Modules may be combined to give an arbitrary power level
Frequency and SWR specifications may be customised to suit specialised applications.
|Full Power/(Half Power)|
|Model||Freq Range (MHz)||P1dB||Max SWR|
*Modules tolerate higher mismatches at lower power with protection based on the magnitude of reverse power.
Conservative power ratings. Transistors are operated well within manufacturer limits. Transistors are the latest generation ruggedized types specified to handle 65:1 mismatch. They easily cope with infinite mismatch for short time periods.
The modules feature excellent pulse handling characteristics with fast rise and fall times. Combining is fully isolating to ensure graceful degradation.
Extensive protection systems including:
Low level monitoring via I2C of:
Gain Control via I2C
|Model||Type||Inputs||Freq Range (MHz)||PMAX||Typical I.L.|
Combining is fully isolating to ensure graceful degradation.
Advanced low-loss combining techniques ensure a minimum of power wastage.
HF Multi-octave dual directional couplers.
|SRF2K2CPL||2.2kw Dual Directional Coupler|
|SRF8KCPL||8kW Dual Directional Coupler|
|SRF20KCPL||20kW Dual Directional Coupler|
Couplers feature extremely low insertion loss, with excellent sample flatness and directivity over a multi-octave frequency range.
Other frequency ranges and specifications are available on request.
High power filters and associated switching are customised to suit the application. These filters are used to routinely achieve harmonic levels 70dB below the carrier.
|SRF2KFBNK-B||2kW 7-Band Switched Filter|
|SRF2KLFBNK4||4-Channel 2kW Single Band Filter 30-40MHz|
|SRF8KFBNK||8kW 7-Band Switched Filter|
Typical filter construction is by way of large cross section copper rod inductors and high power, low loss ceramic capacitors.
Typical switch construction utilises vacuum relays rated to over 100 million cycles.
Schach RF has built filters to handle over 8kW of CW power in the HF range.