General purpose Dual Port, by-Pass relay

100 Watts RF power rating
DC - 1300MHz


LF-HF-VHF-UHF dual port, by-pass relay features:

- Configuration: Default By-Pass.
- Incorporating Quad switching telecom RF relays.
- Frequency range: DC - 1300MHz
- Insertion loss: 0.003dB
- Isolation: >100 dB typ.
- Power rating: 100 W max.
- Impedance: 50 Ohm
- Power supply: 11-15 Volts DC/60 mA (Active state). Diode protection.
- Switching time:
- Set:5mS
- Reset: 4mS
- Life expectancy (Mechanical): 20,000,000 operations (at 18,000 operations/hr)
- External Dimensions:
- VHF model: 55x111x40mm (2.16x4.37x1.57in)
- Connectors: N type for Antenna Input/Output; BNC for Device Input/Output. Default.
- Remote Control cable :
  Connector type: Foster 4 vias. Shielded control cable with snap-on
  RFI-EMI suppressor cores included.


  Some application examples (Click on picture to enlarge)  

Diagram 1

Diagram 2 Diagram 3  
  By-Pass_relay_example1 diagram
By-Pass_relay_example2 diagram
By-Pass_relay_example3 diagram
Basic connection
Working with two_antennas
Working with two_antennas and two radios

  LF-HF-VHF-UHF Dual Port By-Pass relays. How it works.  



Default state. (By-passed)

When the Dual Port By-Pass Relay is not activated, pins 3 and 4 of the control line connector are open or the unit is not powered the device plugged on Port B and Port C is by-passed. Both ports (B and C) are grounded.

Port A and Port R are connected.






Active state. (NO By-passed)

When the Dual Port By-Pass Relay is powered and pins 3 and 4 of the control line connector are joined the internal relays switch-over. The device Input (Port B) is connected to Antenna (Port A) and the Device Output (Port C) is connected to the Radio (Port R).

  LF-HF-VHF-UHF dual port, by-pass relay options  
  *Connectors Model Price Order  
  BNC / N

SKU: HS-710N

£ 206.00 SCR Preselector-CAT  
  BNC / SO-239 SKU: HS-710SO £ 195.00 SDual Relay  

All models include:

LF-HF-VHF-UHF Dual Port By-Pass relay, user manual in CDROM format, two BNC-BNC coaxial cable tails and EMI decoupling, shielded remote control cable with connector.

* Other connector options available, please ask.


DC-3GHz coaxial relay. Slim size




The DC-3GHz coaxial relay slim size is a remote switchable electromechanical device designed to commute a wide RF spectrum of signals from a common input to either of two outputs (SPDT configuration). Typical applications include: WIFI, cable modems and line cards, CATV, measurement and test equipment, satellite / audio / video tuners, wireless base stations and antennas, RF power stages, etc.


Technical Data




- Frequency range: DC to 3GHz.
- Impedance: 50Ω
- Max. switching capacity: 100Watts (HF); 50 W @ 2.5 GHz
- Absolute Max. CW RF power (WSWR 1.2): 65Watts @ 3GHz.
- Activation voltage: 11-15 VDC/14mA standard.
  (5VDC and 24VDC voltages available)
- Switch-ON: 5mS.
- Switch-OFF: 6mS.
- Bounce time: 3mS.
- Connectors: SMA
- Dimensions: 37mmx37mmx20mm ( 1.456x1.456x0.787in)
- Weight: 44grams.

Relay contacts:

- Contact arrangement: SPDT
- Max. switching voltage: 220VDC/250VAC
- Max. switching current: 2 Amp
- Switching endurance: 10,000,000 operations
- Dielectric strength:
between open contacts 600Vrms
between contact and coil 1000Vrms
-Surge withstand:
between open contacts 1000Vrms
between contact and coil 1500Vrms

  Insertion loss plot Isolation plot WSWR plot  
  Insertion loss plot
(click on image to enlarge)
Isolation plot
(click on image to enlarge)
WSWR plot
(click on image to enlarge)


  DC-3GHz coaxial relay. Slim size; SKU: HS-775 £ 145.00 SCR Preselector-CAT  
The set includes:
3GHz slim coaxial relay and user manual in CDROM format.

  Solid State RF Relay. DC-3GHz. Isolation port to port >100dB. No moving parts. No relays  

General purpose SPDT solid state RF Relay Absorptive for telecommunication applications. No moving parts, No relays
Our solid state RF Relay do not incorporate any moving parts instead it uses GaAs pHEMT technology switching cells offering low thermal resistance for enhanced mean time between failures (MTBF).


- General-purpose medium-power switching in telecommunication applications.
- Switching on 802.11b, g WLAN and Bluetooth systems.



Solid State Absortive RF Relay manual. Rev02




Operating Frequency: DC - 3GHz
Switch Configuration: Form C, SPDT Absorptive.
Insertion loss type: 0.3dB @1GHz. ; 0.4dB @3GHz.
RF1-RF2 port to port Isolation: >100dB
VSWR: 1.2 max.
IP3: 52dBm type
RF power rating absolute max.@ 5VDC:
3 watt(+35dBm) all operating range; 6W(38dBm) @900MHz
Control switching: 1 bit; "0" RFC-RF1; "1" RFC-RF2
Switching time (ON-OFF): 35nS.
Power supply: 3V-5VDC/6mA
Connectors: SMA
Dimensions: 74x37x20mm(2.91x1.45x0.78in)


Simplify diagram

  Solid State RF Relay ; SKU: HS-790 £ 95.00 SCR Preselector-CAT  
  The set includes: SPDT solid state RF switch and user manual in CDROM format.