Donate

OAUSA Net - May 11. 2017 - Wilderness Communication

A preview of future nets
User avatar
DaveK
Site Admin
Posts: 3849
Joined: Tue Mar 11, 2008 10:33 am
Call Sign: K6DTK
Location: American Southwest

OAUSA Net - May 11. 2017 - Wilderness Communication

Post by DaveK » Tue May 09, 2017 11:00 am

WILDERNESS COMMUNICATION

This week we explore the many options for communications. The well prepared traveler carries the means to communicate regardless of where the trail takes him. Some communication options work better than others, some are expensive, and some are meant for very specific applications, but you should never leave home with out the ability to reach out for help. While cell phones may be adequate for short trips, near cell towers, it is the remote location adventures where trip plans must include the right equipment.

Having the ability to call for help in emergencies is clearly the most important reason to have the right equipment, but there are many others. We know several, as listed below, but there are others and we encourage you to let us know what they are by posting or participating. Here are some examples:
  • vehicle to vehicle communication on the highway and on the trail
  • keeping track of vehicles in caravans
  • assisting late arriving members of the group to find camp
  • communicating with other Hams in the areas traveled
  • sending pictures and trip reports home
  • keeping family members advised of your trip progress and location
  • preparation for emergencies at home
  • requesting and receiving information, (e.g. radio operation, menus, vehicle repair info, etc.)
  • For the HF crowd, the ability to appreciate the benefits of night time operation
Time permitting, we will cover the following topics:

1. New developments in communications
FRS / GMRS
Pactor 4

2. Ham Radio
VHF / UHF
HF
Airmail

3. APRS

4. Satellite Comms
Spot, In Reach
PLBs
Satellite phones
BGAN

5. Value of redundancy and having multiple options available (including multiple users)

6. Trip prep

7. Value of radio operation knowledge, operators manuals, spare parts, radio programming software, analyzers, etc.
DaveK
K6DTK


Extremism in the defense of liberty is no vice.
Moderation in the pursuit of justice is no virtue.

User avatar
kevinhum55
Posts: 103
Joined: Thu Dec 01, 2016 8:23 pm
Call Sign: W6RIP

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by kevinhum55 » Tue May 09, 2017 5:54 pm

Early Check in
W6RIP
Kevin

User avatar
DaveK
Site Admin
Posts: 3849
Joined: Tue Mar 11, 2008 10:33 am
Call Sign: K6DTK
Location: American Southwest

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by DaveK » Tue May 09, 2017 7:15 pm

NEW DEVELOPMENTS IN COMMUNICATION

Most who read these net previews are licensed Amateur radio operators, but the spectrum of communication devices that can benefit wilderness travelers is not limited to the Ham world. I don't hide my preference for Amateur Radio, and I believe (and preach) that some form of it must accompany you on any trip. Since the field of available communication devices extends beyond Amateur Radio, they will be mentioned here.

Here in the states, new developments in communication usually happen when the FCC makes a move. That is exactly what has happened recently, and the changes will have a positive effect on wilderness communications. I will mention two such changes during the net, one of which involves Ham radio and one of which does not (at least directly.) Both, as it turns out, can benefit the wilderness traveler.

FCC PERSONAL RADIO SERVICE REVISIONS THAT AFFECT GMRS, FRS AND CB, (Part 95 Devices)

On April 27, 2017, the FCC issued a Report and Order (R&O WT Docket No. 10-119) which implements some interesting changes to part 95 devices, including FRS / GMRS and CB.

For the most part, the CB radio service authorized under Part 95, is not really a communication device that I intend to cover during the net. It's communication capabilities are so limited and the band is so occupied by, well...............you know, that I will leave it to someone else to discuss. The only change that I thought was worthy of mention is that the FCC has lifted the restriction of communication range (155.3-miles) and will now allow CBers to legally communicate at any range that the frequencies allow.

It is FRS and GMRS frequencies that we will concentrate on, as they have received the most important changes from the FCC. The April 27, 2017 R&O now gives a significant boost to the communication capabilities for these frequencies and the devices that qualify. In typical bureaucrat fashion, this R&O is unbelievably lengthy, consisting of 114 pages of what seems like endless unnecessary detail. I attach a PDF version for those who may be suffering from any form of insomnia. At the present time, I am not aware of a Cliff Notes version of the R&O, so you may need to read it all if you want the full story.

