Edm transmitter manual

I do not see anything in the specs or I may have missed it. Thanks, John. They also appear to have solved the signal bleedover into adjacent channels that I experienced. I assume that there is no documentation associated with the transmitter telling U. Few of the people who would normally purchase this transmitter would have the necessary test equipment to verify that they are operating legally.

All in all, this appears to be a nudge nudge wink wink transmitter. Unless, of course, they read your review. By the time I got to that test I was about frozen! Certainly the field strength will be greater when both antennas are in the same plane. Although, most people will have it vertical I would think.

I was really just trying to see if it would operate as a legal Part 15 transmitter on this last test. Really, to get busted in this case the agent would have to be checking vertical and horizontal and that may not be too likely. They have been simply a plastic antenna structure with a piece of wire inside. Basically a plastic rod with a hole up the center with a wire inside connected to the center pin of the connector and nothing connected to the shield side at all.

Basically, a wire antenna in a plastic tube. The antenna you can order from EDM sure looks like the same one to me. But of course a better match would almost certainly mean greater output which would make Part 15 operation unlikely. Website info from the instructions pdf states they are set for 75 kHz deviation from the factory. It is worth noting that the documentation on the website is not for the exact same transmitter. It appears the models have changed a bit over the years, and there are several different models.

The documentation shows the ability to adjust this, but the transmitter I purchased does not have this adjustment, but other models might, or might not. Field strength was measured at High Power and with the supplied antenna but I wonder two things:.

And finally what was the Range of this transmitter at its High Power mode compared to the Low Power mode which was closer to part This would be nice to know for any attempt to start a separate Hobby Broadcasting service.

However, to my ear the audio sounded basically identical played from the mixer directly, as compared to listening through the EDM transmitter. I noticed no tinnyness or odd equalization.

I listened for quite some time to both rock and roll and jazz piano. Both sounded exceptionally good. And also, because every transmitter operating at the legal limit is going to have the same range. I prefer this method; as it's easier to finely trim levels with trimmer pots. RF power is adjusted two ways: A switch determines max output; either 10 or milliwatts and a trimmer is used for fine adjustment with a range from milliwatts.

It takes about twenty minutes to complete assembly. Improvements include better low pass audio filtering which is designed to improve Stereo operation and offer even deeper bass and separation. The RF is also cleaner with improved filtering and a lower noise floor. As I recall, had to poke around for it or do a Google search to find it. Try Googling it. FYI, for those that have to change channel mine was bought by a station JUST out of receive area their signal can "piggyback" on yours, so the lisener can hear both, at the same time.

Share More sharing options Followers 2. Recommended Posts. Posted December 12, edited. Greetings all.