Let’s All Get Together

For quite some time, we have considered establishing standard simplex frequencies for use within the CAUHF Group (and for anyone else who wishes to play along with us).  All of these frequencies fall within the ARRL Band Plan for VHF and UHF.  Here’s what we’ve come up with thus far.  NO TONE on any simplex frequency.  During special events, disaster drills, etc., we can refer to these as “tactical channels”.  These frequencies are taken from a similar plan developed by the New York City Amateur Radio Emergency Communications Service (ARECS).  They came up with more than 10 and they use tones, but these 10 should enough for us, at least for now.  Program all of these simplex frequencies into your mobile radios and HT’s.  You never know when you might need them.

VTAC Channel VHF UTAC Channel UHF
VTAC-1 National Simplex 146.520 MHz UTAC-1 National Simplex 446.000 MHz
VTAC-2 146.535 MHz UTAC-2 446.025 MHz
VTAC-3 146.550 MHz UTAC-3 446.050 MHz
VTAC-4 146.565 MHz UTAC-4 446.075 MHz
VTAC-5 146.580 MHz UTAC-5 446.100 MHz

Some folks just pick any old frequency for simplex but that really is not wise.  If you are not careful, you can accidentally pick a repeater frequency.  Also, you must remember that VHF simplex frequencies need to be at least 15kHz apart and UHF simplex frequencies need to be at least 25kHz apart (as shown above) to avoid interfering with each other.  We started with the VHF National Calling Frequency as the baseline at 146.520 and, for each succeeding “channel”, we went up 15kHz.  We also started with the UHF National Calling Frequency as the baseline at 446.000 and, for each succeeding “channel”, we went up 25kHz.  At this point, this is merely a proposed plan–just a suggestion.  Let’s hear your thoughts.

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Posted in Articles by Members, UHF and VHF
DMR Repeater Donation

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Donations are now being accepted via PayPal for purchase and installation of our new Motorola SLR 5700 DMR Repeater.

Our goal is $2500.00.  All donations are appreciated, small or large.  For more info, see article.

If you prefer to send a check, please mail it to the address at the bottom of this page.

Main Repeaters

AR Links System
443.200 (114.8) – LIttle Rock
145.490 (114.8) – Little Rock
444.700 (114.8) – North Little Rock
443.600 (no tone) – Future DMR Frequency
147.120 (131.8) – Haskell
444.675 (114.8) – Arkadelphia NEW
443.500 (136.5) – Malvern NEW
145.330 (114.8) – Morrilton
146.685 (141.3) – Dardanelle (Russellville)
146.745 (107.2) – Bradford
146.640 (131.8) – Benton OFFLINE

Stand Alone
146.775 (162.2) – Little Rock, Shinall
444.850 (114.8) – Little Rock, Downtown
443.000 (100.0) – Little Rock,
Markham & University BACK ONLINE

For a complete list, click on the AR Links tab above.

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