Today's Message Index:
----------------------
1. 05:13 AM - TICO (cjpilot710@aol.com)
2. 09:26 AM - Re: radio noise after installing plug conversion kit (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
3. 09:27 AM - Re: Re: White Paper on Russian Generator System (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
4. 09:35 AM - Re: radio noise after installing plug conversion kit (Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E)
5. 11:37 AM - Re: radio noise after installing plug conversion kit (Roger Kemp)
6. 12:08 PM - Re: radio noise after installing plug conversion kit (Jan Mevis)
7. 02:15 PM - Re: radio noise after installing plug conversion kit (Roger Kemp)
8. 09:58 PM - Re: radio noise after installing plug conversion kit (Jan Mevis)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
The date for the TICO show is March 15th (media day) 16 17 & 18 is the
show days.
Guy to contact is Ken Terry at _kenterry@cfl.rr.com_
(mailto:kenterry@cfl.rr.com)
<BR><BR><BR>**************************************<BR> AOL now offers free
email to everyone. Find out more about what's free from AOL at
http://www.aol.com.
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | radio noise after installing plug conversion kit |
Doc, your buzzing sound is more than likely the tach generator.
Pull the cannon plug off at the tach gen and try it with it disconnected
completely.
If that helps, check the shield connection AT the tach gen plug closely.
Mark Bitterlich
P.s. Are you sure you did not mean RG-142b/u ??
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: Thursday, February 22, 2007 17:52
Subject: RE: Yak-List: radio noise after installing plug conversion kit
Jan,
Have been lurking and probably should have added something to this issue
earlier. I did the plug conversion on my 50 also. Had a lot of
interference/ "buzzing" on the radio. Could only get good signal (clear
transmissions) from A/C close by or near the AF. Traced it down to the
Russian radio cable and B/C connectors. I changed out to R 146 cable and
new B&C connectors with marked improvement. I have a Becker VHF
installed since I had pulled the Briz radio over a year ago. Had no
problems until after I did the plug conversion. I had already changed
out the antenna from the Russian so I knew it was not a West vs East
technology issue.. or so I thought. I had continued to use the Ru radio
cable with new B&C connectors.
Once I changed the RU cable for R 146 all improved.
Now I have a buzz and pop at the ends of transmissions. If I turn the
automatic squelch off I have a continuous buzzing that is only present
with the engine running. It is not associated with throttle changes. So
guess I am now going to add a filter to the DC line into the radio to
see if that fixes it.
Doc
> [Original Message]
> From: Jan Mevis <jan.mevis@informavia.be>
> To: <yak-list@matronics.com>
> Date: 2/22/2007 3:53:21 PM
> Subject: Yak-List: radio noise after installing plug conversion kit
>
>
> Dear Mark,
>
> THANKS A LOT! Your advise helped me solve the problem : the
> BNC-connector
of
> the antenna cable got disassembled! So I HEREBY CONFIRM : THE PLUG
> CONVERSION KIT CABLES ARE NOT THE SOURCE OF THE RADIO NOISE IN MY
PLANE!
>
> I was mislead because my radio showed the noise problem after I did
> the
plug
> conversion, so it was logical to assume that there was a correlation.
> For one reason or another the antenna cable could move around a bit.
> And all things that are not well strapped in a Yak will cause problems
> sooner or later. I did the test as you suggested, and bingo, problem
diagnosed !
>
> Once again, thanks a lot!
>
>
> Jan Mevis
> RA2005K
> YK50
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G
> CIV Det Cherry Point, MALS-14 64E
> Sent: dinsdag 20 februari 2007 22:48
> To: yak-list@matronics.com
> Subject: RE: Yak-List: White Paper on Russian Generator System
>
> --> Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Jan,
>
> Let me repeat one thing if I may. If the noise to your radio goes
> away completely when you disconnect the (almost) BNC connector on the
> back of the radio that connects the antenna, then there is absolutely
> no use in messing with the radios wiring what-so-over. Trust me on
this one.
> Radio noise can come in via a few different sources. The wires you
> speak of, or the antenna, or both. If you disconnect the coax
> connection to the radio, AT the radio, and all noise goes away
> completely, then all noise is coming in from the antenna itself.
> Noise filters will NEVER stop this type of noise. That is because the
> radio is actually RECEIVING what it is SUPPOSED to be receiving. I.E.
"RF
> ENERGY".
>
> As for spark energy.... You mention the spark plug cables. I agree ...
> More or less.... But don't forget that the spark plugs now being used
> are much MUCH better than anything being used before. Leaps and
> bounds better.
>
> If the shielding on the Tach Generator becomes completely
> disconnected, the resultant noise can be so strong that it actually
> causes DAMAGE to the receiver front end in a Balken-5 (sp) model radio
> flying in a 52. I have actually seen that happen and have repaired
the damage myself....
> So believe me, it's true.
>
> Pulling the antenna connector off the radio will tell the story.
>
> Mark
>
> P.s. There is ONE very REMOTE possibility that can help if all noise
> STOPS when you pull off the coax cable connector from the radio, and
> that is called "common mode interference". In cases like that, noise
> comes down the shield of the coax and gets into the radio THAT way.
> This can be eliminated by using torroidal chokes on the exerior of the
> coax close to the radio. They look like small donuts, and using the
> right ones are important. Regardless, this still presumes that all
> noise goes away when you disconnect the antenna coax from the radio.
