Monthly Archives: July 2016

After Action, Amateur Radio Emergency Service, Digital, Discussion, Emergency Preparedness, FLx/FLDigi, HF

July Training After Action Report

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On Saturday, July 16, 2016, PWCARES conducted our regular training outside at the Prince William County government facility. During this training we did two things:

  • Learned how to remotely control a station using TeamViewer[1], remote control software
  • Practice digital communications with FLDIGI

Remote Control

Chuck, KA3EHL, demonstrated how to remotely control a radio. The use case for this is in case we have to use HF, but we cannot run wires. For example, at the EOC, where the building has to remain secure. There are two parts to the system.

Chuck working the remote station
Chuck working the remote station

 

The first part is the remote system, a laptop running Windows and the TeamViewer software. The second part is the host station, connected to the HF radio, running TeamViewer software, and additional digtial software and radio control softwere. Chuck’s radio, an IC–7200,[2] comes with control software, but you could easily use FLRIG if your radio supports it. Chuck demonstrated sending a message with FLDigi, set to the Olivia[3] transmission protocol.

The HF host machine and HF rig
The HF host machine and HF rig

 

This is possible by setting up a BBHN[4] mesh network. TeamViewer needs a network connection, whether that connection is a Local Area Network (LAN), an Internet connection or a BBHN mesh connection. Chuck had flashed two Linksys routers with the BBHN software and connected each laptop to the router. Each router was powered by its own battery, but could be powered by commercial mains if available. He then sent a message which was received and responded to by Larry, K0LB, and was also seen at Tom, W4PIO’s station on the other end of the field.

Tom, W4PIO, working HF
Tom, W4PIO, working HF

 

Chuck’s full presentation is posted to the PWCARES website in Operating Procedures[5].

Digital Exercise

The second part of the exercise was the sending and receiving of messages using FLDigi. This exercise utilized the standard setup for FLDigi in a VHF environment[6]. We had a couple of team members operating from their home station as well as some in the field. There was a combination of radios and laptops and as we have discovered in the past, just bcause it worked yesterday, it may not work today. Each problem was worked through as it came up, and some problems will require a bit more research.

Members of PWCARES getting ready for the next exercise (Photo: A. Lenhart
Members of PWCARES getting ready for the next exercise (Photo: A. Lenhart)

 

Thanks to those who came out and those who partcipated from home.

  1. You can use TeamViewer for non-commercial purposes for no charge.  ↩
  2. Details about the IC–7200.  ↩
  3. Details about the Oliva protocol from Wikipedia.  ↩
  4. Details about broadband-hamnet  ↩
  5. A quick link to Chuck’s presentation.  ↩
  6. As detailed in Section 6.11 of the PWCARES Action Plan.  ↩
Amateur Radio Emergency Service, Digital, Discussion, Emergency Preparedness, FLx/FLDigi, HF, PWCARES

July 2016 Exercise

Prince William County ARES July 2016 Exercise

Version: 20160713–01 v1

Overview

Because of the high temperatures expected, we will move the beginning of the exercise back to 0830 EDT .

If you are not coming out, but are going to be around during our training hours, please feel free to jump on the air and participate as well, either by voice or digital means.

I will bring out a couple of pavilions for shade (and so you can see the monitors) and I will bring out a large video screen as well. Tables, chairs, and gear as I have room.

We will be conducting a multi-pronged exercise.

  • There will be a demonstration of remote control of an HF station by Chuck, KA3EHL
  • There will be a demonstration (and hopefully some traffic passing) of HF digital
  • We will again exercise VHF digital
  • We will practice sending and receiving voice traffic

Remote HF

Chuck, KA3EHL will demonstrate remote control of an HF station, using BBHN. This should be quite interesting!

HF Digital

As part of the demonstration of remote control, we will do some HF digital work. Coordination and details of the HF digital part of the exercise will be hashed out over the next couple of days with the parties who have volunteered.

VHF Digital

We will follow our normal plan of operations for VHF digital (see the Action Plan, section 6.11 for details). This is a good chance to come out and get your gear working, configure your gear, or find out more about digital.

Please make sure you have the FLDigi software loaded prior to coming out, as we will not have reliable Internet connectivity.

Voice work

Please bring a sample ICS–213 form as we will do some voice message traffic work as well!