NHRC Information Index

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Maintained by Kevin Custer W3KKC
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Effective March 28, 2021, NHRC Repeater Controllers ceased all operations.
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Modification Articles for NHRC Controllers

A feature comparison chart of the various NHRC controllers (offsite link)

PL and the NHRC-2 or NHRC-3 Controllers A modification for allowing a PL decoder to be used. by Kevin Custer W3KKC

PL and the NHRC-4 Controller A modification for allowing an active-high PL decoder to be used. by Kevin Custer W3KKC

PL only during COS with the NHRC-3/M2 and the TS-64 Allowing keyed encode with reverse burst by Kevin Custer W3KKC

PL only during COS with the NHRC-4/M2 and the TS-64 Allowing keyed encode with reverse burst by Kevin Custer W3KKC

PL only during COS with the NHRC-4 and the ST-139 A GIF image showing keyed encode with reverse burst by Eric Vincent VE2VXT. See next file.

PL only during COS with the NHRC-4 and the ST-139 A PDF version showing keyed encode with reverse burst by Eric Vincent VE2VXT. See previous file.

A COR inverter (local copy) Original location at the NHRC web site Some of the controllers (like the NHRC-5) do not offer a low-going COR signal input (i.e. they only accept a high-true input). This circuit, when placed in front of the controller, will fix that.

NHRC Manuals and Application Notes Manuals for NHRC controllers, accessories, & other equipment.

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This page originally posted on 11-Dec-2006

This web page, this web site, the information presented in and on its pages and in these modifications and conversions is © Copyrighted 1995 and (date of last update) by Kevin Custer W3KKC and multiple originating authors. All Rights Reserved, including that of paper and web publication elsewhere.

	A feature comparison chart of the various NHRC controllers (offsite link)
	PL and the NHRC-2 or NHRC-3 Controllers A modification for allowing a PL decoder to be used. by Kevin Custer W3KKC
	PL and the NHRC-4 Controller A modification for allowing an active-high PL decoder to be used. by Kevin Custer W3KKC
	PL only during COS with the NHRC-3/M2 and the TS-64 Allowing keyed encode with reverse burst by Kevin Custer W3KKC
	PL only during COS with the NHRC-4/M2 and the TS-64 Allowing keyed encode with reverse burst by Kevin Custer W3KKC
	PL only during COS with the NHRC-4 and the ST-139 A GIF image showing keyed encode with reverse burst by Eric Vincent VE2VXT. See next file.
	PL only during COS with the NHRC-4 and the ST-139 A PDF version showing keyed encode with reverse burst by Eric Vincent VE2VXT. See previous file.
	A COR inverter (local copy) Original location at the NHRC web site Some of the controllers (like the NHRC-5) do not offer a low-going COR signal input (i.e. they only accept a high-true input). This circuit, when placed in front of the controller, will fix that.
	NHRC Manuals and Application Notes Manuals for NHRC controllers, accessories, & other equipment.