order to assure that communications equipment installed at the ECA site
at Mt. Ascutney North Peak is installed and maintained in a professional
manner we have established these standards and building regulations,
which conform to the applicable sections of leases between WNNE and ECA,
and between ECA and it members.
2. PRE-INSTALLATION REQUIREMENTS
Before a station can be
considered for installation frequency compatibility (intermod) a
consultant designated by ECA must do study of the applicantís
frequencies, which study will be at the expense of the applicant.† The study will show antenna type,
location, orientation and cable type. Where possible the new station will
use a combiner. The study will identify likely sources of interference
from and to applicantís equipment.†
ECAís Technical Committee will, at itís sole discretion, determine
the acceptability of the applicantís frequency or frequencies and determine
any additional filtering or combining techniques required over and above
the standards contained herein.
Each applicant shall have a FCC
license for the site, as well as all other applicable permits (i.e. Act
250). Applicant shall submit to the ECA Technical Committee for approval,
details of equipment to be installed (including makes and models), ac
load, antenna (including makes and models), and cable type, antenna
mounting locations, and layout of building equipment. In the interest of
saving floor-space, new equipment shall be of the most compact design
while maintaining good engineering practice. Cabinets are to be stacked
whenever space allows.
Each applicant will provide a
block diagram and written details of operation for the radio system. Such
diagrams will be on one or more 8 1/2" x 11" sheets, and kept
in a loose-leaf binder at the ECA site along with current copies of all
Each applicant must notify the
Site Manager one week before commencement of installation. †
3. INSTALLATION REQUIREMENTS
Before a station can be approved
for service, it must have the following devices properly installed and
meet the minimum requirements:
Transmitter shield kit
b) 30-50MHz, no
isolator required. Bandpass cavity
With a minimum
of 20db rejection at +/-0.5MHz.
isolator required minimum 60dB.
with minimum of 20dB rejection at +/- 0.5MHz.
isolator required minimum 60dB.
on the isolator output with minimum of 20dB rejection at +/- 1.5 MHz.
isolator required minimum 60dB.
on the isolator output with minimum of 20dB rejection at +/- 5.0MHz.
isolator required minimum 60dB. Bandpass
cavity on the isolator output with minimum of 20dB at +/- 3.5MHz.
isolator required minimum 60dB.
on the isolator output with minimum of 20dB rejection
at +/- 6.0MHz.
h) Hum and
spurious emissions must be -85dBc minimum for all frequency bands.
Additional interfaces and/or
isolation specifications may be required as determined by ECAís Technical
Committee. Frequency bands listed are not intended to limit the scope or
application of this section.
4. TRANSMITTER COMBINERS AND RECEIVER MULTICOUPLERS
The Technical Committee may
require a Member to install a transmitter combiner and/or receiver
mulitcoupler. Also, as a condition for permission to use the site, an
applicant may be required to use an ECA owned transmitter combiner or
receiver multicoupler.† Members and
Applicants will be solely responsible for the cost of such equipment and
its installation and such
equipment will become the property of ECA.
Combiners must provide a minimum
of 70dB transmitter-to-transmitter isolation and be properly engineered.
AND RECEIVER MULTICOUPLERS.† Because the
transmitter combiners and receiver multicouplers are used in common with
many other members, under no circumstances are members or their technical
representatives permitted to make adjustments to the ECA owned
transmitter combiners or receiver multicouplers or antenna systems
without the express approval of the Site Manager. Should a member or his
representative determine there is a problem with an ECA owned combiner,
receiver multicoupler or antenna system, they are to contact a member of
the Technical Committee and ask for direction.
receivers must meet or exceed manufacturers' original specifications, and
be of good engineering design with consideration given to a high RF
environment.† Receivers not meeting
these requirements may be installed at Memberís sole peril. Solely the
Technical Committee will determine receiver suitability.† The Technical Committee shall be the
sole arbiter in cases of receiver interference and reserves the right to
require changes to Memberís installation.†
The cost of such changes shall be negotiated in good faith by all
parities with the Technical Committeeís assistance. Members not willing
to negotiate in good faith may be asked to leave the site.
shields must remain in place.† All
speakers will be turned off except during maintenance.
All equipment, including
but not limited to duplexers, isolators, cavities and switches shall be
located inside grounded cabinets. Properly shielded devices may be
mounted in grounded relay racks with permission of the Site Manager.
Cabinet doors must be in place,
closed and locked. Keys and lock combinations will be provided to ECA
Technical Committee on request for the purpose of inspection.
and relay racks must be bonded to the ground system with at least #6
stranded copper. Cabinets, which are stacked, must be fastened to each
other with hardware and to an overhead structural member (cable tray,
beam) to prevent overturning.
