Sine Systems has a demo system to give you a better idea of how the RFC-1/B works. Our demo "transmitter" facility has two 25 kW FM transmitters; a main and an auxiliary. To operate the demo facility:
- Call (615) 777-RFC1
- After the RFC-1 answers you will hear the word "Enter."
- Enter the Main Security Code: 12345678. After you do this the RFC-1 will say "This is RFC-1/B" and you have access to the system.
To read a telemetry channel (meter), enter a two-digit channel number such as 00. If you wish to control equipment at the facility, enter the Control Security Code: 66. Here is a list of what is available at the demo facility:
Telemetry/Status Description
Lower/Off (*)
Raise/On (#)
Transmitter 1 – Filaments
Off
On
Transmitter 1 – Plate Voltage
Off
On
Transmitter 1 – Plate Current
unused
unused
Transmitter 1 – Power Output
Lower
Raise
Transmitter 2 – Filaments
Off
On
Transmitter 2 – Plate Voltage
Off
On
Transmitter 2 – Plate Current
unused
unused
Transmitter 2 – Power Output
Lower
Raise
Antenna Relay Position
Position B
Position A
AC Power
unused
unused
Diesel Generator
manual off
manual on
Room Temperature
unused
unused
Smoke Alarm
unused
unused
To speed up the demo, the filaments have an "instant on" so there is no filament time delay. Still, the filaments must be turned on before the plate voltage can be turned on. This demo will automatically initialize with Transmitter 1 on the air Don't worry about how you leave things when you're finished experimenting. System programming has been inhibited.
To demonstrate the feature that causes the telemetry to be spoken automatically if there is a significant change (>10% of full scale), we've made the generator take 5 seconds to start (hit 10#, then wait 5 seconds). This feature is really handy for situations when you're waiting for something to happen such as a transmitter to power on.
Note that you don't have to wait for the telemetry to be spoken before control can take place. You can execute the sequence "05*08#00#01#" as quickly as you can push the keys. Some transmitters, however, may require delays.
The demo transmitter is set up for voice and data operation--voice is tried first. To demo in data mode, set your communications software to 2400 baud/8 data bits/no parity/1 stop bit. Because of the time it takes for the RFC-1 to try voice communications first, set your modem for a 90 second wait for carrier. This is done by typing "ATS7=090". Also, disable busy-signal detection and error correction by typing "ATX2&Q0".
