Blonder Tongue Single Channel VHF/FM Preamplifier 54-216 MHz (Channel 8)

These preamplifiers can accept a wide range of input signal levels and offer excellent gain, making these units ideal for difficult signal areas. The SCMA-Ub has an internal trap that can be factory tuned to a customer specified UHF frequency to prevent overload or intermodulation interference from strong, local channels.

The CMA-b/SCMA-Ub Single Channel Preamplifier Series are housed in a die-cast case. Input, output, and test ports are 75 Ohm, type "F" female connectors. The preamplifiers mount on a 1.5 inch O.D. (max) antenna mast with the supplied mounting hardware. Blonder Tongue PS Series -21 VDC power supplies (available separately) are used to power the preamplifiers through the downleads.

 

Electrical	CMA-b	SCMA-Ub
Noise Figure (dB):	(2-6), 2.0 (FM), 2.5 max (7-13)	2.5 (14-69)
Trap Depth (dB):	N/A	10
Gain (dB):	29 (2-6), 24 (FM), 26 (7-13)	25 (14-34), 24 (35-69)
Bandwidth (MHz):	6, 20 (FM)	6
Bandpass Flatness (dB):	+/-0.25 (2-13), 1.0 (FM)	+/-0.75
Selectivity (dB):	12	12
Minimum Recommended Input Level (dBmV):	10	10.5
Input Capability (dBmV):	+35	+35
Impedance - All Ports:	75 Ohms	75 Ohms
General
Power Requirements:	-21 VDC @ 40 mA	-21 VDC @ 29 mA
Recommended BT Power Supply:	PS-1526	PS-1526
Temperature Range (C):	-40 to +60	-40 to +60
Mechanical
Max. Mast Diameter O.D. (in.)	1.5	1.5
Dimensions
W x H x D in.	5.00 x 3.88 x 2.31	5.00 x 3.88 x 3.00
W x H x D mm.	127 x 99 x 59	127 x 99 x 76
Weight
lbs.	1.31	1.31
kg:	0.60	0.60
Connectors
Input:	"F" Female
Output:	"F" Female
Test:	"F" Female