Crescend Technologies P310KL1C9UP AMPLIFIER User Manual USERS MANUAL

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Document ID	897508
Application ID	W1H7Dcjq+EKbXDDxLcvH5w==
Document Description	USERS MANUAL
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	1.04kB (13004 bits)
Date Submitted	2008-02-01 00:00:00
Date Available	2008-03-17 00:00:00
Creation Date	2008-01-28 15:19:28
Producing Software	Acrobat Distiller 7.0.5 (Windows)
Document Lastmod	2008-01-28 15:19:29
Document Title	Power Amplifier (PA) Installation and Operation Rules
Document Creator	Acrobat PDFMaker 7.0.7 for Word
Document Author:	Arkady

Power Amplifier Users Manual
1. General Information.
1.1. The Power Amplifier (PA) is a C-class unit. It is intended for amplification of single
carrier phase (frequency) modulated narrowband signals.
1.2. PA is intended to work with a radio, operated in simplex mode using a switching bypass
relay.
1.3. The single amplifier covers both frequency ranges 896.8875-897.9875 MHz and
935.8875-936.9875 MHz.
1.4. Nominal output power is 30 W and nominal gain is 5 dB with 10 W input power.
1.5. Working input power range is 10 W - 15W.
1.6. Input VSWR is not greater than 2:1.
1.7. DC power supply voltage range is 13.0 – 13.6 V.
1.8. DC current consumption is not greater than 9 A.
1.9. The base plate temperature range is -30ºC to +70ºC.
1. Caution: Be very careful to not stress the 13.6 VDC red wire/filter interface near the two rf
connectors.
2. The Power Amplifier (PA) should be screwed to a flat surface of massive metal construction
that is able to serve as its heatsink. A good thermal contact between the lower base of PA chassis
and heatsink must be provided (a thin layer of thermal grease is highly recommended). Take
care that all dirt and dust has been removed before screwing the PA to the mounting surface.
3. The red DC wire should be connected to + 13.6 VDC line; black (return) DC wire should go to
ground. The amplifier is protected against reverse voltage polarity (it shorts a circuit with the
wrong polarity) but for time not greater than 0.3 sec.
3. The nominal DC power supply voltage should be 13.6 V.
4. RF input power shall be in limits 10 W – 15 W within the over the specified frequencies and
should not exceed 2 W outside this range.
5. Output load VSWR shall not exceed 2:1.
6. It is recommended to keep the temperature of heatsink in the place of PA installation less then
+70°C. The unit has an overheat protection that activates and blocks switching to transmit mode
when the lower base temperature reaches +85°C. The unit returns to normal operation when the
temperature drops to approximately +70°C.
7. The unit is designed for a transmit/receive duty cycle up to 1:4 with the transmitting duration
not greater than 1 min.

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Tag Email Subject               : FCC ID:  CWWP310KL1C9UP
Tag Author Email Display Name   : Mark Obermann
Tag Author Email                : mobermann@crescendtech.com
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Title                           : Power Amplifier (PA) Installation and Operation Rules
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Author                          : Arkady

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