guide.
>
>
>
> Regards
>
> JC
>
> N4IS
>
>
>
> *From:* Filipe Lopes [mailto:ct1...@gmail.com]
> *Sent:* Monday, October 12, 2015 9:52 AM
> *To:* JC
> *Cc:* topBand
> *Subject:* Re: Topband: Commond mode choke for Beverage
>
>
>
> Hello JC,
&g
Thanks for this testing suggestiong Eddie, it will sure be a good way to
check if it works or not.
73's Filipe Lopes
CT1ILT - CR6K
F4VPX - TM3M
2015-10-12 20:14 GMT+02:00 Eduardo Araujo :
> >> With these ferrites I ask the same question, should I put the choke
> close
> >> to the 9:1 Balun or ne
Thanks for this grounding tip too Jim.
73's Filipe Lopes
CT1ILT - CR6K
F4VPX - TM3M
2015-10-13 4:03 GMT+02:00 Jim Brown :
> On Mon,10/12/2015 1:27 PM, JC wrote:
>
>> It works like a voltage divider where the impedance to ground should be
>> lower as possible to give you more attenuation like 1
On Mon,10/12/2015 1:27 PM, JC wrote:
It works like a voltage divider where the impedance to ground should be lower
as possible to give you more attenuation like 1k/500ohms versus 1K/5 ohms
divider.
Yes.
But to expand on this -- often the interference is coupled into a gain
stage or RX by a
will be a specialist after reading this guide.
Regards
JC
N4IS
From: Filipe Lopes [mailto:ct1...@gmail.com]
Sent: Monday, October 12, 2015 9:52 AM
To: JC
Cc: topBand
Subject: Re: Topband: Commond mode choke for Beverage
Hello JC,
Thanks for your answer.
I just ordered a few
Eduardo Araujo via Topband wrote:
> My two cents..It was interesting during the installation of
> the last beverage, we have only #31 core, so we placed it at the
> receiver side. Disconnecting the coax at the bev feed point and
> shorting the coax there, many AM broadcast stations could
>> With these ferrites I ask the same question, should I put the choke close
>> to the 9:1 Balun or near the switching box and how many turns? some bevs
>> have the feed point at +- 60m away from the switching box.
My two cents..It was interesting during the installation of the last
beverage,
Thanks Jim and all for the help.
Mix #31 cores are already ordered in mouser.
73's cu on low bands
Filipe LOPES
CT1ILT CR6K
Sent from my SAMSUNG GALAXY S4
Em 12/10/2015 17:39, "Jim Brown" escreveu:
> On Mon,10/12/2015 6:51 AM, Filipe Lopes wrote:
>
>> With these ferrites I ask the same questio
On Mon,10/12/2015 6:51 AM, Filipe Lopes wrote:
With these ferrites I ask the same question, should I put the choke close
to the 9:1 Balun or near the switching box and how many turns? some bevs
have the feed point at +- 60m away from the switching box.
Use the #31 material. Wind at least 20 tur
On Mon,10/12/2015 5:45 AM, Filipe Lopes wrote:
I am about to add a common mode choke to isolate the antenna from its
feedline to each of my beverages and I only have FT240-61 ferrites.
#61 is a terrible material for use as a common mode choke below 500 MHz.
Try to find #31 or #43, and wind LOT
, VE3EA
- Originalna poruka -
Pošiljalac: Filipe Lopes
Datum: Ponedeljak, Oktobar 12, 2015 15:52
Tema: Re: Topband: Commond mode choke for Beverage
Primalac: JC
Cc: topBand
> Hello JC,
>
> Thanks for your answer.
>
> I just ordered a few 2631803802 and 5943003801 from mo
- Originalna poruka -
Pošiljalac: JC
Datum: Ponedeljak, Oktobar 12, 2015 15:40
Tema: Re: Topband: Commond mode choke for Beverage
Primalac: 'Filipe Lopes' , 'topBand'
> Hi Filipe
>
> Zero , you should use material #31 or #77 , The core you
>
pband-boun...@contesting.com] On Behalf Of Filipe
> Lopes
> Sent: Monday, October 12, 2015 8:46 AM
> To: topBand
> Subject: Topband: Commond mode choke for Beverage
>
> Hi guys,
>
> I am about to add a common mode choke to isolate the antenna from its
> feedline to each of my
mode choke for Beverage
Hi guys,
I am about to add a common mode choke to isolate the antenna from its
feedline to each of my beverages and I only have FT240-61 ferrites. My
question is how many turns should I do on the ferrite using RG58 (all my
bevs are fed with RG58). Also should I put the choke
Hi guys,
I am about to add a common mode choke to isolate the antenna from its
feedline to each of my beverages and I only have FT240-61 ferrites. My
question is how many turns should I do on the ferrite using RG58 (all my
bevs are fed with RG58). Also should I put the choke near the 9:1 balun or
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