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Hi all,
I am planning to modify an existing handsfree set for use with my XDA and during planning I found:
http://www.cheap.de/shop/pd1044621724.htm?categoryId=8
On this page you will see the following line:
Anschlussmöglichkeit für externe Antenne
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For those that can't understand German: Can support external antenna
How do they do this? I have not found any reference of a connector for an external antenna.
Regards Robert
6 foot tall ape descendant
external antenna
:x :x bummer, this was posted by me but I wasn't logged in :x :x
Climber, Robert
6 foot tall ape descendant
It probably uses a passive coupler. If you place a properly-designed coil very close to the phone antenna it will couple RF effectively.
Your right!
Got the car kit yesterday. Opened the cradle and found a large piece of PCB that is positioned close to the antenna of the XDA. This PCB is connected to the lead that comes from the external antenna.
Francois
Yeah, a passive coupler. Makes sense. It should give you a 3-5dB boost, good enough to clean up conversations in fringe areas.
external Antenna
Sorry,
whats PCB???
Can U make a Photo?
Stevie
PCB = Printed Circuit Board.
A foto would be overkill, just imagine a piece of epoxy 5*5 centimeters, covered with copper.
Francois
Hello FVH,
would be nice to hear your experiences with the car-kit.
Does radio mute work ?
Does the sound work through the radio speakers ?
What is in the box of the car-kit ?
Is it worth the money ?
Thanks :lol:
FVH,
Re the PCB description, is it just as you say "a flat piece of copper" without a pcb design on it, if it does what does it look like... are there any other components on it?
e.g. can we make one up easily!
using sticky back plastic or veroboard - e.g. Blue Peter with a bit of Maplin thrown in to achieve a better xda signal...
So if this thing really is just a flat plate, and has no intrinsic components, pcb tracks or special properties...does it that mean we could just rig up a sheet of tinfoil or other conductive item nearby...
I guess we need a Radio Ham with an xda to tell us we're onto a lost cause - Hopefully owning an xda is not like the early days of broadband, where you have to base your homebuying/renting on where you can get a service!
Or someone who's tried out the inductive antenna as mentioned on the other thread http://www.xda-developers.com/forum...=0&postdays=0&postorder=asc&highlight=antenna
http://www.expansys.us/product.asp?code=AXF-15S
You can make a perfectly tuned antenna/pickup out of just copper etching on a piece of PCB. Unfortunately, it is infinitely easier to create a distuned antenna from the same components.
After a lot of research it seems the "as seen on TV" signal booster widgets (small PCBs) as suspected dont work.
http://www.bettercalls.com/
http://cellphones-accessories.com/cell-accessories/celphonpow24.html
This is a brilliant site where I found all the info:
http://www.criterioncellular.com/html/reception.html
Whats needed is either:
1) someone making a replacement antenna - as from the internal images shown on this website, it seems fairly easy to remove when dismantling the xda. Why not have a replacement one with an external FME antenna connector. This could then be attached to a small car type antenna.
http://www.tdc.co.uk/antennas/antenna_gsm.htm
apologies if my theories are a little optimistic on this... its just an idea.
2) Purchase of an external signal booster, which can be attached to a small antenna. Then directly plugged into a modified antenna (as 1 above)
3) A seperate re-radiator to boost the outdoor GSM signal inside the home, although this seems expensive! ($279)http://www.criterioncellular.com/html/cellular-amplifier-bda.html
4) as carlos suggested an inductive repeater, you can buy these for GPS systems, why not for GSM signals?http://www.expansys.com/product.asp?code=GPSW-RRAD-45
FVH - Have you noticed any difference with signal using the inductive coupler?
:wink: [/b]
Hi,
I dropped my XDA 1 the other day and the grey antenna came off. I clipped it back on but since then reception has been very lousy.
I spoke to someone about it and they said there was a small metal stubb antenna that goes up inside the grey plastic antenna cover (that the stylus goes in) that I must have lost / broken off when i dropped it.
