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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
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
Autek Research QF-1A SSB/CW/AM Audio & Notch Filter
One of the best filters produed, shame they discontinued it.
This will make an average performing rig great, and a great rig even better, see what one owner has to say"
I have owned and used mine for about 10 years and found the performance outstanding.
They are VERY easy to use and get used to. I actully prefer using my QF-1A in many cases over the IF filters I have in the main rig.
Yes, it is that good! Shame they are still not made today.
If you find one, buy it because it will be a great addition to ANY rig combination you may have. "
This one is terminated with 3.5mm jack.
Collins 300Hz Filter for Yaesu FT-817, FT-587, FT-897
Improve your CW and PSK operating experience with the 300 Hz CW filter using factory-fresh Collins Mechanical Filter.
Essentially identical to the Yaesu YF-122C and YF-122CN.
These filters allow the FT-817(ND), 857(D), 897(D) to perform nicely in the CW and PSK modes.
The 300-Hz is often preferred by CW and PSK CONTEST operators.
This filter is properly terminated for best performance in your radio.
Easy to install. Just remove the cover and set the menu as explained in the FT-817(ND), FT-857(D), & 897(D) Manuals.
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.
Drake FL-1500 1.5MHz SSB/RTTY Filter
This is the RTTY/SSB Narrow filter for the Drake R-4C
Drake SL-500 CW Filter brand new.
Perfect for your Drake R7 or TR-7, 500hz CW filter
Drake TV-3300 low pass filter
Drake TV-3300-LP low pass filter in mint condition.
The filter Handles 1KW CW up to 30MHz. 80dB attenuation > 41MHz.
Keep the neighbours happy, Use inline to reduce RFI
Drake TV-3300 low pass filter
Drake TV-3300-LP low pass filter in good condition.
The filter Handles 1KW CW up to 30MHz. 80dB attenuation > 41MHz.
Keep the neighbours happy, Use inline to reduce RFI
FT-1000MP IF Noise Reduction Mod
Here is a worthwhile mod for the FT-1000MP: a small 70 MHz IF amplifier.
It boosts the front-end gain a few dB.
The IF gain setting in menu item 9-1 is then reduced to compensate, and the radio's background hiss is greatly reduced.
The byproduct is increased sensitivity of 2-4 dB in noise floor reduction.
This is a plug-in, no-solder mod which can be easily removed.
The IF Noise Reduction mod will also work in the Mark V and Mark V Field,
Icom FL-100 500Hz CW Narrow Filter
Icom FL-101 CW Filter
250 Hz/-6dB Filter CW/RTTY Narrow (9MHz IF) for IC-706MKIIG, IC-575, IC-725, IC-765, IC-775, IC-746, IC-R75
Icom FL-223 1.9 KHz/-6dB Filter SSB Narrow (9MHz IF)
FREE SHIPPING conus $17 shipping overseas
The Icom UT-102 Voice Synthesizer new in the box
Fits models : IC-756, IC-746, IC-706, IC-718, IC-746PRO, IC-R8500, IC-R75, IC-756PRO, IC-756PROII, IC-910H
The price includes shipping (USA only)
Inrad # 715 filter for the FT-1000MP
INRAD #715 2.8 SSB filter for 455 kHz IF, fits Yaesu FT-1000MP, MarkV and Field, FT-847, FT-890, FT-900 and FT-1000
2.8Khz SSB filter
INRAD #103 Kenwood Filter for TS-450/690/850/950/940/930
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400 Hz 8830 kHz CW 8-pole crystal filter
This filter is a replacement for the Kenwood YK-88C1. |
| Details | |
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| Bandwidth | 400 Hz |
| Center Frequency | 8830.0 kHz |
| Mode | CW |
| Shape Factor | 2.0 |
| Typical Insertion Loss | 250 Hz: < 9 dB; 500 Hz: < 7 dB; SSB/AM: < 6 dB |
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