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Thorodin Wind Damage

02/08/2018

As of about 2PM on Feb 7, 2018, the Thorodin DMR went off-air as well as 449.225 analog and the Colorado Connection Denver transmitter.  The main antenna for UHF transmitter combiner broke it’s mounts at the roofline and ripped out it’s feedlines.  The system is temporarily repaired and back online as of Feb 9, 2018.  […]


RMHam U – Antennas, feedlines, SWR

12/16/2017

About 25 hams attended Chris Hamilton’s (AE5IT) RMHam U class on Antennas, Feedlines and SWR (subtitled:  Every Antenna is a Multiband Antenna).   The Chris explained why even mismatched antennas can be effective radiators as long as your are using a feed line with low loss.  The class also had a practical demonstration of wave  propagation.  […]


AT-D868UV Questions and Silver Lining

12/13/2017

These are VHF and UHF (respectively) captures from the AT-D868UV dual band DMR handheld. This indicates timeslot violations during the first ~100ms of a DMR transmission, which quickly settles down to normal behavior. Other than this timeslot violation the RF is clean, looking about as good as offerings from Connect Systems and Tytera.


Support RMHAM this Holiday Season!

11/06/2017

Rocky Mountain Ham Radio has found a great opportunity for you to have a portion of your purchases through http://smile.amazon.com donated to Rocky Mountain Ham Radio.  This costs you nothing, and RMHAM receives a portion of your purchase! Click Here to sign up and support RM HAM or just visit Amazon Smile and choose Rocky […]


Maker Faire Success

11/04/2017

Rocky Mountain Ham Radio attended Maker Faire Denver on October 14th and 15th 2017 at the Denver Merchandise Mart.  The Comm Trailer was set up in an area that had great traffic and many visitors during the event.  Willem reported that the crystal receiver was a bit hit with attendees and there were ongoing discussions about […]


Exhibiting at MakerFaire

10/05/2017

Rocky Mountain Ham Radio will be exhibiting its communications trailer at the Maker Faire Denver on October 14th and 15th 2017 at the Denver Merchandise Mart. 451 E 58th Ave, Denver, CO 80216.  We will be there from 10AM Saturday to 5pm Sunday.  This is a great event with many crossovers to amateur radio.  Come […]


Three Sites, One Day. Again!

10/01/2017

A crack team of 15 RMHAM team members pulled off another 3 site day interconnecting the RMHAM network to Leadville and Vail.  This push gets DMR into these areas that have not been covered with DMR until now.  We now cover I-70 nearly contiguously from Genoa through Avon.  We installed two microwave hops from our […]


RMHAM-U 2017-18

09/02/2017

Based on the results of our survey regarding RMHAM University, we are pleased to announce an exciting program for RMHAM-U this year. In addition to six new half day classes, we will also have a Home Brew and Kit-building Expo in conjunction with the ARA Swapfest in February. Oct 21, 2017 DMR in Ham Radio […]


RMHAM Supports Tour De Ladies

07/14/2017

July 8, 2017, Parker, CO.  Rocky Mountain Ham Radio and Douglas/Elbert County ARES with the assistance of member Mark Atkinson, W0ATK made the Rocky Mountain Ham Radio Communications Trailer and cache radios available for the use of the Tour De Ladies. Tour de Ladies is a fully supported, non-competitive, women-only cycling event through the rolling hills […]


RMHAM hosts 2017 CSVHFS Conference in Albuquerque, NM

06/18/2017

Rocky Mountain Ham Radio, New Mexico hosted the 2017 Central States VHF Society (CSVHFS) Conference in in sunny Albuquerque, New Mexico (DM65) on July 27-30 at the Sheraton Airport Airport hotel. This event is the largest VHF/UHF/microwave conference in the nation, and attracted some of the most knowledgable VHF/UHF/microwave hams from across the United States and […]