Homemade E Caller
I made this E caller after reading several different articles on the internet. I ended up taking a little bit of information from all of them and combined them into this. Right now the box is just cardboard with camo duct tape on it and will have to do until I get a chance to get a plastic utility/ammo box. The plan is to wire up a plastic ammo box and place everything in it so it's somewhat waterproof.
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4 downloadsThe call is basically made with a MP3 player hooked up to a NADY wireless microphone transmitter. Inside the box contains the receiver, Radio Shack mini-amplifier, and a Speco 5" SPC5P speaker. The wireless mic is a Nady Systems DKW2LT/N VHF Wireless Lavaliere System that I got from Amazon for $45. I haven't seen this particular model number in any of the articles I read so I took a chance on it. The description on the website said it's a battery powered system but when it got here the receiver is actually an A/C powered base that's ran with a 12v plug in transformer. Luckily I had some AA rechargeable batteries around so I didn't have to purchase any. I got a 10 battery holder from a local electronics shop for less than $3.00 and a plug with pigtail for about the same. The 10 pack of batteries supplies 12v needed to run the system and seems to work perfect. Since the case of the mini-amp is held together with a small screw, I put a small cutout in the plastic case and put the battery outside of it so I can get at the battery to change it when needed. This way I didn't want to have to carry a small screwdriver with me just to change a battery. Everything is on switches with power indicator lights so I don't have to open the box up until the batteries need to be charged. I just leave the power switches on the receiver and amp on all the time and shut the power off on the outside switches. The lights let me know if the power is on or not. The lights are LSD's that you would us in a truck. They run on 2 volt power so they shouldn't have much effect on power consumption. All the electronics are held in place with blue painters tape now…what the heck, it works. I haven't had a chance to check it out in the field yet but the signal seems pretty strong. I tested it out by putting the call in the garage and walked down my hill and operated it from the street by shooting through the house. It picks up the signal from about 50 yards without a problem. Hopefully since it seems to work great at that distance through the wall, I will be able to get 75-100 yards no problem. Let me know what you think. Jim










