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Pike County Regional Communications System Project

The first stage of the project was a four Tx / Rx site, four channel voted conventional analog VHF system providing county-wide communications for all regional first responders.

We selected this format for many reasons, including the ability to immediately use over 250 existing mobile and portable radios. The project also included end-user equipment for agencies unable to provide their own conventional VHF narrow-band mobiles and portables.

All sites can operate stand-alone and all have backup utilities. 4.9GHz microwave is used for the backhaul, giving Pike County a reliable, redundant system that is independent of public utilities for power and interconnection.

The design of the system will allow Pike County to add additional receiver sites with minimal expense.

Pike Response Maps

.gif format
North West		North East
	Pike County
South West		South East

1300-BRRY	BARRY FIRE	DIST MAP
1500-HULL	HULL/K FD	DIST MAP
1700-NWCN	NEW CNTN	DIST MAP
2300-BAYL	BAYLIS FD	DIST MAP
2500-GRGS	G'VILLE FD	DIST MAP
2700-NPFD	N. PIKE FD	DIST MAP
3500-SCFD	SPR CRK FD	DIST MAP
3700-PHLL	P.HILL FD	DIST MAP
4100-PITF	P'FIELD FD	DIST MAP
4700-EPFD	E. PIKE FD	DIST MAP

ComStudy 2.2 MLS Voting Maps

RED- El Dara
GREEN- Griggsville
YELLOW- Hull
BLUE- Pea Ridge
"Most Likely Site" Voting Map - Pike County

Map Updated October 2009

Presentation PDF (Document)

ComStudy 2.2 'Field Strength' Coverage Maps
(RF Density Maps, all including 14db total environmental losses)

Pike County Radio System.pps (PowerPoint)


Portable to Any Receiver	Combined Transmitter to Portable	Combined Transmitter to Pager


El Dara Transmitter Only	Griggsville Transmitter Only	Pea Ridge Transmitter Only


Hull Transmitter Only	Barry Paging Only	New Canton Fire Private Proprietary Repeater (Not Interoperable with any other agency)

UHF ALPHA Cross-Connect Portable to Base	Pleasant Hill School/City/FD Shared Base Station	Proposed Flood Repeater

Pike Hiway Dept	And just for giggles, I applied a less stringent portable to base criterion to the Ill State Starcom System	s1 s2

Voting System Description PDF (Document)

Radio Programming Worksheet

Radio Frequency List

The All-Important item:

TECHNICAL STANDARDS (Rev. Fe)
Last revision July, 2008

Pike County Topography

Pike Regional System Status

Component		Notes
*Updated 02/15/10*
Narrow Band Conversion Schedule	Paging	20K0F3E until 09/2012, then 11K2F3E. Receive-only pagers and radios may be changed at any time after that, if necessary. Many will work in their present setting with no changes required.
	LAW	20K0F3E until 09/2012, then 11K2F3E
	ALPHA	Already Narrowband, 11K2F3E
	BRAVO	Already Narrowband, 11K2F3E
	CHARLIE	Already Narrowband, 11K2F3E
	Other Channels	Mostly 20K0F3E, conversion schedule pending individual users and agency schedule.

PAGING 155.1000 Wide 127.3 No mobile transmit allowed.	El Dara Primary	Fully Operational.
	El Dara Auto Replay	Fully Operational.
	Griggsville	Fully Operational.
	Pea Ridge	Fully Operational.
	Hull	Fully Operational.
	Barry	Fully Operational

ALPHA Mobile TX: 158.9850 Narrow! 162.2 CTCSS Mobile RX: 154.1000 Narrow! 114.8 CTCSS	El Dara Transmitter	Fully Operational.
	El Dara Receiver	Fully Operational.
	Griggsville Transmitter	Fully Operational.
	Griggsville Receiver	Fully Operational.
	Pea Ridge Transmitter	Fully Operational.
	Pea Ridge Receiver	Fully Operational.
	Hull Transmitter	Short term microwave link loss during heavy precipitation has been observed. System auto-restores. Outages on Alpha/Bravo/Law typically last less than 2 minutes. Paging is unaffected.
	Hull Receiver
	Baylis Receiver	Fully Operational.
	Pittsfield Receiver	Fully Operational.

BRAVO Mobile TX: 158.9250 Narrow! 91.5 CTCSS Mobile RX: 154.1300 Narrow! 114.8 CTCSS	El Dara Transmitter	Fully Operational.
	El Dara Receiver	Fully Operational.
	Griggsville Transmitter for BRAVO Only!	Mobile BRAVO traffic voted to Griggsville will be re-transmitted from the El Dara base tower until further notice.
	Griggsville Receiver	Fully Operational.
	Pea Ridge Transmitter	Fully Operational.
	Pea Ridge Receiver	Fully Operational.
	Hull Transmitter	Short term microwave link loss during heavy rain has been observed. System auto-restores. Outages on Alpha/Bravo/Law typically last less than 5 minutes. Paging is unaffected.
	Hull Receiver
	Baylis Receiver	Fully Operational.
	Pittsfield Receiver	Fully Operational.

