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- DDS-1 Dual Directional Coupler
- HF-15 High Frequency Sampler
- RLB-I Return Loss Bridge
- Pelican Case
The handy RF Sensor Kit
The Sensor Kit includes the key sensors for most ham radio measurements. Check transmission lines, SWR, Return Loss, forward and reflected power for analyses with your oscilloscope. Your scope response time is far faster than any meter movement or digital display update. By using your calibrated oscilloscope and these sensors, your measurements will be far more accurate than analog meters and easier for adjustments than digital displays. You get quantitative results which make comparison and absolute measurements much more accurate.
Correct Signal Conditioning
Most oscilloscopes with 50 ohm inputs and spectrum analyzers, have power input level limits, generally -30dBM. When making measurements, such as absolute power, return loss, or forward and reflected power using your spectrum analyzer or oscilloscope, signal conditioning is essential. Our preciseRF sensors are ideal for conditioning your signals. Signal energy is coupled inductively to the output port on all our sensors. Output levels are precisely set to -30dB for correct signal level conditioning and low insertion loss. This technique ensures accurate and repeatable quantitative results.
Return Loss Bridge
The RLB-I internal reference (three ports) is a high performance ReturnLoss Bridge optimized for ham radio applications. The internal reference impedance is 50 ohms. The bridge components are precision SMD devices with a wide band 1:1 750 MHz SMD transformer using micro strip construction.
This wide band RF sample/coupler inductively couples a sample of the high power RF (up to 1.5 KW PEP) passing from the RF IN to the RF OUT connector. The sampled RF signal is at a -30 dB level; that is a power gain of .001 (i.e. a power reduction of 1000:1). This reduced level conditions the RF so that is compatible with most oscilloscope vertical input amplifiers. For example, if your scope is set to 1v/div, then each division of signal equals 31.6 volts, (i.e. as if the scope was set to 31.6 volts/div).
DDS-1 Dual Directional Coupler
The DDS-1 dual directional coupler measures forward and reflected power of a device in a 50 ohm environment. It is more precise than a simple SWR meter since the reflected and forward power may be observed directly on an oscilloscope.The RF IN port connects to the HF signal source. This source is normally the transmitter and or linear HF amplifier. The RF OUT connects to a 50 ohm load. This load can be a transmission line, antenna, or a dummy load. When the load completely absorbs the energy from the signal source, little if any power is reflected,