Here it is:
FCC R&O WT Docket No. 10-119 4-27-17.pdf
(642.42 KiB) Downloaded 67 times

Here are some of the highlights of this R&O which will certainly benefit wilderness travelers:
  • Under "§ 95.1767 GMRS transmitting power limits," the FCC now provides:
(1) The transmitter output power of mobile, repeater and base stations must not exceed 50 Watts.
(2) The transmitter output power of fixed stations must not exceed 15 Watts.
Under these rules, the new power limits will be limited as follows:
The limits in this paragraph apply to stations transmitting on any of the 462 MHz main channels or any of the 467 MHz main channels.
  • Several new frequencies will be added
  • Licensing will no longer be required for FRS frequencies and will now have a power limit of 2 watts.

PROPOSED FCC RULE CHANGES THAT WILL AFFECT THE AMATEUR RADIO COMMUNITY

Amateur radio frequencies are utilized in a number of different ways, including CW, voice and digital. It is the digital community that will benefit if the FCC's Notice of Proposed Rule Making (NPRM) is eventually adopted. In short, the FCC has proposed changes that will make it legal to use new technology, referred to as Pactor P4, for data transmission (which, by the way, is allowed by most of the international Amateur community.) We will spend more time, both during the net and later in our posts here, describing the benefits of the P4 technology, but suffice it to say that P4 represents a 200% t0 300% increase in transmission speed for those using the Pactor P4 modem. For our uses, it allows the use of regular email anywhere that HF frequencies are available (which is just about anywhere!!!)

Here is the NPRM" in PDF format (and thankfully, it is only 11 pages):
FCC- - NPRM rm-11708.pdf
(196.08 KiB) Downloaded 125 times


Here is what the Pactor4 modem looks like:
Pactor4 7400.png
Pactor4 7400.png (318.34 KiB) Viewed 1574 times
DaveK
K6DTK


Extremism in the defense of liberty is no vice.
Moderation in the pursuit of justice is no virtue.

User avatar
lrsrngr
Posts: 481
Joined: Thu Apr 18, 2013 8:32 pm
Call Sign: KK6CTT
Location: SOCAL

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by lrsrngr » Wed May 10, 2017 12:42 pm

On line check in for KK6CTT please! I have a slight conflict but will be in ASAP situation dependent. Thank you.
H-U-A or "Hooah!" = Heard Understood & Acknowledged. In context: "Roger that sir, HUA!"

ki6kui
OAUSA Board Member
Posts: 225
Joined: Wed Mar 19, 2008 11:37 am
Call Sign: KI6KUI
Location: Loveland, CO
Contact:

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by ki6kui » Wed May 10, 2017 1:37 pm

Looks like this is going to be a very interesting and informative net!
Ken_____________________________________________
KI6KUI
GMRS: WQVE723
You can't plow a field by turning it over in your mind.

User avatar
KAP
Posts: 517
Joined: Thu Feb 20, 2014 11:25 pm
Call Sign: KK6DGL

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by KAP » Wed May 10, 2017 7:34 pm

Dave
Please check me in
Kevin
KK6DGL
“A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects”.
Robert A. Heinlein

User avatar
DaveK
Site Admin
Posts: 3849
Joined: Tue Mar 11, 2008 10:33 am
Call Sign: K6DTK
Location: American Southwest

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by DaveK » Wed May 10, 2017 9:42 pm

APRS

Briefly, APRS is a means to report your position, even when traveling, so that others can know where you are. The position data can be transmitted either to other users or to the internet. In short, it is a way of keeping track of other users. Jim Sanders did an excellent net back in February, so I don't want to cover all of the same ground again. Hopefully we will get the recording of Jim's net up soon.

Keep in mind that for this discussion we will only deal with APRS for VHF. For those who are properly equipped and who want the ultimate in APRS, there is a version of this that utilizes Ham HF Frequencies, resulting in significantly increased range. There are some definite challenges and limitations in the HF version, but it does offer users a singular means to communicate.

