testing bluetooth signal strength

a lot of us with intel macs are having connectivity issues with both bluetooth and WiFi. I know a lot of things to do to examine signal strength, throughput, ping times, etc. to evaluate the WiFi connectivity after trying various changes and updates. but I don't know how to do any test of the bluetooth connectivity--other than yes or no. My subjective sense was that my bluetooth mouse was sluggish and the bluetooth keyboard was slow, compared to when connected to a PPC mac mini. But I don't know any way to verify that. Any signal strength indicators hidden somewhere in the mac software? downloadable? any suggestions appreciated.

mac Mini, Mac Mini (intel), iMac (intel), 12" PBook, Mac OS X (10.4.6)

Posted on Apr 5, 2006 4:39 PM

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17 replies

Apr 5, 2006 11:15 PM in response to mtnMan

Hi, mtnMan —

(1) Mac OS X 10.4 did introduce some "hidden tools" — they're available in the /Developer/Applications/ Utilities/Bluetooth/ directory if you installed Developer Tools from your Install Disc (which is easy to do). I'm not sure whether they'll provide the functionality you're looking for...

A brief description from the Mac OS X Bluetooth Profiles and Applications section of Apple Developer Connection document Working with Bluetooth Devices:
"In Mac OS X, version 10.4, Apple introduced two new Bluetooth applications:
Bluetooth Explorer.
This application allows you to:
Verify that your new Bluetooth service is properly registered
View a computer’s Bluetooth hardware information
Perform inquiries and view detailed results regarding discovered devices
View active Bluetooth connections
Select different Bluetooth hardware attached to the computer (if more than one Bluetooth device is present
on the computer).
Packet Logger.
This application monitors all Bluetooth traffic being transmitted on the computer and saves it to a log file. You can then view the captured data in the log file to help debug problems in your application, or with Bluetooth hardware."
(2) AFAIK, "signal strength" isn't necessarily the key variable in re: interference between Bluetooth and WiFi. Bluetooth Specification v.1.2 (your Intel-based Macs contain new CSR chips that are ~compliant with the newer v.2.0+EDR Specification) introduced adaptive frequency hopping (AFH) as a tool for minimizing Bluetooth's impact on WiFi performance. Quoting from the Bluetooth.com article on How Bluetooth® Technology Works:
" Devices in a piconet [or "PAN;" terms coined for small Bluetooth networks] use a specific frequency hopping pattern which is algorithmically determined by certain fields in the Bluetooth specification address and clock of the master. The basic hopping pattern is a pseudo-random ordering of the 79 frequencies in the ISM band. The hopping pattern may be adapted to exclude a portion of the frequencies that are used by interfering devices. The adaptive hopping technique improves Bluetooth technology co-existence with static (non-hopping) ISM systems when these are co-located."
(3) I just spent a few minutes following links to and scanning some of the threads about wireless performance in which you've participated. My initial "take" is that several folks may not understand how Bluetooth technology works — particularly wrt "pairing" and "connectivity." The apparent issues under discussion about AirPort performance seem to be largely unrelated to Bluetooth, at least based on a quick review of the discussions I checked. It may also be worth noting that Apple's implementation of Bluetooth in Mac OS X isn't new, and is ~independent of the PPC or Intel platforms.
(4) If you haven't already, I urge you to contact AppleCare directly to seek assistance in resolving your frustrations. In my experience, AppleCare Technical Support can be very helpful — particularly at the "product specialist" level. If the problem isn't solved during your conversation with a technical support rep., you'll be given a case number for use at an Apple-Authorized Service Provider (AASP — limited to authorized hardware problems) or for future reference. If the problem persists, your subsequent call(s) may be forwarded to higher-level support folks ("product specialists"). AppleCare Tech. Support is also one means that helps Apple to recognize widespread problems and focus their engineers on finding solutions.
(5) Since you sound as if you'd like to "dig down" into Bluetooth further, please note that Bluetooth.com (the "Official Bluetooth® website"), Bluetooth® SIG (Special Interest Group of lead companies developing the open-source specifications), PaloWireless Bluetooth Resource Center, and Bluetooth White Papers are excellent resources. AppleCare has also made a significant effort to make both Technical and Help articles about Bluetooth available in its KnowledgeBase. The Bluetooth specifications, profiles, protocols, etc. are available from Bluetooth.com via this download page, if you're interested.
(6) If you'd like to pursue this further, please feel free to post back or email me at your convenience. Please note that there are other participants here and in Apple's bluetooth-dev Mailing List much more knowledgeable than I — but I'll be happy to help however I can.
HTH!
Regards,
Dean

I edited this message...
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Apr 6, 2006 2:13 AM in response to mtnMan

Bluetooth (and its chips) do not allow to give anything else than yes and no as signal strength. It is possible to do more but not on the Mac. However, this is quite scientific and even there it does not help. Bluetooth has no standard real signal strength. Forget it immediately.

