Wisco International - (Sinclair- Cavity Ferrite Transmitter Combiners)

This series of open-cabinet cavity-ferrite transmitter combiners is available in 2- to 8-channel configurations in both VHF and UHF frequencies. Each channel includes a dual, low-loss, Sinclair- manufactured isolator and a 10-inch, high Q bandpass cavity filter. A unique low-loss junction is provided to combine channels to one antenna. Double shielded cable is used throughout the combiner to ensure high isolation between channel.
These transmitter combiners are housed in a painted steel 21 x 21 x 38 inch open-frame cabinet on castors for mobility. Two cabinets are required for 5 to 8 VHF channel units, and 7 or 8 UHF channel units. They may be stacked to conserve space.

CT*-150F
The CT*-150F series consists of two to eight cavities with companion isolators mounted in open frames for use in the 132-174 MHz frequency range. CT*-150F series combiners provide excellent performance with minimal insertion losses, as illustrated below for frequency separation of 60 kHz or more. By incorporating a hybrid to couple two 4-channel units, 8 channels with 30 kHz spacing can be combined with a typical insertion loss of 8 dB, a significant improvement over a conventional hybrid-ferrite combiner.

CT*-450F
The CT*-450 series combines the mechanical features of open-frame construction with UHF cavities to provide a high performance transmitter combiner for the 406- 512 MHz frequency band. Typical insertion losses are illustrated below for the standard CT*-450F series (4- and 6- channel models). This series is also available using three-quarter wavelength cavities (specify CT*-453F) to permit spacing as close as 75 kHz.

Electrical Specifications		*CT-150F**	*CT-450F**	*CT-453F**
Frequency Range	MHz	132-174	406-512
Frequency Separation	MHz	0.06 - 4.0	0.1 -12.0	0.075 -0.30
Number of Channels		2-8
Pass Band Insertion Loss	dB	See Curves
Isolation Tx to Tx Ant. to Tx	dB
		70
		60
Maximum Input VSWR		1.25:1
Maximum Ouput VSWR		1.5:1
Maximum Input Power	Watts	125/chan
Termination		'N' Female
Temperature Range		-30°C to + 60° C

Mechanical Specifications		*CT-150F**	*CT-450F**	*CT-453F**
HEIGHT	in (mm)	38 (965)
WIDTH	in (mm)	21 (533)
DEPTH	in (mm)	21 (533)
WEIGHT	lb (kg)	103 (48.1)	90 (40.8)	103 (48.1)
Mounting Information		Open-frame cabinet has castors for mobility. Two cabinets may be stacked as shown to conseve space