For our purposes, there are two APRS devices that we will discuss on the net:
  • Vehicle mounted APRS
  • Portable APRS via a hand held transceiver (aka walkie talkie)
APRS data is transmitted by these devices to digipeaters, which in most cases, serve as internet gateways. Once it hits the internet, it is available world wide. So, as you travel, your position (and other information) becomes available to anyone with access to the internet.

The benefits of APRS involve both communications and navigation, and we will deal with them both during the net. Briefly, here are some of the communications benefits of APRS:

1. Allows traveling groups to keep track of everyone in the group
2. Allows family and friends back home to know your exact location
3. Allows rescue operators to know your location in the event of an emergency
4. Allows users to send email messages to anyone
5. Allows users to send text messages to others in the group or at home
6. Allows late arriving members of your group to locate your camp or the traveling group.
7. Allows retrieval of your complete trip tracks for trip reports and future planning

Here are some of the Navigation benefits of APRS:

1. Can use most maps, especially USGA Topos.
2. Allows drivers to pre-plan the trip by annotating the maps.

Some examples of APRS systems:

Different APRS maps
Note: The first is a USGS TOPO map of an area on the North Rim of the Grand Canyon, called Twin Point.
APRS Navigation 3.jpg
APRS Navigation 3.jpg (203.4 KiB) Viewed 1500 times
APRS Navigation 1.jpg
APRS Navigation 1.jpg (199.3 KiB) Viewed 1500 times
APRS Navigation 2.jpg
APRS Navigation 2.jpg (106.24 KiB) Viewed 1500 times

Examples of APRS radios

Yaesu VX8DR (http://www.yaesu.com/indexVS.cfm?cmd=Di ... Archived=0)

From the Yaesu website:
VX-8DR – A Devoted APRS Users Version of the VX-8R Series

The VX-8DR APRS®/GPS/Bluetooth® Handheld Transceiver is an additional version of the VX-8R that includes not only its solid features and specifications but also new expanded APRS® capabilities to meet the needs of even the most active APRS® user.
Yaesu VX8DR.jpg
Yaesu VX8DR.jpg (54.26 KiB) Viewed 1500 times

Kenwood TM-D710GA

From the Kenwood website:(http://www.kenwood.com/usa/com/amateur/tm-d710ga/)
The GPS unit required for mobile station APRS operation is included in the control panel. Genuine APRS operation is possible with the TM-D710GA alone. GPS Logger, Mark Waypoint, Target Point, and automatic time correction functions are also included.
Kenwood D710.jpg
Kenwood D710.jpg (71.1 KiB) Viewed 1500 times
DaveK
K6DTK


Extremism in the defense of liberty is no vice.
Moderation in the pursuit of justice is no virtue.

User avatar
DaveK
Site Admin
Posts: 3849
Joined: Tue Mar 11, 2008 10:33 am
Call Sign: K6DTK
Location: American Southwest

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by DaveK » Wed May 10, 2017 9:49 pm

HAM RADIOS

Having Ham radios on board is a must for any trip. While your 2M radio will often suffice, and is a "must have" piece of equipment, the well prepared traveler will also have his HT and his HF rig.

For the Amateur community, for the most part, no case needs to be made for the value of your radio. When it comes to long distance communication, reliability, limitless options for operation, a huge variety of equipment, and a great number of fellow Hams to help out, there is no equal to this means of communication. For wilderness and remote location travelers, these qualities make Ham radio an absolute must have when it comes to your equipment.

Due to the incredible diversity of equipment, we know that there are almost limitless applications for Ham radio, and we have adapted our rigs to meet the specific needs of our wilderness travels. There are certainly others, and we encourage you to let us know, either on the net or, preferably, here on the website.

By far, the most important benefit of Ham radio is the means to seek help. Secondarily, it serves as a means to communicate for the many reasons mentioned in post number 1, above, all of which we will discuss during the net. In this post I will only highlight two things: 1) Airmail and 2) some examples of remote location set-ups.

