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Broadcast Concepts P1000FM-188PLA Manual

Fm pallet amplifier

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Broadcast Concepts Inc
nd
11700 NW 102
Road Suite 4Medley FL 33178
Tel: 305.887.8400 FAX 305.887.8444
Model P1000FM-188PLA FM Pallet Amplifier
This amplifier module is ideal for final
output stages in FM Broadcast
Applications.
• 87.5 – 108.1MHz (FM BAND)
• 50 Volts
• Input/output 50 ohms
• Pout: 1000W minimum
• Up to 85% efficiency
• 24dB Gain
• NXP BLF188XR Mosfet
• Planar RF Transformers
Electrical Specifications
Characteristics
Operating Frequency range
peak saturated power (@ 50V)
P1dB @ 50V
Power Input
Input VSWR
Power Gain
Amplifier efficiency @ 1000W
Absolute maximum current rating
Insertion Phase variation (unit to unit)
Power gain (unit to unit)
F2 Second Harmonic
F3 Third Harmonic
Bias Current Factory set @50V.
Drain voltage supply
Base plate operating temperature
Load Mismatch (All phase angles,
Id=16A, 10 seconds)
Shipping Weight
Broadcast Concepts Inc
Revised 8/20/2014
Dimension (L x W x H inch) [5.00" x 2.375" x 0.85"]
min
typ
max
87.5
108.1
1000
1050
1100
900
5.0
6.75
1.2
1.7
22
24
25
82
85
87
-
-
26
-
+/-3.5
-
-
+/-1.0
-
-35
-40
-
-25
-30
-
90
100
110
28
48
52
0
n/a
70
65:1
1.5
unit
MHz
W
W
W
VSWR
dB
%
A dc
degrees
dB
dB
dB
MA dc
V
Celsius
VSWR
LBS
1

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Summary of Contents for Broadcast Concepts P1000FM-188PLA

  • Page 1 Broadcast Concepts Inc 11700 NW 102 Road Suite 4Medley FL 33178 Tel: 305.887.8400 FAX 305.887.8444 Model P1000FM-188PLA FM Pallet Amplifier This amplifier module is ideal for final output stages in FM Broadcast Applications. • 87.5 – 108.1MHz (FM BAND) • 50 Volts •...
  • Page 2 Broadcast Concepts Inc 11700 NW 102 Road Suite 4Medley FL 33178 Tel: 305.887.8400 FAX 305.887.8444 Electrical Drawing: Figure 1 The mechanical drawing may be downloaded in DXF format: http://broadcastconcepts.com/177300/PCB10222.DXF Heatsink Mounting/Hardware Tips for Mechanical Mounting: 1 All mounting holes are 0.156 inch thru and they are designed for a #6 Screw. Stainless Steel mounting hardware is recommended, grade 18-8 or better.
  • Page 3 Broadcast Concepts Inc 11700 NW 102 Road Suite 4Medley FL 33178 Tel: 305.887.8400 FAX 305.887.8444 Electrical Notes: There is 1 +50V pad for the main power supply. The Meanwell RSP1500 is the suggested power supply for this amplifier. Do not attempt to connect ground to the pallet or modify the PCB for ground attachment.
  • Page 4 Broadcast Concepts Inc 11700 NW 102 Road Suite 4Medley FL 33178 Tel: 305.887.8400 FAX 305.887.8444 driving blind. You won’t be able to see what’s really going on and the end result could be transistors that burn out. Calculating Die Temperature: How do you know if the amplifier is running to hot? There are symptoms to watch for.
  • Page 5 Broadcast Concepts Inc 11700 NW 102 Road Suite 4Medley FL 33178 Tel: 305.887.8400 FAX 305.887.8444 Broadcast Concepts Inc Revised 8/20/2014...
  • Page 6 Broadcast Concepts Inc 11700 NW 102 Road Suite 4Medley FL 33178 Tel: 305.887.8400 FAX 305.887.8444 Low Pass Filter A low pass filter is required to reduce harmonics. Harmonics from FM transmitters are regulated by most government regulatory authorities. Any of our low pass filters rated for at least 1000 watts can be used with this pallet.
  • Page 7 Broadcast Concepts Inc 11700 NW 102 Road Suite 4Medley FL 33178 Tel: 305.887.8400 FAX 305.887.8444 The 1000W rating for this amplifier is a maximum rating on a 50V supply. In a broadcast system there needs to be a low pass filter and directional coupler. These components introduce losses. We feel that this pallet can easily meet the design requirements for a 900W system.