A switching matrix can be added to a stack of six of these filters to accomplish this. These filters feature very fast rolloff to significantly attenuate signals outside the desired passband. Never use an auto tuner with high rf power when using the band-pass filters. Not in stock , ordered only on customer request, down payment required, delay at c. Optimal frequency range 0. Filter will suppress all harmonics from the transmitter and linear amplifier. The PCB is of highest quality, with 1-oz copper layers, gold plated and 0.
Amateur Filters Traditionally, engineers have attempted to solve the problem of intermod or front end overload by brute force filtering; i. Fine engineering can be noticed and our products usually exceed our competitors in more then a few things. We will work with you to meet your schedule. So it was left up to me to figure out what was needed and repair them myself. After opening both boxes, I could see no obvious problem.
High Power Bandpass Filters - Series XL
Mitigates intra- and inter-station interference during contests and protect receiver circuitry from damage. New The Competition variants of the bandpass filter have significantly steeper skirts, i. This is a low volume production, experimental item. In the spectrum analyser photographs below the "height" of the screen is 80dB. The bandpass filter has an attenuation of 50 dB or better below 1 MHz, and 30 dB or better above 32 and up to MHz. Site by Pinnacle Web Design. This is necessary in situations where for example contest stations are located nearby.
For a stand-alone item, by far the most popular is the simple ferrite ring choke formed by winding a length of coaxial cable on to one or more ferrite rings. The fitlers suppress the second harmonix frequency by about 80 db. The relieves the receiver from extremely strong signals, which results in less cross modulation products and an increased receiver sensitivity. A good bandpass filter should be part of every receiver front end, but that is not going to happen because they would increase the cost of radios too much. I also suggest that you try to borrow a filter to see how it works for you, or get a dealer to let you try one, or just use their return policy.