ARRG
Amateur Radio Relay Group, Inc.
An Oregon Non-Profit Public Service Team since 1977
Operating the K7RPT Repeater System

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The K7RPT

System Fusion C4FM Page

Amateur Radio Relay Group, Inc.

 

 Of the 17 wide area repeaters that ARRG owns and operates, we currently own and operate three

Yaesu System Fusion (or C4FM)  analog/digital repeaters.

 

Our main System Fusion repeater is on 442.225 + 100.0 Hz. This system is located at our Sylvan Hill site and is the antennas are mounted on the 850' tall KOIN TV Transmitter tower. This repeater covers the entire Portland metro area.

 

A secondary System Fusion repeater is on the 442.250 + 100.0Hz frequency pair as is  located on Bald Peak, courtesy of both W7PM and K7ZS.

 

The third System Fusion repeater operates on 442.350 + 100.0Hz. This repeater is portable and is used for our System Fusion presentations and for Public Service events, like the OMSI Maker Faire, the Cycle for Life Ride and at the annual SEAPAC convention. The repeater is often on the air and located on W7PM's tower in Aloha, Or.

 

All three repeaters are the  'second generation' System Fusion repeaters and operate in AMS, or Auto Mode Select. This allows the repeaters receiver to auto select FM or Digital and then retransmits the same mode, depending on the received signal.

 

These repeaters are open to all users, Analog FM or C4FM Digital on a co-shared basis.

 

Current Analog FM users will not be affected and can use 442.225 as before

 

If  analog only users don't wish to hear the digital data stream over their rigs speaker, the FM user may wish to program their radios with full CTCSS (encode and decode) to help alleviate unwanted noise. Employing full CTCSS will allow any analogue user to mask the digital data as is passes over your receiver.

 

If you don't program your rig to full CTCSS and you happen to turn on your rigs scanning function, any digital traffic that comes across 442.225 will lock on the channel and all you will hear is a very loud loud white noise, which can be annoying. The actual C4FM signal sounds like like a starts/stop tones, followed by a very loud white noise hiss until the digital user unkeys.   With full decode on, your rigs scan feature should fly right past 442.225, unless there's a FM conversation occurring.

 

It should be noted that both the analog FM and Digital user will be co-sharing the three repeater pairs, but only ONE conversation can exist on the repeater pair at one time. If you hear a digital noise on the channel, and your S meter is showing a  strong, yet unintelligible signal AND you wish to break in or make an emergency call, keying up in between their transmissions with any analog transmission will automatically force everyone's Digital radios (including the repeater) back to Analog FM mode.

 

In our particular situation, ARRG programmed all of our System Fusion repeaters to always favor any incoming FM analog signal.

 

No matter what mode you are using to access the new System Fusion repeaters; all users should remember to check your rigs busy light or S Meter OR hit your monitor button prior to making a analog FM call. Good operator do this to make sure that they are not accidently interfering with an ongoing digital conversation.

 

Questions about the C4FM System

 

So I'm still analog and have no plans to buy a new radio,  how will this affect my use of the ARRG System Fusion Repeaters?

 

Normal FM users will be able to co-exist with new digital radio users. The Yaesu System Fusion DR-1X repeater will automatically select the proper incoming mode and pass normal analog traffic or the new digital traffic automatically.

 

Part of the test is the Fusion's ability to coexist with FM analog signals. FM users; just place your radio into full encode/decode to mask out any digital conversations. Please watch your busy light and hit your monitor button before transmitting.

 

Digital users are required to run their rigs in AMS (auto mode select) mode. That way an analog user can jump in and say 'break' in-between digi transmissions. In this example, the analog FM user key's up the DR-1X repeater and this will normally force the DR-X repeater and other users listening in the AMS mode back over to regular analog FM.

 

 

Technical Support for Digital Radios

 

All System Fusion radios, (FTM-400DR mobile, FT1D and FT2D) radios can operate in fixed FM mode, DN (Digital Narrow @ 6.25 KHz ) or VW (Voice Wide 12.5 KHz signal).

We suggest running your system fusion rigs in the AMS mode to better co-exist with regular FM users.

 

Using the AMS mode (there is a display bar that appears over the FM/DN/VW) icon on the mobile and a rectangle bar to the left of the FM/DN/VW icon on the walkies.

 

Note: When using  any of the the K7RPT System Fusion repeaters:, please announce in regular FM - that you'll be using the digital side of the repeater.  

