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MFJs new Passive Preselector has extremely high dynamic range! It improves the performance of nearly any HF or shortwave receiver/transceiver. It vastly improves the most expensive receivers. Especially helpful to those with broadband front-ends that are prone to overload.
Protects your sensitive receiver input from damage (including switching diodes and attenuator resistors) caused by very strong signals from multi-transmitter, multi-band operation -- contests, field day, nearby hams, CBers, TV/FM/AM stations. It eliminates phantom signals by suppressing strong out-of-band signals that cause intermode, blocking and cross modulation. Completely eliminates second order intermode problems caused by strong out-of-band shortwave broadcast signals mixing and producing unwanted in band signals. MFJs unique Hi-Q series tunable circuit gives you superb performance. The tunable series tuned circuit works into a very low impedance formed by broadband toroid transformers.
Has narrow bandwidth, excellent stopband attenuation, very low loss, constant bandwidth and gain over each band. Excellent attenuation in adjacent contest bands. The entire 1.6 to 33 MHz HF band is covered in five overlapping bands. An air variable tuning capacitor, 1.8 to 1 tuning range and a vernier reduction drive gives you precision tuning.
An RF sense transmit/receiver switch w with adjustable time delay automatically bypasses your MFJ-1048 when you transmit. Also has PTT line T/R switching. Plugs between antenna and transceiver.
Fully shielded metal enclosure. Tough black finish.
We aim to dispatch all parcels within 24hrs. We are normally able to dispatch parcels SAME DAY where orders are received before 2.00pm Monday to Friday.
 
Whilst we try our best to ship same day, we cannot guarantee delivery time. You will however receive tracking details as soon as your order has been processed.
 
Please note that we do not process orders over the weekend, so orders placed after 2pm on Friday will not ship until Monday.
 
Please allow an extra processing day for international orders to enable us to complete export/import custom clearance declarations.
Be the first to review this product
Be the first to review this product