Go to the
SiliconValley GeoCities
The JASPER Digipeater TNC is a Kantronics® KPC-9612 dual port TNC. It supports both 1200 and 9600 Baud as well as digital paging.
Back to Image
Back to Repeater Page
Back to Digipeater Page
The power supply is an Astron RS-35M, 13.8 Volts@35 Amps. The power supply powers both the UHF repeater and the digipeater.
Back to Image
Back to Repeater Page
Back to Digipeater Page
The transceiver is a standard Motorola Micor® which has been modified for repeater use. The repeater modification allows the transceiver to transmit and receive simultaneously. A spare transceiver is available to allow quick replacement in the event of a failure.
Back to Image
Back to Repeater Page
Back to Digipeater Page
The transceiver is a standard Motorola Micor® which has been modified for 1200/9600 Baud packet use. The transceiver does not have a receive pre-amp installed, however, the receiver sensitivity is still less than .25 uV@20dB quieting. A spare transceiver is available to allow quick replacement in the event of a failure.
Back to Image
Back to Repeater Page
Back to Digipeater Page
The repeater controller is an ACC RC-85 microprocessor controller housed in an aluminum case. The single board provides all of the repeater functions, timers, phone patch, etc. All of the inputs and outputs are connected through a single 25 pin "D" connector to allow easy removal and replacement of the controller with a spare unit.
Back to Image
Back to Repeater Page
Back to Digipeater Page
The duplexer cannot be seen well in this image since it is covered with a large trash bag to keep out dust and debris. The duplexer is a Telewave, 4 cavity model. It basically provides isolation between the receiver and the transmitter and combines the two into a single antenna. By the way, the antenna (not shown) is a Hustler G-6 2/70 dual band and is shared between the UHF repeater and the digipeater. The antenna is fed with 7/8" Andrew Heliax® feedline.
Back to Image
Back to Repeater Page
Back to Digipeater Page
This is commercial equipment that is also located at the repeater site
Back to Image
Back to Repeater Page
Back to Digipeater Page
There's certainly nothing fancy here! The shelf that the equipment is sitting on is constructed from a scrap piece of rough lumber sitting on two concrete blocks.
Back to Image
Back to Repeater Page
Back to Digipeater Page
© 1997 [email protected]
Go to the
SiliconValley GeoCities