Summary of Contents for JT SEPsoniX SEP-FM1
- Page 1 Operating Manual SEPsoniX FM Broadcast Audio Processor model SEP-FM1 JT Communications, LLC Ocala, FL USA Copyright 2021 by JT Communications LLC Ocala, FL USA...
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Page 2: Important Safety Instructions
Increase the separation between the equipment and receiver. — Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. Consult the dealer or an experienced radio electronics technician for help. Copyright 2021 by JT Communications LLC Ocala, FL USA... -
Page 3: Please Read This First
(2) Check the other sections of the Manual (consult the Table of Contents and Index) to see if there might be some suggestions regarding your problem. (3) After reading all applicable sections, you may call JT Communications LLC Customer Service for advice during normal Florida business hours. The number is (1) 352-236-0744. - Page 4 L&R channels, 3) Prevent "ailising" distortions that may occur in the stereo generaton process, though the use of active 15kHz low-pass and 19kHz notch filtering of the audio, Copyright 2021 by JT Communications LLC Ocala, FL USA...
- Page 5 Using 6x oversampling, the need for complicated PWM filtering circuitry is minimized. Copyright 2021 by JT Communications LLC Ocala, FL USA...
- Page 6 The stereo generator is internally factory aligned for optimum performance, and does not require re-calibration on a normal basis. Pilot phase and injection are adjustable with multi-turn front-panel controls. Copyright 2021 by JT Communications LLC Ocala, FL USA...
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Page 7: Installation
Brown or Black AC hot Blue or White AC neutral note: Internal power supply is fuse protected against overloads and shorts. Do NOT replace with a fuse of higer rating than specified. Copyright 2021 by JT Communications LLC Ocala, FL USA... - Page 8 FM receiver with an antenna RF input jack, such as a modulation monitor RF input NOTE: THIS RF OUTPUT IS NOT INTENDED TO BE CONNECTED TO AN ANTENNA FOR USE AS A TRANSMITTING DEVICE! Copyright 2021 by JT Communications LLC Ocala, FL USA...
- Page 9 Increasing the DRIVE (5) controls will also increase the amount of clipping. A variation between the DRIVE and CLIP LEVEL can affect the density of high frequency limiting-to-clipping ratio, and subjective testing should be conducted to obtain desired result. Copyright 2021 by JT Communications LLC Ocala, FL USA...
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Page 10: Operation
SEPsoniX. This will prevent the chance of overmodulation or annoyances to the listeners while making adjustments. By observing the output on the scope, you will be able to adjust output levels more proportionately, as well as see any undesired effects of over-processed audio. Copyright 2021 by JT Communications LLC Ocala, FL USA... - Page 11 The count uses inverted logic, where ON= 0 and OFF=1. Binary math is used to set the desired frequency. For example, if 99.5 Mhz is desired, the DIP switches (LSB on the left) would be 0101 0110 01x0 (0.5 9 90) Copyright 2021 by JT Communications LLC Ocala, FL USA...
- Page 12 1 1 0 1 0 0 - - 93,3 1 0 1 1 0 0 1 1 1 0 - - 104.7 0 0 0 1 1 1 0 1 0 0 - -`` Copyright 2021 by JT Communications LLC Ocala, FL USA...
- Page 13 Keep in mind; over-compensating for program content may or may not provide desired results, and subjective listening tests should be conducted before determinig how much external tailoring is needed for expected performance. Copyright 2021 by JT Communications LLC Ocala, FL USA...
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Page 14: Troubleshooting
11) Disconnect left audio in, and connect Left audio in. Adjust L-R BAL for flat baseline 13) Repeat steps (8) and (11/12) so that baseline is equally flat for left and right channels. Repeat step (10). Copyright 2021 by JT Communications LLC Ocala, FL USA... -
Page 15: Specifications
0–95% RH, non-condensing. Max. Altitude 35,000 feet Overall dimensions: 19" 1 R.U. (1.75") x 12" D. Shipping weight: 7 Lbs ( 3.175Kg) RFI/EMI: Tested according to FCC Part 15 Class A device. Copyright 2021 by JT Communications LLC Ocala, FL USA... - Page 16 Product repairs attempted by anyone other than by a JT COMMUNICATIONS LLC authorized service center.
- Page 17 REVENUE OR LOST PROFITS, LOSS OF GOODWILL, LOSS OF REPUTATION, OR ANY OTHER INCIDENTAL OR CONSEQUENTIAL DAMAGES. NO ORAL OR WRITTEN REPRESENTATIONS MADE BY JT COMMUNICATIONS LLC OR ANY SELLER, RESELLER OR DISTRIBUTOR OF THE PRODUCT, INCLUDING EMPLOYEES AND AGENTS THEREOF, SHALL CREATE ANY ADDITIONAL WARANTY OBLIGATIONS, INCREASE THE SCOPE, OR OTHERWISE MODIFY IN ANY MANNER THE TERMS OF THIS LIMITED WARRANTY.