Purposed Mud Bay Remote Site Repeater KL7SRK [Sitka Ham Amateur Radio Klub]
Mud Bay is an ATT remote site on Kruzof Island, elevation approximately 900 feet, at 14 miles from down town Sitka.
1 - 22 - 2018
The City of Sitka has adopted the
NIMS organization methods, and aligned itself with the Incident Command
System Organization Structure ICS.
Sitka Amateur Radio Emergency Services ARES may act as a
"resource" for the Incident Command System, and within the Logistics
Section as a "Communications Unit."
Where multiple agencies are operating together, the weakness has been inter organizational communication.
The normal intra agency channels of communications are quickly filled
with traffic, and inter agency communications suffers at the Incident
The SHARK Sitka Ham Amateur Radio Klub was approached and queried if we
could begin taking the ICS courses and also build our systems with the
goals of wider more reliable coverage.
The SHARK group responded with a very strong turn out for the first
classes and certifications for ICS courses 100, 200, and 700, having
several of our local members already experienced in this.
We are thus now investigating the possibility of locating a repeater
for this service at the ATT Mud Bay site as it would approximately
double our present coverage area for the 440 MHz band.
As our first repeater at higher elevation, we expect this to make us a more valued resource for emergency services.
Since ATT owns and maintains this site, they will become an
essential partner, to accomplish our goal, and this will
hinge on their decision to allow our repeater presence there.
Amateur equipment is privately owned, and operated as a voluntary
service during times of emergency, for which all Amateurs will observe
this as priority traffic.
We wish to maintain the high standards of installation of a
professional site, and will supply what ever is required to meet those
David Lowrance AL5X
Relocation of existing repeater to Mud Bay "sender cone." Approximate Lat Lon 57° 9'10.22"N 135°38'46.68"W
Increase range of Amateur Radio Emergency Services ARES coverage
to end of Halibut Point Road, and surrounding water access routes to the North,
South, and West of Sitka.
Mud Bay to Sitka Downtown 14 miles
Mud Bay to Ferry Terminal 10 miles
Mud Bay to Peril Straight 32 miles
Mud Bay to Kanga Bay 22 miles
Motorola Radius GR1225 ~ 45 watts ERP
444.000 Mhz + Tone 167.9
Power 120 vac 5A Fuse
This simple Analog unit has been reliably in service for several years without failures to date.
It recovers reliably from power outages, although has not been configured for battery operation.
Unit contains a duplexer slid into the left side from the rear with the cover removed.
An AC power unit, converting to 12 vdc, a cooling fan, and a UHF radio unit.
1) GR-1225 Rack Mounting Hardware - 19 " rack mounting solution.
1 ea 19" Relay Rack Shelf
2 ea 4U extenders
2) Antenna Type and Model Diamond X50NA [5.6
feet tall, 3-5/8 wave, 7.2 db gain, rated for 135 mph
winds, Type-N connector] Ordered 1 - 16 - 2018
Antenna Mounting Hardware for mast.
3) Feed line distances LMR 400
Repeater to PolyPhaser Distance? [N connectors male male]
Poly Phaser to Antenna Distance? [N connectors male male]
4) Lightening arrestor PolyPhaser N connectors
5) AC Power Filter -Tripp-Lite Isobar 2-Outlet Surge Protector [Ordered 1 - 16 - 2018]
6) Laptop with Windows XP for GR-1225 programming, with backup run file, now on site.
7) Maintain data and photos of remote equipment for technical support.
KL4EL 907 - 623 - 7266
firstname.lastname@example.org [ARES Team Leader]
AL5X 907 - 747 - 8348
email@example.com [Staging of Equipment 711 SMC Sitka]
Benjamin Downing KL2UF 907 - 747 - 8636 firstname.lastname@example.org [Technical]
ATT Tech Juneau:
Jeffrey Deaner KL7JVD 907 - 723 - 8689 email@example.com [Site Logistics]
Sitka SHARK Officers:
President Darryl Ault AL7BW 907 - 738 - 4539 firstname.lastname@example.org [KL7SRK Repeater LicenseTrustee]
Vice President Benjamin Downing KL2UF 907 - 747 - 8636 email@example.com
Secretary Treasurer April Ault KF6BMF 907 - 738 - 4559 firstname.lastname@example.org [Club Records]
Web Page Admin -
David Lowrance AL5X 907 - 747 - 8348 email@example.com