Transmitter Combiners

Hybrid Transmitter Combiners

Horwin CH-V/Ux-x series is a hybrid combiners with ferrite isolators used for combining several VHF/UHF transmitters into one antenna with close frequency spacing. Combiners are configured in sets of 2 or 4 channels.

There are two model versions – single or dual ferrite isolators depending on the required Tx – Tx isolation and (or): low power– up to 50 watts and high – up to 100.Nominal impedance is 50 Ohms. N-type “female” connectors are used for input/output connections. Combiners are mounted on standard EIA 19” panel 3 U high and 355 mm depth.

Combiners are tuned at customer specified frequencies, so transmit frequencies should be specified when ordering.

CH combiner (hybrid)
x frequency range (V=VHF, U=UHF)
x number of Tx channels
x isolator type (1=single, 2=dual)
x input power (L=50W, H=100W)

Model

Frequency range, MHz

Type

Tx Chanels

Insertion losses
Tx –Ant, dB

Isolation
Tx – Tx, dB

CH-V2-1L(H)

144 – 174

single isolator

2 < 4

> 60

CH-V2-2L(H)

144 – 174

dual isolator

2 < 4,5

> 80

CH-V4-1L(H)

144 – 174

single isolator

4

< 7,5

> 60

CH-V4-2L(H)

144 – 174

dual isolator

4

< 8

> 80

CH-U2-1L(H)

400 – 470

single isolator

2

< 4

> 60

CH-U2-2L(H)

400 – 470

dual isolator

2

< 4,5

> 80

CH-U4-1L(H)

400 – 470

single isolator

4

< 7,5

> 60

CH-U4-2L(H)

400 – 470

dual isolator

4

< 8

> 80

8“ Cavity Transmitter Combiners

Horwin CB8-V/Ux-x series is low insertion loss combiners with ferrite isolators used for combining several transmitters into one antenna with up to 125 kHz (VHF) and 250 kHz (UHF) frequency spacing. Combiners are configured in sets of 2, 3 or 4 channels.

There are two model versions – single or dual ferrite isolators depending on the required Tx – Tx isolation. Nominal impedance is 50 Ohms with typical input SWR <1.5. Filters allow to handle up to 50 watts power.

Mounting option is specified by customer (e.g. “free standing”, vertically or horizontally into EIA 19” etc). N-type “female” connectors are used for input/output connections.

Combiners are tuned at customer specified frequencies, so transmit frequencies should be specified when ordering.

CB8 8” cavity combiner
x frequency range (V=VHF, U=UHF)
x number of Tx channels
x isolator type (1=single, 2=dual)

Model

Frequency range, MHz

Type

Tx Chanels

Insertion losses,
dB@spacing kHz

Isolation
Tx – Tx, dB

CB8-V2-1

144 – 174

single isolator

2

2,2@150

>60

CB8-V2-2

144 – 174

dual isolator

2

2,2@150

>80

CB8-V3-1

144 – 174

single isolator

3

2,7@150

>60

CB8-V3-2

144 – 174

dual isolator

3

2,7@150

>80

CB8-V4-1

144 – 174

single isolator

4

3,2@150

>60

CB8-V4-2

144 – 174

dual isolator

4

3,2@150

>80

CB8-U2-1

400 – 470

single isolator

2

2,3@450

>60

CB8-U2-2

400 – 470

dual isolator

2

2,3@450

>80

CB8-U3-1

400 – 470

single isolator

3

2,8@450

>60

CB8-U3-2

400 – 470

dual isolator

3

2,8@450

>80

CB8-U4-1

400 – 470

single isolator

4

3,3@450

>60

CB8-U4-2

400 – 470

dual isolator

4

3,3@450

>80