 

Current Oregon & Regional System Fusion Repeaters 

Please add your Fusion Repeater to this growing list, contact Marc Peterson, W7PM to be added at w7pm@live.com

 

Portland Metro Area

 

 ARRG SYLVAN HILL - KOIN TV TOWER

442.225 + 100.0 Hz

Digital Group: Open - No Code

Status: On Air - AMS mode

 

W7PM and K7ZS System on Bald Peak

442.250 + 100.0 Hz

Digital Group: Open - No Code

Status: Testing right now On Air - AMS mode

 

K7RPT Special Event Repeater

442.350 + 100.0 Hz

Digital Group: Open - No Code

Status: AMS - On W7PM's tower in Aloha, OR.

 

 PARC System Mt. Scott

147.180 + No tone

Digital Group: Open - No Code

Status:  AMS mode

 

West Hills - KGON CARS

146.700 - 100.0 Hz

Digital Group: Open - No Code

Status: On Air - in FM, Unknown Digital

 

Salem

444.950 + 100.0 Hz

WA7ABU Silver Falls - Salem Area

Digital Group: Open - No Code

Status: On Air - AMS mode

 

Salem - Prospect Hill

441.2750 + 100 Hz

W7SRA

Digital Group: Open - No Code

Status:  AMS mode

 

Oregon North Coast

 Astoria, Seaside and SW Washington

145.450 - 118.8 Hz

W7BU Sunset Empire Amateur Radio Club

Located on Megler Hill

Digital Group: Open - No Code

Status: On Air - AMS mode

 

Vancouver, Washington

443.900 + 94.8 Hz 

KB7APU Larch Mountain

Digital Group: Open - No Code

Status: On Air - AMS mode

 

North Eastern Oregon

146.9800 - 100 Hz

W7GRA Grande Ronde Hospital

Digital Group: Open - No Code

Status: On Air - AMS mode

 

147.000 + 103.5 Hz

KB7DZR  Joseph Wallowa

Digital Group: Open - No Code

Status: On Air - AMS mode

 

146.800 - 123.0 Hz

WF7S Elgin, Sprout Springs

Umatilla Ski Resort

Digital Group: Open - No Code

Status: On Air - AMS mode 

 

Upcoming System Fusion Classes and Seminars

 

As part of our ongoing educational services, ARRG is available to present our System Fusion presentation concerning ARRG and our advancing technologies and includes bringing our portable System Fusion repeater and walkies for your members work with and learn about. Please contact Marc Peterson, W7PM w7pm@live.com if your group would like to schedule ARRG to come and talk at your club meeting.

 

Misinformed Email of the Year!

 

Unfortunately, there is always misinformed hams who are scared of progress or new things Ham.

They somehow feel like groups that own, operate and beta test any new technology are somehow ruining Amateur Radio for them. This could not be further from the truth.

 

Our System Fusion system has been in place for three years now and we are very happy to report that our FM and Digital C4FM users co-exist beautifully on the same repeater pairs.

 

So it is disheartening to receive an email like the one we received on November 6th, 2016, from an Amateur Operator who doesn't even live in our area and never owned or operated a System Fusion repeater.

Dear ARRG,
Here's what's wrong with the thinking of the proponents of System Fusion. As you see as you read the ABOVE LINK, their attitude is, "Here we come, YOU move over and make room for us by putting your rig in full encode/decode mode."
 
Of all the nerve!
 
They try to sound nice and congenial by saying analog will still be available. What if people have commercial rigs that will have to have expensive re-programming just to not be tormented with the digital hash? What if their ham rigs simply DON'T HAVE receive PL coding, and perhaps they run something like CommSpec SS-64 encoders for transmit.
Do those people have to just put up with "smokers?"
 
You see, the biggest problem with System Fusion isn't the questionable quality of the equipment. The larger problem is the ATTITUDE of its users that they somehow have priority over the rest of us. To them I say they should go to the "smoking section" and puff away!
 
