THE ACCLAIMED 4 WATT PLL PRO 3 FM EXCITER
If you demand the best, it's here! No frequency drift, rock solid power and the ultimate sound quality in one superb package. This is the NRG PLL PRO 3, now recognised as the leader in high power pll transmitter kits. Incorporating unique NRG circuit design, it delivers a stunning 4 watts of RF power to a correctly matched antenna. The output power is selectable from 1 watt to 4 watts via an on-board jumper switch. The PLL PRO 3 design uses wide-band power amplifier technology, this eliminates the need to tune up the transmitter to "peak the power".The design is so stable that the RF power output will remain constant even at high ambient temperatures, there is no power slump with this transmitter! Just compare the massive 4 watts (4000mW)output to the inadequate 800mW flea power units from some of our competitors!
Also featured in the PLL PRO 3 design is an "Out Of Lock Power Down" circuit. This will automatically reduce the output power to zero so that frequency adjacent radio stations will NOT be affected. A clean start up every time is assured without any disturbance to other channels. Some inferior transmitter pll kits do not have out of lock power down. These are ILLEGAL to use. Don't take a chance with low grade rubbish. Demand the best, demand NRG PLL-PRO III !
Now featuring Ultra Linear FM Modulation to produce absolutely crystal clear sound. The modulation now uses the KV1330 varicap which is the most linear source we guarantee to give distortion free sound.This means that your listeners receive crystal clear sound and an excellent stereo performance when used with the NRG Pro III or Pro IV Stereo Coder. Optimum sound quality has always been high on our list, and the flagship pll transmitter kit from NRG delivers every time!
No expensive equipment is required to setup this product and every single component needed to get this product working is included in the package, including a very useful 50-ohm Dummy Load. As if this wasn't enough... Just take a look at the amazingly low price of this product. NRG produce the 4 watt PLL PRO 3, and no-one else!
POWER AND PRECISION -- THE NRG PLL-PRO III
PLL PRO III specifications:
Type: VHF/FM PLL wideband modulation Frequency Coverage 87.0 to 110 MHz
Frequency Generation: Self Excited Balanced Frequency Doubler
Frequency Correction: Phase Locked Loop Synth.
Amplifier stages: 2 stage wideband dual power - No Tune
Frequency Stability: Plus/minus 1KHz (crystal controlled)
RF power out: 4 watts/1 watt (switchable)
Harmonic Rejection: -50dB down (6 pole lpf)
Spurious: -70dB down on carrier
S/N ratio: -80dB down on line level
Pre-emphasis: None, 50 uS, 75uS switchable
Unlock power down: lock detect/overide jumper fitted
Audio performance: Less than 0.2% distortion, 20Hz-75KHz
PA stability: Stable through 20:1 swr, all phases
PA ruggedness: 20:1 swr withstand at full power
PA Efficiency: 80% At 4 Watts Output
Polarity protection: Full crowbar fused power input
Audio input: 0.775 V rms for +/- 75 KHz
Power requirement: 13.8 Volt DC 1A nom Click here for a low cost Power Supply
LED status indication:
RF power
DC Power
O/L power down
Freq. locked
User controls:
Deviation set preset
VCO centre lock trimmer
Frequency adjust DIL switch
Pre-emphasis EQ selector
Power output selector
O/L power down overide selector
Dimensions:
138 x 165 mm pcb
RF socket SO239 standard female
Audio socket Phono input jack
Power input 1.5m red/black twin cable
