RF SENSED PREAMPLIFIERS 50 MHz. 440 MHz.

 

Based on the legacy of our famous SP-6, SP-2000, SP-222, SP-7000,  SP-903, SP-23, and SP-13 preamplifiers, we are proud to introduce a whole new generation of Ultra Low Noise Mast-Mounted RF Sense (VOX) preamplifiers.

These new preamplifiers feature: Ultra low noise figures, RF-sensed operation up to 100 W, high power capability up to 750 W with our DCW2004B sequencer, helical or bandpass filters, adjustable gain 10 - 20 dB., as well voltage feed via the coax cable or via a separate feed.

N-Female connectors are featured for RF-In/RF/out as well as an SO239 connector for separate voltage feed

 

        PREAMPLIFIER SPECIFICATIONS

 

 

SP-600

SP-200

SP-70

DBA270

DBA270

Frequency Range [MHz]:

50-52

144-146

430-440

at 145

at 435

Noise figure (at 20C) (NF) [dB]:

0,4

0,5

0,7

 0,5

0,7

Gain (S21) [dB]:

10-20*

10-20*

12-22*

 20

 24

Switching power w. RF-Vox [W]:

100

100

100

 100

 100

Permissible power **(PEP) [W]:

750

750

500

 200

 200

Permissible power ** (FM) [W]:

500

500

300

 100

 100

Insertion loss. [dB]:

0,03

0,04

0,15

 0,1

 0,2

Return loss act. TX [dB]:

36

36

35

 30

 30

Return loss (S11) [dB]:

3,5

3,5

4,2

 2,5

 3,5

Output return loss (S22) [dB]:

30

30

26

 20

 12

O-IP3 [dBm]:

19

16

20

 17

 22

I-IP3 [dBm]:

-2

-4

-2

 -3

 -2

Suppl. volt./current [V/mA]:

12-14/260

12-14/250

12-14/320

 12-14/340

 12-14/340

Mast diameter [mm]:

Inches

58

2.25"

58

2.25"

58

2.25"

 58

 

2.25"

58

 

2.25"

 

CUSTOM VERSIONS OF OUR PREAMPS ARE AVAILABLE  **Please Call **

 

** With DCW 2004 B

* Gain is adjustable 10-20 dB

 

 

 

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