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Tweaks

 
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fritodog
EVDO Newbie


Joined: 19 Apr 2006
Posts: 8

PostPosted: Sat Jun 17, 2006 9:24 am    Post subject: Tweaks Reply with quote

I'm in a fringe area using an amped Kyocera KPC 650 to connect to Verizon's EVDO network and have a few questions:

1.) Is there any concensus on tweaking connection settings to improve speeds or is this more just a matter of trial and error specific to each individual situation?

2.) In terms of the embedded Preferred Roaming List (PRL) in my card, is this something that gets updated when I do a software update using the VZAccess Manager or do I need to run a separate update?

3.) Are there any other signal booster or connection tweaks that I should know about or investigate?

Tks,
FritoDog
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MaximumSignal
EVDO Vendor


Joined: 08 Apr 2005
Posts: 586
Location: Cheektowaga, NY

PostPosted: Sat Jun 17, 2006 9:51 am    Post subject: Re: Tweaks Reply with quote

fritodog wrote:
I'm in a fringe area using an amped Kyocera KPC 650 to connect to Verizon's EVDO network and have a few questions:

1.) Is there any concensus on tweaking connection settings to improve speeds or is this more just a matter of trial and error specific to each individual situation?

2.) In terms of the embedded Preferred Roaming List (PRL) in my card, is this something that gets updated when I do a software update using the VZAccess Manager or do I need to run a separate update?

3.) Are there any other signal booster or connection tweaks that I should know about or investigate?

Tks,
FritoDog


If I remember correctly you are using the trucker antenna. The only more powerful antenna we have is the yagi . I like to tell people that the having the Yagi is a labor of love. You have to mount it nice and high and be patient when aiming it .But when you get it aimed bang on it will bring you a better signal. Yagi's work better in areas where you have good line of site and there are no major terrain issues as they are very directional
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Michael
Site Admin


Joined: 13 Jan 2005
Posts: 5086
Location: Cary, IL

PostPosted: Sat Jun 17, 2006 10:17 am    Post subject: Re: Tweaks Reply with quote

Hello,

You can perform some of the tweaks that are outlined up here, BUT if you have weak signal, they may or may not help:

[url=]SuperCharged EVDO - Free Tip[/url]

Yes, when you do an "activation" the PRL gets updated in your card, think of it as a text file that contains all the towers your card knows about. It may be important to update this. It also depends on your carrier and if they do roaming agreements or acquire other carriers. It is a good idea keeping this updated. VZAccess Manager will remind you to do the update every 30 days.

See the SuperCharged tip above. But it all comes down to signal, if you are only getting one bar, you would want an amplifier and good external antenna.
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fritodog
EVDO Newbie


Joined: 19 Apr 2006
Posts: 8

PostPosted: Sun Jun 18, 2006 6:28 am    Post subject: Reply with quote

Thanks for the feedback...I will try some of the tweaks discussed in the url you sent me.

In terms of switching to a yagi, is there any way for me to determine which towers in my area are used by Verizon so I can point at them? I went to www.cellreception.com, but there are many towers shown in my area. Based on Verizon's coverage map of the Tampa-St Pete area, I know the coverage area is generally northwest of my location...I'm in a fringe area, but with amp and external 5dB gain mag-mount antenna, I am picking up EVDO, but am looking at options to improve my signal and speed.
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WPSANTENNAS-MATT
EVDO Heavy User


Joined: 27 Oct 2005
Posts: 110
Location: Rochester Minnesota

PostPosted: Sun Jun 18, 2006 8:20 am    Post subject: Reply with quote

Verizon is 1900 Mhz in the entire state of Florida so you may want to consider a 1900 mHz single band yagi if you end up going that route as they are more efficient than dual band models.
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fritodog
EVDO Newbie


Joined: 19 Apr 2006
Posts: 8

PostPosted: Sun Jun 18, 2006 11:37 am    Post subject: Reply with quote

My amp is dual-band...so, from my understanding, unless I want to buy another amp, I need to stick with a dual-band antenna.
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MaximumSignal
EVDO Vendor


Joined: 08 Apr 2005
Posts: 586
Location: Cheektowaga, NY

PostPosted: Sun Jun 18, 2006 12:17 pm    Post subject: Reply with quote

fritodog wrote:
My amp is dual-band...so, from my understanding, unless I want to buy another amp, I need to stick with a dual-band antenna.


You can upgrade to the dual band trucker or dual band Yagi . You need to stick with a dual band antenna . If you have line of sight and no terrain issues go with the yagi . Be warned , they are a labor of love. It takes time and patience to mount and aim them but when you get them bang on the increase in signal is very rewarding
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Scott
EVDO Junkie


Joined: 18 Jul 2005
Posts: 530
Location: Central Coast of California

PostPosted: Sun Jun 18, 2006 6:48 pm    Post subject: Reply with quote

Why again, exactly, is it a requirement to use a dual-band amplifier with only a dual-band antenna?

While antennas may be optimized for a a specific frequency they still pickup/transmit other frequencies, so even a single-band antenna connected to a dual-band amplifier would provide some 800 MHz in this case (or 1900 MHz in the case of an 800 MHz antenna). For that matter, dual-band antennas don't output/pickup equally for both bands anyways.

