Welcome to our Nation's Capital and the web home of the Network Engineers Repeater Association (NERA). NERA was founded primarily by amateur radio operators employed in the broadcasting and related telecommunications fields in the Washington Metropolitan Area. We have constructed a network of linked remote base and repeater stations in and around the region to provide clear, long-range reliable communications and invite all licensed radio amateurs to stop by and give our system a try. We support SKYWARN and ARES public service operations and we are affiliated with the American Radio Relay League.

Recent Improvements To The NERA Repeater System

We have been working to make all the systems P25 capable. Currently all NERA repeaters with the exception of Baltimore are capable of mixed mode P25 and FM . Work is ongoing to link up the repeaters on FM as well as P25.

Also late in 2012 NERA rebuilt, reactivated, and expanded the site of its currently non-linked VHF repeater in Germantown, Maryland. Located just off Interstate 270, this repeaterís antennas are at 390 feet and provide excellent coverage of Montgomery and Frederick counties, as well as some coverage into Northwest DC. Best of all, this repeater consists of two separate systems, one being analog FM and the other P25 digital. Both systems at this site are wideband. What you input to this repeater is what is transmitted, but it can only handle one mode or the other at a time. The FM analog input has a PL of 156.7, and the P25 requires an NAC of 293. Input frequency for both systems is 147.870 and the output, again for both systems, is 147.270. Our plan is that this repeater will eventually be linked to the NERA UHF system but at this time (January 2013) it is a standalone repeater. Please also note that, at this time, this repeater is open for all to use.

NERA has moved over to Groups.io for organization communications. If you are a member and need to be added to the groups.io distribution site please email WA3KOK at ARRL dot net

 

The NERA repeater system is limited to members,
visitors traveling through our coverage area and public service activities.

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NERA Repeater System

Location

Owner

Trustee

Output
 Frequency

Offset

PL

Linked
System

P25 Digital

NAC

Washington, DC WAMU

NERA

WA3KOK

449.975 MHz

- 5 MHz

107.2

Yes

Mixed Mode

293

Ashton, MD

NERA

WA3KOK

444.050 MHz

+5 MHz

107.2

Yes

Mixed Mode

293

Frederick, MD

NERA

WA3KOK

443.400 MHz

+ 5 MHz

136.5

Yes

 Mixed Mode

293 

Cacapon Mountain, VA

NERA

WA3KOK

442.450 MHz

+ 5 MHz

107.2

Yes

 Mixed Mode

 293

Fork Mountain, VA

NERA

WA3KOK

443.250 MHz

+ 5 MHz

107.2

Yes

 Mixed Mode

 293

Baltimore, MD

N3CDY

N3CDY

449.275 MHz

- 5 MHz

107.2

Future 

Mixed Mode 

 293

Bull Run Mtn, VA

NERA

WA3KOK

447.775 MHz

- 5 MHz

107.2

Yes

Mixed Mode 

 293

High Knob Mtn, VA

K4QJZ

K4QJZ

442.725 MHz

+ 5 MHz

107.2

Yes 

Mixed Mode 

 293

Halethorpe WRBS

NERA

WA3KOK

442.250 MHz

+5 MHz

107.2

Future

Mixed Mode

293

Germantown, MD

NERA

WA3KOK

147.270  MHz

+ 600 kHz

156.7

 No

P25 In - P25 Out

293


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Operating Guidelines

Good amateur operating practices are encouraged. Whenever you access the NERA system please remember to pause a moment between transmissions to allow others to join your QSO or to pass emergency traffic. This practice is particularly important when accessing other repeater systems via the IRLP or DRIL since some additional "turnaround" time is frequently required. Don't use 11 meter lingo when talking on the system. Speak normally.

If your organization desires to use the NERA system for a planned public service activity please let us know as early as possible prior to your event so the activity can be coordinated and the system configured effectively.

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