ke4zdj
Newbie
Im looking at possibly putting a 2 meter antenna on top of the mountain peak behind my house. This will require about 1000' of line. Any suggestions on what to use? Thanks
Mountain top 2 mtr. antenna
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Is there power at the top?
KG4NEL
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Build the shack on the top of the mountain 
kayn1n32008
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Sinclair Radio Labs 210-C4 or the equivilant BlueWave antenna.
Sinclair Radio Labs 210-C4 or the equivilant BlueWave antenna.
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prcguy
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Where have I seen this thread before? Hmmm...
kayn1n32008
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Well made. (will out last ANY fibre glass vertical)
DC grounded.
Fairly omni pattern depending on configuration. (210-A4 has external cabling and clamps so the spacing can be changed)
Stackable.
VERY broadband with gain. (6Dbd for a 4bay)
Also Resonant from about 400-450MHz,(verified with a Anritsu site master) probably wider, but only interested in 430-450MHz. This allows us to diplex a link radio or a Uhf repeater on a single feedline.
All welded, and internal cabling. (210-A4 is external cabling) It WILL survive THE most extreme winter conditions.
This antenna and its little brother the 210-C2 ARE the more popular repeater/base used where I live, I have seen deformed aluminium verticals and the mounts of former fibre glass verticals but the C-4 stays true.
Myself and some others are installing Vhf repeaters with diplexed Uhf links into sites that have 30+ year old 210-A2s leftover from a 20+year defunct radio system. We have yet to see an antenna that has failed, only damaged hard line.
prcguy said:
Well made. (will out last ANY fibre glass vertical)
DC grounded.
Fairly omni pattern depending on configuration. (210-A4 has external cabling and clamps so the spacing can be changed)
Stackable.
VERY broadband with gain. (6Dbd for a 4bay)
Also Resonant from about 400-450MHz,(verified with a Anritsu site master) probably wider, but only interested in 430-450MHz. This allows us to diplex a link radio or a Uhf repeater on a single feedline.
All welded, and internal cabling. (210-A4 is external cabling) It WILL survive THE most extreme winter conditions.
This antenna and its little brother the 210-C2 ARE the more popular repeater/base used where I live, I have seen deformed aluminium verticals and the mounts of former fibre glass verticals but the C-4 stays true.
Myself and some others are installing Vhf repeaters with diplexed Uhf links into sites that have 30+ year old 210-A2s leftover from a 20+year defunct radio system. We have yet to see an antenna that has failed, only damaged hard line.
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prcguy
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I agree the Sinclair 210 series is a well made antenna but its only 3dBD gain omni and the OP is looking at a 1000ft run of feedline loss to make up. He also only needs 2m so the broad band coverage is not necessary.
In the professional antenna circles the exposed dipole array is King and the DB Products DB-224 or even the DB-304 (both 6dBD omni) are considered the King of the hill in dipole arrays.
prcguy
In the professional antenna circles the exposed dipole array is King and the DB Products DB-224 or even the DB-304 (both 6dBD omni) are considered the King of the hill in dipole arrays.
prcguy
As given, the problem with the scenario is that 1000' of feed line. Almost any alternative would be preferable to that. No matter the gain of the antenna, the power at the radio end will be a bit impractical. That says nothing about the set-up's 'ears'!
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Token
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Sure, 1000' of feedline sounds bad, but really it is not all that tough. All it takes is money Something like LDF7-50A or FXL-1873 would do it with around 2.5'ish dB of loss. Connectors are only $160 or so a piece and the cable would run between $5000 and $14000 depending on which cable you want.
Maybe a small solar powered remote base on the hilltop might be better
T!
Something like LDF7-50A or FXL-1873 would do it with around 2.5'ish dB of loss. Connectors are only $160 or so a piece and the cable would run between $5000 and $14000 depending on which cable you want.Maybe a small solar powered remote base on the hilltop might be better
T!
List price for 1000' of LDF7-50 is about $19,400. And that's before you have even begun to protect it by either burying it in conduit or putting it on a pole with messenger cables. Even if you paid the cut rate prices that Token suggested, the cost of installation will be a significant and unavoidable issue.
And then one day, some idiot will discover it and steal it for the copper.
It would be cheaper to buy a shed, and put an equipment shelter at the top of the hill and find some way to truck the signals down to your shack.
And then one day, some idiot will discover it and steal it for the copper.
It would be cheaper to buy a shed, and put an equipment shelter at the top of the hill and find some way to truck the signals down to your shack.
mike_gain
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I would consider Plan B.
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