Filtros para radios

The HF Tuneable Receive Preamp comprises four bandpass coupled pairs of tuned circuits that together with a variable capacitor tune 2-4, 4-8, 8-16, & 16-32MHz. The graph shows the gain against frequency characteristic for each of the filters.

The unit shown in the pictures is the RF Switched version that can be transmitted through with 150W. RF switching will occur reliably with power as low as 500mW. This wideband preamplifier is preceded by a selection of four bandpass coupled pairs of tuned circuits that together with a variable capacitor tune 2-4, 4-8, 8-16, & 16-32MHz.

Kenwood YK-88S1 SSB 2.7 KHz filter. This one taken from a TS-940S, but will fit other Kenwood radios. What you see is what you get.

This filter will greatly improve the reception in this very popular band. The filter will increase the S/N ratio and reduce potential interference. It uses one SAW component, measures only 50 x 10mm and features edge pads for easy soldering of a RF shield.

Kenwood YK-88C-1 CW filter. Fits Kenwood TS-450/690, TS-570, TS-850, TS-930, TS-940, TS-950 and possibly other radios. What you see is what you get.

BULK BUY QUANTITY 7. Sorry but I can not find any further information on these filters. I know that they have been in storage for many years.

The normal disclaimer applies.

1 New Mini-circuits PLP-15 DC-15Mhz low pass filter. 50 Ohm impedance. Other parts for RF applications are also available.

Can be clipped on to power, speaker or coaxial cable of up to 13mm diameter or for wrapping speaker and power cables around.

LTM455DW CFWM455D MURATA EQUIVALENT. 20 KHZ. TOTAL BANDWIDTH 455 KHZ. 5 LEG.

This filter isnew but has been in storage for some years.

Features Compact handheld battery operated DSP noise cancelling module New improved stereo/dual channel noise cancelling algorithm Processed speech clearer and more intelligible Easy to use controls for all functions Use with mono, stereo or two separate audio channel inputs Ideal for portable use, DXing, and special event stations Use with headphones or a speakers Over 40 hours battery life with 2 x AA alkaline or AA NiMH batteries Size - 125 x 70 x 37mm Unit weight - 0.125Kg  

Sorry but I do not have any further technical details on these filters. The normal disclaimer applies.

Amplified DSP Noise Eliminating PCB Module - This module incorporates an on board power amplifier and has an integral microcontroller connected to a small keyboard assembly. The microcontroller and keyboard provide single button operation of all the module's functions.

4 OR 8 levels of DSP selection and DSP on/off are available via a small pushbutton interface keyboard. The module is supplied with Generic Instructions and fitting guides for the Yaesu FT817, Kenwood TS50 and Icom 706 MK II G.

This filter isnew but has been in storage for some years.

This filter isnew but has been in storage for some time.