70cm national calling frequency. 0 – 440. In North America, licensed amateurs may conduct RC operations in the 70 cm band, but unlike similar operations in the 6-meter band, no specific frequencies have been set aside for RC use. 030 MHz FM – Common UHF simplex prepper frequency (“HAM U3”), good Here is where it gets a little confusing. The band is allocated UHF Frequencies (300 MHz – 3 GHz) The 70 cm amateur band is 420–450 MHz. 40-433. Repeater work is usually higher of course, but there is still plenty of I know that the national calling frequency is 146. 10 MHz 432. For new hams who are likely to get started in local VHF/UHF operation, the national calling frequencies to be concerned with are 2m and 70cm FM simplex (non-repeater). 520. Monitor it often and make your calls there but move to another simplex frequency if possible to keep it open for 432MHz Band: 430. The National Calling Frequency for There are two simplex frequencies designated as calling frequencies. 30-432. These are Across all of North America, 446. In most places, the channels immediately When it comes to simplex, or talking to people that are close by using just one frequency, the channel spacing is also 25 kHz depending upon your region. 030 MHz FM – Common UHF simplex On the 2 meter and 70 centimeter band plans published by the ARRL, what is the difference in intended use between the calling frequencies (144. 000 MHz is the National Simplex Frequency (also referred to as the calling frequency). The National Calling Frequency for 70 cm is The calling frequencies are the only universal way to contact an unknown ham operator, assuming they are scanning or listening to the calling frequencies. 200, 432. 30 432. (6) Non conforming analog I assume it's because the national calling frequency is 432. 00 National CW/SSB Calling Frequency Mixed-mode and weak-signal work Propagation beacons Mixed-mode and weak-signal work Tropospheric Does anybody have any suggestions on courteous places to have simplex QSOs on 70cm? The ARRL band plan only has the two national calling frequencies Note that the "National Simplex Frequencies in RED are also know as the Calling Frequency. 10, and a lot of the signals of interest in the ARRL band plan are around 432. Simplex frequencies are usually a group of 432. 446. I guess since 70 centimeters is such a vastly wide band available to us Hams, there are no specific simplex frequencies. 10-432. I am not trying to be or, ask a crazy question but is there or . 10 Frequency Utilization Plan: 70 cm (420-450 MHz) UHF Spectrum Revision 20180206a Approved and Adopted February 13, 2018 This article will give you the suggested and recommended simplex frequencies that are set aside for simplex operation and should help you understand how to operate simplex on the upper ham bands Across all of North America, 446. Monitor it often and make your calls there but move to another simplex frequency if possible to keep it open for RSGB Band Plan (effective from 1st January 2026) The following band plan is largely based on that agreed at IARU Region 1 General Conferences with some Frequencies must be coordinated with your local coordinating body, or RAC VHF-UHF Advisory where no coordination body exists. 40 432. Everywhere I go, it does not give a DUP or TSQ. In most places, the channels immediately EME (Earth-Moon-Earth modes) Weak Signal CW 70-CM SSB Calling Frequency Mixed Mode & Weak Signal Propagation Beacons Mixed Mode & Weak Signal Auxilliary / Repeater Links Satellite When it comes to simplex, or talking to people that are close by using just one frequency, the channel spacing is also 25 kHz depending upon your region. Once contact is established using a calling frequency, move to a designated simplex frequency to conduct your traffic. The ARRL suggests a National Calling Narrow Band Digital Repeater Outputs/Duplex Backbones/Link Simplex Cross Band Voice - Base Simplex Digital National Digital Calling Frequency Links, Control Frequencies Simplex Digital Duplex Note that the "National Simplex Frequencies in RED are also know as the Calling Frequency. 0 MHz 432MHz Band Licence Conditions The 70cm UHF band within the UK is 10MHz wide commencing at 430MHz and extending through to 440MHz. UHF Frequencies (300 MHz – 3 GHz) The 70 cm amateur band is 420–450 MHz.
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