Castle Rock Repeater Group – A Colorado Amatuer Radio Club

The Castle Rock Repeater Group is an amateur radio club based in Denver, Colorado. Originally founded in the 1960s, but organized in its current form in 1993, the CRRG has members throughout the Colorado Front Range and beyond.

We are a non-profit corporation registered with the State of Colorado. We operate three repeaters in the Denver metro area. Please join us for our weekly Sunday evening net at 7:00pm (1900) Mountain Time on our primary repeater at 146.670- MHz with a 100 Hz PL tone.

This is the official new home of Castle Rock Repeater Group. CastleRockHam.net and CRRG.org are former URLs of the club.

Visit us on Facebook at Castle Rock Repeater Group or join us on Discord.

News Around CRRG

Club Meeting May 17th

THIS MEETING HAS BEEN CANCELLED When: May 17th 1300-1500Where: 444...

POTA Event May 18th

When: Sunday May 18th 1400-1600Where: Rocky Mountain Arsenal NWR, 6550...

Club Meeting April 26th

Club meeting Saturday April 26 Location: American Red Cross 444...

Amatuer Extra Course 4/13

There is an Amatuer Extra Course coming up on April...

Club Meeting 1/25

CRRG will have its first meeting of 2025 on January...

Winter Field Day 2025

January 25th & 26th, 2025 Winter Field Day is an...

New Saturday Morning Net!

Join KE0DC for the Digital Ham Radio Q&A session every...

XLX022H

The XLX server that CRRG runs now has a new...

June 26th – 29th 2025

Where is it?

Please Register for a stay as soon as possible at:

Denver East / Strasburg KOA Holiday
1312 Monroe Street
Strasburg , CO 80136
800-562-6538
Website: https://koa.com/campgrounds/denver-east/
Reservations: https://koa.com/campgrounds/denver-east/reserve/

Agenda

June 26th Thursday
1400 – KOA check-in time
Arrive and get settled in, hit the pool?
June 27th Friday
1200 – Setup for Field Day can begin
1800 – Burgers at the Main Cabin, Meat and Greet.
June 28th Saturday
1200 – Field Day operating begins
1600 – 1800 – BBQ Dinner
1830 – Night Operating Begins
June 29th Sunday
0700 – 0900 – Breakfast & Exit Meeting
1100 – Checkout
1200 – Field Day Operations Stop

What is this event about?

Every year Colorado Amateur Radio or Ham Radio people go out and setup radios they have prepared to work in the field. It is always the last weekend of June so this year CARBBN, Colorado Ready and CRRG are teaming up for a Preparedness Field Day event. Meaning that if you want to camp and test your outdoor preparedness along with learn something about basic Medical preparedness please join us.

Communications Plan

On-Site Communications
FM Simplex: 446.250MHz
C4FM GM: 145.5625MHz DG-ID:0

Messaging
APRS Messaging: 144.390MHz (AC0XW-9, KE0DC-7 monitored)
Meshtastic: (keys provided on-site)

Digital Ham Radio Q&A Saturday Mornings

Digital Ham Radio Q&A Saturday Mornings at 08:00 MT on XLX022H, XLX720H, AmComm TG 31081, and TGIF TG 356

Join KE0DC for the Digital Ham Radio Q&A session every Saturday morning at 8:00 AM Mountain Time. Connect and engage with fellow amateur radio enthusiasts on the following platforms: XLX022H, XLX720H, AmComm Talk Group 31081, Wires-X 00728 and TGIF Talk Group 356. Each session covers a variety of topics, including FT8, JS8, Olivia, DMR, YSF, and more. This is a great opportunity to ask questions, explore digital modes, share knowledge, and stay updated on the latest in digital ham radio technology.

Join us on Telegram: https://t.me/+-yCYs7KyCgJmYTFh

Check in on Ham.Live

Ways To Connect:
XLX Reflector XLX022 Module H
XLX Reflector XLX720 Module H
Wires-X Room 00728 During the Net
AmComm Talk Group 31081
TGIF Talk Group 356