KLM Amplifiers.htm

KLM ELECTRONICS, INC.

LINEAR VHF AMPLIFIERS
CLASS "AB" FM/CW/SSB/AM

This series of amplifiers is designed for 143 to 149 Mhz 2 meter band operation. The designs use the latest in micro-stripline techniques and highest quality state of the art transistors. Relay switching is automatic RF sensing. These units do not require any tuning. The boardband design offers the ultimate in flat input VSWR, 1.4:1 or less, and produces rated power output or better across the entire two meter band. This amplifier can be used for AM or SSB operation as well as FM and CW.

The front panel switch on all models switches the amplifier in or out. Withthe switch "in", the 13.5 VDC is supplied to the RF sensing and relay circuit inside the amplifier, however, the unit will not draw any current until the transceiver or transmitter is keyed and RF is applied to the amplifier. At this point an audible click of the relay can be heard and the LED light on the front panel will light. The amplifier will now amplify the RF applied. In the "out" position, the amplifier will bypass the RF through the amplifier.

Forced DC keying can be used by applying + 9 to +15 VDC through a 10k resistor to the base of the MPSA 13 relay driver.

TYPICAL SPECIFICATIONS FOR ALL MODELS

IMPEDANCE:                          50 ohms input and output

SUPPLY VOLTAGE:               13.5 VDC (usable from +11 to +14.5 VDC)

INPUT VSWR:                         1.4:1 144-148 MHz

DUTY CYCLE:                        CAS (Intermittant Commerical Amateur Service)

RF CONNECTORS:                SO239

MODEL NUMBER

RF POWER INPUT (watts)

USUABLE PWR. INP. (watts)

NOM. PWR. OUTPUT (watts)

NOM. CUR. (amps)

SIZE

FUSE 3AG SIZE (amps)

PA 10-160BL

10

5-15

160

22

6.5x10x2

30

PA 2-70BL

2

1-4

70

10

6.5x7.5x2

15

PA 10-80BL

10

5-15

80

10

6.5x7.5x2

15

PA 10-40BL

10

5-15

40

5

6.5x5x2

71/2

PA 10-70BL

10

5-15

70

8

6.5x7.5x2

10

PA 10-140BL

10

5-15

140

18

6.5x10x2

25

PA 30-140BL

30

15-45

140

15

6.5x10x2

20

PA10-70BL/PA10-80BL

C2,3,4

68 pf

Underwood

C5.6

200 pf

Underwood

C8,9,16,17,22

.001 MFD

disc

C7.14

 

1/35 VDC TANT

C10.11

100 pf

Underwood

C2.12

47 pf

Undeiwood

C1,13,20,21

750 pf

DM15

C19

5pf

disc

C23

 

25/15 VDC Eletrolytic

C18

47 MFD

63 VDC

C15

1000pf

Feed Thru Allen Bradley

D3,4

1N914

 

R6

22k

1/4 Watt

R5

560 OHM

1/2 Watt

RFC1.3.5

.15uH

 

Q1

MRF245

Motorola

Q2

MPSA13

Motorola

R7

560 OHM

1/4 Watt

R2

100 OHM

Pot

R3

3 OHM

1/4 Watt

R4

50 OHM

5 Watt

S1

Alco

SPDT

LED

MV5053

 

R1

15 OHM

1/2 Watt

RFC2

5T#16

1/4" Dla. x 1/2" Ig.

RY1

Relay 1355/1365

 

D2,1

1N4003 Diodes

 

F1

Fuse

15A

RFC4

4.7uH

  PA30-140BL

C3,4,5,11,13

68 pf

Underwood

C6,7,12,14,10,17

200 pf

Underwood

C9,16,24,23,29

.001 MFD

disc

C8,15,19

 

1/35 VDC TANT

C22

47 pf

Underwood

C1,21,27,28

750 pf

DM15

C26

5pf

disc

C20

25 MFD

16 VDC

R7

22k

1/4 Watt

RFC2,3,1,5

.15uH

 

RFC6

4.7uH

 

Q1,2

MRF245

Motorola

Q3

MPSA13

Motorola

RY1

Relay #1355/1365

Guardian

D2,3

1N914

 

D1,4

1N4003

 

R8

560 OHM

1/4 Watt

R6

560 OHM

1/2 Watt

R3

100 OHM

Pot

R4

3 OHM

1/4 Watt

R5

50 OHM

5 Watt

R1,2

15 OHM

1/2 Watt

S1

Alco

SPDT

LED

MV5053

 

C30

33 pf

Underwood

RFC4

5T#16

1/4" Dia.

