Ramsey Electronics AVS10 Manuel d'instructions

FMLP1 • 1 FM TRANSMITTER LOWPASS FILTER Ramsey Electronics Model No. FMLP1 In today’s world, the importance of sticking to the “specs.” is

FMLP1 • 10 FMLP1 PARTS LAYOUT DIAGRAM

FMLP1 • 11

FMLP1 • 12 RAMSEY ASSEMBLY STRATEGY As you can see in examining the circuit board and components, there is a bit more to this kit than just soldering

FMLP1 • 13  7. Install C7, 27 pF chip capacitor (marked L1)  8. Install C8, 12 pF chip capacitor (marked C1)  9. Install C9, 10 pF chip c

FMLP1 • 14 Now the inductor coils are prepared. Let’s see how they will mount to the PC board. Look at the parts layout diagram. You will see that co

FMLP1 • 15  20. Cut the 10” piece of RG-188A coax into two 5” pieces. When we are finished preparing the cable in the next few steps,

FMLP1 • 16 applying solder. Use enough to coat the wires and form a strong connection making for easier installation later.  27. Repeat steps 21 th

FMLP1 • 17  33. Solder the ground braid of the coax to the solder lug of the F-connector. Poor connections can lead to poor performance. Check your

FMLP1 • 18 The Finished Product!! CONCLUSION We sincerely hope that you have enjoyed the construction and use of this Ramsey Kit. As al

FMLP1 • 19 The Ramsey Kit Warranty Please read carefully BEFORE calling or writing in about your kit. Most problems can be solved without contacting

FMLP1 • 2 RAMSEY TRANSMITTER KITS • FM100B Professional FM Stereo Transmitter • FM25B Synthesized Stereo FM Transmitter •

FMLP1 • 20 FM LOWPASS FILTER KIT Quick Reference Page Guide Introduction ...4 Circuit Descriptio

FMLP1 • 3 FM TRANSMITTER LOWPASS FILTER Ramsey Publication No. MFMLP1 TABLE OF CONTENTS Introduction ...

FMLP1 • 4 INTRODUCTION While this kit and manual were designed with the beginner in mind, it should also be stated that this kit qualif

FMLP1 • 5 CIRCUIT DESCRIPTION The FMLP1 is a lowpass filter. This means that certain frequency elements can pass from the input to the

FMLP1 • 6 If you think for a moment about the fundamental operation of a capacitor and an inductor when an RF (radio frequency) signal

FMLP1 • 7 The previous paragraphs have help to shed a little light on the basic workings of a lowpass filter. To this point the reason

FMLP1 • 8 components to the printed circuit board before soldering. The procedure is to take a small amount of glue (usually with a pin or toothpick)

FMLP1 • 9 PARTS SUPPLIED WITH FMLP1 TRANSMITTER KIT Capacitors -(50% more SMT capacitors are supplied with each kit)  4 10 pF chip capacitors