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Duplexers
Duplexer/Splitter/Combiner
 
Comet calls these "duplexers", but they are also referred to as combiners or splitters. They are basically band-pass filters, simultaneously passing RF in both directions through the common connector while the band-pass filters provide a high degree of isolation between ports.

* TX and RX from two radios at the same time into a dual-band antenna

* Combine a dual-band radio with separate outputs into a dual-band antenna

* Separate a single connector duplexed radio into separate antenna systems

* Allow a single coax run into two antennas at the top of the tower, and two radios at   the bottom by using a duplexer at both ends of the coax run, avoiding cost and weight.

Choose from versions with a variety of band-pass frequency ranges,  coax leads or no leads, and connector combinations.

 
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CF-142
2M/220MHz Duplexer
 
Band Pass        Ins Loss      Max Power
1.3-150MHz     0.2dB           600W PEP
200-480MHz    0.3dB           400W PEP

Isolation: 40dB
 
Connectors:
Common: 
SO-239 
Low pass: PL-259
High pass: PL-259
 
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CF-360A
HF/6M - 440MHz Duplexer
Band Pass        Ins Loss     Max Power
1.3-30MHz       0.2dB          600W PEP
49-470MHz      0.2dB          600W PEP
 
Isolation: 45dB minimum

CONNECTORS:
Common: SO-239
Low Pass: PL-259
High Pass:  PL-259
 
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CF-360B
HF/6M - 440MHz Duplexer
 
Band Pass        Ins Loss     Max Power
1.3-30MHz       0.2dB          600W PEP
49-470MHz      0.2dB          600W PEP
 
Isolation: 45dB minimum

CONNECTORS:
Common:  PL-259
Low Pass: SO-239
High Pass:  SO-239
 
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CF-4160K, 4160I, 4160J, 4160N
Band Pass          Ins Loss     Max Power
1.3-170MHz       0.1dB          800W PEP
350-540MHz      0.2dB          500W PEP
 
Isolation: 60dB minimum

CONNECTORS:
CF-4160K
Common: SO-239
Low Pass: PL-259
High Pass: PL-259

CF-4160I
Common: SO-239
Low Pass: PL-259
High Pass: N-Male

CF-4160J
All UHF-female connectors.  Choose your own length jumpers and insert them between your radio and the duplexer.
Common: SO-239
Low Pass: SO-239
High Pass: SO-239
 
CF-4160N  (NEW)
All N-female connectors allows low-loss N-type connectors with a jumper length of your own choosing.
Common:  N-Female
Low Pass:  N-Female
High Pass: N-Female
 
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CF-416A, 416B, 416C
Band Pass       Ins Loss    Max Power
1.3-170MHz     0.15dB      800W PEP
350-540MHz    0.25dB      500W PEP
Isolation: 60dB minumum

CONNECTORS:

CF-416A
Common: SO-239
Low pass: PL-259
High pass:  PL-259

CF-416B
Common: SO-239
Low Pass:  PL-259
High Pass: N-Male

CF-416C
Common: N-Female
Low Pass: PL-259
High Pass: N-Male
 
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CF-416W
Broad band-pass ranges allow multiple options:
 
* 2M/440MHz
* 220/440MHz
* 2M/1200MHz
* 220/1200MHz
* HF/440MHz
* Etc.......
 
Band Pass         Ins Loss    Max Power    
1.3-250MHz       .2dB          400W PEP
400-1400MHz    .3dB          200W PEP
 
Isolation: 30dB minimum

CONNECTORS:
Common: N-Female
Low Pass: PL-259
High Pass: N-Male
 
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CF-530
HF-6M-2M/440MHz Duplexer
For the IC-706/MKII/G FT-100, etc..

Band Pass      Ins Loss     Max Power
1.3-90MHz      .2dB           600W PEP
125-470MHz   .2dB           600W PEP
 
Isolation: 45dB minimum

CONNECTORS:
Common: SO-239 
Low Pass: PL-259
High Pass:
PL-259
 
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CF-530C
HF-6M/2M-440MHz Duplexer for the FT-8900
This version has a coax lead and PL-259 connector on the COMMON port. This allows you to split the common connector on the FT-8900 back into two separate connectors:  One for an HF-6M antenna, the other for 2M-440MHz antenna.
 
If desired, the 2M-440MHz connector on the CF-530C can then be split again if you want to use separate 2M and 440MHz antennas.

Band Pass       Ins Loss    Max Power
1.3-90MHz       .2dB          600W PEP
125-470MHz    .2dB          600W PEP

Isolation:  45dB minimum

CONNECTORS:                  
Common:  PL-259
Low Pass:  SO-239
High Pass:  SO-239  
                    
 
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CF-706A
HF-6M/2M-440MHz duplexer for the IC-706/MKII/G,  FT-100, etc..
To match the RX freq range of the IC-706MKII/G the CF-706A was engineered to pass the commercial FM band of 88-108MHz.

Band Pass        Ins. Loss          Max Power
1.3-57MHz       0.4dB                350w PEP
75-550MHz      0.4dB                350w PEP

Isolation: 40dB minimum

CONNECTORS:
Common: SO-239
Low pass: PL-259
High Pass:  PL-259
 

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