Make sure you have update the firmware, both of your internal Bluetooth module and of your keyboard/mice. After this update everything should work fine. Alternatively deactivate AirPort and use a Ethernet cable. Or even better, use a cable keyboard and mouse.

@Dean Pahl
Ähm, everything fine with you?

Apr 6, 2006 9:44 AM in response to Alexander Traud

Bluetooth (and its chips) do not allow to give
anything else than yes and no as signal strength. It
is possible to do more but not on the Mac. However,
this is quite scientific and even there it does not
help. Bluetooth has no standard real signal strength.
Forget it immediately.


yeah, I pretty much figured out that "yes" and "no" are the only signal strengths. but it seems like there should be some way to check something like the perceived sluggishness of the mouse. probably some timed behavioral task.

Make sure you have update the firmware, both of your
internal Bluetooth module


that firmwareupdater is for ppc macs (and even the ppc mac mini isn't on the list for that updater). i'm fairly certain that the intel macs use a different bluetooth chip. and in any case, since my core duo is fresh out of the factory surely the 2004 updater you referenced isn't appropriate. the most recent os 10.4.6 update did update the bluetooth firmware to 0.1.17, but that didn't help.

and of your keyboard/mice.


this keyboard and mouse were purchased a year after the date of that updater so again I doubt that is the problem. and the mouse works perfectly with my 12" pbook, an original mac mini, and many other bluetooth computers. it is only with my intel mac mini core duo that there are problems.

After this update everything should work fine.


nope.

Alternatively deactivate AirPort and use a Ethernet
cable. Or even better, use a cable keyboard and
mouse.


uh, apple's advertising is pushing the mac mini with Front Row, etc. as the choice for one's media center computer. That is why I purchased it. Neither ethernet cable nor cabled keyboard/mouse would be appropriate. If I can't use airport or bluetooth devices, then this core duo mac mini is nothing but a paperweight.

Apr 6, 2006 11:25 AM in response to Dean Pahl

hi Dean Pahl,

wow! thanks for your very informative reply.

(1) Bluetooth Explorer and Packet Logger
i found them and learned a lot by using them but they don't quite answer the question of why the bluetooth mouse is sluggish when paired/connected with the intel core duo mini but not with the ppc mini.

(2) signal strength.
yes i realize this is a red herring. but interesting to learn about so thanks for your pointers.

(3) the discussions.
i find it striking that a lot of us are experiencing the same problem with the intel macs and that we never had these problems with prior ppc macs. you say implementation of bluetooth is independent of PPC or Intel platforms. are you sure? people who've opened their minis say that bluetooth and airport are on the same card and that has never been the case before. you even note that intel Macs contain new CSR chips that ar ecompliant with the newer v.2.0+EDR spec. the similarity of reports suggests there may be errors in these new chips. and the subjective sense is that they may be "too" adaptive and get lost. e.g., wifi performance for me was definitely improved when i restricted the base station to be EITHER b or g.

(4) applecare.
believe me, i've had plenty of discussions with applecare! the first line folks don't know anything about this. several times at the second tier (and others report the same experience) i've been told, "yes, we've been hearing a lot of reports like this and our engineers are working on it." but when that 2nd tier either bumps me to the 3rd tier or I get there myself the story changes to "we've never heard of this. the problem is on your end. try taking your machine to an authorized repair." given my best such place is 60 miles roundtrip, I wanted to be sure "replacing the atennae" was likely to be effective. given that OS and firmware updates have changed the behavior from better and then worse, i doubt it is the antennae. and i got my case# right away.

(5) bluetooth refs.
thanks very much for all the pointers. at least as much as i want to know! but you are correct that i'm using this current problem as a current excuse to dive more into how bluetooth works.

(6) did another obvious test with the mouse. compared cabled and bluetooth mouse on the intel mac mini and there was no comparison. the cabled mouse performed excellently while the bluetooth mouse was noticeably sluggish. however, when i try both on an older ppc mini, performance of the two mice is identical. also, turning bluetooth off on the intel mini had NO effect on the lousy wifi performance so it isn't bluetooth interferring with the airport.

thanks again for your extremely helpful and instructive response!