If you have listened to our nets for any length of time, you know that I have found it very helpful to keep family and friends appraised of our progress and safety, as we travel. While it probably goes without saying, I will do so anyway - once we hit dirt, the cell phones are useless. One of the most important pieces of equipment that I carry is my HF radio, as it allows me to keep in touch with everyone back home, including those who are not licensed Hams. I do this though a program called Airmail. It's unique features allow me to send and receive regular emails, including pictures, to anyone with an email address. We have used it for many purposes, all of which we will discuss on the net.

The equipment needed to make this program work obviously includes an HF radio and an antenna system that will allow the use of several HF bands. The ability to access several bands makes it possible to find one that has the best propagation qualities, and to find one that is not as busy as others. One will also need a Pactor modem.

In addition to keeping family and friends updated on our condition and progress, I have used Airmail to provide pictures to other members of OAUSA to be posted here on this website. Currently, FCC regulations permit only the use of a Pactor 3 Modem. Recently, however, the FCC considered a petition to allow the use of Pactor 4 modems and has just issued a Notice of Proposed Rule Making, which indicates their willingness to make these changes. While Pactor 3 worked, it was a bit on the slow side, but certainly very acceptable, given it's benefits. The benefits of Pactor 4 is the 200% to 300% increase in transmission and receiving speed, making it just about as fast as your email at home. Needless to say, I am eagerly awaiting the ultimate decision from the FCC.

Here are some examples of pictures that I've sent using airmail:
Airmail Picture 2.JPG
Airmail Picture 2.JPG (50.39 KiB) Viewed 1421 times
Airmail Picture 1.JPG
Airmail Picture 1.JPG (51.55 KiB) Viewed 1421 times
Airmail Picture 3.JPG
Airmail Picture 3.JPG (44.3 KiB) Viewed 1421 times


Here is an example of the set-up I use for HF operations, including Airmail. The antenna is a Scorpion connected to an Icom 7000. The advantage of this screwdriver antenna is that is able to use all Amateur frequencies from 6-80, and tunes with the push of a button.
Scorpion Antenna.JPG
Scorpion Antenna.JPG (103.96 KiB) Viewed 1421 times
DaveK
K6DTK


Extremism in the defense of liberty is no vice.
Moderation in the pursuit of justice is no virtue.

User avatar
KK6ATH
Posts: 40
Joined: Thu Sep 04, 2014 1:44 am
Call Sign: KK6ATH

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by KK6ATH » Wed May 10, 2017 10:30 pm

WOWZERZ....looks like the makings of a "Killer" net!
job well done Dave!
Early Check in Please..

Thanks,
KK6ATH

User avatar
KK6GFF
Posts: 116
Joined: Fri Oct 04, 2013 9:16 am
Call Sign: KK6GFF

Re: OAUSA Net - May 11. 2017 - Wilderness Communication

Post by KK6GFF » Thu May 11, 2017 7:14 am

Tonight I won't be able to participate, but any questions about the below pls post up and I'll answer!

A few months ago I discovered the Tera 505 and it's a great GMRS radio. I'm pushing it in my CERT battalion. The other day we were doing a drill and we had someone also with a Tera on a hill 2.6 miles away, I could communicate with him crystal clear, the other members with their motorolas standing next to me couldn't even catch what I was receiving from him.

http://www.hamradio.com/detail.cfm?pid=XT-000026

The radio is very well built and rugged. Along with it I bought a longer whip.
XT-000026A.jpg
XT-000026A.jpg (8.08 KiB) Viewed 1407 times
Back to ham and APRS, I have the VX8-DR, it does APRS well but the only problem I've found with it is the lack of power compared to a mobile radio, in LA area there're only a few spots where I can send my signal and get on the map.

Also, I keep my delorme inreach in my jeep at all times, and when I get two blocks or more away from my jeep I always take it with me. That's my safety net. I can send messages to any cellphone or e-mail.
bffe6c2c-5d6f-4d55-9def-ac5b4b9b55a7.jpeg
bffe6c2c-5d6f-4d55-9def-ac5b4b9b55a7.jpeg (26.73 KiB) Viewed 1407 times
Roger
Last edited by KK6GFF on Thu May 11, 2017 5:07 pm, edited 2 times in total.
Roger WZ6B
2014 JKUR

Post Reply

Return to “OAUSA AMATEUR RADIO NET PREVIEW”

Who is online

Users browsing this forum: No registered users and 1 guest