>
> If that does as I expect it to do, and all noise goes away, then put
> the coax back on the radio, and disconnect the connection from the
> antenna itself. It the noise is still gone, it is NOT common mode
> interference, and you either need to turn up the squelch, or eliminate
> the noise at the source.... Not radio wiring.
>
>
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: White Paper on Russian Generator System |
You're right Rob!
But don't worry, it will come back with a vengeance when the same part
goes bad on another YAK product flying around someplace! :-)
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Rob Rowe
Sent: Thursday, February 22, 2007 19:50
Subject: Yak-List: Re: White Paper on Russian Generator System
Well Mark with that out of the way I guess we've done this topic to
death now!
Thanks, Rob R
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | radio noise after installing plug conversion kit |
Jan, the BNC connection on the back of the Russian radio is NOT really a
BNC connector. It is not a STANDARD BNC connector is what I SHOULD say,
because it is in fact a bayonet type as you already clearly know. In
order to get a standard BNC type to fit properly, you need to use a
jewelers file and where the detect is on the connector that is on the
coax, make the detent go in more deeply, then file off the ridge created
when you do that. The result is that the connector will not take a pair
of pliers to get on and off.
A better solution would be to simply solder in a standard female BNC
bulkhead connector to the radio itself. I would replace the coax with
RG-142B/U Teflon Dielectric, Double Shielded coax. If you have
difficulty in finding all this, I can send you a kit... You pay
shipping! :)
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Friday, February 23, 2007 2:10
Subject: RE: Yak-List: radio noise after installing plug conversion kit
Doc,
It is as if you've got to change it all : either the whole Russian radio
system, or a complete western system. Maybe a problem with impedance
changes etc? I had to modify the microphone connections so that I could
use a Dave Clark headset (the Russian push-to-talk system did not put
one connector of the microphone to ground when speaking).
My Briz (which I put in place for a Ziabrik) works reasonably well. But
I had the trouble putting a BNC connector on the Russian antenna cable
(the ziabrik needed a very small connector, comparable to what is used
in WIFI equipment). Unfortunately until now I could not find a connector
that really fits. That's also the reason why the connector got damaged
on my plane after
5 months of intensive use. It's an absolute coincidence that this
happened just after changing the plug cables.
But I do also only have clear transmissions when I'm close by or near
other radio stations. So I 'd better change the whole antenna system, I
fear.
Thanks for the input! This is also very helpful!
All the best,
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: donderdag 22 februari 2007 23:52
Subject: RE: Yak-List: radio noise after installing plug conversion kit
Jan,
Have been lurking and probably should have added something to this issue
earlier. I did the plug conversion on my 50 also. Had a lot of
interference/ "buzzing" on the radio. Could only get good signal (clear
transmissions) from A/C close by or near the AF. Traced it down to the
Russian radio cable and B/C connectors. I changed out to R 146 cable and
new B&C connectors with marked improvement. I have a Becker VHF
installed since I had pulled the Briz radio over a year ago. Had no
problems until after I did the plug conversion. I had already changed
out the antenna from the Russian so I knew it was not a West vs East
technology issue.. or so I thought. I had continued to use the Ru radio
cable with new B&C connectors.
Once I changed the RU cable for R 146 all improved.
Now I have a buzz and pop at the ends of transmissions. If I turn the
automatic squelch off I have a continuous buzzing that is only present
with the engine running. It is not associated with throttle changes. So
guess I am now going to add a filter to the DC line into the radio to
see if that fixes it.
Doc
> [Original Message]
> From: Jan Mevis <jan.mevis@informavia.be>
> To: <yak-list@matronics.com>
> Date: 2/22/2007 3:53:21 PM
> Subject: Yak-List: radio noise after installing plug conversion kit
>
>
> Dear Mark,
>
> THANKS A LOT! Your advise helped me solve the problem : the
> BNC-connector
of
> the antenna cable got disassembled! So I HEREBY CONFIRM : THE PLUG
> CONVERSION KIT CABLES ARE NOT THE SOURCE OF THE RADIO NOISE IN MY
PLANE!
>
> I was mislead because my radio showed the noise problem after I did
> the
plug
> conversion, so it was logical to assume that there was a correlation.
> For one reason or another the antenna cable could move around a bit.
> And all things that are not well strapped in a Yak will cause problems
> sooner or later. I did the test as you suggested, and bingo, problem
diagnosed !
>
> Once again, thanks a lot!
>
>
> Jan Mevis
> RA2005K
> YK50
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G
> CIV Det Cherry Point, MALS-14 64E
> Sent: dinsdag 20 februari 2007 22:48
> To: yak-list@matronics.com
> Subject: RE: Yak-List: White Paper on Russian Generator System
>
> --> Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Jan,
>
> Let me repeat one thing if I may. If the noise to your radio goes
> away completely when you disconnect the (almost) BNC connector on the
> back of the radio that connects the antenna, then there is absolutely
> no use in messing with the radios wiring what-so-over. Trust me on
this one.
> Radio noise can come in via a few different sources. The wires you
> speak of, or the antenna, or both. If you disconnect the coax
> connection to the radio, AT the radio, and all noise goes away
> completely, then all noise is coming in from the antenna itself.
