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Autek Research QF-1 Filter #2

Autek Research QF-1 Filter

This Autek Research QF-1 audio filter features: Peak, Notch and Low Pass.

Input is via a hard wired ¼ inch cable off the rear panel.

Operates from 120 VAC

Our price: $45.99 (£27.59)
Market price: $0.00
Quantity

Collins R-390A F455N-80 P/N 526-9161-000 8KC Filter

Collins R-390A F455N-80 P/N 526-9161-000 8KC Filter

These Collins Mechanical Filter is in excellent condition!

This sale is for ONE filter and NOT all 3

This is the optional 8.0 KC filter for the Collins R-390A Communications Receiver.

Removed from a working receiver so it should be okay however this item is sold as is mainly due to its age and the fact I dont believe they can be repaired if it ever goes wrong.

The photograph is the actual filters for sale.

Our price: $99.00 (£59.40)
Market price: $0.00
Quantity

Drake 8KHz Filter
Drake 8KHz Filter, Free Shipping, CONUS
Our price: $49.99 (£29.99)
Market price: $0.00
Quantity

Drake SPR-4 6KHz Filter

Drake SPR-4 6KHz Filter,

Our price: $49.99 (£29.99)
Market price: $0.00
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INRAD # 711 1.8KHz Yaesu SSB Filter

INRAD # 711 1.8KHz Yaesu SSB Filter

Brand New never fitted.

Fits Yaesu FT-1000, FT-1000MP, FT-1000MP MKV, FT-1000MP MKV Field, Elecraft K3

 

1800 Hz 8215 kHz SSB 8-pole crystal filter

 

 

Details
 
Bandwidth 1800 Hz
Center Frequency 8215.0 kHz
Mode SSB
Shape Factor 1.5
Typical Insertion Loss 250 Hz: < 9 dB; 500 Hz: < 7 dB; SSB/AM: < 6 dB

 

Our price: $110.00 (£66.00)
Market price: $130.00 , save 15%
Quantity

INRAD #91 SSB Narrow Filter
INRAD #91 SSB 1.8KHz Narrow Filter for Kenwood
Our price: $99.00 (£59.40)
Market price: $130.00 , save 24%
Quantity

INRAD FT-1000MP INRAD Roofing Filter

International Radio (INRAD) FT-1000MP Roofing Filter

This roofing filter substantially reduces the third order intermodulation from multiple strong signals in the 2 to 20 kHz region either side of the tuned frequency.

It has much of the benefit of the IF Noise Reduction Mod and in addition it reduces the close in IMD.

This is particularly important for stations with big antennas or stations which regularly receive loud signals.

This is a plug-in, no-solder mod that can be easily removed.

The roofing filter also works in the Mark V and Mark V Field, except it requires soldering two connections.

Note: This unit cannot be installed along with the Inrad FT-1000MP IF Noise Reduction Mod.

Only one or the other can be used. The product has been reviewed in Feb 2005 QST and Jan 2005 RadCom.

Full installation instructions are supplied , it's so simple, disconnect one wire, place the filter in place and reconnect the wire and your good to go, now how simple is that.

Well dont INRAD for producing a great filter for a great rig.

Our price: $125.00 (£75.00)
Market price: $179.00 , save 30%
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Kenwood YG-455C-1

Kenwood YG-455C-1 500Hz CW Filter

It is the plug in type the will work in the 450, 850, 940, 950, 690 series and others.

This unit is in excellent condition and is warranted fully functional

Our price: $99.99 (£59.99)
Market price: $249.00 , save 60%
Quantity

Kenwood YK-88SN-1 Filter

Kenwood YK-88SN-1 SSB Narrow Filter new in the box

Our price: $121.25 (£72.75)
Market price: $152.25 , save 20%
Quantity

Kokusai Mechanical Filter MF 455ZL-21H 455Mhz (CLONE)

 Kokusai Mechanical Filter MF 455ZL-21H 455Mhz 

Our price: $39.99 (£23.99)
Market price: $0.00
Quantity

Kokusai Mechanical Filter MF 455ZU-21H 455Mhz

 Kokusai Mechanical Filter MF 455ZU-21H 455Mhz 

Our price: $39.99 (£23.99)
Market price: $0.00
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MFJ-1040B preselector

MFJ-1040B preselector

The MFJ-1040B preselector boosts signals from 1.8 to 54 MHz. It utilizes dual gate MOSFET, bipolar transistors for low noise and high gain.

