OPERATION & MAINTENANCE GUIDE 315 MHz High-speed Smart Repeater Mode Selector Switch Batteries Power Switch Status Indicator Antenna HOLATRON SYSTEMS, LLC 833 ILANIWAI ST., STE. 3 Honolulu, HI 96813 (808) 732-5419 www.holatron.
WARNING Holatron Systems specializes in the design and manufacture of standard and custom electronic control systems where reliability and error free data communication are critical. The repeater described in this manual is part of a system intended to remotely actuate pyrotechnic or other hazardous devices, and the components of this system have been carefully designed to minimize the possibility of accidental actuation of such devices.
INFORMATION TO USER This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) This device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested, assigned FCC ID number OI4RPTR315, and found to comply with the limits for Class B Digital Device, pursuant to Part 15 of the FCC Rules.
This manual is divided into four sections. The first is a description of the system hardware. The second describes radio interference suppression methods. The third lists device specifications. The fourth covers the recommended operating and maintenance procedure. 1.0 HARDWARE DESCRIPTION. The model RPTR315 high-speed smart repeater can be used to extend the range or enhance the coverage of standard Holatron systems operating on 315 MHz.
The user has access to the following components (refer to annotated cover photo): 1.1 THE ANTENNA. The RF signal is received and retransmitted by a single quarter-wave screw-on antenna. The circuit board acts as a ground plane for this antenna. Both are contained within the repeater enclosure and will operate with undiminished range even when the lid is closed.
The functionality of this indicator is summarized in the following table: Status Indicator Table Flash Pattern Color Status 3 flashes Green Battery normal 2 flashes Green Battery reduced 1 flash Green Battery critically low No flashes None Battery excessively low, or dead Continuous (1 sec or more) Green Preamble & sync signal rcvd (can be triggered by background noise) Rapid flashing Green Holatron command being received on a channel that is different from switch selection Rapid flash
1.4 THE MODE SELECTOR SWITCH. This 16 position miniature rotary switch, located on top of the internal circuit board as shown in the cover photo, is used to select one of 16 possible repeater operating modes. It can be set to positions 0 – 9 or A – F by rotation with a small screwdriver.
2.0 RADIO INTERFERENCE REDUCTION. . For obvious safety reasons, Holatron's design goal is to ensure that data communication errors due to radio interference or to insufficient signal strength due to low battery, exceeding specified range, or conductive objects in the signal path will result in failure of intentional receiver actuation rather than unintended actuation. This goal is achieved by transmitting a 64 bit noise-tolerant code repeatedly while a transmitter button is depressed.
3.0 SPECIFICATIONS. Parameter Carrier Frequency, MHz. Input range (line-of-sight from standard Holatron xmtrs) Output range (line-of-sight to standard Holatron rcvrs) Delay from end of rcvd packet to start of packet retransmission) Supply Voltage Battery current (standby) Battery current (xmting) 4.0 Minimum 314.95 Typical 315.00 Maximum 315.05 ½ mile ½ mile 1 msec 5 VDC 6 VDC 23 mA 26 mA 14 VDC OPERATION AND MAINTENANCE.
4.2 4.1.6 Receivers may now be turned on and armed. 4.1.7 When finished with the system, be sure to remember to turn off the repeater Power Switch to stop further drain of its batteries. If the repeater will be stored for a prolonged period of time (6 months), remove the batteries to avoid damage to the electronics from possible battery leakage. MAINTENANCE.