> Noise filters will NEVER stop this type of noise. That is because the
> radio is actually RECEIVING what it is SUPPOSED to be receiving. I.E.
"RF
> ENERGY".
>
> As for spark energy.... You mention the spark plug cables. I agree ...
> More or less.... But don't forget that the spark plugs now being used
> are much MUCH better than anything being used before. Leaps and
> bounds better.
>
> If the shielding on the Tach Generator becomes completely
> disconnected, the resultant noise can be so strong that it actually
> causes DAMAGE to the receiver front end in a Balken-5 (sp) model radio
> flying in a 52. I have actually seen that happen and have repaired
the damage myself....
> So believe me, it's true.
>
> Pulling the antenna connector off the radio will tell the story.
>
> Mark
>
> P.s. There is ONE very REMOTE possibility that can help if all noise
> STOPS when you pull off the coax cable connector from the radio, and
> that is called "common mode interference". In cases like that, noise
> comes down the shield of the coax and gets into the radio THAT way.
> This can be eliminated by using torroidal chokes on the exerior of the
> coax close to the radio. They look like small donuts, and using the
> right ones are important. Regardless, this still presumes that all
> noise goes away when you disconnect the antenna coax from the radio.
>
> If that does as I expect it to do, and all noise goes away, then put
> the coax back on the radio, and disconnect the connection from the
> antenna itself. It the noise is still gone, it is NOT common mode
> interference, and you either need to turn up the squelch, or eliminate
> the noise at the source.... Not radio wiring.
>
>
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | radio noise after installing plug conversion kit |
Correct R-142.
Had not thought about the Tach generator dispite reading you post earlier.
Got to wrapped around another axel!
Thanks,
Doc
> [Original Message]
> From: Bitterlich, Mark G CIV Det Cherry Point, MALS-14 64E
<mark.bitterlich@navy.mil>
> To: <yak-list@matronics.com>
> Date: 2/26/2007 11:38:36 AM
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Doc, your buzzing sound is more than likely the tach generator.
>
> Pull the cannon plug off at the tach gen and try it with it disconnected
> completely.
>
> If that helps, check the shield connection AT the tach gen plug closely.
>
>
> Mark Bitterlich
>
> P.s. Are you sure you did not mean RG-142b/u ??
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: Thursday, February 22, 2007 17:52
> To: yak-list@matronics.com
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
>
> Jan,
> Have been lurking and probably should have added something to this issue
> earlier. I did the plug conversion on my 50 also. Had a lot of
> interference/ "buzzing" on the radio. Could only get good signal (clear
> transmissions) from A/C close by or near the AF. Traced it down to the
> Russian radio cable and B/C connectors. I changed out to R 146 cable and
> new B&C connectors with marked improvement. I have a Becker VHF
> installed since I had pulled the Briz radio over a year ago. Had no
> problems until after I did the plug conversion. I had already changed
> out the antenna from the Russian so I knew it was not a West vs East
> technology issue.. or so I thought. I had continued to use the Ru radio
> cable with new B&C connectors.
> Once I changed the RU cable for R 146 all improved.
> Now I have a buzz and pop at the ends of transmissions. If I turn the
> automatic squelch off I have a continuous buzzing that is only present
> with the engine running. It is not associated with throttle changes. So
> guess I am now going to add a filter to the DC line into the radio to
> see if that fixes it.
> Doc
>
>
> > [Original Message]
> > From: Jan Mevis <jan.mevis@informavia.be>
> > To: <yak-list@matronics.com>
> > Date: 2/22/2007 3:53:21 PM
> > Subject: Yak-List: radio noise after installing plug conversion kit
> >
> >
> > Dear Mark,
> >
> > THANKS A LOT! Your advise helped me solve the problem : the
> > BNC-connector
> of
> > the antenna cable got disassembled! So I HEREBY CONFIRM : THE PLUG
> > CONVERSION KIT CABLES ARE NOT THE SOURCE OF THE RADIO NOISE IN MY
> PLANE!
> >
> > I was mislead because my radio showed the noise problem after I did
> > the
> plug
> > conversion, so it was logical to assume that there was a correlation.
> > For one reason or another the antenna cable could move around a bit.
> > And all things that are not well strapped in a Yak will cause problems
>
> > sooner or later. I did the test as you suggested, and bingo, problem
> diagnosed !
> >
> > Once again, thanks a lot!
> >
> >
> >
> > Jan Mevis
> > RA2005K
> > YK50
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
> Mark G
> > CIV Det Cherry Point, MALS-14 64E
> > Sent: dinsdag 20 februari 2007 22:48
> > To: yak-list@matronics.com
> > Subject: RE: Yak-List: White Paper on Russian Generator System
> >
> > --> Point,
> > MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > Jan,
> >
> > Let me repeat one thing if I may. If the noise to your radio goes
> > away completely when you disconnect the (almost) BNC connector on the
> > back of the radio that connects the antenna, then there is absolutely
> > no use in messing with the radios wiring what-so-over. Trust me on
> this one.
> > Radio noise can come in via a few different sources. The wires you
> > speak of, or the antenna, or both. If you disconnect the coax
> > connection to the radio, AT the radio, and all noise goes away
> > completely, then all noise is coming in from the antenna itself.
> > Noise filters will NEVER stop this type of noise. That is because the
>
> > radio is actually RECEIVING what it is SUPPOSED to be receiving. I.E.
