    
Tech808
Moderator
Username: Tech808
Post Number: 3141
Registered: 8-2002
| | Posted on Thursday, July 29, 2004 - 4:34 pm: | 
|
SUPERSTAR DM-452
ECHO MICROPHONE
CLICK HERE > COPPER PART #E01-06012
Complete Specifications and Non-Technical Review.
By
Lon ~ Tech808
General Specifications
| Sensitivity | -42 dB at 1,000 Hz (at maximum V.R. and at Minimum Echo Volume V.R.) | | Impedance | 3KW and less at 1000 Hz (at V.R. max | | Frequency Response | 150-3,500 Hz | | Echo Frequency Response | 200 - 3,3000 Hz | | Mic Cartridge | ECM Type | | Type | Omni-directional electret condenser type |
Operating Instructions
#1. Open the back cover of the microphone by unscrewing the fixing stud and insert a 9V battery ensuring that polarity is correct and Check that power is aviliable by pressing the PTT switch. The L.E.D. should Light
#2. Connect the Microphone to your Transciever
#3. Open the back cover and then adjust the VR2 (Power Control) by using a small screwdriver for Echo Time control.
#4. Then adjust the VR1 (Echo Time control) by using a small screwdriver.
#5. Adjust the Echo Level on the Front of the Mic for Echo Level Control.
Notes on Use
#1. Although the Input / Output and Power Supply are provided with high frequency filters, interference can be further reduced by ensuring that:(a) The Microphone cord, Antenna coaxal cable, etc are kept as far apart as possible.
(b) SWR values are kept at less than 1.5 by matching coaxal impedance with antenna impedance.
(c) Do Not use the Echo with a microphone compressor or speech processor.
Connections
4 ~ Pin Mic Plug Model
Pin #1 Common / Yellow
Pin #2 Audio Output / White
Pin #3 Transmit / Red
Pin #4 Receive / Black
5 Pin Mic Plug Model
Pin #1 Audio Output / White
Pin #2 Shield
Pin #3 Receive / Black
Pin #4 Common / Yellow
Pin #5 Transmit / Red
5 Pin Din Mic Plug Model
Pin #1 Audio Output / White
Pin #2 Transmit / Red
Pin #3 OPEN (NOT CONNECTED)
Pin #4 Shield / Yellow
Pin #5 Receive / Black}
Review & Comments
I have been using the SUPERSTAR DM-452 Power Echo Hand Mic for about a OVER 3 YEARS now with excellent results.
I have found that when the conditions are rough or the skip is flying this Mic will punch thru when no other mic will.
I have used this Mic for AM & SSB use and have constantly received the same reports that were LOUD & CLEAR!
The radios I have used the DM-452 on are: Ranger 2995DX, Galaxy Saturn Turbo, Ranger 2970DX, Texas Ranger 696F SSB Base, Magnum Omega Force, Magnum S-3, Magnum S-6, Magnum S-9, Voyage VR9000, Uniden PC-78, President Washington, and many other radios I have around here all with the same OUTSTANDING results. 
I have recommended this Mic to many of my friends who are also Copper Forum Members and CEF Members and all have been 100% satisfied with it's performance and sound for AM and SSB use.
If you are having problems being heard or getting thru the Skip and you are not happy with your Microphones performance I would recommend you give the DM-452 a try.
You will be amazed with it's performance on Both AM and SSB.
A Tip: I have never adjusted the controls inside of the mic as I have found no reason to as it performs excellent as it comes out of the package.
I run mine with the Echo Control on the front of the Mic just BARELY OPEN to the Dot next to the MIN Control.
In closing I can only say the Performance of the DM-452 Mic has been outstanding in overall performance in Base & Mobile use with all radios I have used/tested it on.
Respectfully Submitted,
Lon
Tech808
UPDATED: 08/28/2007 |
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