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WC4PEM is the call sign for the Polk County Emergency Management/ARES/RACES operations.


Polk County, Florida is located in the West Central Florida ARRL Section. The county is located near the center of the peninsula and is the third largest (landmass) county in the state of Florida.


Polk County Emergency Management/ARES/RACES is headquartered at the Emergency Operations Center (EOC) - 1890 Jim Keene Blvd, Winter Haven FL 33880.


Weekly on air nets are held Wednesday’s at 7:30pm ET on the WC4PEM repeater system.  ARES meetings are held at the EOC the fourth Thursday of each month.


Polk County EM operates the following voice infrastructure:

A network of four linked repeaters (1 VHF & 3 UHF) provides very good coverage of the county.  The system has Echolink (3363) & IRLP (4156) connections as well.

146.985 MHz CTCSS 127.3 Hz – Dundee, FL (county wide)

444.950 MHz CTCSS 127.3 Hz – Frostproof, FL (SE, SW, & South central county)

444.625 MHz CTCSS 127.3 Hz – Davenport, FL (NE, North & East central county)

443.900 MHz CTCSS 127.3 Hz – Kathleen, FL (NW, North & West central county)

2m coverage map on left - combined 70cm coverage map on right. Maps courtesy of Radio Mobile

WC4PEM 2m repeater coverage mapWC4PEM combined 70cm repeater coverage map

Polk County EM operates the following digital infrastructure:

11 APRS digipeaters with weather station reporting & I-Gate functionality on 144.390 MHz.

Winlink RMS Packet gateway on 144.930 MHz (WC4PEM-5).

SEDAN node on 145.770 MHz (alias POLK) & the EOC has a SEDAN mailbox for messaging.


The EOC is setup with a 50’ tower to support an HF Log-Periodic (30m – 10m) and a VHF/UHF Log-Periodic (6m – 23cm).  HF wire dipoles cover the lower 160m – 40m bands.  In addition to all soundcard digital modes being available the EOC is also equipped with PACTOR capabilities up to P4 mode.  Dualband radios enable FM & D-Star operation from the EOC on 2m & 70cm.

7564580 Last modified: 2016-09-12 01:45:00, 4362 bytes

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