> "RF
> > ENERGY".
> >
> > As for spark energy.... You mention the spark plug cables. I agree ...
> > More or less.... But don't forget that the spark plugs now being used
> > are much MUCH better than anything being used before. Leaps and
> > bounds better.
> >
> > If the shielding on the Tach Generator becomes completely
> > disconnected, the resultant noise can be so strong that it actually
> > causes DAMAGE to the receiver front end in a Balken-5 (sp) model radio
>
> > flying in a 52. I have actually seen that happen and have repaired
> the damage myself....
> > So believe me, it's true.
> >
> > Pulling the antenna connector off the radio will tell the story.
> >
> > Mark
> >
> > P.s. There is ONE very REMOTE possibility that can help if all noise
> > STOPS when you pull off the coax cable connector from the radio, and
> > that is called "common mode interference". In cases like that, noise
> > comes down the shield of the coax and gets into the radio THAT way.
> > This can be eliminated by using torroidal chokes on the exerior of the
>
> > coax close to the radio. They look like small donuts, and using the
> > right ones are important. Regardless, this still presumes that all
> > noise goes away when you disconnect the antenna coax from the radio.
> >
> > If that does as I expect it to do, and all noise goes away, then put
> > the coax back on the radio, and disconnect the connection from the
> > antenna itself. It the noise is still gone, it is NOT common mode
> > interference, and you either need to turn up the squelch, or eliminate
>
> > the noise at the source.... Not radio wiring.
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | radio noise after installing plug conversion kit |
Thanks Mark!
I've ordered some good antenna cable (double shielded according to the
specs) and a set of quality BNC connectors. And then I'll follow your
advise: either the female connector soldered on the radio, or adapting a
male connector. I also consider replacing the antenna, but only after
testing the actual system with the new antenna cable + connectors. In the
future I might replace the Briz by a western comm/GPS device.
We've also another bureaucratic burden here in Europe : the transponder
issue. Sooner or later we will be forced to install this (even the S type
I'm afraid). So I'm thinking about making a sort of console in front of the
cockpit.
Best regards,
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich, Mark G
CIV Det Cherry Point, MALS-14 64E
Sent: maandag 26 februari 2007 18:35
Subject: RE: Yak-List: radio noise after installing plug conversion kit
MALS-14 64E" <mark.bitterlich@navy.mil>
Jan, the BNC connection on the back of the Russian radio is NOT really a
BNC connector. It is not a STANDARD BNC connector is what I SHOULD say,
because it is in fact a bayonet type as you already clearly know. In
order to get a standard BNC type to fit properly, you need to use a
jewelers file and where the detect is on the connector that is on the
coax, make the detent go in more deeply, then file off the ridge created
when you do that. The result is that the connector will not take a pair
of pliers to get on and off.
A better solution would be to simply solder in a standard female BNC
bulkhead connector to the radio itself. I would replace the coax with
RG-142B/U Teflon Dielectric, Double Shielded coax. If you have
difficulty in finding all this, I can send you a kit... You pay
shipping! :)
Mark
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
Sent: Friday, February 23, 2007 2:10
Subject: RE: Yak-List: radio noise after installing plug conversion kit
Doc,
It is as if you've got to change it all : either the whole Russian radio
system, or a complete western system. Maybe a problem with impedance
changes etc? I had to modify the microphone connections so that I could
use a Dave Clark headset (the Russian push-to-talk system did not put
one connector of the microphone to ground when speaking).
My Briz (which I put in place for a Ziabrik) works reasonably well. But
I had the trouble putting a BNC connector on the Russian antenna cable
(the ziabrik needed a very small connector, comparable to what is used
in WIFI equipment). Unfortunately until now I could not find a connector
that really fits. That's also the reason why the connector got damaged
on my plane after
5 months of intensive use. It's an absolute coincidence that this
happened just after changing the plug cables.
But I do also only have clear transmissions when I'm close by or near
other radio stations. So I 'd better change the whole antenna system, I
fear.
Thanks for the input! This is also very helpful!
All the best,
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: donderdag 22 februari 2007 23:52
Subject: RE: Yak-List: radio noise after installing plug conversion kit
Jan,
Have been lurking and probably should have added something to this issue
earlier. I did the plug conversion on my 50 also. Had a lot of
interference/ "buzzing" on the radio. Could only get good signal (clear
transmissions) from A/C close by or near the AF. Traced it down to the
Russian radio cable and B/C connectors. I changed out to R 146 cable and
new B&C connectors with marked improvement. I have a Becker VHF
installed since I had pulled the Briz radio over a year ago. Had no
problems until after I did the plug conversion. I had already changed
out the antenna from the Russian so I knew it was not a West vs East
technology issue.. or so I thought. I had continued to use the Ru radio
cable with new B&C connectors.
Once I changed the RU cable for R 146 all improved.
Now I have a buzz and pop at the ends of transmissions. If I turn the
automatic squelch off I have a continuous buzzing that is only present
with the engine running. It is not associated with throttle changes. So
guess I am now going to add a filter to the DC line into the radio to
see if that fixes it.
