ham radios to be compatible with Motorola and BaoFeng FRS/GMRS radios, as well as adding relevant ham and emergency freqs.

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I. Introduction. The purpose of this paper is to develop as frequency plan for Hayden Island. The goal is to enable common FRS/GMRS radios to talk to BaoFeng ham radios using a standard channel plan. The idea is to have FRS/GMRS Channels 1-22 (on each of the different ham and family radios) use the same frequencies. Sam Churchill now has 2 Motorola Talkabout FRS/GMRS radios (1 with 14 channels, 1 with 22 channels) as well as 6 BaoFeng BF888s FRS/GMRS radios (each with 16 FRS/GMRS channels). He also has 2 BaoFeng UV5R ham radios and 2 BaoFeng UV-82 ham radios (virtually the same radio with improved firmware in the 82). The UV5R radios can be programmed for 125 channels and cover both the FRS/GMRS radio frequencies (used by the BaoFeng and Motorola family radios) as well as 2 meter and 440 Uhf ham frequencies. This totals 12 different radios. If we assign all the radios the identical first 12 channels, then we should be able to talk to each other and assign different working groups (at a later time). The 4 different ham radios could also coordinate using identical 50-100 ham radio and emergency frequencies. That would allow us to print a frequency chart.

II. BaoFeng and Motorola FRS/GMRS radios are similar. Many FRS/GMRS radios use the same 22 frequencies, but may assign those channels different channels. Channels 1-6 and 15-22 are 1 watt. They require a GMRS license. Channels 8-14 are .5 watts each and are FRS (no license) frequencies. The chart below, taken from the Motorola Talkabout Manual, is a possible frequency coordination guide for the first 22 channels of all the radios.

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The BaoFeng 888s radios are also FRS/GMRS radios (not ham radios). They have 16 programmable channels. Here is their channel layout from the factory:

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As you can see, the Motorola and BaoFeng assign different frequencies to the FRS/GMRS channel line up. Maybe that’s okay. The best bet would be to program the 2 Motorola radios to match the 6 BaoFeng FRS/GMRS channel line up, if that’s possible. Otherwise the Motorola radios are just spares.

III. The BaoFeng ham radios include two BaoFeng UV5R ham radios and two BaoFeng UV-82 ham radios. They are essentially identical. They can be assigned 125 channels each. Here is the manual for the BaoFeng UV5R, the BaoFeng UV-82 and the BaoFeng 888s (FRS band):

















Specs: The Baofeng UV-82 handheld transceivers sport 2m and 440 as well as wide band receive. It has the new 2.5KHz step size and large capacity battery.

Frequency Range: 136-174 & 400-520MHz

Dual Band, Dual Display, Dual Frequency,Dual Standby

Output Power: 5 / 1Watt

128 Storage Channels

50 CTCSS and 104 CDCSS

Vox

1750 Hz Burst Tone

FM Radio (65.0 MHz – 108.0 MHz)

LED Flashlight

Large LCD Display

High / Low RF Power Switchable

Wide / Narrow 25KHz / 12.5KHz Switchtable

Emergency Alert

Low Battery Alert

Battery Saver

Time-out Timer

Keypad Lock

Monitor Channel

Channel Step: 2.5 / 5 / 6.25 / 10 / 12.5 / 25 KHz

PC Programming

1800ma Battery

IV. Developing a Band Plan.

CHIRP is a FREE cross-platform, cross-radio programming tool. It works on Windows and Linux (and MacOSX with a little work). It supports a growing list of radios across several manufacturers and allows transferring of memory contents between them. This could expedite a band plan between different radios.





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- Sam Churchill

- schurchill@

- 1503 North Hayden Island Dr #131

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