Table of Contents
Troubleshooting
Related Manuals for PCS Electronics AMMAX8000+
Summary of Contents for PCS Electronics AMMAX8000+
- Page 1 AMMAX8000+ DSP PWM AM transmitter 100/150Wpp AM radio broadcasting transmitter board with DSP processor, also covers 500W/1000W/2000Wpp units in 1H/2H/3H rack and MW/SW models 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
<PLL STEP> ................. 14 <FIRMWARE VER> ..............14 Troubleshooting ................14 Troubleshooting our AM transmitters ........15 Appendix A – Warranty and legal info ........17 Important notice! ................17 Warranty and servicing! ..............17 Brought to you by PCS Electronics, www.pcs-electronics.com... - Page 4 Legal info ..................17 Limitation of liability ............... 17 Also available from www.pcs-electronics.com ......18 Revisions and errata ..............19 Index ..................20 Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 5: Introducing Ammax Series Of Transmitters
Chapter Introducing AMMAX series of transmitters Our series of AM broadcasting radio transmitters his manual covers our AM transmitters either as a board or built into 1H rack enclosure or 2H/3H enclosure together with an amplifier. Please note these units are available for medium wave (MW) and short wave (SW) bands. -
Page 6: Technical Specifications
And if you encounter a problem, please let us know so that we may improve our products, 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: Front And Back Panel Layout - 100W Model
AMMAX does not have DIGIAMP currently. Optional Ethernet remote control port. AMMAX does not have remote control currently. If you ask for this feature, we will add it. Description of back panel of CyberMaxAM+ in 1H rack enclosure Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 8: Front And Back Panel Layout - 500W/1000W/2000W
LED Bar-Graph VU meter for audio LED Bar-Graph VU meter for power and reflected power RF sample signal for monitoring of transmitted signal Description of front panel of CyberMaxAM+ in 2H rack enclosure Brought to you by PCS Electronics, www.pcs-electronics.com... - Page 9 Balanced audio inputs left and right channel XLR (Canon). USB audio input (for PC) MPX audio level adjustment (not used in AMMAX transmitters) Description of back panel of CyberMaxAM+ in 2H rack enclosure Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 10: What's Inside The Box
Chapter What’s inside the box? AM Exciter board CyberMaxAM+ units are all based on our AMMAX8000+ series AM exciters. AMMAXPRO8000 series exciter board Brought to you by PCS Electronics, www.pcs-electronics.com... - Page 11 Power ON/OFF connector, install a jumper if you don’t need a switch. There is also a pin for LED diode going to + via resistor. Power supply connector, center is positive. DO NOT use more than 50V. Description of various elements of the AMMAX+ AM exciter board Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 12: Before You Start
I hope this basic introduction will not scare you too much, it should be sufficient 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 13: So, What Is This Swr (Vswr) Everyone Talks About
You need audio source to drive your transmitter. This will typically be either a computer (just plug the cable into your sound card outputs, a mixer and a variety of audio sources, such as a microphone, CD player, DAT player, tape deck, gramophone, MP3 player etc. Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 14: Wiring Everything Together
- Observe output power. Should be about 10-20% of maximum rated power with no audio. - You can now connect audio sources of choice and verify audio performance. Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 15: Using The Cybermaxam+ Series Transmitter
Simply press the UP/DOWN button to change frequency. Depending on PLL STEP setting your frequency will go down or up in selected steps. If you keep pressing a key for a while the PLL STEP switches to fast tuning mode and jumps in larger steps. Setting frequency, default view Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 16: View Select
Digital signal processor starts compressing the signal beyond that point. The higher the compression ∞ ratio the higher the compression. For example, compression ratio of 1: would in effect be a limiter. Explanation of the compressor settings Setting the compression level Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 17: Lcd Contrast
(meaning more signal energy). <LCD CONTRAST> Select for the best visibility. Contrast is slightly affected by ambient temperature and you can adapt it to your needs here. Changing contrast Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 18: Pll Step
Next check the troubleshooting table on the next page. If you have problems, you cannot solve yourself, please see our website for contact information and support resources in our forum. Brought to you by PCS Electronics, www.pcs-electronics.com... -
Page 19: Troubleshooting Our Am Transmitters
Chapter Troubleshooting our AM transmitters So, do you think you can handle it? We think you sure can! Brought to you by PCS Electronics, www.pcs-electronics.com... - Page 20 BALUN (balanced-unbalanced converter) resulting in coaxial cable becoming part of the antenna and radiating RF energy as well…causing hum. Troubleshooting AMMAX series AM exciter Brought to you by PCS Electronics, www.pcs-electronics.com...
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Page 21: Appendix A - Warranty And Legal Info
Appendix Appendix A – Warranty and legal info Important notice! Please remember to turn off the transmitter/amplifier when not in use! This goes especially for high powered transmitters. Remember that anything you broadcast through the transmitter can be heard by anyone tuning in to that frequency. -
Page 22: Also Available From Www.pcs-Electronics.com
- Many 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 23: Revisions And Errata
Revisions and errata V2 (Dec 2022): Second update 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 24: Index
Coaxial cable, 9 RF shielded, 8 feedback, 8 RG-58, 9 final transistor, 8 short circuit, 8 grounding, 8 SWR, 8, 9 H-500, 9 Technical specifications, 2 mains cable, 9 tune, 8 mains power supply, 9 Brought to you by PCS Electronics, www.pcs-electronics.com...
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