Panaxis FMX transmitter, this transmitter had been sold exclusively
through Progressive Concepts and on E-bay by the same person.
AVOID this transmitter at all cost. As one who has built no less than 15 of these units back when they were available in kit form directly from Panaxis for about $120 each or less, at the current price of $185, I would avoid this unit for several reasons 1. You have to deal with Progressive Concepts (Eric has no concept of customer service) 2. Poor sound quality when compared to EDM or Broadcast Warehouse, the unit has no bottom end, bass is cut off at 100hz by the transformer. 3. Power output is overstated, it clams a power output of 400milliwatts, the best I have ever pulled out of one of these units is 350milliwatts and that was only after several modifications and 15 volt dc was added directly to the final. 4. harmonics at -50db will cause problems for you with the F.C.C. without a power robbing filter that will set you back another $65
For $15 more the B-W is a much better transmitter, even if you have to pad down the power output. the difference in sound is like AM vs. CD, it really stands out!
through Progressive Concepts and on E-bay by the same person.
AVOID this transmitter at all cost. As one who has built no less than 15 of these units back when they were available in kit form directly from Panaxis for about $120 each or less, at the current price of $185, I would avoid this unit for several reasons 1. You have to deal with Progressive Concepts (Eric has no concept of customer service) 2. Poor sound quality when compared to EDM or Broadcast Warehouse, the unit has no bottom end, bass is cut off at 100hz by the transformer. 3. Power output is overstated, it clams a power output of 400milliwatts, the best I have ever pulled out of one of these units is 350milliwatts and that was only after several modifications and 15 volt dc was added directly to the final. 4. harmonics at -50db will cause problems for you with the F.C.C. without a power robbing filter that will set you back another $65
For $15 more the B-W is a much better transmitter, even if you have to pad down the power output. the difference in sound is like AM vs. CD, it really stands out!
PANAXIS FMX TRANSMITTER
FM TRANSMITTER REVIEWS
I have tested the FMX and the EDM LED side by side; The FMX is like a Yugo while the EDM LED is like a Toyota...
The EDM LED transmitter is an outstanding value when compared to Ramsey and others. Low harmonics and spurious emissions will reduce the chance of a visit from the FCC...
For the money the EDM LED is the best transmitter in regards to sound quality, signal quality & innovative design when compared to Panaxis & Ramsey...
For those who want to set up a part 15 FM station on a budget, I suggest the EDM LED transmitter and a Yamaha MG-10/2. The MG 10/2 includes 2 XLR mic inputs and 4 stereo inputs; all inputs include 3 band EQ, aux send which can be had for less than $70 on e-bay. Total cost around $187, compare that to a Ramsey 100B kit priced around $269...
Add a Behringer DSP-1425 two band processor for under $100 and listen as your EDM LED transmitter takes on the best sounding FM station you have on the dial.
The EDM LED transmitter is an outstanding value when compared to Ramsey and others. Low harmonics and spurious emissions will reduce the chance of a visit from the FCC...
For the money the EDM LED is the best transmitter in regards to sound quality, signal quality & innovative design when compared to Panaxis & Ramsey...
For those who want to set up a part 15 FM station on a budget, I suggest the EDM LED transmitter and a Yamaha MG-10/2. The MG 10/2 includes 2 XLR mic inputs and 4 stereo inputs; all inputs include 3 band EQ, aux send which can be had for less than $70 on e-bay. Total cost around $187, compare that to a Ramsey 100B kit priced around $269...
Add a Behringer DSP-1425 two band processor for under $100 and listen as your EDM LED transmitter takes on the best sounding FM station you have on the dial.
INSIDE LOOK AT THE EDM LCD TRANSMITTER
The new EDM LCD FM transmitter is a bit larger and heavier than the older LED version, unlike other transmitters using LCD's the EDM is strictly for frequency display. Other transmitter tend to use two or three buttons and display to adjust everything from audio & power levels to mono/stereo etc, the EDM LCD has smartly stuck with traditional trimmer pots to set power level, L/R audio & MPX levels. I prefer this method, as it is easier to finely trim levels with a potentiometer than up/down buttons which effect the on air product every time a mode is set up and adjusted. Power is adjusted two ways; first a switch determines max output; either 10 or 100 milliwatts, and a trimmer follows for fine adjustment with and ultimate range of 1-to100 milliwatts. Audio & RF connection remains RCA & the 12-volt DC input is a 2.1mm connector so you can unplug the old EDM and drop the new one in place. NOTE: Holes in the case now allow easy access to the audio trimmer pots, and channel up/down buttons, the MPX trimmer is accessed via a hole on the inner case.
The EDM is now shipped in easy kit form; you have to plug the micro - processor chip in to the IC socket and solder the DC connector to the PC board and then mount the LCD display to the main PCB, about twenty minutes work if you take your time. The end result is a rock solid FM transmitter that out performs all other transmitters in its class; yes even the older EDM LED version. 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.
Coming in at just under $170 the EDM LCD FM transmitter is delivered with a compact switching power supply, a wire test antenna, an RCA to BNC adapter is available at low cost. The EDM LCD FM transmitter remains an outstanding value compared to the Ramsey FM30 or FM100b, It's like getting a Mercedes Benz for the price of a KIA in terms of performance and quality. For the difference in price between the Ramsey FM30 & the EDM LCD FM transmitter, you could add the Behringer DSP1425p 2-band loudness processor to the EDM for a sound that will rival any FM station on the dial, and still have money left over.
