ToddH Posted October 20, 2011 Share Posted October 20, 2011 Ok, so I got the EDM Transmitter, came in the other day, fired it up, found a good station well the best I could find but even still getting some static and clarity. Anything I can do to make the quality more clear?I got the EDM-LCD-CS-EP Link to comment Share on other sites More sharing options...
KenL_MCSE Posted October 20, 2011 Share Posted October 20, 2011 What antenna are you using? The test Antenna that comes with the unit is not very strong. A lot of us have posted about our home-made J-Pole's. And maybe even find another channel to broadcast on. Using Radio-Locator.com, I found a frequencey that has 100 miles to the closest commercial station and two semi-local colleges use the same frequency. All you have to do is be STRONG for 200-300 feet. Link to comment Share on other sites More sharing options...
jstorms Posted October 20, 2011 Share Posted October 20, 2011 Try putting the radio on it's own circuit with no other devices.Try keeping further away from computer and other electronics.Try putting the antenna at different elevations.Some transmitters can handle a more power.Bigger antenna.I use the following website to find the best frequency to transmit on: http://radio-locator.com Link to comment Share on other sites More sharing options...
Surfing4Dough Posted October 20, 2011 Share Posted October 20, 2011 Make sure the antenna is placed vertically. How are you attaching the far end of the antenna (assuming it is hanging)? Make sure it isn't attached to metal. Link to comment Share on other sites More sharing options...
JBullard Posted October 20, 2011 Share Posted October 20, 2011 The quality of the EDM signal is directly related to the input signal level. Too loud of an input will cause what sounds like staticFrom the EDM forum:--- In edmdesign@yahoogroups.com, "edmtx100" wrote:>> Often people end up driving too high level audio into the EDM units. This causes terrible distortion on the receive side making users to think that they received a faulty unit.>> Please remember that the EDM units require consumer level -10dBv line-level audio. The output from a MP3 player or PC sound card may be much too high for the EDM.>> Simple rule of thumb: If your audio source is strong enough to power a set of headphones or earphones, the chances are very good that you will end up with distortion on the receiver side.>> The simplest solution is to add a inline volume control to bring the range low enough for the EDM units to handle.>> http://www.dealextreme.com/p/3-5mm-to-rca-stereo-audio-cable-with-volume-controller-2650>> These are very cheap and comes with free shipping.>> EDM TeamIn my opinion, Radio-Locator cannot be relied on. It is a volunteer database, and not always up to date. Also, at least in my area, they report freguencies as clear that in fact have licensed translators operating on them.Been using the EDM since 2007, and in my opinion, the supplied test antenna works extremely well. I get over 300 feet crystal clear at the lowest power setting. Link to comment Share on other sites More sharing options...
Surfing4Dough Posted October 20, 2011 Share Posted October 20, 2011 Good point about the input power. Forgot about that. I had gotten an in-line volume adjuster for my mini-director since the bass had a little static on some songs, and that fixed it right up.http://www.radioshack.com/product/index.jsp?productId=2552561 Link to comment Share on other sites More sharing options...
ToddH Posted October 20, 2011 Author Share Posted October 20, 2011 Thanks for the responses. Tonight was really bad when I tested the unit, it would get really static at times, then go low, then get heavy base, then low with heavy base with static... sigh...I do not have any of what was suggested here so I will go out tomorrow after work and get a volume control connector.Currently the only place I can connect it is in my office which has all my pc equipment and stereo receiver so that could be causing the interference. I also had it going through external speakers and the sound quality was very distorted also so not sure at that point if its the speaker wire/receiver or rca cable or the plain fact that the volume is to much for the device to handle as you all pointed out.I got one of those outdoor rock speakers that has 4 wires coming out of it (Red, Black, White, Green) an no clue what the white an green wire are for but the sound quality is pretty crappy so far....The little round ... think they are some sort of resisters in the EDM thats in between the RCA connectors, they have slots to adjust them, would that provide any help? I have not looked to much into what they do..I got the unite based on popular recommendation's so...didn't do any major research in the unite to see what and how to operate it to get the best performance from it...so I am open to all and any suggestions/tips/ideas / thanks a ton! Link to comment Share on other sites More sharing options...
JBullard Posted October 20, 2011 Share Posted October 20, 2011 Do not connect speaker wires to the input of the EDM. The EDM units require consumer level -10dBv line-level audio.It sounds like you are severely overdriving the unit.Do NOT adjust the trim pots you referred to. They are factory set for the best results in 99.9% of all usage. If you do start turning them, (without knowledge of what they are for) the unit will be out of spec, you could detune the 19khz stereo pilot, you could change the 75 khz deviation, etc. Link to comment Share on other sites More sharing options...
ToddH Posted October 20, 2011 Author Share Posted October 20, 2011 JBullard wrote: Do not connect speaker wires to the input of the EDM. The EDM units require consumer level -10dBv line-level audio.It sounds like you are severely overdriving the unit.Do NOT adjust the trim pots you referred to. They are factory set for the best results in 99.9% of all usage. If you do start turning them, (without knowledge of what they are for) the unit will be out of spec, you could detune the 19khz stereo pilot, you could change the 75 khz deviation, etc.I did not connect any speaker wires to the unit I have a 3.5mm to RCA connector but I am connecting from my computer to the unit which if i am understanding alot of what I read could be to much for the unit to handle?I think there is to much interfearance in the area I have it set up. I might just get longer rca connector to place it in another room..? Link to comment Share on other sites More sharing options...
Max-Paul Posted October 22, 2011 Share Posted October 22, 2011 First and formost. Do not use a FM Receiver in the same room. There is a good chance you are over driving the receivers front end with to much RF power, thus sounds like doggy do do. Separate the receiver from the transmitter by a good 20 feet or more. Then re-evaluate the sound quality. till you separate the two, I would not try anything else. Link to comment Share on other sites More sharing options...
JBullard Posted October 23, 2011 Share Posted October 23, 2011 Effective today, EDM extended the warranty on all of its transmitters from 3 years to four years.Any transmitter purchased within the last 4 years is also covered Link to comment Share on other sites More sharing options...
robert seguin, jr. Posted October 23, 2011 Share Posted October 23, 2011 i got some pvp pipe and a end cap, place the test antenna inside, and it seams to transmit fine from inside the house Link to comment Share on other sites More sharing options...
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