n7ipb's blog

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Where does the WETNET gang hangout?

I've been getting a number of requests lately asking for a list of frequencies where at least some of the wetnet gang can be found. 

I'll get around to adding a list to the FAQ but in the meantime here's the current list.

      Location                          Frequency               PL

  • Olympia                        224.08/ -1.6Mhz    103.5
  • Central Puget Sound    224.58/ -1.6Mhz    103.5
  • North Puget Sound       224.78/ -1.6Mhz    103.5
  • Central Puget Sound    441.950/ +5Mhz     97.4

All four machines are linked together (441.950 is the hub machine)   220Mhz is the preferred band although we won't scream if you come in on 441.950.

 

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Field Day wrapup

WOW, what a georgeous weekend for FieldDay this year.  It's been years since we've had weather this good.IMG_0489.JPG

While Friday was a bit on the cloudy side that made it perfect for putting up antenna's.  Richard (n7rig), Tor (ae7ev), Curt (we7u) and I (n7ipb) put up Richards new HF vertical, the forty foot mast for the dipoles and the operations tent.

Considering it was only the four of us (and Richard left early to attend n0fpf's wedding open house) we did pretty well.

Then it was off for beer and food at the Skagit River Brewery.

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It's Field Day time again

Once again the WETNET gang will be participating in  ARRL Field Day from the QTH of N7RIG in the beautiful Skagit valley.

DSC_0017

Tlhis year, unlike years past we're not doing a special antenna project nor are we putting up one of our previous big antenna's.  No Bruce array,  no 20M rhombic.

Instead we'll be keeping it simple. 

  • One Titan-DX multi-band vertical (destined to eventually become N7RIG's permanent HF antenna)
  • One 160/80/40 dipole and G5RV on a single mast
  • One 6-meter quad. 

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SeaPac 2011

Our annual outing to the SEAPAC convention in Seaside Oregon is over for this year.  Once again a fun time was had by all with  something like a dozen and a half of the Wetnet gang there as well as countless other acquaitences  there was no lack of activity.

This year Peter (wa7fus) provided a portable 224.22 repeater and ran it from his hotel room.  It made staying in contact with everyone extremely easy and avoided the hastle of finding a clear simplex frequency for our use.

I didn't win anything but I did pick up some clamp-on ferrite filters to see if I can kill the two meter interference in my car and maybe make an attempt at eliminating the 144.39Mhz interference from my Clear modem at home.  I'm not holding my breath but it would be nice not to have to relocate the APRS antenna.

Richard (n7rig) was the real winner this weekend, getting two small prizes ($10 at the booth of the guy with all the soldering equip. and a free pizza at a local place).  

But the biggie was when he came away with a Yaesu VX-3R handheld at the main drawing.

Pictures are here:

http://wetnet.net/gallery/v/2011-06-03/

and here:

http://wetnet.net/gallery/v/2011-06-04/

and here.

http://wetnet.net/gallery/v/2011-06-05/

Man that Eye-Fi SD card for my camera is great. :-)

 

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DCC Day Two - Codec 2:

Bruce Perens, K6BP - Codec2: An Open Future for Digital Voice

Bruce outlines his plans for an open non-propriatery voice codec for amateur radio applications.

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DCC Day Two - SDR Cube

George Heron N2APB and Juha Niinikoski, OH2NLT - SDR Cube: A portable SOftware Defined Radio Utilizing An Embedded DSP Engine for Quadrature Sampling Transceivers

George and Juha have designed a complete SDR transceiver in a 4" x 4" cube.  It contains a Softrock RxTx v6.3 and an embedded DSP controller a graphic LCD display and all controls.

It also allows connecting the NUE-PSK Digital Modem for various digital data modes.

They expect to cell kits and assembled versions sometime in the next couple of months.

More info at: http://www.sdr-cube.com

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DCC Day Two - Teaching D-RATS about AX.25 and WInlink

Dan Smith, KK7DS - Teaching D-RATS about AX.25 and WInlink

Dan gave a very nice talk with some background on D-RATS and whyAX.25 support might be desirable.

For about a year D-RATS has supported D-RATS frames stuffed into a kiss frame.  This has allowed the use of kiss mode tnc's but without AX.25 you can't digipeat or make use of any ax.25 infrastructure.

The current design does not implement (or ever will) AX.25 layer three it simply wraps it's frames in a AX.25 UI frame.

More info at: http://d-rats.danplanet.com/

 

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DCC Day Two - Digital ATV using DVB-S

Ken Konechy, W6HHC and Robbie Robinson, KB6CJZ - Testing a Digital-ATV Station using DVB-S

A very nice discussion by Ken about creating an ATV station using the DVB Satellite broadcast standard.

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DCC Day Two - Bidirectional Low Frequency Transverter

Alex Schwarz, VE7DXW - Bidirectional Low Frequency Transverter (Bi-LIF) Computer Interface for Demodulation and Modulation of Radio SIgnals

Alex outlined a Software/Hardware system that allows you to use current or older HF gear with an SDR based replacement for the original mod/demod section of the rig.

Essentially what he's doing is tapping into the receiver IF and using SDR techniques to provide demodulation on receive, and also tapping into the transmitter section to modulate.   Couple this with PC software to control the radio and do the mod/demod and you have some of the benefits of SDR applied to older radios.

Boards and kits available.

More info at: http://kenai.com

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DCC Day Two - WINMOR Phase 2

Rick Muething, KN6KB/AAA9WK - WINMOR Phase 2: Demonstration to Deployment

WINMOR (WINlink Message Over Radio) is a replacement for the proprietary Pactor protocols in Winlink networks.  It uses standard PC's and soundcards to impliment an ARQ protocl that approaches Pactor 2 and 3 in performance yet is freely available and can be implimented anywhere on any OS.

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