Repeaters: 420 – 450 MHz

The RMRL has five repeaters in the 70 centimeters band as follows:


Output: 447.075
Input: 442.075
DCS: 165
Location: Downtown Denver @ 5,300 ft. MSL

Downtown Denver Repeater
Downtown Repeater

This repeater is available to RMRL members for use through the generosity of Steve Cohan (KF0RW), RMRL member, and Jeff Grazi (WA0MJX), RMRL founding member. The repeater is not owned or maintained by RMRL.

The repeater’s location provides “look up” coverage to the front range foothills, coverage to the shadow areas along the C-470 corridor, superb HT coverage in and around downtown Denver, and limited coverage into Boulder.

At times, the repeater may be used for emergency operations. As with any of our repeaters, emergency communications take priority.


Output: 449.100
Input: 444.100
Location: Special Events Repeater

This repeater is also node #3494 on the Internet Radio Linking Project (IRLP) linked system.

Squaw Mountain Repeaters
Squaw Mountain Repeaters

Output: 449.450
Input: 444.450
Location: Squaw Mountain (W of Denver) @ 11,440 ft. MSL
Access: 103.5 Hz CTCSS required/127.3 Hz CTCSS transmitted.

This is the RMRL’s other wide-area coverage repeater. The .45 is available for general use at all times.

In an attempt to reduce interference the 449.450 repeater has been configured to receive the 103.5 Hz CTCSS tone and transmit a 127.3 Hz CTCSS tone.

Streaming audio can be heard on the 145.220, 145.340, 146.940, 224.000, and 449.450 repeaters. Click here to listen.

Guy Hill Repeater

Output: 449.750
Input: 444.750
Location: Guy Hill (NW of Golden) @ 8,300 ft. MSL
Access: Digital

Time slot 1 on our repeater is a set up to be dynamic, while time slot 2 which is static. A dynamic time slot means you can connect time slot 1 to any DMR/Brandmeister talk group you desire so long as your radio is programmed correctly. A static time slot is set to one talk group pernmanently.

To use our dynamic time slot 1, follow these general instructions:

  1. In your codeplug, create a contact and RX group for the talk group to which you wish to connect.
  2. Create a new channel in your codeplug for that talk group using the corresponding new contact and RX group in channel settings.
  3. Set the new channel frequency parameters to 449.750 on RX, 444.750 on TX, time slot = 1, color code = 1.
  4. Set other channel parameters as desired.
  5. Key up the new channel on our DMR repeater and it will automatically connect the time slot to that talk group. The repeater will automatically disconnect from that talk group after 15 minutes of inactivity.

If you wish to disconnect the time slot instantaneously from the current talk group in order to connect to a different talk group, it is recommended that you use the Brandmeister disconnect command, which is ‘4000’. This will avoid a talk group connection conflict on the time slot. Here’s how to do this:

  1. Use the instructions above set up a contact, RX group, and channel for Brandmeister’s talk group 4000.
  2. Set the channel up as described above – for time slot 1, color code 1, 449.750 on RX, and 444.750 on TX.
  3. When wanting to disconnect a talk group that is already connected on time slot 1, navigate to the channel on your radio with talk group 4000 programmed and key up.
  4. You should get an automated verbal response once the previous talk group is disconnected.
  5. Once disconnected, you can proceed to connect with a new talk group.

# # #

  1. In your codeplug, create a contact and RX group for talk group 310894.
  2. Create a new channel in your codeplug for accessing to the 310894 talk group via RMRL’s DMR repeater.
  3. Set the new channel parameters to 449.750 on RX, 444.750 on TX, time slot = 2, color code = 1, and RX group is the one you created that includes the 310894 contact.
  4. Set other channel parameters as desired.

This machine provides very good HT coverage in the Denver Metro area.  For further details see this QRZ post about this repeater.


Output: 449.825
Input: 444.825
Location: Broomfield @ 6,000 ft. MSL
Access: 103.5 Hz CTCSS required

Status: Undergoing maintenance.  Expected back up soon.

This repeater is linked with the 146.94 repeater from Squaw Mountain and offers coverage along the foothills and into Boulder where the .94 repeater is shadowed.

This repeater was installed at the request of the Skywarn group to allow access to the 146.940 repeater from the new NWS facility in Boulder.