My question is.. is that right?- and if so then I have lost the small round metal stubb antenna and need a new one. Is there somewhere I can buy one online? O2 Support in Australia is next to non existant.
Thanks.
J
Yep there is a metal spring inside the xda aerial made of a copper, I had to remove the aerial to get a half a stylus that got caught inside the XDA
Janos, I have an antenna but you are a loooooong way from me.
Thanks bill received the antenna today - Just fitted it - havent tested it yet as battery is flat - sure it will be fine.
Cheers,
J
Hi folks, i'm thinking of getting the metal case for my dopod u1000. Just one question in my mind, how's the signal reception for gsm/umts and gps ? Does the metal case have any effect on the signal ? Thanx !
Testimo85 said:
Hi folks, i'm thinking of getting the metal case for my dopod u1000. Just one question in my mind, how's the signal reception for gsm/umts and gps ? Does the metal case have any effect on the signal ? Thanx !
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That's a good question. I would like to know the answer as well. If no one responds would you mind posting your experience when you get the new case?
Metal case
Hey itxda & Testimo85,
I've got a metal case but I'm affraid to say that it cut the reception right down.
I had a full signal in my house before using the case with the case it when down to 1 and sometimes no signal at all.
The case is a good protector but bad for reception.
I've noticed that when the signal when down the minute I open the case the signal when straight up to full signal.
I still cannot understand why this is I'm thinging of make a few holes at the top of the case to see if then I can get some signal.
I well let you known later in the week.
But if I was you I would not get one at this moment.
Hope that this answers you question.
Ciao
Gigino
According to my previous experience using metal case, I can confirm it cause bad signal reception.
Thanx for the info guys. I guess i wouldn't get one soon. Waiting for your progress with the modified case, gigino.
gigino said:
Hey itxda & Testimo85,
I've got a metal case but I'm affraid to say that it cut the reception right down.
I had a full signal in my house before using the case with the case it when down to 1 and sometimes no signal at all.
The case is a good protector but bad for reception.
I've noticed that when the signal when down the minute I open the case the signal when straight up to full signal.
I still cannot understand why this is I'm thinging of make a few holes at the top of the case to see if then I can get some signal.
I well let you known later in the week.
But if I was you I would not get one at this moment.
Hope that this answers you question.
Ciao
Gigino
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Thanks for the info. I figured it would go either way and it took a turn for the worse. Hope the mods you implement help...let us know.
Ciao!
i confirm that the metal case takes out a bar or two in my phone signal. when a call comes in, opening it increases the reception.
aside from this, it's my opinion that the metal case also lenthens the time or the gps to get a satellite fix. i used to put my unit on the dash...but now when i have to use gps i take it out of the metal case and use the wind shield wiper mount.
buttttttt....i'm still using it =) it's very handy protection because i chuck it in the baby diaper bag lots of times =)
cheers
Hey guys, I was just about to purchase this case but then started wondering if it would adversely affect my signal strength so I thought I would jump on here and see if any of you have used an aluminum case and what the results were...
Thanks for any info, you guys rock!
It has a very good possibility of affecting the signal since the antenna will have a clunk of metal around it. But I dont have any first hand knowledge. Why not just get a plastic case. They effect it less.
I really want a case that has a door with a window on it..do you know of any plastic one?
Anyone else have any experience with aluminum cases?
Perhaps I am a pioneer in the area of aluminum cases and the HTC Mogul...or perhaps no one is paying attention to this thread because it's posted in the wrong area. I don't suppose an admin could move this over to the accessories sub forum could they.
Aside from this, where is the antenna located in the mogul? I'm thinking that if I do end up with signal issues I will cut slits the length of the antenna in the case.
Any info on this would be greatly appreciated!
conradcliff said:
Perhaps I am a pioneer in the area of aluminum cases and the HTC Mogul...or perhaps no one is paying attention to this thread because it's posted in the wrong area. I don't suppose an admin could move this over to the accessories sub forum could they.
