| Author |
Message |
    
Crackshot
Intermediate Member
Username: Crackshot
Post Number: 194
Registered: 10-2005
| | Posted on Tuesday, October 10, 2006 - 9:35 am: | 
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I have a Grundig YB-400 abd want to use my long wire outside for my external antenna.
I know it takes a 1/8 inch mono plug to do this, but only have one wire coming into house.
If I solder a plug to the connector, what would I solder to the other terminal on connector? A ground or a shorter wire similar to long wire outside? Anyone try this? |
Hollowpoint445
Senior Member
Username: Hollowpoint445
Post Number: 1384
Registered: 6-2004
| | Posted on Tuesday, October 10, 2006 - 3:56 pm: |
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Yes, ideally a ground wire would be soldered to the other conductor - which I think would be the ring or shield. The owner's manual probably gives information about connection of an external antenna using the antenna jack.
A serious problem with using a long wire with a portable is overload.
I'm not familiar with the YB-400, but unless it has an RF gain control, I wouldn't consider using this type of antenna.
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Bruce
Senior Member
Username: Bruce
Post Number: 4107
Registered: 9-2003
| | Posted on Tuesday, October 10, 2006 - 6:53 pm: |
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crackshot i have a portable grundig too and i find adding a 80-10 antenna tuner to that wire helps keep out unwanted signals my wire is about 50 foot long. |
Crackshot
Intermediate Member
Username: Crackshot
Post Number: 196
Registered: 10-2005
| | Posted on Tuesday, October 10, 2006 - 9:38 pm: |
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My wire is about 20 feet long.
I might get plug and try it out and report back! |
Kid_vicious
Senior Member
Username: Kid_vicious
Post Number: 2147
Registered: 9-2004
| | Posted on Wednesday, October 11, 2006 - 12:24 am: |
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i use an inverted L antenna that is about 70 feet long on my sangean ATS818, which is comperable to the yacht boy.
the problem here was broadcast band (AM radio) interference. when using the outdoor antenna they would overload the receiver rendering anything below 11 mhz unusable.
my solution was to build a BCB filter using series caps and parallel inductors mounted in a small aluminum box with SO-239's on either end.
i made a cable out of RG58 that had a PL259 on one end and an 1/8" mono plug on the other.
the tip is center conductor, and the shaft is ground braid.
i use a length of RG8 from the filter to the antenna. the center conductor is soldered to the vertical portion of the inverted L about 6" off the ground, and the braid goes to a ground rod right below the antenna.
this setup really works well and i can hear many distant ham stations, a few pirates, and can listen all the way down to 2mhz with minimal interference.
i found the plans to build the filter online.
hope this gives you some ideas,
matt |
Tech833
Moderator
Username: Tech833
Post Number: 1487
Registered: 8-2002
| | Posted on Wednesday, October 11, 2006 - 9:39 am: |
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I use a YB-400 when camping. Excellent radio!
When camping, I normally carry a roll-up wire antenna with a 1/8 plug on the end. Teh wire is soldered to the center conductor and the ground is unconnected. The wire is about 40 feet long. Massive DX!!
As far as AM BCB overloading, that is tough since the internal ferrite is always connected for AM reception. The attenuator is the only salvation I have found. KV's filter is a good idea too, but won't help with the internal antenna part. |