Why would a dual band amplifier even need a null signal at 800 MHz just to operate? Since that market only uses 1900 MHz and there is nothing even transmitted or received on 800 MHz, how would the signal amplifier detect the difference of whether the signal was there due to not being transmitted or just not getting picked up?
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MaximumSignal
EVDO Vendor


Joined: 08 Apr 2005
Posts: 586
Location: Cheektowaga, NY

PostPosted: Sun Jun 18, 2006 9:45 pm    Post subject: Reply with quote

Scott wrote:
Why again, exactly, is it a requirement to use a dual-band amplifier with only a dual-band antenna?

While antennas may be optimized for a a specific frequency they still pickup/transmit other frequencies, so even a single-band antenna connected to a dual-band amplifier would provide some 800 MHz in this case (or 1900 MHz in the case of an 800 MHz antenna). For that matter, dual-band antennas don't output/pickup equally for both bands anyways.

Why would a dual band amplifier even need a null signal at 800 MHz just to operate? Since that market only uses 1900 MHz and there is nothing even transmitted or received on 800 MHz, how would the signal amplifier detect the difference of whether the signal was there due to not being transmitted or just not getting picked up?


Dual band amplifier will not work properly with a single band antenna. It needs to be able to search both frequencies. Customers that have tried using single band antennas with the dual band amplifier have documented this
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Scott
EVDO Junkie


Joined: 18 Jul 2005
Posts: 530
Location: Central Coast of California

PostPosted: Sun Jun 18, 2006 11:36 pm    Post subject: Reply with quote

MaximumSignal wrote:
Dual band amplifier will not work properly with a single band antenna. It needs to be able to search both frequencies.


Why? What's the difference of "searching" a Sprint PCS 1900 MHz market with a dual-band antenna where there is no 800 MHz, and "searching" a Sprint PCS market with a 1900 MHz single-band antenna?
There's nothing on 800 MHz to see in either case (though as I stated above, even a 1900 MHz single-band antenna will pickup some 800 MHz, and vice-versa).

MaximumSignal wrote:
Customers that have tried using single band antennas with the dual band amplifier have documented this


Is it possible they were in an 800 MHz-only Verizon market when trying a 1900 MHz single-band antenna? Or was this a 1900 MHz market that required "searching" dead air? In the case of a Verizon market, did they use a fieldtest type app to check frequencies for their area to be sure?

You have tested your amps with both 800 & 1900 MHz single-band antennas to get first-hand experience with this limitation, right?
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MaximumSignal
EVDO Vendor


Joined: 08 Apr 2005
Posts: 586
Location: Cheektowaga, NY

PostPosted: Mon Jun 19, 2006 8:17 am    Post subject: Reply with quote

Scott wrote:
MaximumSignal wrote:
Dual band amplifier will not work properly with a single band antenna. It needs to be able to search both frequencies.


Why? What's the difference of "searching" a Sprint PCS 1900 MHz market with a dual-band antenna where there is no 800 MHz, and "searching" a Sprint PCS market with a 1900 MHz single-band antenna?
There's nothing on 800 MHz to see in either case (though as I stated above, even a 1900 MHz single-band antenna will pickup some 800 MHz, and vice-versa).

MaximumSignal wrote:
Customers that have tried using single band antennas with the dual band amplifier have documented this


Is it possible they were in an 800 MHz-only Verizon market when trying a 1900 MHz single-band antenna? Or was this a 1900 MHz market that required "searching" dead air? In the case of a Verizon market, did they use a fieldtest type app to check frequencies for their area to be sure?

You have tested your amps with both 800 & 1900 MHz single-band antennas to get first-hand experience with this limitation, right?


The device does not know till it searches that the frequencies in the market or that one frequency is being used and which one that is . The amplifier takes direction from the device. Verizon operates on 800 and 1900 so the device must be able to search both to determine where it will get its signal from . Sprint uses 800 mhz for its roaming this will occur even more now with the agreement with Alltel is coming into effect. The testing you are looking for has come from our customers, numerous results from them who have used single band antennas and the results and effects have lead us to these conclusions. Rather than overthink this we have drawn the conclusion that for proper operation of a dual band amplifier a dual band antenna should be used. That is why we only carry dual band antennas and advise our customers to use them . I hope this answers your questions . I fit does not , sorry thats all I have got.
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Scott
EVDO Junkie


Joined: 18 Jul 2005
Posts: 530
Location: Central Coast of California

PostPosted: Mon Jun 19, 2006 1:38 pm    Post subject: Reply with quote

Ok, thanks for sharing your customer's experience. I was hoping for information based on your own testing conclusions.

You've never had an issue with the 8 element yagi antenna that you sell?

That antenna is tuned to one of four frequency ranges, so is either an "824MHz to 896MHz" or an "1860MHz to 1960MHz" (800MHz or 1900MHz), but not both.

How is it that there are no conflicts with that antenna yet there are with other yagis tuned to 800 or 1900 MHz?

Obviously a yagi's frequency range can be stretched, but then the actual gain is greatly reduced, so the power rating in dBi would be much lower than that stated for a specific narrow range.

Think of it as an antenna with a peak at a narrowly tuned frequency range versus one with a gradual hump that covers more frequencies, yet delivers greatly reduced power (since that energy is spread across a wide area... why omni antennas don't have the high decibel ratings that directional antennas do).
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MaximumSignal
EVDO Vendor


Joined: 08 Apr 2005
Posts: 586
Location: Cheektowaga, NY

PostPosted: Mon Jun 19, 2006 2:43 pm    Post subject: Reply with quote

Scott - no issues at all Everyone is very happy with the quality of the antenna as well as the price.
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