W3PGA Repeater System


Our repeaters are locatated at Kenwood High school in Southeastern Baltimore County. Our repeaters have been on the air since the 1970's. Our Repeaters are housed in the elevator room above the School in cooperation with Baltimore County School System.

Kenwood High School

Kenwood on the Map










GPS Locator 39°19′33″N 76°27′44″W FM19SG




W3PGA 2 Meter Repeater

 147.240/147.840 MHz +600

PL 123.0  Is Enabled as of August 4th, 2016

65 Watts Output

 Our Current 2 Meter System

 The center cabinet holds the W3PGA 2 Meter transmitter and controller. The top is the 70 CM Amp and blow is the 70CM duplexer and power supply's below.

The rack above is the 70 CM Yeasu Fusion repeater and the Battery backup unit. The right cabinet is for storage.

To the right is the old 70 CM System and storage.

2 Meter Receive site

This is the 2 Meter Receive site Approximately 600 the the east. A 600 foot trunk cable 6 Conductor that carry's balanced audio from the Maxtrac receiver piggy backed is the COR relay to key the transmitter when audio is heard and 120 Volt AC for the Cabinet. To the left is a Cavity filter.

View to Recieve site 600 east of Elevator Building on roof


Our repeater shutdown board. Our control link is on 70 CM simplex. The HT is a Kenwood set to our control frequency the audio is fed to the DTMF decoder board. The green pc board is an 8 channel DTMF decoder and relay unit. The smaller board above is the relay circuit for 2m and 70 CM relays to shutdown each repeater individualy with the proper DTMF Code. Once the proper code is received for a band the relay system switches the AC Off hence shutting down the Repeater. The proper code sent turns it back on. There are different codes for each repeater.

Ham Gear repeater Controller card the heart of our 2 meter system

Hamgear ID-O Matic IV repeater Controller.

MAXRAC 300 Series

Maxtrac 300 Series radios

Our battery backup will run both repeaters for approx 24 hours.

W3PGA 70 CM Repeater

449.575/444.575 MHz -5MHz

PL 123.0 Is enabled as of August 4, 2016

FM and C4FM Modes Available!

70 Watts Output

Our 70 CM Fusion C4FM DR-1X Repeater is below the UPS in the rack and the 70CM Linear Amp is in the top of of the cabinet.

Our Repeater Antennas

2 Meter Transmitter Antenna

2 Meter transmitter antenna on left.

2 Meter Receive site antenna

 2 Meter Receive Site Antenna

70 CM Receive/Transmitter Antenna

70 CM Receive/Transmitter Antenna.

W3JEH 220 Repeater system

222.240/223.840 MHz +1.5MHz No PL

Owned by Ron Distler W3JEH AERO Club Member

 Ron's Repeater is located in Perry Hall, MD

W3JEH Repeater site
GE Master 220 W3JEH Repaeter Console 220 Duplexer Side View
220 Duplexer top view
Repeater Controller 220 Linear and Power Supply

 This Site is not at Kenwood High School W3JEHsite is in Parkville MD


Overhead of Kenwood High School

Over view of Kenwood High School

receive site is to the left eleavator building is in the center

W3PGA Repeater Equipment

2 Meter 147.240/147.840

Motorola MAXTRAC 300 Series Receiver 147.840 MHz

2 amp Power Supply

147.840 WP-612 Cavity Filter

Tower and Antennas

600 FT 6 Conductor Trunk Cable

Motorola MAXTRAC 300 Series Transmitter 147.240

Hamgear ID-Omatic IV Controller

COR relays

Astron 20 Amp Power Supply

147.240 WP-612 Cavity Filter

Cooling Fans

Shutdown Module DTFM 8 Decoader/Relay

AC Isolation Transformer


70 CM 449.575/444.575

Yeasu DR-1X Fusion C4FM Repeater

Motorola T-1500A Series 440 MHz Duplexers

70 CM Linear Amp

40 Amp Trip Lite Power Supply

LMR 400 Coax

Cooling Fans

 Motorola Cabinets

Falcon ED-1000 UPS Battery Backup System


W3PGA Repeater Committee

Jerry Cimildora N3VBJ

Phil Hock W3VRD

Dave Frederick KB3KRV is our W3PGA Trustee


Back to W3PGA Webpage


Maintained by Jerry N3VBJ n3vbj1@gmail.com (C) W3PGA


Last Updated August 2016


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