On a score of 1-10 the EDM LCD FM transmitter is an easy 12, yes I am sold on EDM for a number of reasons, First quality: the EDM transmitters are solid performers in everyway, I have even drowned one while it was on the air! Dried it out, fired it back up and it went right back on the air. Second delivery: From the time the transmitter is ordered to the time it lands on the doorstep is within a week no matter where you live on the planet. Third: customer service is second to none, e-mails are responded to right away, even after I killed my first one, I had it back on the air in a week where it remains three plus years later. I have a second EDM LED as a back up; it has been on the air twice for less than an hour while I dried out the other one.
The EDM is now shipped in easy kit form; you have to plug the micro - processor chip in to the IC socket and solder the DC connector to the PC board and then mount the LCD display to the main PCB, about twenty minutes work if you take your time. The end result is a rock solid FM transmitter that out performs all other transmitters in its class; yes even the older EDM LED version. 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.
Coming in at just under $170 the EDM LCD FM transmitter is delivered with a compact switching power supply, a wire test antenna, an RCA to BNC adapter is available at low cost. The EDM LCD FM transmitter remains an outstanding value compared to the Ramsey FM30 or FM100b, It's like getting a Mercedes Benz for the price of a KIA in terms of performance and quality. For the difference in price between the Ramsey FM30 & the EDM LCD FM transmitter, you could add the Behringer DSP1425p 2-band loudness processor to the EDM for a sound that will rival any FM station on the dial, and still have money left over.
On a score of 1-10 the EDM LCD FM transmitter is an easy 12, yes I am sold on EDM for a number of reasons, First quality: the EDM transmitters are solid performers in everyway, I have even drowned one while it was on the air! Dried it out, fired it back up and it went right back on the air. Second delivery: From the time the transmitter is ordered to the time it lands on the doorstep is within a week no matter where you live on the planet. Third: customer service is second to none, e-mails are responded to right away, even after I killed my first one, I had it back on the air in a week where it remains three plus years later. I have a second EDM LED as a back up; it has been on the air twice for less than an hour while I dried out the other one.
INSIDE THE EDM LCD
FM TRANSMITTER
FM TRANSMITTER
Spec Type |
LED Series |
LCD Series |
Notes |
| Frequency Range | (87.7 - 107.9) MHz | (87.7 - 107.9) MHz | 0.1 MHz increments (click) |
| Frequency Stability | < 0.0005% | < 0.0005% | Of set frequency |
| Frequency Accuracy | < 0.001% | < 0.001% | Of set frequency |
| RF output (standard) | 10mW (+10dBm) into 50O | 1-100mW into 50O | |
| RF output (high) | 100mW(+20dBm) into 50O | Switchable 10/100 mW | |
| RF output LCD | 1-100mW into 50O | Adjustable 1-100mW | |
| RF muting during tuning period | -20dBc | < -30dBc | RF reduced dB below carrier |
| VSWR | Withstand 20:1 | Withstand 20:1 | No damage |
| Phase noise (dBc/Hz) | Commercial VCO's specs | ||
| 1 kHz offset | -84dBc/Hz | -97dBc/Hz | in the range 87-108 |
| 10 kHz offset | -90dBc/Hz | -117dBc/Hz | for comparison |
| 20 kHz offset | -94dBc/Hz | -125dBc/Hz | (click here for more) |
| 100 kHz offset | -104dBc/Hz | -137dBc/Hz | |
| Residual FM | 14Hz (300-3kHz) BW | <1Hz (50-15kHz)BW | LCD VCO vs HP RF gen |
| Incidental AM | <0.2% | <0.1% | |
| RF Harmonics out | 10mW (-30dBc) 100mW(-50dBc) | -60dBc or better | |
| Spurious Output | -50dBc or better | -60dBc or better | |
| SNR (Signal-Noise-Ratio) | 60dB or better | 75dB or better | |
| Audio Distortion (%THD) | 0.3% @ 1kHz | 0.1% @ 1kHz | Or better @ 75KHz deviation |
| Stereo Separation | 28-40dB @ 1kHz | 30-45dB @ 1kHz | Limited by stereo encoder chip BH1415, BH1414 |
| Audio Response | 20 Hz - 15 kHz | 20 Hz - 15 kHz | |
| Max Input Level (RCA line) |
500 mV rms | 500 mV rms | (Click here for more info) make |
| Max Input Sensitivity | 100mV p-p | 100mV p-p | |
| Power Requirement | Clean Regulated 12V | Clean Regulated 12V | PSU must be regulated |
| 150mA for 10mW operation | 250mA | ||
| 250mA for 100mW operation | |||
| Antenna | Needs 50O - 75O impedance | 50O - 75O impedance | 1m wire antenna supplied |
| Transmit Range | Range will depend on various factors like, location, interference, type of receiver etc. | 10mW unit (300-400)ft with good receiver |
|
Due to continuous product development, EDM reserves the right to change any specification without notice |
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THE SPECS
7-14-08
