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Old September 9th 04, 06:19 PM
PowerHouse Communications
 
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I have one of these, and while I'm not expert, it does a wonderful job for
me. I've never used a discone, so I have no way to compare the two...
However, you can buy this antenna from other sources for HALF (or a little
more than half) the price they want at the site that was originally linked
to...

http://www.starkelectronic.com/acantena.htm#ST2
http://www.valcoelectronics.com/scanner/scanner.htm
http://www.radiooutfitter.com/store/ST2.html
http://www.warrenelectronics.com/antennas/scanner_1.htm
http://www.universal-radio.com/catal...ants/2732.html



"BDK" wrote in message
...
In article ers.com,
says...
I need some help choosing an antenna for my
base station police scanner.
any suggestion (pros or cons) would be appreciated



This is what you want. Will blow away about any other omni antenna out
there. Light years ahead of a discone.

http://users.cis.net/kingpop/Scanner/Scantenna.htm


BDK



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Old September 9th 04, 08:33 PM
Jim Hackett
 
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Too bad the ST-2 omits the milair freqs :~( I almost ordered one till I
read a DETAILED frequency coverage (30-50, 148-174, 440-470, 470-512,
800-912 MHz) Most stores list it as 30-1300 which isn't quite the same...



"PowerHouse Communications" wrote in message
...
I have one of these, and while I'm not expert, it does a wonderful job for
me. I've never used a discone, so I have no way to compare the two...
However, you can buy this antenna from other sources for HALF (or a little
more than half) the price they want at the site that was originally linked
to...

http://www.starkelectronic.com/acantena.htm#ST2
http://www.valcoelectronics.com/scanner/scanner.htm
http://www.radiooutfitter.com/store/ST2.html
http://www.warrenelectronics.com/antennas/scanner_1.htm
http://www.universal-radio.com/catal...ants/2732.html



"BDK" wrote in message
...
In article ers.com,
says...
I need some help choosing an antenna for my
base station police scanner.
any suggestion (pros or cons) would be appreciated



This is what you want. Will blow away about any other omni antenna out
there. Light years ahead of a discone.

http://users.cis.net/kingpop/Scanner/Scantenna.htm


BDK





  #3   Report Post  
Old September 10th 04, 12:52 AM
Jeff
 
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This is what you want. Will blow away about any other omni antenna out
there. Light years ahead of a discone.

http://users.cis.net/kingpop/Scanner/Scantenna.htm


BDK

-------------------------------------------------------------------------------

Not quite light years ahead of a discone. Last year I put up a discone
on one side of my house and a ST 2 on the other side, fed them both with
RG 6U double shielded. Had them feeding a Yaesu VR 5000 alternately.
The discone was the one that had the vertical element on top.
On 30-50 I could tell no difference between the 2. But I could use
the discone on 6 meter fm with a 1.9-1 swr. on 148-170 they appeared
to be the same. On some freqs the ST 2 was a tad, and I mean a tad
better. ON other signals in VHF (i.e.144mhz ssb amateur) the discone
picked up distant ssb chatter while the ST 2 picked up nothing. On the
discone I can use on 2 mtr. fm with almost a flat swr. On 440-470 they
apeared to be the same for all intent. Although I can use the discone on
440 fm with a 1.5-1 or so swr. On the 470-512 area there is nothing to
listen to around here so thats a wash. But on 800-912mhz the discone
worked quite well and is somewhat resonant there, while the ST 2
seemed to be about deaf in this area. If you live in an area that gets
freezing rain and wind, even the new improved ST 2 will not last. Its
too fragile. I have never had a discone come down. After my tests I took
down the ST 2 and sold it, and still have up the discone. There is no
substitute for being resonant at various points on a freq plot. The ST 2
basically fakes the radio as far as impededance with the 300 ohm
transformer. It hardly blows the discone out of the water, like I hear so
often. Advertising hype.


Jeff


  #4   Report Post  
Old September 10th 04, 08:31 AM
r392
 
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Default

However it is half the price and includes the feed line and shipping.
It seems by the reports for monitoring the
basics its a appropriate antenna
Doug
"Jeff" wrote in message
news:U060d.158329$Fg5.72937@attbi_s53...