Push-button switches provide for two receivers, two antennas, 20 dB attenuator and ON/BYPASS.

The band switch selects: 1.8-3, 3-6, 6-15 and 15-60 MHz. Controls for Delay, Gain, Band and Tune.

Unlike most preselectors, which are for receive-only, the MFJ-1040B may be used for transceiver.

It has a relay that automatically bypasses the amplifier when transmitting.

It can handle a transmit signal up to 150 watts PEP.

Rear panel jacks provide for the use of either RCA phono plugs or PL-259 connectors.

Size: 6 x 2 x 6 inches. Requires 9-12 VDC

 

Our price: $74.99 (£44.99)
Market price: $139.99 , save 46%
Quantity

Motorola MT-3 10.7MHz generator

Motorola MT-3 10.7MHz generator

This was part of a package we collected recently, sold as is, untested.

Our price: $12.99 (£7.79)
Market price: $0.00
Quantity

Murata CFM455K D Filter for IC-735

Murata CFM455K D Filter for IC-735

Our price: $12.99 (£7.79)
Market price: $0.00
Quantity

RFI Choke RCT2W

RFI RCT2W Choke

Fits RG58, RG8X, RG59, mini-8, etc

Our price: $2.00 (£1.20)
Market price: $0.00
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SignalLink SL-1 Sound Card - Radio Interface

SignalLink SL-1 Sound Card - Radio Interface

Supplied with the  Power Supply and leads as shown, The Lead is wired for a Kenwood.

  • No Serial or USB Port Required
  • Complete Radio Isolation
  • Adjustable Rx & Tx Levels
  • Variable Transmit Delay
  • Works with ALL Radios
  • Uses Mic, Data, or Accy Port
  • Supports All Available Digital
    and Voice Modes

This is an advanced Sound Card to Radio interface

For full specs PLEASE CLICK HERE

Our price: $45.00 (£27.00)
Market price: $79.99 , save 44%
Quantity

Timewave PK-232 DSP Multimode Data Controller

Timewave PK-232 DSP Multimode Data Controller

This is the advanced DSP model

 Timewave’s customers swear by their DSP filters and PK-232 owners love the flexibility and reliability of the most popular data controller ever built.  Weak signals magically appear from the noise and QRM bounces off the new DSP filters for cleaner copy with fewer errors than the old analog filters.

The PK-232/PSK brickwall filters have tighter bandwidth and steeper skirts for improved noise and QRM rejection. New PK-232 firmware (Ver. 7.2) allows a wider selection of filters than the original PK-232, so the filter can match the mode. The correct DSP filter is automatically selected when you choose an internal mode. In RTTY, Timewave’s proven Twin Peak Filters pluck the mark and space tones from the noise and QRM for great copy. In PACTOR, the filter bandwidth automatically changes when the baud rate shifts in response to the error rate of the link. In Morse (CW), the operator can preset either 100 Hz or 200 Hz bandwidth. The PK-232/PSK is compatible with all existing software terminal programs for the PK-232.

The PK-232/PSK supports all the new sound card modes in addition to all of the existing PK-232 modes - Pactor, VHF/HF Packet, AMTOR/SITOR, Baudot, ASCII, Morse, HF Weather FAX, TDM, and NAVTEX. 

Our price: $199.99 (£119.99)
Market price: $531.00 , save 62%
Quantity

Yaesu FM-747

Yaesu FM-747 FM Module

The Yaesu FM-747 can be installed in the FT-840 to permit narrow-band FM reception and transmission, as used within the 10 meter (29 MHz) amateur band for simplex and repeater operation.

Our price: $89.99 (£53.99)
Market price: $0.00
Quantity

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Radio Mart, Radio Communication Equipment & Systems, Georgetown, KY




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