Doc
> [Original Message]
> From: Jan Mevis <jan.mevis@informavia.be>
> To: <yak-list@matronics.com>
> Date: 2/22/2007 3:53:21 PM
> Subject: Yak-List: radio noise after installing plug conversion kit
>
>
> Dear Mark,
>
> THANKS A LOT! Your advise helped me solve the problem : the
> BNC-connector
of
> the antenna cable got disassembled! So I HEREBY CONFIRM : THE PLUG
> CONVERSION KIT CABLES ARE NOT THE SOURCE OF THE RADIO NOISE IN MY
PLANE!
>
> I was mislead because my radio showed the noise problem after I did
> the
plug
> conversion, so it was logical to assume that there was a correlation.
> For one reason or another the antenna cable could move around a bit.
> And all things that are not well strapped in a Yak will cause problems
> sooner or later. I did the test as you suggested, and bingo, problem
diagnosed !
>
> Once again, thanks a lot!
>
>
> Jan Mevis
> RA2005K
> YK50
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G
> CIV Det Cherry Point, MALS-14 64E
> Sent: dinsdag 20 februari 2007 22:48
> To: yak-list@matronics.com
> Subject: RE: Yak-List: White Paper on Russian Generator System
>
> --> Point,
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Jan,
>
> Let me repeat one thing if I may. If the noise to your radio goes
> away completely when you disconnect the (almost) BNC connector on the
> back of the radio that connects the antenna, then there is absolutely
> no use in messing with the radios wiring what-so-over. Trust me on
this one.
> Radio noise can come in via a few different sources. The wires you
> speak of, or the antenna, or both. If you disconnect the coax
> connection to the radio, AT the radio, and all noise goes away
> completely, then all noise is coming in from the antenna itself.
> Noise filters will NEVER stop this type of noise. That is because the
> radio is actually RECEIVING what it is SUPPOSED to be receiving. I.E.
"RF
> ENERGY".
>
> As for spark energy.... You mention the spark plug cables. I agree ...
> More or less.... But don't forget that the spark plugs now being used
> are much MUCH better than anything being used before. Leaps and
> bounds better.
>
> If the shielding on the Tach Generator becomes completely
> disconnected, the resultant noise can be so strong that it actually
> causes DAMAGE to the receiver front end in a Balken-5 (sp) model radio
> flying in a 52. I have actually seen that happen and have repaired
the damage myself....
> So believe me, it's true.
>
> Pulling the antenna connector off the radio will tell the story.
>
> Mark
>
> P.s. There is ONE very REMOTE possibility that can help if all noise
> STOPS when you pull off the coax cable connector from the radio, and
> that is called "common mode interference". In cases like that, noise
> comes down the shield of the coax and gets into the radio THAT way.
> This can be eliminated by using torroidal chokes on the exerior of the
> coax close to the radio. They look like small donuts, and using the
> right ones are important. Regardless, this still presumes that all
> noise goes away when you disconnect the antenna coax from the radio.
>
> If that does as I expect it to do, and all noise goes away, then put
> the coax back on the radio, and disconnect the connection from the
> antenna itself. It the noise is still gone, it is NOT common mode
> interference, and you either need to turn up the squelch, or eliminate
> the noise at the source.... Not radio wiring.
>
>
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | radio noise after installing plug conversion kit |
Jan,
You can remove the Briz Radio and Mounts. Sacrafice you carb temp gauge and
use that 2 1/2 inch hole for your transponder (if you use a Becker unit).
Cut a second hole in you panel (2.5 inch) next to the carb temp hole and
mount a Becker 760 Com. Now if you want a GPS, you can use the old Briz
mount site to install the GPS there. That is the way I did it in my 50
atleast. Clean, out of the way and plenty of room left to do what ever I
need to do.
Besides, what are you going to do with carb temp. The 50 does not have carb
heat. Atleast mine does not. If you absolutely have to have OAT, then get
a Dynon D10. It has ten instruments in one. You get to get rid of the
inverter behind your seat and the RU ADI goes. The Dynon fits right in the
ADI slot. You will have to fabricate a square mount to fill the hole left
by the larger ADI. You now have a great HUD with mag heading across the top
of the HUD something you do not have with your current panel. If you do not
care for Dynon and want a similar instrument that has built in GPS and
moving map, then there is also Blue Mountain. I do not have any experience
with that unit and I have heard both good and bad about it.
Just a few thoughs on how to spend a few Euros.
Doc
> [Original Message]
> From: Jan Mevis <jan.mevis@informavia.be>
> To: <yak-list@matronics.com>
> Date: 2/26/2007 2:18:30 PM
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
>
> Thanks Mark!
>
> I've ordered some good antenna cable (double shielded according to the
> specs) and a set of quality BNC connectors. And then I'll follow your
> advise: either the female connector soldered on the radio, or adapting a
> male connector. I also consider replacing the antenna, but only after
> testing the actual system with the new antenna cable + connectors. In the
> future I might replace the Briz by a western comm/GPS device.
> We've also another bureaucratic burden here in Europe : the transponder
> issue. Sooner or later we will be forced to install this (even the S type
> I'm afraid). So I'm thinking about making a sort of console in front of
the
> cockpit.
>
> Best regards,
>
> Jan
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G
> CIV Det Cherry Point, MALS-14 64E
> Sent: maandag 26 februari 2007 18:35
> To: yak-list@matronics.com
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Jan, the BNC connection on the back of the Russian radio is NOT really a
> BNC connector. It is not a STANDARD BNC connector is what I SHOULD say,
> because it is in fact a bayonet type as you already clearly know. In
> order to get a standard BNC type to fit properly, you need to use a
> jewelers file and where the detect is on the connector that is on the
> coax, make the detent go in more deeply, then file off the ridge created
> when you do that. The result is that the connector will not take a pair
> of pliers to get on and off.
