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lynncole(at)foxvalley.net
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 Posted: Sat Oct 27, 2012 9:06 am Post subject: Hand-Held NAV-COM |
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I have an old hand-held NAV-COM marketed by Satellite Technology Services, Inc. of St. Louis, MO. It works well on 720 channels of COM and 200 channels of NAV, but the center pin of the external power-supply jack is broken. It has a removable battery pack that takes 6 AA batteries. The instruction manual talks about a 7.2-volt NiCad battery pack, but it works well using 6 alkaline batteries (9 volts). However, it uses up the batteries quite rapidly, and I would like to find a way of attaching an external power supply.
I checked the web and found 3 references to the company, a BBB report, a lawsuit, and a patent assignment. Apparently they don't have a web site. I don't know whether they still support the radio.
My options seem to be:
1. Replace the power-supply jack. It seems to be a special jack that is soldered into the main board. I have not been able to find the correct jack from any of the usual electronics suppliers.
2. Remove the jack, solder a pigtail to the board, and connect the pigtail to a new jack that would dangle from the case.
3. Modify the battery pack, possibly by making a pair of dummy batteries that would connect to an external power jack. This is attractive because the instruction manual says to disconnect the battery pack (to avoid damaging it) when the external power supply is used.
Whichever option I choose I will need two power supplies, one to connect to connect to the cigarette-lighter in the airplane, and the other to connect to the 120-V AC power. Any suggestions for these?
-----
Lynn Cole
LynnCole(at)foxvalley.net (LynnCole(at)foxvalley.net)
[quote][b]
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nuckolls.bob(at)aeroelect
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| Posted: Sun Oct 28, 2012 11:24 am Post subject: Hand-Held NAV-COM |
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At 12:03 PM 10/27/2012, you wrote:
| Quote: | I have an old hand-held NAV-COM marketed by Satellite Technology Services, Inc. of St. Louis, MO. It works well on 720 channels of COM and 200 channels of NAV, but the center pin of the external power-supply jack is broken. It has a removable battery pack that takes 6 AA batteries. The instruction manual talks about a 7.2-volt NiCad battery pack, but it works well using 6 alkaline batteries (9 volts). However, it uses up the batteries quite rapidly, and I would like to find a way of attaching an external power supply.
I checked the web and found 3 references to the company, a BBB report, a lawsuit, and a patent assignment. Apparently they don't have a web site. I don't know whether they still support the radio.
My options seem to be:
1. Replace the power-supply jack. It seems to be a special jack that is soldered into the main board. I have not been able to find the correct jack from any of the usual electronics suppliers.
2. Remove the jack, solder a pigtail to the board, and connect the pigtail to a new jack that would dangle from the case.
3. Modify the battery pack, possibly by making a pair of dummy batteries that would connect to an external power jack. This is attractive because the instruction manual says to disconnect the battery pack (to avoid damaging it) when the external power supply is used.
Whichever option I choose I will need two power supplies, one to connect to connect to the cigarette-lighter in the airplane, and the other to connect to the 120-V AC power. Any suggestions for these? |
Search on STS "AV-7600" and you'll get more hits.
A friend of mine in Wichita works on hand-helds and
might be able to repair/replace the existing jack.
If you go the pigtail route, you can power up from
a/c mains with a power supply like this:
http://tinyurl.com/963xg74
there are many similar models at very reasonable prices
on eBay.
You probably don't want to apply a 14-15 volt bus
directly to this radio. Some sort of boost-buck
dc/dc converter that will give you a constant 12v
out for a range of inputs that goes both above and
below the output setting.
http://tinyurl.com/9dqt39k
Bob . . .
Bob . . . [quote][b]
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
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LynnCole(at)foxvalley.net
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| Posted: Mon Oct 29, 2012 8:08 am Post subject: Hand-Held NAV-COM |
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Thanks!
-----
Lynn Cole
LynnCole(at)foxvalley.net (LynnCole(at)foxvalley.net)
On Oct 28, 2012, at 2:22 PM, Robert L. Nuckolls, III wrote:
[quote] At 12:03 PM 10/27/2012, you wrote:
| Quote: | I have an old hand-held NAV-COM marketed by Satellite Technology Services, Inc. of St. Louis, MO. It works well on 720 channels of COM and 200 channels of NAV, but the center pin of the external power-supply jack is broken. It has a removable battery pack that takes 6 AA batteries. The instruction manual talks about a 7.2-volt NiCad battery pack, but it works well using 6 alkaline batteries (9 volts). However, it uses up the batteries quite rapidly, and I would like to find a way of attaching an external power supply.
I checked the web and found 3 references to the company, a BBB report, a lawsuit, and a patent assignment. Apparently they don't have a web site. I don't know whether they still support the radio.
My options seem to be:
1. Replace the power-supply jack. It seems to be a special jack that is soldered into the main board. I have not been able to find the correct jack from any of the usual electronics suppliers.
2. Remove the jack, solder a pigtail to the board, and connect the pigtail to a new jack that would dangle from the case.
3. Modify the battery pack, possibly by making a pair of dummy batteries that would connect to an external power jack. This is attractive because the instruction manual says to disconnect the battery pack (to avoid damaging it) when the external power supply is used.
Whichever option I choose I will need two power supplies, one to connect to connect to the cigarette-lighter in the airplane, and the other to connect to the 120-V AC power. Any suggestions for these? |
Search on STS "AV-7600" and you'll get more hits.
A friend of mine in Wichita works on hand-helds and
might be able to repair/replace the existing jack.
If you go the pigtail route, you can power up from
a/c mains with a power supply like this:
http://tinyurl.com/963xg74
there are many similar models at very reasonable prices
on eBay.
You probably don't want to apply a 14-15 volt bus
directly to this radio. Some sort of boost-buck
dc/dc converter that will give you a constant 12v
out for a range of inputs that goes both above and
below the output setting.
http://tinyurl.com/9dqt39k
Bob . . .
Bob . . .
[b]
| | - The Matronics AeroElectric-List Email Forum - | | | Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:
http://www.matronics.com/Navigator?AeroElectric-List |
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