BT from Maryland  


2016 Washington State Frequency Guides

Freq

Offset

Tone

Location

County

Call

Use

  145.2100

-0.6 MHz

100.0

Forks, Police Department

Clallam

W7FEL

OPEN

  145.2100

+2.78 MHz

D023

Mazama, Edelweiss Community

Okanogan

NO7RF

OPEN

  145.2300

-0.6 MHz

146.2

Graham

Pierce

N3KPU

OPEN

  145.2900

-0.6 MHz

 

Spokane, Spokane International Airport

Spokane

K7MMA

OPEN

  145.4500

-0.6 MHz

118.8

Chinook, Megler Mountain

Pacific

W7BU

OPEN

  146.6400

-0.6 MHz

100.0

Kennewick, Johnson Butte

Benton

W7AZ

OPEN

  146.7600

-0.6 MHz

100.0

Port Angeles, Striped Peak

Clallam

W7FEL

OPEN

  147.1600

+0.6 MHz

103.5

Bellingham, King Mountain

Whatcom

K7SKW

OPEN

  147.1800

+0.6 MHz

103.5

Everett

Snohomish

WA7LAW

OPEN

  441.1500

+5 MHz

123.0

Snohomish

Snohomish

KG7QPU

OPEN

  442.6000

+5 MHz

100.0

Spokane

Spokane

N7FM

OPEN

  442.7250

+5 MHz

D125

Mill Creek

Snohomish

WR7DS

OPEN

  442.7500

+5 MHz

146.2

Tacoma, Madigan Army Medical Center

Pierce

KE7YYD

OPEN

  442.9000

+5 MHz

103.5

Seattle

King

WA7LZO

OPEN

  442.9250

+5 MHz

 

Federal Way

King

WA7FW

OPEN

  442.9250

+5 MHz

100.0

Otis Orchards

Spokane

NV2Z

OPEN

  442.9500

+5 MHz

103.5

Federal Way

King

WA7FW

OPEN

  442.9750

+5 MHz

103.5

Snohomish, Clearview

Snohomish

WA7DEM

OPEN

  443.0500

+5 MHz

D071

Bremerton

Kitsap

N7MTC

OPEN

  443.3250

+5 MHz

 

Airway Heights

Spokane

W7TSC

OPEN

  443.3500

+5 MHz

103.5

Kent, Emerald Park Elementary School

King

K7CST

OPEN

  443.5250

+5 MHz

 

Spokane

Spokane

WA7DRE

OPEN

  443.6500

+5 MHz

103.5

Bellingham, King Mountain

Whatcom

K7SKW

OPEN

  443.8250

+5 MHz

94.8

Vancouver, Peace Health - Memorial Health Center

Clark

W7AIA

OPEN

  443.9000

+5 MHz

94.8

Vancouver, Larch Mountain

Clark

W7AIA

OPEN

  444.5750

+5 MHz

103.5

Everett

Snohomish

WA7LAW

OPEN

  444.7250

+5 MHz

123.0

Edmonds

Snohomish

NW7DR

OPEN

  444.8500

-5 MHz

D023

Mazama

Okanogan

NO7RF

OPEN

  444.8500

+5 MHz

D023

Winthrop, Horizon Flats

Okanogan

NO7RF

OPEN

  444.9000

+5 MHz

131.8

Sequim

Clallam

K6MBY

OPEN

Combined Washingon/Canada YSF Regional Repeaters

147.320 MHz +   88.5 Hz VE7RSI SSI

442.725 MHz + 100.0 Hz WR7DS Everett WA

147.340 MHz + 107.2 Hz VE7SUN Delta

146.980 MHz  - 141.3 Hz VA7ANI Ladysmith

442.500 MHz + 100.0 Hz VA7REF Richmond

442.325 MHz + 127.3 Hz VE7VHF Burnaby

444.725 MHz + 100.0 Hz Edmonds WA

443.000 MHz + 141.3 Hz VE7GEC Gabriola Island

146.760 MHz  - 100.0 Hz W7FEL Striped Pk

444.850 MHz + 100.0 Hz VA7FE Victoria

147.240 MHz + 100.0 Hz VE7RFR Victoria

442.700 MHz + 100.0 Hz VE7RFR Victoria

147.000 MHz +   77.0 Hz VE7SQR Squamish

444.900 MHz + 131.8 Hz K6MBY Sequim WA

146.640 MHz - 141.3 Hz VE7ISC Nanaimo

145.130 MHz - 100.0 Hz WF7W Port Angeles WA (FM/C4FM in and FM only out)

145.210 MHz  - 100 Hz W7FEL Forks WA

444.975 MHz  - 123 Hz VE7SKY New Westminster

146.610 MHz  - 110.9 Hz VE7RVA Abbotsford