All antenna coaxial
cables shall be jacketed, solid outer conductor type such as Heliax.† No aluminum or single-braided cables
will be permitted as antenna feeders.†
Short jumpers from the feeder cable to the antenna may be flexible
double shielded coaxial cable. Antenna cables must be tagged at building
entry with a permanent tag identifying owner and cable's destination on
the tower. We strongly suggest color coding and tagging of feeder cables
at the antenna, the base of the tower, at the cable entry to the building
and at Memberís equipment. Cables run down the tower and dead-ended to be
used later as a spare are not allowed.†
Any unused coax cables will be tagged, with center and outer
conductors connected to building ground system.† All antenna feeder cables will be
terminated inside the ECA space in the building.
All feeder cables will be
attached to the tower with reusable stainless steel ties, or reusable
plastic coated ties such as "Band-it" ties, at intervals a
maximum of 3 feet apart.† Where
provided, feeder cable will be attached to a cable ladder using stainless
steel butterfly cable hangers bolted to the ladder.† Snap in hangers will not be permitted
at this site due to high wind and severe icing conditions.
Antenna feeder cables shall
terminate inside the building at an ECA provided grounding plate.† Memberís cabinet is to be 100%
shielded.† Rack mounted equipment
must be supplied with 100% shielded cables.
All cables exiting from Memberís
cabinet are to be 100% shielded.†
Rack mounted equipment must be supplied with 100% shielded
cabling must be run in the cable tray provided.
AC lines must be 3 conductor and
terminate in a Twistlock 2310 plug or exact replacement. Receptacles and
associated circuit breakers must have the same numbers. Under no conditions
is one station to be plugged into a convenience outlet of another
station.† Rubber AC cords must be
kept in safe working condition with no cracks in the outer jacket.
to any feeder cable installation or removal in the outdoor cable tray,
notification to the ECA Site Manager shall be made one week in advance of
such work. Precautions shall be taken not to damage or interfere with any
existing cables in the cable tray or the mounting stanchions. The Member
shall be responsible for any damage done, and shall be financially liable
for the cost of repairs.
8. ANTENNAS AND MOUNTS
may not be welded to the tower. Drilling or cutting into any tower member
is not permitted.† All metal mounts
and supporting structures will be stainless steel, or hot-dipped
galvanized. Any hot-dipped galvanized pipes or brackets, which have been
field cut, must be sprayed with two or more coats of cold galvanizing
paint or stainless steel paint.
Antenna mounting systems will be
engineered and constructed in such a way that they are firmly fastened to
the tower and will not be subject to damage from falling ice or move
excessively due to ice and wind.
Antennas longer than 60 inches
must be attached to a tower member or support pipe at top and bottom.
The Technical Committee reserves
the right to accept or deny any Memberís proposed antenna mounting
scheme, or to require modifications to the proposed mounting scheme, or
require a tower loading study to ensure the integrity of the supporting
tower.† All costs for any of the
above shall be born by Member solely at its expense.
antenna mounts age, Member may be required to repair or replace any
antenna mount or hardware that exhibits rust.† The Technical Committee shall advise
Member of the need for repair or replacement.† Member will take immediate action to
correct the situation.
9. BUILDING REGULATIONS
to the building will be permitted only through a key or pass issued to
each service person or shop doing maintenance for ECA companies.
the responsibility of each and every ECA member to keep a copy of their
FCC license in the binder along with an up to date block diagram.
All areas in and around tenants'
equipment shall be kept clean and neat at all times. Each tenant's trash
and other unused materials shall be removed from the site immediately and
not stored on the premises.
Small items such as hand tools,
test equipment and work materials, if left at the site, must be stored
inside radio cabinets.
Food and drink are permitted on
the premises, but all related trash must be removed the same day it is
No smoking, open flame, welding,
volatile solvents or alcoholic beverages will be permitted on the
not use the premises for lodging or sleeping.
Tenants shall not allow or authorize
entry onto the premises to any person not performing maintenance work for
10. FAIL TO COMPLY
the event any Member fails to comply with these Site Standards, and at
the Site Managerís discretion, a written notice will be sent requesting
conformance within a stated period.†
In the event of written notice and continued lack of compliance
with the Site Standards, Member will be considered to; repudiate membership
in ECA or otherwise withdraw from certain lease agreements it has with
the corporation with respect to a communications building and tower
located at Mt. Ascutney, Vermont and forfeit rent paid for the period of
the lease. And Member must remove all equipment from the building, the cable-tray
and the tower.
ACCEPTANCE AND AGREEMENT
agree to comply with and accept all the provisions of the Site Standards.
The Members shall have the option of accepting the Site Standards, the
decisions of the Technical Committee and/or the Site Manager or leaving
TECHNICAL COMMITTEE AUTHORITY
The ECA Technical
Committee has final authority with respect to technical parameters of ECA
equipment at the Mt. Ascutney site, including placement of equipment within
the building. Antenna location shall be determined by agreement between
Committee and WNNE.
ECA Technical Committee:
††††††††††††††††††††† † R. C. Trott, PE †††††††††††† †214-580-1911
††††††††††††††††††††††† Joe Truss††††††††††††††††††††† 802-439-6178
Barden†††††† †††††††††††† 603-352-1825
††††††††† ††††††††††††† Paul Alberghini† †††††††††††† 207-829-4512
Sullivan†††††† †††††††††††† 603-369-0103