Magnum MD 05TR Instruction Manual Download Page 13

 

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RECEPTION TECHNIQUES 

 
Antenna Cabling: 
 
The lead-in cable from the antenna is often the weakest link in the FM system. 
Some time spent on selection and matching will yield dramatic results when it 
comes to noise reduction in weak signals. 
 
A good grade of 75 ohm coaxial cable will provide very sufficient signal passage, 
along with effective shielding against interference. Without effective shielding your 
coaxial cable can in fact become an antenna in itself. There are different grades 
of 75 ohm cable, there is RG59/U (Suitable for 50 feet and less) and RG 6. RG 
6 is the better of the two and should be used in runs of 50 feet or more. The RG 
6 has quad shielding and 50 % less losses than RG 59/U.  
 
The key to maximizing the efficiency of the system is insuring that all connections 
are clean and tight, silicon grease on outdoor connections will insure good 
performance over a long period of time. If you splice either cable, make sure that 
exactly the same type of cable is used.  
 
Types of Antennas: 
 

 

Multi-element Yagi - This is a unidirectional antenna capable of pulling in very 
distant stations due to its high gain, the higher the gain the better. These types of 
antennas are very directional and should be used with a rotor to get the 
maximum benefit of the antenna. The directional feature helps eliminate multi-path 
problems by allowing only the signal from the direction that the antenna is facing 
to be picked up by the antenna and not the signals that come from a different 
direction.  

Magnum Dynalab offers two Yagi antennae, the MD 6 FM or MD 10 FM 

 
Vertical ½ Wave  - This design offers ease of installation and operation. This type 
of antenna is omni-directional, which means that it picks up stations coming from 
all directions. No rotor is required to pull in stations from behind or the side. This 
design also gathers more of the FM signal from the air, offering superior fidelity 
over that of a standard bi-directional antenna.  It also gives 2.5 dB gain to the 
signal strength over that of a standard dipole.  
 
If multi-path is a reception problem try laying the antenna down in the horizontal 
plane rather than the vertical plane. This type of antenna can be used indoors or 
outdoors, but regardless of whether it is installed indoors or outdoors the higher 
that you can put it the better it will perform.   

Magnum Dynalab offers the MD ST-2, an excellent vertical ½ wave antenna 

 

Summary of Contents for MD 05TR

Page 1: ...Magnum Dynalab MD 105 105R ANALOG FM TUNER INSTRUCTION MANUAL ...

Page 2: ...ONTROLS AND FUNCTIONALITY 6 DISPLAYS AND METERS 7 CHECKING OUT YOUR MD 105 8 TUNER REMOTE OPTIONAL 9 IMAGE OF REMOTE 10 TROUBLESHOOTING 11 RECEPTION TECHNIQUES 13 Antenna Cabling 13 Types of Antennas 13 FM RECEPTION AIDS AND ACCESSORIES 14 PRODUCT SPECIFICATIONS 15 SAFETY SHEET 16 LIMITED WARRANTY 17 ...

Page 3: ...t of your FM reception with the highest degree of consistency available in the industry To insure that all specifications on our tuners are met at ALL frequencies we manually align our tuners front end at three frequencies 92 MHz 101 5 MHz and 106MHz This process optimizes tuning performance across the entire FM band so that you attain the same levels of quality regardless of where you are tuned T...

Page 4: ...PER UNTIL YOU HAVE BEEN ASKED TO DO SO DO NOT DISCARD THE PACKING MATERIALS AND CARTONS Should there be a necessity to return the unit for any reason it must arrive safely and suitably packaged in order for our receiver to accept it from the carrier Also if the unit has incurred damage as a result of improper packaging it is not likely that a claim for the damage against the carrier will be succes...

Page 5: ... with a 300 ohm to 75 ohm balun transformer 4 Make sure that the center conductor of the cable is properly inserted into the connector If you do not possess an antenna attach the temporary wire enclosed in box to your tuner Place this into the F connector input on the rear of your tuner 5 If you have the D A C option connect the digital inter connect to either the D1 D2 OR D3 input 6 Unwrap the EI...

