Introduction

The K7ICU repeater is located at the base of the Catalina Mountains about 350 feet above average Tucson terrain. It is an open system providing coverage to the greater Tucson area. Backup battery power is automatic during a utility power outage (linked repeaters do not have backup power at this time).

The system uses delayed/COS gated receive audio, reverse phase burst CTCSS (Motorola 120° phase shift), a CTCSS dropout timer and a squelch tail hang timer to eliminate squelch noises on any tone squelch enabled receiver. CTCSS is also not encoded during voice or CW ID and DTMF tones will not pass through the repeater. Use the DTMF Regenerate function (see DTMF Commands) to pass DTMF tones for paging or to command a linked repeater.


Linked Repeaters

KC7CPB/R
448.000 MHz, -5 MHz, 100.0 Hz
Avra Valley / Marana
- FULL TIME LINK -

N7ZQT/R
449.625 MHz, -5 MHz, 123.0 Hz
Vail
- FUTURE LINK -

Predicted Coverage Plot
(K7ICU/R ONLY)


(click for larger image)
DTMF Commands

2222
Open NOAA Weather Receiver

4444
Record & Playback
(Speak as soon as you hear "READY")
3333
Close NOAA Weather Receiver

5555+Digit(s)
DTMF Test
(Decodes 0-9, A-D, #, *)

#+Digit(s)
Regenerate DTMF Tone(s)
(Use for DTMF paging, sending commands to a linked repeater, etc.)
System Block Diagram


Live Streaming Audio & Audio Archives

Several types of live audio streams are available from our feed on Broadcastify.

MP3 audio recordings from the last 10 days are available in the Audio Archive.

Contact

Contact any of us on the air or by e-mail:

James K7ICU
k7icu@k7icu.com

Stan N7ZQT
stan@vailaz.com

Cort KC7CPB
kc7cpb@n0de.org