>
> A better solution would be to simply solder in a standard female BNC
> bulkhead connector to the radio itself. I would replace the coax with
> RG-142B/U Teflon Dielectric, Double Shielded coax. If you have
> difficulty in finding all this, I can send you a kit... You pay
> shipping! :)
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
> Sent: Friday, February 23, 2007 2:10
> To: yak-list@matronics.com
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
>
> Doc,
>
> It is as if you've got to change it all : either the whole Russian radio
> system, or a complete western system. Maybe a problem with impedance
> changes etc? I had to modify the microphone connections so that I could
> use a Dave Clark headset (the Russian push-to-talk system did not put
> one connector of the microphone to ground when speaking).
>
> My Briz (which I put in place for a Ziabrik) works reasonably well. But
> I had the trouble putting a BNC connector on the Russian antenna cable
> (the ziabrik needed a very small connector, comparable to what is used
> in WIFI equipment). Unfortunately until now I could not find a connector
> that really fits. That's also the reason why the connector got damaged
> on my plane after
> 5 months of intensive use. It's an absolute coincidence that this
> happened just after changing the plug cables.
>
> But I do also only have clear transmissions when I'm close by or near
> other radio stations. So I 'd better change the whole antenna system, I
> fear.
>
> Thanks for the input! This is also very helpful!
>
> All the best,
>
> Jan
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: donderdag 22 februari 2007 23:52
> To: yak-list@matronics.com
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
>
> Jan,
> Have been lurking and probably should have added something to this issue
> earlier. I did the plug conversion on my 50 also. Had a lot of
> interference/ "buzzing" on the radio. Could only get good signal (clear
> transmissions) from A/C close by or near the AF. Traced it down to the
> Russian radio cable and B/C connectors. I changed out to R 146 cable and
> new B&C connectors with marked improvement. I have a Becker VHF
> installed since I had pulled the Briz radio over a year ago. Had no
> problems until after I did the plug conversion. I had already changed
> out the antenna from the Russian so I knew it was not a West vs East
> technology issue.. or so I thought. I had continued to use the Ru radio
> cable with new B&C connectors.
> Once I changed the RU cable for R 146 all improved.
> Now I have a buzz and pop at the ends of transmissions. If I turn the
> automatic squelch off I have a continuous buzzing that is only present
> with the engine running. It is not associated with throttle changes. So
> guess I am now going to add a filter to the DC line into the radio to
> see if that fixes it.
> Doc
>
>
> > [Original Message]
> > From: Jan Mevis <jan.mevis@informavia.be>
> > To: <yak-list@matronics.com>
> > Date: 2/22/2007 3:53:21 PM
> > Subject: Yak-List: radio noise after installing plug conversion kit
> >
> >
> > Dear Mark,
> >
> > THANKS A LOT! Your advise helped me solve the problem : the
> > BNC-connector
> of
> > the antenna cable got disassembled! So I HEREBY CONFIRM : THE PLUG
> > CONVERSION KIT CABLES ARE NOT THE SOURCE OF THE RADIO NOISE IN MY
> PLANE!
> >
> > I was mislead because my radio showed the noise problem after I did
> > the
> plug
> > conversion, so it was logical to assume that there was a correlation.
> > For one reason or another the antenna cable could move around a bit.
> > And all things that are not well strapped in a Yak will cause problems
>
> > sooner or later. I did the test as you suggested, and bingo, problem
> diagnosed !
> >
> > Once again, thanks a lot!
> >
> >
> >
> > Jan Mevis
> > RA2005K
> > YK50
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
> Mark G
> > CIV Det Cherry Point, MALS-14 64E
> > Sent: dinsdag 20 februari 2007 22:48
> > To: yak-list@matronics.com
> > Subject: RE: Yak-List: White Paper on Russian Generator System
> >
> > --> Point,
> > MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > Jan,
> >
> > Let me repeat one thing if I may. If the noise to your radio goes
> > away completely when you disconnect the (almost) BNC connector on the
> > back of the radio that connects the antenna, then there is absolutely
> > no use in messing with the radios wiring what-so-over. Trust me on
> this one.
> > Radio noise can come in via a few different sources. The wires you
> > speak of, or the antenna, or both. If you disconnect the coax
> > connection to the radio, AT the radio, and all noise goes away
> > completely, then all noise is coming in from the antenna itself.
> > Noise filters will NEVER stop this type of noise. That is because the
>
> > radio is actually RECEIVING what it is SUPPOSED to be receiving. I.E.
> "RF
> > ENERGY".
> >
> > As for spark energy.... You mention the spark plug cables. I agree ...
> > More or less.... But don't forget that the spark plugs now being used
> > are much MUCH better than anything being used before. Leaps and
> > bounds better.
> >
> > If the shielding on the Tach Generator becomes completely
> > disconnected, the resultant noise can be so strong that it actually
> > causes DAMAGE to the receiver front end in a Balken-5 (sp) model radio
>
> > flying in a 52. I have actually seen that happen and have repaired
> the damage myself....
> > So believe me, it's true.