C25

47/63V

Electrolytic

C18,2

 

Feed Thru Allen Bradley

F1

Fuse

15A

PA10-160BL

C36

47 MFD

63 VDC

C13,14,15,21,23

68 pf

Underwood

C16,17,22,20, 24,27

200 pf

Underwood

C18,25,34,35,40

.001 MFD

disc

C19,26,30,10

 

1/35 VDC TANT

C2,6,28

47 pf

Underwood

D1,7,32,38,39

750 pf

DM15

D37 C31

5pf 25 MFD

disc 25 VDC

D8,9,29,11,12

470 pf

Allen Bradley

D5

100 pf

Underwood

R12

560 OHM

1/4 Watt

R10

560 OHM

1/2 Watt

B1

15 OHM

1 Watt

D4,5

1N914

 

D1.2.3

1N4003"

 

02,3

MBF 245

Motorola

Q4

MPSA13

Motorola

Q1

2N6084

Motorola

BFC3,4,5

.15uH

Choke

RFC8

4.7uH

Choke

B11

22k

1/4 Watt

B3,6

100 OHM

Pot

B2,5

3 OHM

1/4 Watt

B4,7

50 OHM

5 Watt

BFC1,2,6

5T#16

1/4" dia.

BY1

 

Belay 1355/1365

F1

 

Fuse 25A

LED

LED and Mount

MV5053

S1

 

Alco SPDT

PA10-40BL

C1,9,17,18

750 pf

DM15

C2,8

68 pf

Underwood J101

C3,4,7

200 pf

Underwood J101

C5

.01

disc

C6.11

1 MFD

35 VDC TANT

C13,19,10

.001 MFD

disc

RFC1,4,2

.15uH

 

RFC5

4.7 nH

 

C16

5pf

disc

Q1

B40-12

CTC/2N6084

Q2

MPSA13

Motorola

B1

15 OHM

1/2 Watl

B6

22k OHM

1/4 Watt

R5

560 OHM

1/2 Watt

R7

1000 OHM

1/4 Watt

R2

100 OHM

Pot

R3

3 OHM

1/4 Watt

R4

50 OHM

5 Watt

LED

MV5053

 

S1

Alco

SPDT

C15

47/63

Electrolytic

D3,4

1N914

 

RFC3

5T#16

1/4" Dia.

RY1

Relay 1355/1365

 

D4,5

1N4148 or 1N914

 

D1,2

1N4003 Diode

 

F1

Fuse

7 1/2A

C12

 

Allen Bradley

PA 2-70BL

C2.14.17

100 pf

Underwood

C6.15.29

47pf

Underwood

C10.11

200 pf

Underwood

C8.9

66 pf

Underwood

C1,5,16

750 pf

DM15

C3,12,21,22,27,28

.001 MFD

disc

C13,4,18

1 MFD

35 VDC TANT

C24

5pf

disc

C23

47/63V

Electrolytic

R11

560 OHM

1/4 Watl

R10

22k OHM

1/4 Watt

R9

560 OHM

1/2 Watl

R8

15 OHM

1/2 Watt

RFC3,5,6

.15uH

Choke

Q3

MPSA13

Darlington

RFC7

4.7uH

Choke

C7

22 MFD

16 VDC

D4,5

1N914

 

Q1

B12-12

 

Q2

MRF245

 

R2,6

100 OHM

Pot

R3,5

50 OHM

5 Watt

R4,7

3 OHM

 

LED

MV5053

 

S1

Alco

SPDT

RFC1,2

5T#16

1/4" Dia.

RY1

Relay 1355/1365

 

RFC4

7T#16

1/4" Dia.

D1,2,3

IN4003 Diodes

 

C19,20

 

Feed Thru Allen Bradley

F1

Fuse

15A

R1

15 OHM

1 Watt

INSTALLATION INSTRUCTIONS:

Connect the positive supply voltage to the red fused lead Connect the gnd lead to the negative or ground side of the power source Number 12 AWG wire or larger is recommended if the supply leads need to be lengthened Connect the amphfer between the transmitter or transceiver and the antenna RG-8A/U or equivalent coax is recommended for the connection between the amplifier and the antenna The amplifier may be mounted in any position

INSTALLATION HINTS:

1    Check all coax cables for proper impedance (50 ohms) and freedom from shorts and/or opens

2   Although the maximum input SWR to the amplifier is 1 4 1, some transceivers may still be unable to produce power into the amplifier If this occurs, try a different length of coax between the transceiver and the amplifier One half wave multiples is probably the best choice (Belden foam 8214 31 5 inches RG-8LJ 26 75 inches )

3   If the amplifier switching is intermittent or if the relay buzzes when keyed, check the following a Inadequate drive power from the transceiver

b High antenna SWR (Try adding another 1A wave to the feed line )

c RF getting back into the transceiver caused by close antenna proximity, poor mic shielding, etc

4   If the amphfer appears to produce low power out, check the following

a A watt meter between the amplifier and the transceiver will check the drive level

b Measure the voltage during amplifier operation as close to the amplifier as possible Voltage for spec output is 13 5 VDC c Even the best watt meters have an accuracy tolerance and they can be fooled if harmonic or parasitic energy is present Check the power at least two positions in the input and output line of the> amplifier, there should be no significant change in power

5   The amplifier when installed should draw no current (less than 10 MA)






Рекомендуемый контент




Copyright © 2010-2017 housea.ru. Контакты: info@housea.ru При использовании материалов веб-сайта Домашнее Радио, гиперссылка на источник обязательна.