Wednesday, July 14, 2010

2010 APRS Golden Packet Attempt


On 25 July please consider participating in this year's APRS Golden Packet Attempt along the Appalachian Trail (and Pacific Coast Trail). Please see www.aprs.org/at-golden-packet.html and also page 99 in July's QST. There is also an effort being made this year on the West Coast see www.aprs.org/pct-golden-packet.html.

All it takes is a mobile with a D700 or FTM-350 to drive up to the top of the mountain and park for 4 hours.

Many teams have formed, but the New England area has many gaps from New York to Maine:

  • Sam's pt NY (not manned in 2009)
  • Mt Greylock
  • New Hempshire (innop in 2009)
  • Mt Washington (2009 team all moved to texas)
  • Middle Maine (not manned in 2009)
  • Mt Katahdin (not manned in 2009)

We still have not formed solid teams from these southern sites:

  • Huntsville AL
  • Lookout Mountain TN
  • Roan Mountain NC (maybe)
  • Comer's rock VA (not operational in 2009)(near Wythville)
  • Apple Orchard Mtn (near Roanake

It's a 4 or 5 hour event on Sunday Afternoon and a great way to escape the heat down below by getting up there on the mountain top. If you cannot participate, spread the word, and find an out-doors type that can. Most sites are DRIVE-UP sites, so just about anyone with a car and a D700 or FTM-350 can participate as a temporary digi site after proper set-up.

Think of it as APRS Field Day.

Bob, Wb4APR

https://www.tapr.org/cgi-bin/mailman/listinfo/aprssig

Friday, June 18, 2010

APRS Channels - Kenwood D700's at EOC

At our local EOC (emergency Operations Center), they have two D700's and and additional four in GO-kits which we will be programming FOUR channels for APRS use on side A with these 4 names and settings:

  1. APRS-107 <== Muted APRS witch CTCSS 107 (with calling)
  2. APRS-VA <== Normal APRS with CTCSS 100 for voice alert
  3. APRSmute <== Muted APRS with DCS xxx
  4. APRS-raw <== APRS with no squelch for channel assessment

With the above 4 channels, there should never be any need to touch the volume control on the APRS radio side A. It should always have the volume up to normal volume to receive calls. The operator can select any degree of noise free operation with those 4 channels.

  1. APRS-107 Normal setting is APRS 107 which is basically APRS with voice alert, but with the local PL tone for our club. This keeps the radio QUIET, but if someone really did want to get the attention of the crew at the EOC (no matter where they were listening, they could key up on APRS with PL 107 and call them.
  2. APRS-VA For knowledgible operators, they can set normal Voice Alert if they want a proximity detector to know when other Voice Alert stations are in range. I would call this channel APRS-VA except that since we are adjacent to the State of Virginia, too many people will think it has something to do with that state instead of Voice Alert. SO in our case, I will label this channel as APRS-100.
  3. APRSmute Using the APRS channel with a random DCS basically means the speaker squelch will NEVER Open. SO in effect, this is APRS MUTED operation without having to touch the volume control.
  4. APRS-raw Choose this channel to quickly listen to the APRS channel for any kind of troubleshooting without having to go to TONE menues.
Again, the purpose of these 4 channels are to make sure that the APRS radio always powers up in the best configuration for immediate use.
  1. Have a default for the radio to power up that is quiet
  2. Make sure no one ever has to touch the SQUELCH or VOLUME settings.
  3. But the APRS operator in the EOC can be reached if needed
THen we will have the following PM Program Memories:
  • PM1 - APRS using the front panel. Band B on local UHF channel
  • PM2 - APRS packet mode to PC client software. Band B on UHF
  • PM3 - Voice Operation. Band A and Band B set for desired channels
  • PM4 - Voice and BAND SCAN
  • PM5 - Still thinking... About this one..?

Bob, WB4APR

Tuesday, September 8, 2009

Stolen Ham Gear Registry

NWHAM.COM - Ham Radio for the Pacific Northwest - is providing a registry for stolen Amateur Radio gear.

Thanks folks!

Saturday, September 5, 2009

New Writeup on HF APRS Posted...

by WA8LMF:

Subject: [aprssig] New Writeup On HF APRS Posted To My Website

I have finally got around to doing the guide/essay/set-of-notes on HF APRS operation that I have intended to to do for some time.