Apr 6, 2006 3:02 PM in response to Alexander Traud

Hi, Alexander —

"@Dean Pahl
Ähm, everything fine with you?"


Yes, my friend... I wish I could say, " Laissez les bontemps roulez!" — I lived almost 20 years in New Orleans, years ago — but, alas, that would be pushing it...
Alexander, I have a few questions I'd like to ask you every now and then. Would you mind sending me an email sometime to facilitate this? [I would, of course, be circumspect...] Or do you think I should post to — and not just follow — bluetooth-dev? I hate to belabor driver development threads with what are more technical user issues. But there doesn't seem to be a home for such in-between queries — and this would help me to help others...
Thanks for adding your expertise to answering mtnMan. mtnMan — I'm out and about today; I''ll read through more and reply if & as appropriate later...
Warm regards,
Dean
Oops! A quick addition, aimed at you, mtnMan —
I agree strongly with Alexander's comment that current firmware is important with wireless technologies. Bluetooth is an evolving technology, and attention to this is required to take advantage of what are an ongoing series of improvements. But I also want to point out specifically that updating your keyboard/mouse firmware is not readily feasbile when you're running OS X 10.4.x Tiger. It requires a work-around — as described in Apple Wireless Mouse and Keyboard: Update firmware before upgrading to Mac OS X 10.4:
"Before upgrading to Mac OS X 10.4 "Tiger," make sure that you update the firmware for your Apple Wireless Mouse and Keyboard first. The firmware updater for the Apple Wireless Mouse and Keyboard will not open in Mac OS X 10.4.
"If you didn't do this before upgrading to Tiger, you can work around this issue by temporarily pairing the mouse and keyboard with a Bluetooth-enabled computer that's still using Mac OS X 10.3, and apply the firmware update from that computer."
Please note that these comments are in re: HID (keyboard/mouse) only. Yes, you've a new card, with both 2.0+EDR and combining AirPort/Bluetooth — which in and of itself is fine. (Unless there's a manufacturing batch issue or something.) I believe that CSR remains the manufacturer, at least in part — but haven't been able to find it yet via their webstie [ah! OEM!]. Btw, in case you haven't noticed yet, the new Mac mini and MacBook Pro service manuals have been posted on the Whoopsis Mac repair resources webpage — so you can see the card up close & personal via pdf, if you're so inclined...
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Apr 6, 2006 3:55 PM in response to Dean Pahl

"Before upgrading to Mac OS X 10.4 "Tiger," make sure that you update the firmware for your Apple Wireless Mouse and Keyboard first. The firmware updater for the Apple Wireless Mouse and Keyboard will not open in Mac OS X 10.4."

what a catch-22!! i never upgraded to Tiger. i ordered a mac mini from apple and at the same time ordered a keyboard and mouse. the mini arrived with 10.4.4. and now i'm supposed to find someone still running 10.3.x and with bluetooth so that i can upgrade the firmware in the mouse that apple sold me with the mac mini??? i can do that, but apple is supposedly aiming this mini at the mass consumer market to be used as a media center. they seem to have missed their mark somewhat.

i didn't see anywhere in Bluetooth Explorer or elsewhere where I could see the firmware version of the keyboard or mouse. how do i query that?

Apr 6, 2006 8:06 PM in response to mtnMan

Hi again, mtnMan and Alexander, et.al. (if anyone else is reading) —

mtnMan, in response to our latest query, I don't have an answer. I was simply trying to "head you off at the pass" from trying out the K/M firmware updater unawares. (Months ago, I forced this updater to run as a test to help an Apple Discussions participant, and crashed my eMac. No big deal, but a bit startling if you're not expecting it...)

Now here are some further thoughts I'd begun drafting before seeing your follow-up...

(1) I agree — these developer tools are really aimed in a different direction, AFAIK. However, I'm still developing an understanding of the specifications and their implementation... I just thought you'd be interested in flexing what "hidden" tools there are, particularly since you'd expressed acumen with 802.11.

Btw, segueing to a slightly different topic: note that there are a few Bluetooth-related logged messages in, e.g., your system.log once in a while. As an example, you can view entries during every boot process about CSRHIDTransitionDriver (checking for a startup keyboard shortcut) while a startup volume is being sought; then IOBluetoothHIDDriver starting and seeking a handshake from your keyboard. Beyond that, I can't promise they're necessarily much help — although Bluetooth Error Codes are well defined. (See Volume 3, pp. 324-325 of the Core Specification v2.0 + EDR, if you dare dip into the 1230-pp. pdf!)