This is what you want. Will blow away about any other omni antenna

out
there. Light years ahead of a discone.

http://users.cis.net/kingpop/Scanner/Scantenna.htm


BDK

--------------------------------------------------------------------------

-----

Not quite light years ahead of a discone. Last year I put up a

discone
on one side of my house and a ST 2 on the other side, fed them both with
RG 6U double shielded. Had them feeding a Yaesu VR 5000 alternately.
The discone was the one that had the vertical element on top.
On 30-50 I could tell no difference between the 2. But I could use
the discone on 6 meter fm with a 1.9-1 swr. on 148-170 they appeared
to be the same. On some freqs the ST 2 was a tad, and I mean a tad
better. ON other signals in VHF (i.e.144mhz ssb amateur) the discone
picked up distant ssb chatter while the ST 2 picked up nothing. On the
discone I can use on 2 mtr. fm with almost a flat swr. On 440-470 they
apeared to be the same for all intent. Although I can use the discone on
440 fm with a 1.5-1 or so swr. On the 470-512 area there is nothing to
listen to around here so thats a wash. But on 800-912mhz the discone
worked quite well and is somewhat resonant there, while the ST 2
seemed to be about deaf in this area. If you live in an area that gets
freezing rain and wind, even the new improved ST 2 will not last. Its
too fragile. I have never had a discone come down. After my tests I took
down the ST 2 and sold it, and still have up the discone. There is no
substitute for being resonant at various points on a freq plot. The ST 2
basically fakes the radio as far as impededance with the 300 ohm
transformer. It hardly blows the discone out of the water, like I hear so
often. Advertising hype.


Jeff




  #5   Report Post  
Old September 10th 04, 06:07 PM
BDK
 
Posts: n/a
Default

In article U060d.158329$Fg5.72937@attbi_s53, "Jeff" oldog@(nospam)
mchsi.com says...


This is what you want. Will blow away about any other omni antenna out
there. Light years ahead of a discone.

http://users.cis.net/kingpop/Scanner/Scantenna.htm


BDK

-------------------------------------------------------------------------------

Not quite light years ahead of a discone. Last year I put up a discone
on one side of my house and a ST 2 on the other side, fed them both with
RG 6U double shielded. Had them feeding a Yaesu VR 5000 alternately.
The discone was the one that had the vertical element on top.
On 30-50 I could tell no difference between the 2. But I could use
the discone on 6 meter fm with a 1.9-1 swr. on 148-170 they appeared
to be the same. On some freqs the ST 2 was a tad, and I mean a tad
better. ON other signals in VHF (i.e.144mhz ssb amateur) the discone
picked up distant ssb chatter while the ST 2 picked up nothing. On the
discone I can use on 2 mtr. fm with almost a flat swr. On 440-470 they
apeared to be the same for all intent. Although I can use the discone on
440 fm with a 1.5-1 or so swr. On the 470-512 area there is nothing to
listen to around here so thats a wash. But on 800-912mhz the discone
worked quite well and is somewhat resonant there, while the ST 2
seemed to be about deaf in this area. If you live in an area that gets
freezing rain and wind, even the new improved ST 2 will not last. Its
too fragile. I have never had a discone come down. After my tests I took
down the ST 2 and sold it, and still have up the discone. There is no
substitute for being resonant at various points on a freq plot. The ST 2
basically fakes the radio as far as impededance with the 300 ohm
transformer. It hardly blows the discone out of the water, like I hear so
often. Advertising hype.


Jeff




I havent seen the heavier duty one in person, so I can't say for sure
how strong it is, but a discone really truly blows as an antenna. A
ringo ranger 2 works pretty well, better than any of the discones I have
had on most freqs. I wonder if the Yaesu was hearing better on the
discone because it was desensitizing. I had one here for a while, and it
was a disaster, intermod and hash all over, and so I sold it to a friend
who lives 20 miles from any really big town. Works good out there..

Right now I have two Scantennas in the attic, along with a discone and a
home brew ground plane cut for 161 Mhz (trains), The discone is in the
"sweet spot" in the attic (it was there first), and until I bought the
first Scantenna, I thought it was ok. I even replaced the original coax
on the discone with 9913 and it was a tiny bit better on 800, but wasn't
anywhere else. I have the discone connected to my BC9000, as it's better
on that antenna, since it seems most prone to losing it's cool due to a
nearby TV station's huge signal. The Pro 2005 and 2006 on the scantennas
will both easily beat the 9000 in every way but scan speed, on any
antenna.

If I had my choice as one single antenna to use, I would probably pick
the home built ground plane (I can build one that will last forever),
with the ringo a close second. The scantenna's next only due to it's
fragility. I may build a HD one myself one of these days..

As far as impedance goes, it's pretty meaingless for receivers, loss is
much more of a problem.