Aside from this, where is the antenna located in the mogul? I'm thinking that if I do end up with signal issues I will cut slits the length of the antenna in the case.
Any info on this would be greatly appreciated!
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Sounds pretty cool, can you link us to the particular case mentioned? Other than that I have no experience with metal (aluminum is considered a metal for the banterers) cases either. Personally I would stick to plastic, but sounds neat.
There's a link to it in the first post, but here it is again.
I've been walking around with an ipaq 2215 for the last 5 years with an aluminum case and that thing has saved my life on many occasions.
The plastic would be ok too I think, but only if I could find one that had a door that closed over the screen..
Who do you think I should talk to to get this moved over into accessories? I didn't even realize there was an accessories category when I posted this..
conradcliff said:
There's a link to it in the first post, but here it is again.
I've been walking around with an ipaq 2215 for the last 5 years with an aluminum case and that thing has saved my life on many occasions.
The plastic would be ok too I think, but only if I could find one that had a door that closed over the screen..
Who do you think I should talk to to get this moved over into accessories? I didn't even realize there was an accessories category when I posted this..
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That case is awesome. I really like it. Interested to see if it ruins the signal quality, or possibly enhance it lol I dont know.. It looks properly designed, I am sure the manufacturer took the antenna location into consideration. I would go for it. Let me know how it works out, hopefully by then one is still available. I can grab one myself.
I will have this moved for you.
Thanks for getting this moved for me Ryan..yeah, I think I'm going to purchase the case within the next few days unless someone pipes in with a negative review.
In the meantime, does anyone know where the antenna is located in the 6800?
Thanks for any help!
So, I came in here to bump the thread up one more time before I bought the case, but it was still at the top...doesn't seem like people are too concerned about Titan accessories any longer
I guess 150 views is enough though, I think I'm just going to bite the bullet and buy.
Will update once I've tested in the low signal areas that I frequent.
I had the exact same case for my xv6700 and never had any signal issues. The case worked well and kept my 6700 looking brand new!
I really liked the lexan screen cover.
I tried the seidio rubberized case for my titan. it worked awesome for about 10 months until the little tiny tabs that held it on broke off. Only a 90 day warrenty so SOL. Now I use a cudora pouch.
So let me know how the aircraft aluminum one fits!!
That's great to hear! I'm going to order it tonight and maybe upload some pics when I get it..
hi conradcliff
dont forget test review the case (how about the look, size etc) and upload the pict, i want to buy also, but it seems need 2 week to deliver it to my country
Oh I most certainly will..I'll also post the coupon code they gave me for 10% off, hopefully it will work for anyone.
Initial Review: Monaco Aluminum Case for Mogul/6800
Short answer: A well designed, sturdy case well worth the ~ $20 price. I'll add some photos soon. Sorry if I stepped on anyone's toes who intended to write one of these up, but hey, two opinions are better than one!
I've had three of these cases for three separate Sprint 6800's. Two black, one silver. For those familiar with Monaco Aluminum Cases (they made/make these for other phones, such as the 6700), this embodiment is just as good.
Pros:
Very solid design - this case can easily outlast the life of your phone. Aside from slight exterior discoloration, dings, and scratches, this case should easily withstand all normal, day-to-day use.
Inner liner - this case includes an inner liner made of neoprene that protects the phone from minor scratch/abrasion marks; that provides a very snug fit for the phone; and provides *minimal* fall protection. Two-story drops and projectile usage by angry girlfriends are not protected.
Access - the case provides access to all buttons, dials, interfaces (except for touch screen & slide-out KB). Luckily, almost all functionality of this phone can be effectuated without the touch screen (not the TP, grrrr), so you will not have to open the case too often, which is very nice. When you do open the case, the keyboard slides over the open top of the case nicely.
Vents (Air/Signal) - there are vents on the top, back, and right side of the case for air and/or signal paths. I've experienced no signal difference, or even heat difference, with this case. I'm sure it does insulate the phone to some degree, but it's minimal.