> >
> > Pulling the antenna connector off the radio will tell the story.
> >
> > Mark
> >
> > P.s. There is ONE very REMOTE possibility that can help if all noise
> > STOPS when you pull off the coax cable connector from the radio, and
> > that is called "common mode interference". In cases like that, noise
> > comes down the shield of the coax and gets into the radio THAT way.
> > This can be eliminated by using torroidal chokes on the exerior of the
>
> > coax close to the radio. They look like small donuts, and using the
> > right ones are important. Regardless, this still presumes that all
> > noise goes away when you disconnect the antenna coax from the radio.
> >
> > If that does as I expect it to do, and all noise goes away, then put
> > the coax back on the radio, and disconnect the connection from the
> > antenna itself. It the noise is still gone, it is NOT common mode
> > interference, and you either need to turn up the squelch, or eliminate
>
> > the noise at the source.... Not radio wiring.
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | radio noise after installing plug conversion kit |
Thanks for the advise Doc. I think I'll use the place taken by the Briz
radio mount so that I can leave the instrument panel as original as
possible.
Personally I do use the carburettor temperature indicator so that I have an
idea about the icing possibilities. Where I fly here in Europe, this icing
condition is present very often (high humidity, outside temperature between
0 and 5 degrees Celsius). One of my Yak 52 friends experienced it recently.
One thing is certain: I'll spend some money :-)
Jan
-----Original Message-----
From: owner-yak-list-server@matronics.com
[mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
Sent: maandag 26 februari 2007 23:10
Subject: RE: Yak-List: radio noise after installing plug conversion kit
Jan,
You can remove the Briz Radio and Mounts. Sacrafice you carb temp gauge and
use that 2 1/2 inch hole for your transponder (if you use a Becker unit).
Cut a second hole in you panel (2.5 inch) next to the carb temp hole and
mount a Becker 760 Com. Now if you want a GPS, you can use the old Briz
mount site to install the GPS there. That is the way I did it in my 50
atleast. Clean, out of the way and plenty of room left to do what ever I
need to do.
Besides, what are you going to do with carb temp. The 50 does not have carb
heat. Atleast mine does not. If you absolutely have to have OAT, then get
a Dynon D10. It has ten instruments in one. You get to get rid of the
inverter behind your seat and the RU ADI goes. The Dynon fits right in the
ADI slot. You will have to fabricate a square mount to fill the hole left
by the larger ADI. You now have a great HUD with mag heading across the top
of the HUD something you do not have with your current panel. If you do not
care for Dynon and want a similar instrument that has built in GPS and
moving map, then there is also Blue Mountain. I do not have any experience
with that unit and I have heard both good and bad about it.
Just a few thoughs on how to spend a few Euros.
Doc
> [Original Message]
> From: Jan Mevis <jan.mevis@informavia.be>
> To: <yak-list@matronics.com>
> Date: 2/26/2007 2:18:30 PM
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
>
> Thanks Mark!
>
> I've ordered some good antenna cable (double shielded according to the
> specs) and a set of quality BNC connectors. And then I'll follow your
> advise: either the female connector soldered on the radio, or adapting a
> male connector. I also consider replacing the antenna, but only after
> testing the actual system with the new antenna cable + connectors. In the
> future I might replace the Briz by a western comm/GPS device.
> We've also another bureaucratic burden here in Europe : the transponder
> issue. Sooner or later we will be forced to install this (even the S type
> I'm afraid). So I'm thinking about making a sort of console in front of
the
> cockpit.
>
> Best regards,
>
> Jan
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
Mark G
> CIV Det Cherry Point, MALS-14 64E
> Sent: maandag 26 februari 2007 18:35
> To: yak-list@matronics.com
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
> MALS-14 64E" <mark.bitterlich@navy.mil>
>
> Jan, the BNC connection on the back of the Russian radio is NOT really a
> BNC connector. It is not a STANDARD BNC connector is what I SHOULD say,
> because it is in fact a bayonet type as you already clearly know. In
> order to get a standard BNC type to fit properly, you need to use a
> jewelers file and where the detect is on the connector that is on the
> coax, make the detent go in more deeply, then file off the ridge created
> when you do that. The result is that the connector will not take a pair
> of pliers to get on and off.
>
> A better solution would be to simply solder in a standard female BNC
> bulkhead connector to the radio itself. I would replace the coax with
> RG-142B/U Teflon Dielectric, Double Shielded coax. If you have
> difficulty in finding all this, I can send you a kit... You pay
> shipping! :)
>
> Mark
>
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Jan Mevis
> Sent: Friday, February 23, 2007 2:10
> To: yak-list@matronics.com
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
>
> Doc,
>
> It is as if you've got to change it all : either the whole Russian radio
> system, or a complete western system. Maybe a problem with impedance
> changes etc? I had to modify the microphone connections so that I could
> use a Dave Clark headset (the Russian push-to-talk system did not put
> one connector of the microphone to ground when speaking).
>
> My Briz (which I put in place for a Ziabrik) works reasonably well. But
> I had the trouble putting a BNC connector on the Russian antenna cable
> (the ziabrik needed a very small connector, comparable to what is used
> in WIFI equipment). Unfortunately until now I could not find a connector
> that really fits. That's also the reason why the connector got damaged
> on my plane after
> 5 months of intensive use. It's an absolute coincidence that this
> happened just after changing the plug cables.
