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Thread: Group 2-Meter Simplex Frequency

              
   
   
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  1. #1
    Join Date
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    Default Group 2-Meter Simplex Frequency

    Let's decide on a 2-meter simplex frequency for our group. We have been using 146.580 and so far it has worked okay, but we haven't been on the air that much. The thing is that 146.58 is the most popular simplex frequency around. Sooner or later we will run into problems sharing it with other users. A different frequency would be more available as well as more private. Any ideas or suggestions? Do you know which frequencies other northwest backroad, overland, off-road groups use? We should probably choose one of our own so we don't interfere with another group.

  2. #2
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    Oregon Band Plan

    Looks like 2-meter Simplex is: 146.420 - 146.600 FM Simplex

    I think Oregon is normally 15 khz spacing (not sure)

    I think Washington and Idaho is 20 khz spacing


    Western Washington Plan

    Looks like 2-meter Simplex is: 146.420 - 146.580 Simplex



    Here's an interesting spacing thread at QRZ Forums


    AlanH may have some input on this.

    Mick
    KE7PIT

  3. #3
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    Quote Originally Posted by RidgeRunner View Post
    Oregon Band Plan
    Looks like 2-meter Simplex is: 146.420 - 146.600 FM Simplex
    I think Oregon is normally 15 khz spacing (not sure)
    I think Washington and Idaho is 20 khz spacing
    Western Washington Plan
    Looks like 2-meter Simplex is: 146.420 - 146.580 Simplex
    Here's an interesting spacing thread at QRZ Forums
    AlanH may have some input on this.
    Mick


    That's close, Mr. Ridgerunner, but there are twice as many 2-meter simplex frequencies available than you listed.

    Oregon, Washington, Idaho and British Columbia use 20 kHz spacing between allocated frequencies within the 2-meter band plan. California uses 15 kHz spacing. Allocated frequencies for Pacific Northwest states are as follows:

    146.42
    146.44
    146.46
    146.48
    146.50
    146.52
    146.54
    146.56
    146.58
    146.60*

    147.42
    147.44
    147.46
    147.48
    147.50
    147.52
    147.54
    147.56
    147.58
    147.60*

    *Not available in Washington

  4. #4
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    Default

    The band plan I have says 15 khz spread............I guess nobody said it was gonna be easy.
    N7GS

  5. #5
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    Quote Originally Posted by Jerry View Post

    That's close, Mr. Ridgerunner, but there are twice as many 2-meter simplex frequencies available than you listed.

    Oregon, Washington, Idaho and British Columbia use 20 kHz spacing between allocated frequencies within the 2-meter band plan. California uses 15 kHz spacing. Allocated frequencies for Pacific Northwest states are as follows:

    146.42
    146.44
    146.46
    146.48
    146.50
    146.52
    146.54
    146.56
    146.58
    146.60*

    147.42
    147.44
    147.46
    147.48
    147.50
    147.52
    147.54
    147.56
    147.58
    147.60*

    *Not available in Washington
    Looks like that gives us a good selection to choose from.

    Thanks, Jerry.

    Mick
    KE7PIT

  6. #6
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    I will be running 147.460 MHz Simplex to see how it works out in my corner of the world. If I hear no other stations, harmonics or intermod it might pan out to be a good group frequency. If anyone else cares to monitor 147.460 please do so and let us know the results. I would like to know how it compares to the 146 MHz simplex frequencies along the I-5 corridor, i.e. the heavily populated cities in the Willamette Valley and Puget Sound; also in the vicinities of Spokane and Boise.

  7. #7
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    Default

    I'll give 147.460 a try down here and check it out. I don't spend much time in my truck but I'll let you know.

    Mick
    KE7PIT

  8. #8
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    Exclamation Default 2m Frequencies

    It has been a while and I do not see a conclusion in this thread. I like to see a common set of simplex channels programmed for all the VHF operators. This can save some time and confusion.
    This list has been posted for eight years now.

    4WDTrips - Default 2m Frequencies for 4WDTrips

    I have programmed a set of frequencies researched by quite a few others. I keep this list on all my radios.

    4WD 1 - 146.430
    4WD 2 - 146.460
    4WD 3 - 146.490
    4WD 4 - 146.580
    4WD 5 - 147.420
    4WD 6 - 147.450
    4WD 7 - 147.480
    4WD 8 - 147.540
    4WD 9 - 147.570

    Two trips we have used 4WD2 as our primary. The trip planned for late June will use 4WD4

    Not all will work in all band plans, but there should be more than one that will work in each. That gives you a back up in case there are interference issues in the trip location chosen.
    Having this set ready to go, we can easily move to another channel quickly if traffic is unbearable. It also keeps some anonymity if we need to change channels in unfamiliar areas.
    "Are there any hillbillies up there?" , "Well there's some ain't never seen a town before."
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  9. #9
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    Default

    That's a "way out" list of frequency spacing, HenryJ. Part of it is 30 kHz like in Ontario, Canada and Clark County, NV (Las Vegas area). Being 30 kHz apart it also encompasses every other channel of the California-type 15 kHz spacing. The other part is 20 kHz spacing like the band plans in Oregon, Washington, Idaho, Montana, Utah, most of Nevada and British Columbia. The main freq they skipped on that list was the 2-meter National Call Channel, 146.520.

    It has not been mentioned eleswhere in this thread, but the Pacific Northwest bandplan for 440 (70 centimeter) simplex frequencies is:

    445.800
    445.825
    445.850
    445.875
    445.900
    445.975
    446.000 National Call Frequency
    446.025

    It really doesn't matter which frequency we use unless people are scanning frequencies within a certain band plan and/or unless someone on a base station is trying to reach us for an emergency contact. That happened to me on a 4x4 run. I had turned off the scan function and my son-in-law, a ham, was trying to reach me about my wife being rushed to the hospital. Since then I usually leave my radio scanning established bandplan frequencies.
    Last edited by Jerry; 05-29-2011 at 03:51.

  10. #10
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    Quote Originally Posted by Jerry View Post

    Oregon, Washington, Idaho and British Columbia use 20 kHz spacing between allocated frequencies within the 2-meter band plan. California uses 15 kHz spacing. Allocated frequencies for Pacific Northwest states are as follows:

    146.42
    146.44
    146.46
    146.48
    146.50
    146.52
    146.54
    146.56
    146.58
    146.60*

    147.42
    147.44
    147.46
    147.48
    147.50
    147.52
    147.54
    147.56
    147.58
    147.60*

    *Not available in Washington
    Since I'm in the process of programming my radio, I thought I might bring up an old post.

    Looking at the 2012 Washington State 2m Band Plan at https://www.wwara.org/WWARA_BAND_PLAN_2012_07_08.pdf I noticed that it lists the simplex frequencies at 146.52-146.58 and 147.52-147.60 which is a different range as posted earlier.

    With this in mind, should I just program in starting at 146.52 with 20 kHz spacing?

    Or do people just operate on whatever frequency falls within this range?
    Last edited by Steve; 04-04-2015 at 09:16.
    Steve

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