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29.680 MHz Repeater

The 29.680 MHz repeater provides coverage to eastern Massachusetts. The repeater is split site in the greater Boston area.

RX Antenna - Cushcraft AR10, a half wave end fed vertical located approximately 400 feet AMSL.
TX Antenna - Hustler G2537, a .64 wavelength ground plane located at approximately 400 feet AMSL.
Transmitter/Receiver - GE Mastr II 100 watt
Repeater Controller - Link Communications RLC-Club
User Access - RX 29.580 PL 131.8, TX 29.680 PL 131.8
Linking - in the future may be linked to 29.680 repeater in southwestern Maine
This will provide coverage extension into southern Maine and southeastern NH up to Conway.

53.270 MHz Repeater

The 53.270 MHz repeater provides blanket coverage to all of eastern Massachusetts and into parts of northern RI and parts of southern NH. The repeater is located about 20 miles west of Boston Massachusetts(an area referred to as MetroWest).

Antenna - ruggedized 3 dBd gain 5/8 wave over 5/8 wave vertical located at a height of 730 feet AMSL
Duplexer - Wacom 6 cavity, 4 Band Pass/Reject, 2 Band Pass
Transmitter/Receiver - GE Mastr II 100 watt
Repeater Controller - SCOM 7K
User Access - RX 53.270 MHz, PL 100.0, TX 52.270 MHz, PL 71.9
Linking System Access - (coming soon)
Here is a picture of the repeater and the duplexer . Pretty boring aye!

The 448.175 MHz Linking System provides good coverage to all of eastern Massachusetts. The system is located about 20 miles west of Boston Massachusetts(an area referred to as MetroWest).

Antenna - Telewave ANT450D6-9, 8.5 dBd gain located at a height of 700 feet AMSL
Duplexer - TXRX Systems 4 cavity, 4 Band Pass/Reject
RX Preselector - Bandpass cavity, ARR GAS-FET Preamp
Isolator Panel - Celwave PHD460, 2 stage high power isolator with loads and harmonic filter
Transmitter/Receiver - GE Mastr II 75 watts
Repeater Controller - SCOM 5K
User Access - RX 448.175 MHz, TX 443.175 MHz, PL 88.5
Here is a picture of the repeater, the duplexer, and the plumbing . Pretty boring aye!
Linking System Access - (coming soon)
IRLP Link Access - see below

The 448.025 MHz Repeater provides good coverage to the eastern Massachusetts Metrowest area. The repeater is located in Hopkinton Massachusetts. The system is sponsored by FARA(Framingham Amateur Radio Association); the site including antennas, feedlines, multicoupler, and combiner is provided by K1RJZ of Metrowest Systems; the system is maintained by WA1NVC and others.

Antenna - RX is at approximately 700 feet AMSL; TX is Hustler G6-450 6 db gain about 100 feet lower
Duplexer - Telewave Multicoupler and Combiner
RX Preselector - GLB Preselector
Transmitter/Receiver - GE Mastr II 100 watts
Repeater Controller - NHRC4-M2
User Access - RX 448.025 MHz, TX 443.025 MHz, PL 88.5
Here is a picture of the tower, repeater, and the plumbing.
Linking System Access - future plan for 147.150 MHz

The 927.5375 MHz repeater provides good coverage to the western suburbs of Boston. The repeater is located about 20 miles west of Boston Massachusetts(an area referred to as MetroWest).

Antenna - Decebel Products Model 806 6 dBd gain located at a height of 700 feet AMSL
Duplexer - TXRX Combline
Transmitter - Motorola PURC 500 300 watts(turned down to 200 watts) w/isolator
Receiver - Motorola Maxtrac modified as 902 MHz receiver
Preamp - DownEast Microwave GAs FET
Repeater Controller - Zetron Model 37
User Access - RX 902.5375 MHz, PL 131.8, TX 927.5375 MHz, PL 100.0
Here is a picture of the rear (duplexer, power supply, PA) and the front (receiver and controller).
Linking System Access - (coming soon)

The 927.5875 MHz portable repeater is used to provide coverage at major events such as Hosstraders, Near-Fest, Boxborough, and the Dayton Hamvention. The repeater is self contained in a hand carried equipment case similar to a large attache case. The antenna, mast, feedline, and base are in a small duffle like bag. This results in a package that can be carried easily by one person.

Antenna - Omni, or beam depending on the application and location on a 20 foot mast
Duplexer - small BpBr mobile duplexer
Transmitter/Receiver - Tait 2 RU package about 5-8 watts
Repeater Controller - NHRC-4
User Access - RX 902.5875 MHz, PL 131.8, TX 927.5875 MHz, PL 100.0
Linking System Access - the portable repeater is frequently linked via the NHRC controller to other repeater systems

IRLP Node 4610 is currently connected to the 448.175 MHz Linking System. Incoming calls can be answered by anyone who is listening. Outbound calls are restricted to minimize the impact on local users and radio links. Outbound traffic is provided by control operators. Control operators provide this service at their discretion.

To learn more about the Internet Radio Linking Project, IRLP, check out their home page www.irlp.net

Donations

Donations have been received from: W1BRI, W1IMD, W1DHM, N1PXA, KD1BC, N3HFK, W1OBQ, W1VON, K1NZQ, N1WPN, K1WUK, KB1CKI, WA1NLR, K1RJZ, W1KSZ, and others.

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