Est. delivery Mon, Nov 10 - Thu, Nov 20Estimated delivery Mon, Nov 10 - Thu, Nov 20
Returns:
60 days returns. Seller pays for return shipping.
Condition:
NewNew
VHF air band bandpass filter ABF128 ●High performance bandpass filter designed for VHF air band. ●Can be used not only for aviation radio receivers but also for wideband receivers. ●Used by connecting between the receiver and the antenna.
Even though the product now allows me to listen to the airband better than before, you need to be aware that the filter does have a sharp dropout after 128MHz, meaning, frequencies above, will still come thru but with noise.
I bought this product to help with reception in my environment, it has delivered, still, I wonder if, a notch filter would've performed as well.
I use the filter with an outside antenna: a J-Pole cut for the airband, on my third floor balcony. The reception with this antenna, combined with the bandpass filter, does improve reception. However, again, frequencies above 128 MHz, have a sharp drop off and interference creeps in, still usable, better than before, but, I guess this is more the antenna design than the filter's capability. Just bear in mind what frequencies you listen to most, before ordering this.
Since the filter is "fixed" to a frequency range, make sure your antenna has a good dynamic range.