LAW Mobile TX: 159.1800 Wide 123.0 CTCSS Mobile RX: 154.785 Wide 114.8 CTCSS	El Dara Transmitter	Fully Operational.
	El Dara Receiver	Fully Operational.
	Griggsville Transmitter	Fully Operational.
	Griggsville Receiver	Fully Operational.
	Pea Ridge Transmitter	Fully Operational.
	Pea Ridge Receiver	Fully Operational.
	Hull Transmitter	Short term microwave link loss during heavy rain has been observed. System auto-restores. Outages on Alpha/Bravo/Law typically last less than 5 minutes. Paging is unaffected.
	Hull Receiver
	Baylis Receiver	Fully Operational.
	Pittsfield Receiver	Fully Operational.
	Pittsfield Legacy Receiver (Supporting the Old 155.910 114.8 Mobile Tx Protocol)	Operational for mobile traffic in the immediate Pittsfield area only. All users are strongly urged to re-program their radios to current system protocols (Mobile Rx 154.7850/114.8, Mobile Tx 159.1800/123.0, 20K0F3E). Legacy protocol support after 02/15/2010 is not guranteed.

Charley Mobile TX: 458.3750 Narrow! 114.8 CTCSS Mobile RX: 453.3750 Narrow! 114.8 CTCSS	El Dara UHF Repeater & VHF cross-connect	Fully Operational. Cross connected with ALPHA
JPS/Raytheon Voting System	Default Dispatch Transmit Site:	El Dara
	Return to Default Dispatch Tx Site following mobile transmit time:	30 Seconds
	Revote Criteria	>3db improvement sustained for >1.0 seconds, all A/B/L receivers
	Alpha Transmit Steering Lock	PSAP remote or El Dara manual override
	Bravo Transmit Steering Lock	El Dara manual override only (pending WirelessUSA Upgrade completion)
	Law Transmit Steering Lock	PSAP remote or El Dara manual override
	Mobile TX PTT to Vote & Dispatch Audio RX Time	<0.125 seconds
	Total Mobile TX PTT to Base Transmitter Vote & Lock Time	<0.250 seconds

System Notices
NOTICE: 2/6/2010	A regional paging company is suspected of causing System Interference; this issue is being resolved with that company. ALPHA continues to have frequent short unintended transmissions from El Dara and Hull. Griggsville PAGING continues to have frequent short unintended transmissions. Some mobile to base traffic on ALPHA, BRAVO or LAW may have sufficient interference to cause poor audio.
*NOTICE: 2/1/2010*	All Griggsville site operations except BRAVO transmit restored.
NOTICE: 10/23/2009	3G15 (Hull EMS Crews) are cautioned that Pages for New Canton EMS (not fire) will not activate their radios/pagers IF they are set to HULL-FIRE-ONLY mode.
NOTICE: 8/1/2009	Numerous radios supplied by vendors other than B-K Electric have been found with incorrect programming on Alpha/Bravo/Law Transmit. These three channels DO NOT use the same CTCSS tone for TX and Rx. Alpha/Bravo are narrow-band 11K2F3E channels and will not perform properly in 20K0F3E wide band mode. Please advise your vendor to download the latest TECHNICAL STANDARDS (link) information and verify that their products are programmed as required.
ADVISORY NOTICE: 7/9/2009 *(Continuing 02/2010)*	*SEVERE* interference caused by sunspot activity / tropospheric ducting will continue to cause poor performance of the system with the worst time periods around dawn and dusk. This issue will continue for the next several months. Atmospheric conditions cause signals from licensed users located many hundreds of miles away and operating on our same frequencies to hit the Pike System receivers at levels at or greater than our own local users. Expect noise/static, 'foreign' voices or other unusual phenomenon during these periods.
NOTICE: 7/9/2009 *(Continuing 02/2010)*	The area along IL-100 between Pearl and Bee Creek, and along Bluff Road between Pearl and Montezuma is still under-served by any Pike System receiver. Portable users may find spotty coverage in some or all locations. Mobile users may find difficult coverage and may be required to relocate their vehicle for reliable operation. This was a known gap in the system design and will be rectified as funding becomes available.
INFORMATION: 7/9/2009	The Baylis Receive site is fully operational on Alpha/Bravo/Law. Mobile users in the Kinderhook-north areas may find that voting may move from Hull to EL Dara without warning, however Kinderhook area reception of either voted site should not be an issue.

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	Please bear with us as we develop our website. This page was last updated 02/15/10 FIREelectronics.com is a division of B-K Electric, Inc. 501 N. Federal St., Griggsville, IL 62340 217-833-2488 Bunches!

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