Directional Couplers
Model 58x2-E Dual Flanged
Model 58x4-N Quad Non-Flanged
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Shively Labs manufactures directional couplers to provide constant monitoring of main-line RF power and to detect RF system problems as they are manifested by reverse power flow (reflected power). A directional coupler output can activate such protection systems as transmitter shutdown or transmitter power reduction, and can display incident and reflected power using an optional reflectometer display unit.
A single directional coupler monitors RF power in one direction only; that is, either incident or reflected power. A dual directional coupler monitors both incident and reflected power. The coupled output is RF, but various detectors can be supplied to convert the RF.
General Specifications: |
| Frequency: |
2 - 250 MHz |
| Coupling Range: |
40 - 55 dB; other values by request |
| Directivity: |
30 dB standard; 40 dB available by request |
| Typical VSWR: |
1.05 : 1 |
| Output: |
RF standard |
| Loads: |
included in RF couplers |
These directional couplers are designed so that a spectrum analyzer can be attached directly to them, thus displaying the frequency spectrum and showing any distortions. An optional RF monitoring port is available, to provide a nondirectional, uncalibrated RF signal for less-precise monitoring.
The couplers have the added feature of a building block design which allows both detectors and loads to be removed in the field for purposes of checking the individual parts; i.e. detector, load or basic coupler. For military, airborne, or other requirements which exceed the standard specifications, contact the factory for a quotation.
Specifications by Model:
| Model |
Size |
Flanged/
Non-Flanged |
No. of
Ports |
Power
Rating, kW |
Length,
flange-flange
or overall(in) |
Weight,
approx. (lb) |
| 5821-E
| 1-5/8" |
EIA |
1 |
15 |
12" F-F
|
6 |
| 5821-N
| 1-5/8" |
NF |
1 |
15 |
11.25" OA
|
4 |
| 5822-E
| 1-5/8" |
EIA
|
2
|
15 |
12" F-F
|
6 |
| 5822-N
| 1-5/8" |
NF |
2 |
15 |
11.25"
OA
|
4 |
|
|---|
| 5831-E
|
3-1/8"
|
EIA
|
1 |
40
|
12" F-F
|
11
|
| 5831-N
|
3-1/8"
|
NF |
1 |
40
|
11.25" OA
|
9
|
| 5832-E
|
3-1/8"
|
EIA
|
2
|
40
|
12" F-F
|
11
|
| 5832-N
|
3-1/8"
|
NF |
2
|
40
|
11.25" OA
|
9
|
| 5833-E
|
3-1/8"
|
EIA
|
3
|
40
|
12" F-F
|
11
|
| 5833-N
|
3-1/8"
|
NF |
3
|
40
|
11.25" OA
|
9
|
| 5834-E
|
3-1/8"
|
EIA
|
4
|
40
|
12" F-F
|
11
|
| 5834-N
|
3-1/8"
|
NF |
4
|
40
|
11.25" OA
|
9
|
|
|---|
| 5841-E
|
4-1/16"
|
Flanged
|
1 |
80
|
12" F-F
|
|
| 5841-N
|
4-1/16"
|
NF |
1 |
80
|
11.25" OA
|
|
| 5842-E
|
4-1/16"
|
Flanged
|
2
|
80
|
12" F-F
|
|
| 5842-N
|
4-1/16"
|
NF |
2
|
80
|
11.25" OA
|
|
| 5843-E
|
4-1/16"
|
Flanged
|
3
|
80
|
12" F-F
|
|
| 5843-N
|
4-1/16"
|
NF |
3
|
80
|
11.25" OA
|
|
| 5844-E
|
4-1/16"
|
Flanged
|
4
|
80
|
12" F-F
|
|
| 5844-N
|
4-1/16"
|
NF |
4
|
80
|
11.25" OA
|
|
|
|---|
| 5861-E
|
6-1/8"
|
EIA
|
1 |
160
|
12" F-F
|
|
| 5861-N
|
6-1/8"
|
NF |
1 |
160
|
12.75"
OA
|
|
| 5862-E
|
6-1/8"
|
EIA
|
2
|
160
|
12" F-F
|
|
| 5862-N
|
6-1/8"
|
NF |
2
|
160
|
12.75" OA
|
|
| 5863-E
|
6-1/8"
|
EIA
|
3
|
160
|
12" F-F
|
|
| 5863-N
|
6-1/8"
|
NF
|
3
|
160
|
12.75" OA
|
|
| 5864-E
|
6-1/8"
|
EIA
|
4
|
160
|
12" F-F
|
|
| 5864-N
|
6-1/8"
|
NF
|
4
|
160
|
12.75" OA
|
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Last updated: 09/18/2007
Webmaster: Al Friend
© copyright 2007 Howell Laboratories, Inc.
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