(2) My pleasure; just wish I could help more with what you seek. I recognize your objectives in this regard, and I'll keep 'em in mind — just in case I encounter an " Aha!" somewhere down the line.
(3) Perhaps I dashed off that section of my post a bit too hastily. I don't intend in any way to deny a reality that many are experiencing. (Although I hope you'll note — say, by scanning through some Bluetooth Keyboard/Mouse forum threads — that following some ~straightforward strategies to the letter are often necessary for most trouble-free Bluetooth performance. (As Alexander is fond of saying in a similar context, "Don't ask me why.") In this same vein, I've been sharing off-and-on lately this quote from a recent article by Glen Fleishman about UWB (TidBITS #819, 06-Mar-06): "Just when... you've figured out that Bluetooth can work if you perform the steps just right..."
That said — back to brass tacks. Although I'm ~an "Intel-based Mac wannabe" (jealous, but too poor), I am trying to follow the trials and tribulations as closely as I can. And to participate in exploring for solutions — though this is a lot more difficult when I can't directly test a purported "fix." By all means, the objectives of the Bluetooth SIG — and of Apple — include a relatively "transparent" interface that doesn't require a lot of ongoing tinkering by users. And, since y'all are experiencing such troubles, obviously things aren't working as they should in that regard.
Imo, you are mostly correct in re: the module firmware: no "stand-alone" updater is presently available (nor required?) for those of y'all with 2.0+EDR chips in a Mac. But — just fyi — release date isn't always as meaningful as it may intuitively seem. I bought my eMac 1.42 GHz in mid-May 2005, with CTO Bluetooth, K&M. The eMac's manufacturing date (see S/N) wasn't too far previous. Yet the Bluetooth Firmware Updater 1.2 [11/23/04] demonstrably upgraded Firmware from version 2.1241 to 2.1586. For clarity of others who may be reading, "firmware" in this case refers to software instructions residing on the Bluetooth chip, not on the Mac's ROM, etc. [Btw, I appreciate your sharing that your Bluetooth Firmware Version has changed from (?) to 0.1.17 in Software Profiler. I've been trying to keep track of these versions and changes; they're model-specific. Do you perchance recall the original version reported upon purchase?]
As I think you've guessed, my statement about "platform-independence" was meant in the context that its Bluetooth specification, chip, card, software, etc. are not a dependent variable of the Intel processor. Am I reasonably sure about this? Yes. Keep in mind that Apple began implementing Bluetooth c. 10.2.x Jaguar; adding Bluetooth v.1.2 features in 2004 and 2.0+EDR beginning January 2005. They're still "tinkering" with things — and will, I'm sure, continue to do so. If Apple's track record holds true, you can expect that they'll remain on the forefront of implementing new technologies; and they'll continue to issue OS X 10.x.x updates/improvements on a regular basis — particularly wrt Intel-based Macs' issues.
Am I absolutely sure? Nah — that'd take digging into the code — beyond my available time (and, largely, my ken). I presume that the Bluetooth software has been reworked into "Universal Binary" — but, beyond that, I've seen no mention anywhere about Apple's Bluetooth implementation being modified for Intel-based Macs. Someone in bluetooth-dev asserted that Bluetooth doesn't support Rosetta, but that was promptly refuted, and is beside the point anyway. I have used Pacifist to scan through the "MacOSXUpdateCombo 10.4.6PPC.pkg" contents; perhaps I'll try to do the same for the Mac OS X 10.4.6 Combo for Intel download one of these days... I can say that the statement about "specific fixes for the following applications and technologies [including]... using Bluetooth wireless devices" is definitely true — and I'm sorry to note that these haven't addressed your issues..
(4) Sorry to hear that your experiences with AppleCare haven't been satisfactory. When I've reached higher-level support, folks have always been great — spending their time, and pulling up schematics, etc. to ensure we were arriving at correct answers.
Perhaps you've reached a point where using BugReporter would be beneficial. (Requires free ADC membership.) If you decide to go this route, Apple provides FAQs and a "Bug-Reporting Guide" for using BugReporter. Simon Tatham's How to Report Bugs Effectively is an excellent resource. I'm reticent to "get your hopes up," but investing the necessary effort into this approach does assure that a "bug" is tracked and taken seriously. While not promised, follow-up accountability may also occur.
(5) Cool.
(6) I'm always interested in noting and following the results of direct experimentation. Unfortunately, it can sometimes be difficult to control all the variables. One example is that Bluetooth protocols within the HID profile specification differ quite a bit for keyboard vs. mouse. Btw, please understand that all of my comments have focused on Bluetooth — not AirPort. (What I said about AFH being more informational than anything else. It was intended, at least in part, to support my argument that Bluetooth was not the likeliest candidate as the source of folks' AirPort issues in some of the other threads. Sounds like you agree.)
(7) MIscellaneous stuff. We haven't really talked about what I consider "standard Bluetooth troubleshooting" — beyond the discussion about firmware. Again — Bluetooth, not (necessarily) AirPort. A few items for the moment:
(a) Have you done an evaluation of other potential sources of ~2.4 GHz RF and other interference in the environment? If not — this can become a semi-complex subject in its own right, but this KnowledgeBase article provides a starting point...
(b) In re: "sluggishness," my experience points to three factors that may be involved: "in-place" voltage, interference, &/or the driver itself. For example, I've started using SteerMouse — in part because it provides excellent tracking speed /acceleration control for my Bluetooth mouse. (Plus programmability, etc. for when I'm using my old optical mouse.)
(c) When you get a chance, take a look at the Bluetooth Troubleshooting Checklist I posted a few weeks ago. Perhaps something there will be helpful with your Bluetooth performance.
(d) In case you haven't realized, Alexander is a Bluetooth shareware developer — and all-around savvy resource...
HTH!
Regards,
Dean
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Apr 6, 2006 10:19 PM in response to Dean Pahl

