Ramsey Electronics STC1 Instruction Manual download pdf (Page 22)

FM25B • 22

quite well. An external antenna can be used for a larger coverage area if de-

sired. Use the RF adjustment control (R25) to fine tune the RF output level to

just reach the area you intend to cover.

The audio connection consists of using shielded audio cables to connect the

line or speaker level output to the audio inputs of the FM25B. Consult the lit-

erature that came with your stereo equipment.

Even if you intend use of the FM25B for your own home and family, it is still

your responsibility, in accordance with Part 15 of the FCC Rules, to ensure

that this operation does not cause interference to your neighbors.

EXPERIMENTAL "BROADCASTING" PROJECTS

To use the FM25B successfully as a "broadcasting" service to interested lis-

teners in a school or immediate neighborhood, most of your effort will be con-

centrated on smoothly "managing" or mixing the audio signals fed into the

transmitter input. Operation of the transmitter itself consists simply of the fol-

lowing:

1. Correct construction and adjustment.

2. Carefully checking for an open frequency between 88-108 MHz in accor-

dance with FCC Rules, Part 15.

3. Setting up a suitable antenna.

4. Connecting the audio source to the input jack.

5. Turning on the transmitter while you intend to be "on the air" and turning it

off when you are finished.

The more home-built your complete setup, the more it is in conformity with the

spirit of FCC Part 15 regulations.

You can greatly add to the versatility and professionalism of your transmitting

station by adding one of our audio mixers and processor. Mixers allow you to

smoothly ‘blend’ from one audio source to another just like the commercial

stations do. Our STC1, Stereo Transmitter Companion provides full audio

processing in one easy package. The STC1 allows you to ‘sweeten’ the audio

for more impact and punch. Plus, it has brick-wall low pass filtering on the ste-

reo inputs to prevent that bothersome ‘swishing’ and squealing sound that is

often found when using lower quality CD players as the audio source! Check

out our free catalog for all the details.

ANTENNA IDEAS

A simple, yet very effective, antenna for the FM25B consists of a "dipole", set

up either horizontally or vertically, and connected to the transmitter output jack

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 35 36

No comments

Ramsey Electronics STC1 Instruction Manual Page 22