I need to find a climber to change the coax on my ringo, and put up
another discone as a backup to it, for 2M/440. I don't want to get
ripped off for 300 bucks like I did 10 years ago, 25 of it was for
coming over the border into my town. That 150 yards cost 4 times as much
as the ground plane I made the day before cost me!

BDK


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Old September 11th 04, 12:36 AM
Jeff
 
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Default


"BDK" wrote in
message -------------------------------------------------------------------------------




If I had my choice as one single antenna to use, I would probably pick
the home built ground plane (I can build one that will last forever),
with the ringo a close second. The scantenna's next only due to it's
fragility. I may build a HD one myself one of these days..

As far as impedance goes, it's pretty meaingless for receivers, loss is
much more of a problem.

I need to find a climber to change the coax on my ringo, and put up
another discone as a backup to it, for 2M/440. I don't want to get
ripped off for 300 bucks like I did 10 years ago, 25 of it was for
coming over the border into my town. That 150 yards cost 4 times as much
as the ground plane I made the day before cost me!

-------------------------------------------------------------------------------

I suggest you go back and study some rf transmission basics.
Impedance is important on recieve if you want to get maximum signal
transfer. In an impedance matched circuit you will get maximum
flow of rf, than in a non resonant circuit. This applies to recieve as
well as transmit. Why do you think they use that little 1.95$ 300ohm
to 50ohm transformer on the scantenna? It isnt there for looks. And no
my VR 5k wasnt suffering from intermod or overload, had an AM
filter, an FM filter, and a paging freq. filter on it and it works quite
well. If you build your own ground plane, I bet you will make the
elements to come out to 1/4 wave on the freq. you want it to work
best on wont you? Why? because a 1/4 wave is a 52 ohm load at
the resonant frequency. Thats what a discone does, it happens to be
a 1/4 wave on a lot of different frequencies, thats why you can xmit
on it. Scantennas work, just not well enough for me to have one up
and with the 1st freezing rain and wind that comes along it ends up
bent up like a pretzel. The only band where it outperformed the discone
was in the 152-155 band where the LEO's use in different counties.


Jeff


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Old September 11th 04, 01:37 AM
BDK
 
Posts: n/a
Default

In article kUq0d.22548$D%.9053@attbi_s51, "Jeff" oldog@(nospam)
mchsi.com says...

"BDK" wrote in
message -------------------------------------------------------------------------------




If I had my choice as one single antenna to use, I would probably pick
the home built ground plane (I can build one that will last forever),
with the ringo a close second. The scantenna's next only due to it's
fragility. I may build a HD one myself one of these days..

As far as impedance goes, it's pretty meaingless for receivers, loss is
much more of a problem.

I need to find a climber to change the coax on my ringo, and put up
another discone as a backup to it, for 2M/440. I don't want to get
ripped off for 300 bucks like I did 10 years ago, 25 of it was for
coming over the border into my town. That 150 yards cost 4 times as much
as the ground plane I made the day before cost me!

-------------------------------------------------------------------------------

I suggest you go back and study some rf transmission basics.
Impedance is important on recieve if you want to get maximum signal
transfer. In an impedance matched circuit you will get maximum
flow of rf, than in a non resonant circuit. This applies to recieve as
well as transmit. Why do you think they use that little 1.95$ 300ohm
to 50ohm transformer on the scantenna? It isnt there for looks. And no
my VR 5k wasnt suffering from intermod or overload, had an AM
filter, an FM filter, and a paging freq. filter on it and it works quite
well. If you build your own ground plane, I bet you will make the
elements to come out to 1/4 wave on the freq. you want it to work
best on wont you? Why? because a 1/4 wave is a 52 ohm load at
the resonant frequency. Thats what a discone does, it happens to be
a 1/4 wave on a lot of different frequencies, thats why you can xmit
on it. Scantennas work, just not well enough for me to have one up
and with the 1st freezing rain and wind that comes along it ends up
bent up like a pretzel. The only band where it outperformed the discone
was in the 152-155 band where the LEO's use in different counties.


Jeff





LOL, whatever you say...calm down.

If I had to throw all those filters on the Yaesu, I would have just
bought an ICOM R8500 in the first place and it would have made life
easier, or kept my 7100, since I didn't need another SW receiver.

You do realize that a scanner doesn't want 50/52 ohms at most of it's
freq coverage, dont you? It's kind of hit and miss at best. I know what
the transformer is for. I'm just posting that in my almost 40 years of
VHF and up monitoring, the scantenna, fragile as it was/is (I don't have
a HD version to check out)is vastly, not just a little bit superior to a
discone.


Let them buy discones if they want!! I don't own Channel Master, or
whoever makes it these days...



BDK
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