you asked about the firmware version numbers. originally the profiler reported the bluetooth firmware as 0.1.16. after doing the upgrade from 10.4.5 to 10.4.6 the firmware became version 0.1.17. AND bluetooth performance seemed to improve. It was this change that made me want to have a more objective measure of bluetooth performance. But that OS upgrade did not improve the wifi issues, so when the firmware for the Intel Mini (not firmware for bluetooth) update appeared, I immediately installed that. but that seemed to have the effect of decreasing bluetooth performance. my summary is, "what 10.4.6 giveth, the firmware update taketh away."

as you suspected, Bluetooth Explorer didn't tell me what I specifically was looking for, but it was fun and it did allow me to discover that the bluetooth on my wife's PC laptop was more open than she thought. 😉

I'm a developer (mostly java stuff) and I have an ADC membership so I might try that route. But again, I wanted more objective measures of the "sluggish" bluetooth performance. Otherwise, my bug report would be rather vauge and difficult for anyone to reproduce!

other RF sources? I've done my best to eliminate such possibilities. We are temporarily living in a condo while our house is being remodeled and I don't know much about what is on the other side of the walls except that there are several wireless AP points with their default names, which indicates they are probably pretty lazy and perhaps careless users. However, prior to getting the core duo I had at various times two different ppc mac minis (still have one of them) and they BOTH perform excellently with both bluetooth and wifi from ANYWHERE in the condo. And at various times three different laptops (one Mac PPC Powerbook and two different PC laptops) have been in the condo and had no wifi problems. So it definitely is not a general interference problem but a problem that only affects the intel core duo mini. Perhaps it is more sensitive to external interference but I think this pattern suggests it is more likely to be internal interference. Nevertheless, I remain hopeful when we move back into our house next month. Although I'm anticipating a wireless world, I did have lots of ethernet run throughout when the walls were open so I will be able eventually to avoid wifi for this media mini. But cabled K&M would be unacceptable.

Thanks for the pointer to your bluetooth checklist. under the admonition, "don't ask, just do it this way because it usually helps" I'll work through all the steps. It will be instructive regardless of whether it solves the problem.

thanks again! and i promise to read Alexander's further posts with an open mind. 😉

Apr 7, 2006 12:33 AM in response to mtnMan

Hey, mtnMan!

