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wdaniell(at)etb.net.co
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 Posted: Sun Apr 15, 2007 8:35 am Post subject: YAESU Aviator Pilot II |
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Has anyone “plumbed in” opne of these portables. I think I saw one attached to a panel but I can’t remember where.
Apparently it is not as simple as just connecting the headset and an antenna extension. You get a strong whine through the headset. I am told by Yaesu helpdesk that you need a ferrite choke. Not wishing to appear ignorant…but what the hell is a ferrite choke?
Will
[quote][b]
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pete(at)lawless.info
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| Posted: Sun Apr 15, 2007 8:54 am Post subject: YAESU Aviator Pilot II |
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Hi Will
A ferrite choke is a coil of wire wound onto a ferrite rod. It has the effect of passing DC ok but offering a high resistance to AC. If you put it in the supply line to whatever an Aviator Pilot is it stops the stray AC getting through and kills the whine.
Regards
Pete
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wdaniell(at)etb.net.co
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| Posted: Sun Apr 15, 2007 4:53 pm Post subject: YAESU Aviator Pilot II |
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Thanks Pete
The radio is a self contained handheld. It has an adapter for use with headphones. It works fine without headset but when you use the adapter you get the whine. The yaesu email help desk said use this ferrite choke thing (I now know what they mean) but not where to put it…. I am assuming that the ferrite choke would go on the headset cable?
Is it the same thing as you get round laptop power cables?
Will
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Pete Lawless
Sent: Sunday, April 15, 2007 11:52
To: europa-list(at)matronics.com
Subject: RE: YAESU Aviator Pilot II
Hi Will
A ferrite choke is a coil of wire wound onto a ferrite rod. It has the effect of passing DC ok but offering a high resistance to AC. If you put it in the supply line to whatever an Aviator Pilot is it stops the stray AC getting through and kills the whine.
Regards
Pete
--
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pete(at)lawless.info
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| Posted: Sun Apr 15, 2007 10:39 pm Post subject: YAESU Aviator Pilot II |
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Morning Will
There seem to be two sorts one which is a component and is actually connected in series with the wire and another that simply wraps around the outside of the cable those are the bumps on the PC cables (I think). I would ask Yaesu for more information (make and model number and where in the set up it goes) I would guess round the headset cable to cut out the stray hum. Radios are strange things, the one that has always worked most reliably for me has been my Icom handheld (Now 15 years old) with or without headset plugged in.
Good luck.
Pete
If it whines when away from the aeroplane you could take to whole setup to say Radio Shack and try the fix in the shop.
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Kurt.Schumacher(at)schumi
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| Posted: Sun Apr 15, 2007 11:48 pm Post subject: YAESU Aviator Pilot II |
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Hi Will,
| Quote: | Is it the same thing as you get round laptop power cables?
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Yes – but you need to wrap the cable about 3..6 or more times through the toroid type as seen on notebook power supplies or analog computer monitor (VGA) cables to create a good RF resistor
Key cause is (among many others) a poor grounding. You only speak of the antenna extension and the headset. Even if you do not intend to power or charge the Yaesu from the plane’s DC, we suggest making a good mass connection between the enclosure (mass on the DC connector) and your aircraft grounding.
Worth a try is grounding the headset connector ground to the aircraft ground, too.
In case you will wire-up a power supply to the Yaesu, please ensure to install a voltage and/or current limiter as provided with the matching car adapter by the supplier.
Hope this helps you fixing your installation.
Regards,
-Kurt.
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Pete Lawless
Sent: Monday, April 16, 2007 8:35 AM
To: europa-list(at)matronics.com
Subject: RE: YAESU Aviator Pilot II
Morning Will
There seem to be two sorts one which is a component and is actually connected in series with the wire and another that simply wraps around the outside of the cable those are the bumps on the PC cables (I think). I would ask Yaesu for more information (make and model number and where in the set up it goes) I would guess round the headset cable to cut out the stray hum. Radios are strange things, the one that has always worked most reliably for me has been my Icom handheld (Now 15 years old) with or without headset plugged in.
Good luck.
Pete
If it whines when away from the aeroplane you could take to whole setup to say Radio Shack and try the fix in the shop.
-----Original Message-----
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of William Daniell
Sent: 16 April 2007 01:50
To: europa-list(at)matronics.com
Subject: RE: YAESU Aviator Pilot II
Thanks Pete
The radio is a self contained handheld. It has an adapter for use with headphones. It works fine without headset but when you use the adapter you get the whine. The yaesu email help desk said use this ferrite choke thing (I now know what they mean) but not where to put it…. I am assuming that the ferrite choke would go on the headset cable?
Is it the same thing as you get round laptop power cables?
Will
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Pete Lawless
Sent: Sunday, April 15, 2007 11:52
To: europa-list(at)matronics.com
Subject: RE: YAESU Aviator Pilot II
Hi Will
A ferrite choke is a coil of wire wound onto a ferrite rod. It has the effect of passing DC ok but offering a high resistance to AC. If you put it in the supply line to whatever an Aviator Pilot is it stops the stray AC getting through and kills the whine.
Regards
Pete
-----Original Message-----
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of William Daniell
Sent: 15 April 2007 17:32
To: europa-list(at)matronics.com
Subject: YAESU Aviator Pilot II
Has anyone “plumbed in” opne of these portables. I think I saw one attached to a panel but I can’t remember where.
Apparently it is not as simple as just connecting the headset and an antenna extension. You get a strong whine through the headset. I am told by Yaesu helpdesk that you need a ferrite choke. Not wishing to appear ignorant…but what the hell is a ferrite choke?
Will
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[quote][b]
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wdaniell(at)etb.net.co
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| Posted: Mon Apr 16, 2007 5:29 am Post subject: YAESU Aviator Pilot II |
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Pete,
Thanks for this.
I think that I will try the Radio shack option.
The whine appears when I transmit in or out of the aircraft. The radio works fine without the headset. (“You’d think” that if the manufacturer supplies an adapter then it is designed for use with headset….). The radio works fine with only the Rx through the headset and Tx from the internal radio mic.
I have done all the right things like turn off the radio mike to avoid feed back and tried with a variety of headsets – I even had to read the manual which is something I am against doing on principle.
Will
From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of Pete Lawless
Sent: Monday, April 16, 2007 01:35
To: europa-list(at)matronics.com
Subject: RE: YAESU Aviator Pilot II
Morning Will
There seem to be two sorts one which is a component and is actually connected in series with the wire and another that simply wraps around the outside of the cable those are the bumps on the PC cables (I think). I would ask Yaesu for more information (make and model number and where in the set up it goes) I would guess round the headset cable to cut out the stray hum. Radios are strange things, the one that has always worked most reliably for me has been my Icom handheld (Now 15 years old) with or without headset plugged in.
Good luck.
Pete
If it whines when away from the aeroplane you could take to whole setup to say Radio Shack and try the fix in the shop.
--
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