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Dayton Hamvention 2017 Reflection

Dayton Hamvention 2017 Reflection

What can I say about Dayton Hamvention 2017 other than WOW! It had everything; Great venue, 30,000 of your favorite ham radio friends, great vendors, Rain, Rain, and more Rain, good food, great buys, mud and on-site camping. Did I...

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BridgeCom Systems D-500 70 cm DMR and Analog Handheld Transceiver by QST

BridgeCom Systems D-500 70 cm DMR and Analog Handheld Transceiver by QST

Reviewed by Pascal Villeneuve, VA2PV
va2pv@arrl.net

D-500 Amateur DMR HTIn the past few years, VHF/UHF digital voice communication has been one of the fastest growing segments of Amateur Radio. D-STAR and System Fusion (C4FM) were specifically designed for Amateur Radio, but this is not the case with DMR — Digital Mobile Radio. It is an open standard, developed by the European Telecommunications Standards Institute (ETSI). As such, this technology is available to any company willing to build a digital radio, such as the BridgeCom Systems D-500 (by TEKK) reviewed this month. Introduction to DMR There are three types of DMR — Tier I, Tier II, and Tier III. To learn more about DMR, I strongly suggest that you read “Introduction to Digital Mobile Radio (DMR)” by John S. Burningham, W2XAB, in the October 2015 issue of QST. In this review, we will concentrate on the widespread Tier II DMR network. You will need to understand a bit about this technology to program your DMR radio. As DMR was not developed specifically for Amateur Radio, the terms are different from what we are used to. Tier II DMR uses TDMA (Time Division Multiple Access), which is a frequency-sharing protocol. You can have two conversations on the same frequency without interfering with each other. This is very efficient, as Tier II TDMA uses a 12.5 kHz bandwidth with two time slots. The switching is very fast, thus allowing for two simultaneous contacts on the same frequency, using this time-sharing method.

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65 Great Things about Ham Radio by CQ Magazine

65 Great Things about Ham Radio by CQ Magazine

Clearly written by hams for hams. 65 great things about ham radio from CQ Magazine
BridgeCom Systems Booth Ft Wayne Hamfest 2015
1. It works when nothing else does
2. It makes you part of a worldwide community
3. The opportunity to help neighbors by providing public service and emergency communications
4. Some of the nicest people you'll ever meet
5. Some of the smartest people you'll ever meet
6. Some of the most interesting people you'll ever meet
7. Some of the most generous people you'll ever meet (along with some of the cheapest!)
8. Lifelong friendships
9. Friends around the world (including those you haven't met yet)
10. The opportunity to go interesting places you might not otherwise go to
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Hoosier DMR adds new MV-DMR Bridge

From Hoosier DMR Facebook page: https://www.facebook.com/HoosierDMR/posts/1472842543034680?notif_t=page_tag As we sit back and relish where Hoosier DMR has come from since its inception and the struggles we have endured, I am overwhelmed by the growth we have seen in just under a year....

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JULY 2015 MISSOURI SECTION NEWS

JULY 2015 MISSOURI SECTION NEWS By DALE BAGLEY, K0KY MO SM

Field Day 2015 was an excellent opportunity to showcase Amateur Radio to the community and provide practical hands on experience that can be utilized during actual disasters or emergencies.

July 2015 ARRL MO Section NewsI appreciate the efforts of the net control operators on the MO Traffic Nets to facilitate the handling of Section Manager and Section Emergency Coordinator traffic. One of the important upgrades in Field Day, in recent years, is the improved messaging through TV news, print news outlets and social media. I don’t know if every MO Section Field Day operation experienced a rain storm during Field Day this year but, at my club’s Field Day site, the rain seems to arrive on schedule like the buzzards returning to Hinckley Ohio. I hope everyone had a safe, fun and productive Field Day 2015 and are looking forward to an even better Field Day 2016.

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BridgeCom visits Ham-Com 2015 Irving, TX

Here are some thoughts and pictures from our visit to Ham-Com 2015 in Irving, TX.

BridgeCom Systems Ham-Com 2015 BoothRon and I left the Kansas City, MO area on Thursday morning and it was 80+ degrees.  When we got to TX it was 90+ degrees, so summer is officially here.  

Driving from MO to TX without the radio on leaves for a lot of random conversation, good, but random.  Ron and I discussed our thoughts and expectations for Ham-Com.  We expected to have a good booth location, plenty of foot traffic, and generate a positive buzz surrounding BridgeCom Systems and our products.  We packed with us three repeaters (BCR-50V, BCR-220, BCR-40U), the new BCM-220 mobile, and our MV-DMR server in a 2U chassis, plus the assorted banners and spec sheets.  

We arrived in TX about 3:30p Thursday and went straight to the Irving Convention Center to unload and set up.  The people of TX are very nice, lots of yes sir, no sir.  We got set up pretty quickly, we like to keep the booth small with just a few products and brochures.  I'm not a fan of the table across the entire front of the booth, but it seemed to work well this time giving us some shelter from the masses.  However, I should have put the banners out front on the corners where people could have seen them better.

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Amateur Radio Guide to Digital Mobile Radio (DMR)

Author: John S. Burningham, W2XAB What is DMR? Digital Mobile Radio (DMR) was developed by the European Telecommunications Standards Institute (ETSI) and is used worldwide by professional mobile radio users. [http://www.dmrassociation.org] DMR is divided into three tiers. Tier I is a...

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Radio over IP - What is it?

ROIP Radio over Internet Protocol (RoIP) is a two-way communication method which involves trans-reception of radio communication signals over internet protocol (IP). Cost effective and power efficient, RoIP essentially leverages the same communication principles as that of VoIP but requires...

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