Page 6: ... Switches your tuner from Stereo to Mono and vice versa Switching to Mono will often clean up noisy stereo transmissions and aid in delivering quiet listening to weaker signals E BANDWIDTH When BW 1 is selected your tuner is in the wide IF Intermediate Frequency bandwidth setting This setting produces the best sound possible where strong adjacent channel interference is not an issue When BW 2 is s...

Page 7: ...s meter readout indicates the amount of signal the tuner is receiving the higher the better I FREQUENCY DISPLAY Displays the station via a numeric value the frequency that your tuner is dialed into Display ranges from 87 5 MHz through 108 5 MHz This readout is controlled by the tuning knob model shown is the MD 105 with optional DAC upgrade ...

Page 8: ...lace the stereo mono to the Mono position your stereo light should now go off Now turn the stereo mono switch back to the Stereo position and your stereo indicator light should turn back on 7 You are ready now to search through FM frequencies in search of your favorite stations If you encounter difficult reception situations please read the Controls and Functionality section of your manual 8 Appro...

Page 9: ...ations To program a preset station first tune to the desired station and then push STORE Then select the preset memory position you want to store this station in by selecting two digits For numbers 1 9 you must select 01 09 and for 10 directly enter the number To recall these presets you must push P and then enter the two digit preset you wish to recall NOTE When setting a preset you must enter th...

Page 10: ... 10 IMAGE OF REMOTE ...

Page 11: ...r correct antenna type Change your antenna Rotate your antenna or mount your antenna higher or near a window if indoors Intermittent sound Mute switch is in the ON position Turn the mute switch to OFF position Tuner remote does not work Batteries dead Buttons being held too long Improper sequence Power switch should be in the off position on standard tuners and the remote must be activated with th...

Page 12: ... 12 No sound from USB Not compatible Signal not receiving Restart your computer or program If using a MAC you must go to system preferences sound and select USB DAC ...

Page 13: ...tations due to its high gain the higher the gain the better These types of antennas are very directional and should be used with a rotor to get the maximum benefit of the antenna The directional feature helps eliminate multi path problems by allowing only the signal from the direction that the antenna is facing to be picked up by the antenna and not the signals that come from a different direction...

Page 14: ...y styles of antennas but all of them are based on one of these types FM RECEPTION AIDS AND ACCESSORIES We have already alluded to the importance of a good quality antenna which has been designed and built with the reception of the FM bandwidth exclusively SHOULD YOU ENCOUNTER A SITUATION IN WHICH YOU REQUIRE MORE GAIN TO THE FM SIGNAL OR SITUATIONS WHERE YOU MAY NEED LESS GAIN AND BETTER SELECTIVI...

Page 15: ...ent rejection 75 0 dB Audio frequency response 1 dB 15 Hz 17 KHz Balanced audio output 600 ohms 2 2 V Line audio output RCA 1 0 V Line power Must be specified 110 220 230 240 VAC Dimensions inches H W D 4 x 19 x 15 Dimensions cm H W D 11 43 x 48 3 x 38 1 Weight lbs kgs 18 7 96 Power consumption Typ Max 50w 100w TUBE SPECIFICATIONS Filament current max 330 mA min 270 mA Anode current 1 max 1 07 mA ...

Page 16: ...ETE OUTLET 9 PROTECT THE POWER CORD FROM BEING WALKED ON OR PINCHED PARTICULARLY AT PLUGS CONVENIENCE RECEPTACLES AND THE POINT WHERE THEY EXIT FROM THE APPARATUS 10 ONLY USE ATTACHMENTS ACCESSORIES SPECIFIED BY THE MANUFACTURER 11 UNPLUG THIS APPARATUS DURING LIGHTNING STORMS OR WHEN UNUSED FOR LONG PERIODS OF TIME 12 REFER ALL SERVICING TO QUALIFIED PERSONNEL SERVICING IS REQUIRED WHEN THE APPAR...

Page 17: ...unit to the appropriate service depot The foregoing is in lieu of any other warranties expressed implied or statutory and the manufacturer neither assumes nor authorizes any person to assume for it any other obligation or liability in the connection with the sale of this product This warranty is not transferable except by written authorization from the manufacturer In order to qualify under the te...

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