Belt Clip - the case comes with a belt clip and swivel that are relatively secure and convenient. I've had one belt clip split (the plunger portion), but it is still very usable. You don't have to use them, but I do. The round swivel that screws into the back of the case provides a nicer grip of the phone, IMHO. If you don't like either, you don't have to use them.
Cons:
Weight - it does add weight to your phone. It's not extreme, but holding the phone for extended periods of time may prove annoying by some with this extra weight. I don't mind it at all, and I have a headset and use speakerphone anyhow.
User Adjustment Required - Out of the box, this case is NOT ready to use! You absolutely must gauge how well the metal clip engages the main body of the case. Every case I've received required me to slightly bend the clip inwards to provide a stronger hold. If the hold is too weak, brushing against the side of the case (by your arm when walking with the case attached to your waist side, or by anything you may brush against) can result in your phone falling out to the ground. So, adjust the clip right away, and ALWAYS, periodically check it, as repeated opening may loosen the hold over time. Also, when wearing this case attached to the side of your hip, attach it to your left side so the metal clip and catch of the case are facing behind you. This way, brushing against something while you're walking will not accidentally open your case allowing your phone to drop out.
Plastic Cover - this cover can scratch. I tried placing a screen protectors over it, but they would never stay. The oil from your face/hands/etc, along with the lack of a frame protecting the edges of a protector from friction are mostly to blame. However I've learned that with a little care, the plastic screen can survive everyday use quite nicely.
So, I highly recommend this case!!
10% off coupon code -> EIWQC1257830
"Simply insert the coupon code during our checkout process and instantly save 10% off the merchandise.
You can use the coupon up to 5 times. This code will expire after 60 days [from 10/7/09]."
There's more to know though so don't buy until you get my review..hopefully tomorrow.
Any sort of metal on ends.. Or chrome plastic.. It seems to mess with connection.. I had one for months and noticed a slower connection.. And i bought my girl a s9 plus and got her a gold chrome plastic case.. And her connection was supper slow... Once on then she took it off and connection went back to normal
And today i took mine off and presto made a big difference
I use aluminum bumpers, zinc alloy and cristal, silicon-aluminum, policarbonate plated, etc, all sorts of cases, amd never have suffered signal loss, in your case, well I something else may be happening
Metalic bumpers or cases with metalic paint act as faraday cages, which prevent radio or cell signals from being transmitted
Nothing else.. It happened also on s9 plus... Once the case removed the signal went back to normal... Maybe Chinese brands
iceepyon said:
Metalic bumpers or cases with metalic paint act as faraday cages, which prevent radio or cell signals from being transmitted
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I understand what you say, but I have not had any trouble ever, using aluminium bumpers or zinc-alloy cases, and I have bought many of them since my S3, but that is my personal experience in my country and the service carrier I use
winol said:
I understand what you say, but I have not had any trouble ever, using aluminium bumpers or zinc-alloy cases, and I have bought many of them since my S3, but that is my personal experience in my country and the service carrier I use
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Interesting.... I guess it depends on how thick or if there are any thick rubber spacers in place between your device and the case/bumper
iceepyon said:
Interesting.... I guess it depends on how thick or if there are any thick rubber spacers in place between your device and the case/bumper
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Faraday cages must enclose the entire device and be grounded to really isolate it
winol said:
Faraday cages must enclose the entire device and be grounded to really isolate it
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I don't think the faraday cages need to be grounded in order to block all cell signals. You just have to cover all the antenna lines with metal in order to block the signals.
Well, the really important fact in all I posted here is, That I have never suffered signal degradation when using aluminium bumpers or cases made with zinc alloys, with many different devices, as they do not enclose the WHOLE device, a faraday cage, as it name says, encages entirely what you want to isolate
The case kn both a s9 plus and my note 8 only had the bumpers gold chrome plated...
I just wanted people to know what I went thru
This one