>
> But I do also only have clear transmissions when I'm close by or near
> other radio stations. So I 'd better change the whole antenna system, I
> fear.
>
> Thanks for the input! This is also very helpful!
>
> All the best,
>
> Jan
>
> -----Original Message-----
> From: owner-yak-list-server@matronics.com
> [mailto:owner-yak-list-server@matronics.com] On Behalf Of Roger Kemp
> Sent: donderdag 22 februari 2007 23:52
> To: yak-list@matronics.com
> Subject: RE: Yak-List: radio noise after installing plug conversion kit
>
>
> Jan,
> Have been lurking and probably should have added something to this issue
> earlier. I did the plug conversion on my 50 also. Had a lot of
> interference/ "buzzing" on the radio. Could only get good signal (clear
> transmissions) from A/C close by or near the AF. Traced it down to the
> Russian radio cable and B/C connectors. I changed out to R 146 cable and
> new B&C connectors with marked improvement. I have a Becker VHF
> installed since I had pulled the Briz radio over a year ago. Had no
> problems until after I did the plug conversion. I had already changed
> out the antenna from the Russian so I knew it was not a West vs East
> technology issue.. or so I thought. I had continued to use the Ru radio
> cable with new B&C connectors.
> Once I changed the RU cable for R 146 all improved.
> Now I have a buzz and pop at the ends of transmissions. If I turn the
> automatic squelch off I have a continuous buzzing that is only present
> with the engine running. It is not associated with throttle changes. So
> guess I am now going to add a filter to the DC line into the radio to
> see if that fixes it.
> Doc
>
>
> > [Original Message]
> > From: Jan Mevis <jan.mevis@informavia.be>
> > To: <yak-list@matronics.com>
> > Date: 2/22/2007 3:53:21 PM
> > Subject: Yak-List: radio noise after installing plug conversion kit
> >
> >
> > Dear Mark,
> >
> > THANKS A LOT! Your advise helped me solve the problem : the
> > BNC-connector
> of
> > the antenna cable got disassembled! So I HEREBY CONFIRM : THE PLUG
> > CONVERSION KIT CABLES ARE NOT THE SOURCE OF THE RADIO NOISE IN MY
> PLANE!
> >
> > I was mislead because my radio showed the noise problem after I did
> > the
> plug
> > conversion, so it was logical to assume that there was a correlation.
> > For one reason or another the antenna cable could move around a bit.
> > And all things that are not well strapped in a Yak will cause problems
>
> > sooner or later. I did the test as you suggested, and bingo, problem
> diagnosed !
> >
> > Once again, thanks a lot!
> >
> >
> >
> > Jan Mevis
> > RA2005K
> > YK50
> >
> > -----Original Message-----
> > From: owner-yak-list-server@matronics.com
> > [mailto:owner-yak-list-server@matronics.com] On Behalf Of Bitterlich,
> Mark G
> > CIV Det Cherry Point, MALS-14 64E
> > Sent: dinsdag 20 februari 2007 22:48
> > To: yak-list@matronics.com
> > Subject: RE: Yak-List: White Paper on Russian Generator System
> >
> > --> Point,
> > MALS-14 64E" <mark.bitterlich@navy.mil>
> >
> > Jan,
> >
> > Let me repeat one thing if I may. If the noise to your radio goes
> > away completely when you disconnect the (almost) BNC connector on the
> > back of the radio that connects the antenna, then there is absolutely
> > no use in messing with the radios wiring what-so-over. Trust me on
> this one.
> > Radio noise can come in via a few different sources. The wires you
> > speak of, or the antenna, or both. If you disconnect the coax
> > connection to the radio, AT the radio, and all noise goes away
> > completely, then all noise is coming in from the antenna itself.
> > Noise filters will NEVER stop this type of noise. That is because the
>
> > radio is actually RECEIVING what it is SUPPOSED to be receiving. I.E.
> "RF
> > ENERGY".
> >
> > As for spark energy.... You mention the spark plug cables. I agree ...
> > More or less.... But don't forget that the spark plugs now being used
> > are much MUCH better than anything being used before. Leaps and
> > bounds better.
> >
> > If the shielding on the Tach Generator becomes completely
> > disconnected, the resultant noise can be so strong that it actually
> > causes DAMAGE to the receiver front end in a Balken-5 (sp) model radio
>
> > flying in a 52. I have actually seen that happen and have repaired
> the damage myself....
> > So believe me, it's true.
> >
> > Pulling the antenna connector off the radio will tell the story.
> >
> > Mark
> >
> > P.s. There is ONE very REMOTE possibility that can help if all noise
> > STOPS when you pull off the coax cable connector from the radio, and
> > that is called "common mode interference". In cases like that, noise
> > comes down the shield of the coax and gets into the radio THAT way.
> > This can be eliminated by using torroidal chokes on the exerior of the
>
> > coax close to the radio. They look like small donuts, and using the
> > right ones are important. Regardless, this still presumes that all
> > noise goes away when you disconnect the antenna coax from the radio.
> >
> > If that does as I expect it to do, and all noise goes away, then put
> > the coax back on the radio, and disconnect the connection from the
> > antenna itself. It the noise is still gone, it is NOT common mode
> > interference, and you either need to turn up the squelch, or eliminate
>
> > the noise at the source.... Not radio wiring.
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|