It is posted on my website at:

http://wa8lmf.net/aprs/HF_APRS_Notes.htm

Thursday, September 3, 2009

144.350 and 144.390 APRS Update

BALDI
The BALDI digipeater has a new TNC, the old Kantronics KPC3 was replaced recently with a Argent Data Open Tracker 2 making for a better digipeater that could be more easily remotely controlled, and also has direct support for a weather station (see next item). Last weekend the transmission line to the top of the 80 foot tower was upgraded to a run of hard line. This will greatly increase the usable range of BALDI on 144.390.

Weather Station
BALDI is now sporting a weather station. A Peet Brothers 2100 is now fully functional at Baldi providing for weather observations from a location where there are no other weather stations nearby. Fully knowledgeable that BALDI is a really severe location in the winter, the remote sensing devices are heated (optional). This is a dream of mine fully realized after the 17 years I've been at Baldi, we've finally got around to making it happen.

VBALDI
We've traded out the 2 element folded dipole that was installed last fall with a 8 element folded dipole commercial grade antenna. Testing has proved this was the right decision. Doing so solidified our connection to VHEBO in the mountains SW of Portland, 160 miles away. We're now often Igated directly by the Internet connection at VHEBO.

CRYSTL/XTAL
In early July we added a Kenwood D-710 at the top of the Crystal Mountain Ski Area on the east side of the Mount Rainier National Park at 6,800 feet. This "double sided digi" as its been nick named has truly been working amazingly well. Its operating on 144.350 @9600 baud on the internal Kenwood TNC, and a Argent Data Open Tracker 2 TNC on the external data port. With both the high elevation and Mount Rainier right across the valley this site is working fantastically! Mountain bounce has really been our friend for this site's great coverage! Heard direct in Idaho, Salem and Victoria/Vancouver, Canada, and many places in between. This site has really filled in a lot of the dead zones between Greenwater and around the mountain towards Packwood and Cayuse and Chinook Passes into Yakima. Both sides are, of course, working on the same radio and antenna, that tells us that our foot print for 144.350 and 9600 baud is equally covered. CRYSTL is on 144.350 running 9600 baud, XTAL is on 144.390 and 1200 baud.

PACK
Bob, K7MXE is the most recent addition to the 144.350 9600 baud network with his addition of a Kenwood D-700 in the Pac-Forest. This is a solar powered site, and does very well throughout Puget Sound (very near the W7PFR-1 144.390 location near Eatonville) and around the south side of Mount Rainier.

SHRINR
This location on the east side of Mount Rainier was a 144.390 only project for us, it too is a solar powered only site. It's located at a very remote site and access is very limited once there. It worked for a while but unfortunately failed for an unknown reason. It is a seasonal digipeater anyway and will be revived next spring. With BALDI, XTAL, SHRINR and KJ7XE-11 there is (err, was, until SHRINR failed) literally complete coverage all the way around Mount Rainier on 144.390 with a 5 watt radio. Snow will take care of this sites primary coverage area soon enough anyway.


VHEBO
The VHEBO is supported by the same folks that run the HEBOWX digipeater above Lincoln City, Oregon. VHEBO is working very well for the folks in the Eugene/Salem area up to the southern end of Portland and along the Oregon coast from Astoria down through Seaside, Cannon Beach and much of the coastal highway and mountains towards Yachts.

Igates
There are a number of Igates located throughout Puget Sound, in addition to VHEBO, that works very reliably.

California
We've recently been granted permission from the coordinators in California to begin testing at a site in California. More on this later, but for now I'll say that it is in Northern California and will have coverage through the major population areas.

Enjoy!
N7FSP, K7EK, KJ7XE

Wednesday, August 12, 2009

Summer Gathering Updates

The 2009 Summer Gathering is getting close.. Check out the schedule here

Sunday, July 26, 2009

T2Oregon - new Tier 2 APRS server

Hello Everyone --

I would like to announce a new T2 APRS server, T2OREGON. It is located at a small data center in Corvallis, OR, and is also serving as the NH6Z-10 IGate that some of you may have noticed lurking around lately. I've been involved in APRS for a few years now, although I wouldn't consider myself an expert by any means. If you find any issues that you would like me to clear up, please feel free to drop me an e-mail.

The server is available at aprs.nh6z.net:14501, or oregon.aprs2.net:14501; and on ipv6 at aprs.ipv6.nh6z.net:14501, or oregon.ipv6.aprs2.net:14501. In addition to the Washington, Montana, and Full NWAPRS ports, I have also added an Oregon and Portland Metro Area port on the server.

You can find out more about the hardware, software, and build process of the setup at www.nh6z.net and clicking on the APRS IGate link.

Again, please feel free to let me know of any problems, comments, questions, or suggestions.

73
--
Jeremy McDermond (NH6Z)