Marshall Amplification Field 4000 Owner'S Manual Download Page 1 | Manualshive

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Ow ner’s Manual

OWNER’S GUIDE

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Summary of Contents for Field 4000

Page 1: ...Page 1 Owner s Manual OWNER S GUIDE...

Page 2: ...racking Receiver Contents Introduction 3 Getting Started 4 Receiver Controls 6 11 In the Field A Quick Tutorial 12 Frequently Asked Questions 16 Advanced Telemetry 23 Radio Propagation 28 Tracking Str...

Page 3: ...ll Stealth Much less noise and static interference Pinpoint accuracy to within inches of the transmitter Omni directional sound Smaller narrower size More rugged antenna design Quick Release handle Im...

Page 4: ...up the volume to amplifythat weak signal the noise j ust gets l ouder as well and continues to overpower the signal That s why the differ ence between a medi ocre receiver and the best recei ver is so...

Page 5: ...ng loaded elements will automatically instantly f lip out into the open position Warning to avoid injury be sure to keep a careful distance from your face or others when performing this procedure 3 Li...

Page 6: ...picture above To collapse the antenna follow the same steps in reverse Slide the Slide Bar with the two Forward Elements back toward the receiver Rotate the Center Elements into their collapsed posit...

Page 7: ...en 216 022 and 216 028 possibly even further away The FM4000 Model has a Band Switch which gives you a choice of which megahertz MHz band you want to tune to For example each of the 216 217 218 and 21...

Page 8: ...not used in ordinary tracking In extreme situations it allows y ou to accurately pinpoint a transmitter which is very near but hiddenf rom sight The Far range setting is for use in all situations when...

Page 9: ...5V batteries work better in cold weather below about 7 C 20 F Actual battery life depends on many factors including temperature and how long it is used continuously All batteries will run longer if us...

Page 10: ...ter The Field Marshall is very water resistant and the speakers are completely waterproof It should have no problem with an ordinary rainstorm as long as you shield the Front Panel from the direct spr...

Page 11: ...Page 11 Owner s Manual Headphones give a big advantage when tracking weak signals in noisy environments and are strongly recommended for serious tracking and listening to very weak signals...

Page 12: ...o a comfortable level Hold the receiver in front of you at eye level with the elements horizontal Now rotate your body 360 keeping the receiver in the same position Can you hear the volume of the beep...

Page 13: ...spot and see if y ou canf ind it You can make a game out of this Thousands of ham radio enthusiasts actually conduct competitive transmitter hunts in major cities in the US and around the world Or pu...

Page 14: ...ll trans mitters but other brands can experience frequency drift with changes in temperature If you tune in while the transmitter is sitting next to you on the car seat the signal will be so powerful...

Page 15: ...Page 15 Owner s Manual...

Page 16: ...fted but not much So if you really think the signal could have drifted take note of the setting and then just turn the Tuning Knob very slightly and search for the signal by scanning the horizon 360 I...

Page 17: ...ane to fly over the area but eventually you can find it if you re patient and there is a signal I m not exactly certain what direction the transmitter is Am I doing something wrong Getting the sharpes...

Page 18: ...ll not point out the right direction very precisely The strong signal also saturates the receiver making all signals sound equally loud This is common to all receivers How can I tell how far away my t...

Page 19: ...itter the ter rain and many other factors But over time you ll get a feel for the distance these Range settings represent with your transmitter and terrain Distance Technique 2 Just take a reading on...

Page 20: ...s a single short pulse from your transmitter is made up of several tens of millions electro magnetic vibrations The kilohertz unit is usually used in telemetry to measure the difference between freque...

Page 21: ...Page 21 Owner s Manual...

Page 22: ...Page 22 Field Marshall Tracking Receiver...

Page 23: ...broadside radiation and the pattern looks like a donut as in the diagram on page 27 Little energy comes from the end of the antenna so when the an tenna is pointed right at you you get the worst poss...

Page 24: ...should be oriented the same way as your transmitter antenna This is im portant with weak signals Your antenna will work poorly if it s oriented the wrong way as much as ten times worse The best orien...

Page 25: ...ave a lot of time to travel You need a bear ing The yagi also has gain picking up weak signals better as if it were amplifying them It can pick up a far away transmitter when other antennas would get...

Page 26: ...directional an tennas These antennas pick up equally well in all directions You should use one in your vehicle when moving to the next point where you ll take a bearing Hearing the signal from your a...

Page 27: ...ening circles around where you think the animal should be until you hear something The most common omni directional antenna is probably a magnetically mounted whip shown below It should be in the cent...

Page 28: ...s from your nearby vehicle can easily give you a false reading and the steel in a building can scatter the signal in every direction Water is another good conductor Radio waves will bounce off the sur...

Page 29: ...complement each other in certain spots nullifying each other in others When the transmitter is close The checkerboard effect is most pronounced when your animal is off the ground in a tree especially...

Page 30: ...where you can pick up the signal the so called line of sight radius The actual radius depends on the elevation of both the transmitter and the receiver This diagram can give you an idea of the line o...

Page 31: ...not getting a good signal the first thing to do is get higher Driving to the top of a hill or climbing a water tower can dramatically increase your transmitter s range Hint When tracking a weak signal...

Page 32: ...e undetectable if it weren t for diffraction around the edges A powerful transmitter can use diffraction to punch a signal beyond the line of site limit Diffraction around trees combined with reflecti...

Page 33: ...e channel of each transmitter and adjust the tuning for the optimal loudest sound The Initial Bearing When you first lose the animal use your receiver immediately to acquire the signal You may not be...

Page 34: ...As you move the yagi across the horizon is the peak response sharp or broad A broad response may indicate a reflection or diffraction over an obstacle As you drive away does the signal drop off rapid...

Page 35: ...on the line connecting the two landmarks Proceed toward the point of intersection but again offset to a third point You ll end up rapidly closing in on the transmitter in a spiral If you lose the sig...

Page 36: ...e you re within walking distance You ll waste a lot of time if you leave your vehicle prematurely Triangulation will give you a good clue how close you are or you can use the Meter technique described...

Page 37: ...Page 37 Owner s Manual...

Page 38: ...Page 38 Field Marshall Tracking Receiver...

Page 39: ...otherwise please do the following In the USA and Canada Call 800 729 7123 and talk to Marshall Radio Telemetry s CustomerService depart ment We will first try to determine the nature of the problem ov...

Page 40: ...Page 40 Field Marshall Tracking Receiver 800 729 7123 801 936 9000 www marshallradio com...

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