[TenTec] filter

Greg S oldlongbeard at yahoo.com
Sun May 2 18:52:13 EDT 2021


Yes. Neither level did much. No CW filters were installed. I even attempted to play with the hardware adjustment. One could get more distortion, but not better blanking. Strange. Interestingly, my IC-7410 blanker kills the fencer pulses completely on it’s lowest level with NO distortion of strong signals. Technology marches on.
Greg, KC8HXO 

Sent from my Linux device

> On May 2, 2021, at 18:44, Bob McGraw <rmcgraw at blomand.net> wrote:
> 
> I trust you were aware the NB offered 2 different levels/width of blanking.   Also if one used the 600 or 300 Hz filters the NB function was much less efficient.
> 
> 73
> 
> Bob, K4TAX
> 
>> On 5/2/2021 5:24 PM, Greg S via TenTec wrote:
>> Interesting, Bob. I had 2 Eagles, and neither NB was worth a darn on my fencer pulses. Orion hardware blanker was pretty good.
>> Greg, KC8HXO
>> 
>> Sent from my Linux device
>> 
>>> On May 2, 2021, at 17:56, Bob McGraw <rmcgraw at blomand.net> wrote:
>>> 
>>> The Noise Blanker function is about the best there is.   The use of narrow selective filters will often make the pulse noise become a wider pulse.    A wide filter is preferred.   But considering that the noise is in the receive passband, there is little way to effectively filter it out.
>>> 
>>> It however, depending on the radio and implementation of the NB system, it may be good or not so good.    I find the hardware noise blanker as used in the Tentec Eagle to be very effective on impulse noise such as an electric fence.   However, the digital noise blanker as used in the Omni VII is not near as effective.
>>> 
>>> Usually Noise Reduction systems {i.e. NR} aren't effective with this type of noise.
>>> 
>>> 73
>>> 
>>> Bob, K4TAX
>>> 
>>>> On 5/2/2021 2:15 PM, Rodney Dewald via TenTec wrote:
>>>> Does someone know if there is a filter to filter out electric fence interference
>>>> 
>>>> Sent from Mail for Windows 10
>>>> 
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