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Summary of Contents for PCS Electronics CYBERMAX FM+ 500W
- Page 1 500/700W FM BAND RF AMPLIFIER With full digital controls and SWR/PWR/TEMP meters Manual Brought to you by PCS Electronics, www.pcs-electronics.com...
- Page 2 - Do not open the unit or attempt service yourself. Deadly mains voltage is present inside. There are also high RF voltage points that can cause burns and discomfort if touched. - Finally, never ever operate any transmitter or amplifier without a properly tuned antenna! Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 3: Table Of Contents
Appendix B – Front and back panel layout ......15 Appendix C – Internal layout ..........17 Appendix D – Warranty and legal info ........18 Important notice! ................18 Warranty and servicing! ..............18 Brought to you by PCS Electronics, www.pcs-electronics.com... - Page 4 Legal info ..................18 Limitation of liability............... 18 Also available from www.pcs-electronics.com ......18 Revisions and errata .............. 20 Index ..................21 Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 5: Introducing Cybermax Fm+ Series Of Amplifiers
Chapter Introducing CYBERMAX FM+ series of amplifiers Our series of rack mounted FM broadcasting amplifiers his manual covers our 500W and 750W CYBERMAX FM+ amplifiers. Even though the design of these units evolved radically over the years amplifiers from this series remain one of our best selling items. Today our customers still enjoy the incredible price/performance ratio and more reliability, power and features than ever before. -
Page 6: Technical Specifications
And if you encounter a problem please let us know so that we may offer advice and suggestion. From all of us we wish you happy broadcasting! Your PCS Electronics team Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 7: Before You Start
I hope this basic introduction will not scare you too much, it should be suffucient for the time being although we encourage you to explore this exciting subject further with the help of a book such as the ARRL Antenna Book: http://www.amazon.com/exec/obidos/ASIN/0872598047/mightyspiraterad Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 8: So What Is This Swr (Vswr) Everyone Talks About
Even if you set such a relatively high power transmitter to 5W this setting typically varies quite a bit with time/temperature and can eventually exceed maximum drive power. If you want to use more power at the input, use a smaller transmitter or use an attenuator (see appendix) or ask us to make one for you. Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 9: Wiring Everything Together
RED led is lit and output power is reduced until condition is fixed. - Green LED is always lit and signals power on. - Red LED signals high SWR or TEMP and engaged protection circuit. Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 10: Swr And Power Measurement Facility
The front of the LCD unit starts with the three keys on the left, followed by the backlit LCD display. LCD control module is equipped with our new menu system. It can be modified on request to include your call sign or any other messages you want displayed on the LCD. PCS Electronics welcome screen can be removed on request. -
Page 11: Swr Alarm
There are additional two settings, one of these gives more power at the top of the band around 108MHz and the other does the opposite, providing more gain at the bottom of the band around 88MHz. These four settings should cover any situation you are likely to encounter, whatever your amplifier’s attitude might be. Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 12: Lcd Contrast
Lets you select fan mode. It can either be active permanently or when the temperature reaches a certain preset value. Display on the right below shows a situation with fan activating at temperatures above 70 deg Celsius. Fig. 19 and 20: FAN MODE Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 13: Troubleshooting
BALUN (balanced-unbalanced converter) resulting in coaxial cable becoming part of the antenna and radiating RF energy as well…causing hum. Fig 21: So, do you think you can handle it? We think you sure can! Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 14: Appendix A - Attenuators
15W, which can be easily turned down to 6-10W simply by using 12V mains power supply instead of the usual 15V. Loss in dB R1 ohms R2 ohms Input power (Pin) for 10W output power (Pout) 12,5W 11.6 17.6 23.8 30.4 37.3 44.8 52.8 61.6 96.2 71.2 100W Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 15: Appendix B - Front And Back Panel Layout
(shown on the next page). Monitor output on the right can be used to connect various measuring instruments, such as frequency meter, spectrum analyzer etc. It provides a sample of output signal which has been greatly attenuated and does not represent any danger to measuring equipment. Brought to you by PCS Electronics, www.pcs-electronics.com... - Page 16 Output ventilation aperture for mains power supply Mains switch with fuse and mains plug socket 9,10 USB/RS232 remote control, not used at the moment Back panel of the CyberMaxFM+ series amplifier is shown above. Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 17: Appendix C - Internal Layout
RF section is on the right. You can see there are many fans cooling the RF section and one smaller fan cooling the left section with electronics. You can also recognize LCD display at the front, RF low pass filter and pallet FM amplifier in the right compartment and nicely routed internal wiring. Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 18: Appendix D - Warranty And Legal Info
- A large number of beginners guides to get you started - A large selection of free schematics is as well available at our website. If you can’t get much range with your homebrew antenna, have a look at these: http://www.pcs-electronics.com Brought to you by PCS Electronics, www.pcs-electronics.com... - Page 19 Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 20: Revisions And Errata
Revisions and errata V20 (Dec 2009): Release version of new manual format Please report any errors you see in this manual, you will be helping us and many other users out there. Thank you! Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 21: Index
Index AC mains power, 6 H-500, 8 adjusting, 7 metal case, 7 Antenna, 7 omni-directional antenna, 7 beam, 7 perfect match, 8 Coaxial cable, 8 radiation pattern, 7 directional antenna, 7 RF shielded, 7 feedback, 7 RG-58, 8 final transistor, 7 short circuit, 7 FM transmitter, 8 SWR, 7, 8...
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