( i ) Your experience wrt the interactions between the 04-03-06 "Mac OS X 10.4.6 Update for Intel" versus the 04-05-06 "Mac mini (early 2006) Firmware Update 1.0" are very interesting. Imho, that warrants a note to Mac OS x Feedback at a minimum. I join with you in "hoping" this doesn't represent a "cosmic joke" of juxtaposed timing...
Quietly commiserating...
( ii ) "Bluetooth Explorer didn't tell me what I specifically was looking for..." and Packet Logger seems akin to using Activity Monitor to "Sample" a process with which you're unfamiliar! Gaga x e10
I hope you realize I hadn't doubted your savvy, thoroughness, etc. — just tossing ideas about in hopes one would stick...
( iii ) I can see your issue re: filing a BugReport. But it's probably warranted (and potentially reproducible) anyway — though trying to judge statistical significance from reports in a Mac users forum is a bit like assessing an epidemic from a single emergency room visit... I'm honestly surprised I haven't seen more Ballyhoo — but AIrPort issues aren't really a focus for me —>
Oops! Just took a really quick peek around. Amazingly, things seem surprisingly quiet at the MacFixIt Internet or Cross-Platform Troubleshooting (Any OS) forum on this front — although this thread is mildly amusing...
The MacInTouch Intel Mini: AirPort and Networking Reader Reports, on the other hand, are ablaze. (And
seem to contain a nugget or two among the flames, fwiw.)
( iv ) Absolutely nothing akin to "don't ask, just do it this way because it usually helps" was intended by the link or the list. In fact, I've discussed a lot of it at great length in various threads, starting last June. If you'd like to pursue any (or many) aspect(s) in particular, go for it! I was mostly trying to provide you with a few Bluetooth-related ideas sans my usual lengthy context...
Best,
Dean
DId it snow in Boulder today (Thursday), too? (I'm "far from home," sitting here in SLC.)

Apr 7, 2006 8:17 AM in response to Dean Pahl

ℹ ok, i'll submit on Mac OS X Feedback
(ii) yeah, i need to play more with the Packet Logger. LOTS of info there. maybe this weekend
(iii) on the discussion groups. yes, i'm a statistician myself so I don't regularly read the boards to see reports on the latest ER visits. I do have greater faith in the filtering at MacFixit so when I had done enough testing to be able to describe my problem I looked there first and found nothiing. then i searched more broadly and was struck that everywhere else there seemed to be numerous reports of problems that were IDENTICAL matches to mine. find so many close matches to any of my problems had never happened before. So I decided something real was likely happening. ah, as i teach in class, the great issue in life is the S/N and it doesn't matter whether it is WiFi, BT, discussion boards, or one's boss, or politicians...

(iv) i didn't mean "don't ask, just do it..." as a caustic remark. we haven't interacted enough yet to recognize each other's styles, i think. i took your advice (via Alexander) that with BT it was often important to follow the recipe steps exactly

We had sun but some nasty wind in boulder yesterday, but your SLC storm from yesterday has arrived here. only rain in boulder (where this winter we've almost forgotten what snow is) but north of here and WY are getting clobbered.

Apr 7, 2006 9:02 AM in response to mtnMan

OK. We've used

S/N = serial number
S/N = signal-to-noise ratio.
Which made me wonder momentarily...
And I discovered that this "S/N Text: dumb type 2000" website has conjured 30+ alternatives, listed at the bottom of their web page. Perhaps "God knows" why. Science/necromancy, sense/nonsense, Shakespeare/ Newton, or synapse/nerve... anyone?
Good luck with your pursuits. Sorry I haven't been of more benefit. I look forward, nevertheless, to hearing back about your triumph in this matter before too long! Here's hoping that a "fix" arrives before a revised/new OS X 10.4.x update or an extension repair program are required.
Regards,
Dean

Apr 7, 2006 9:25 AM in response to Dean Pahl

Oh, btw: I checked the "Mac Mini (updated)" service manual available at Whoopsis. Apparently, the Mac minis available as of September 2005 — predating the Mac-Intel "early 2006" models by a bit — had an AirPort Extreme / Bluetooth 2.0+EDR combo card. It's pictured at the bottom left of p.1 (pdf p. 2) in the manual. Hitting the ➕ enlargement ad infinitum, 'twould seem to be model number A1126 or A1136. —although that could be misleading. Hard to tell from comparison to the pictures in the Mac Mini (early 2006) manual whether the cards are equivalent, but it's apparent that the new Intel-based minis didn't quite blaze this trail alone...

Apr 10, 2006 11:39 AM in response to mtnMan

mtnMan,

I was just reading today's update in MacFixIt about issues similar to yours, Intel-based Mac mini (#7): Poor AirPort performance, and noticed this comment from their editor:
"If you are experiencing slow AirPort performance from the Intel-based Mac mini, you may want to try some of the suggestions outlined in our tutorial ' Improving AirPort reception, avoiding dropouts/lost connectivity, working around card/Base station recognition issues.'"
On the "off" chance that you haven't seen this and tried their suggestions, I thought I'd post and share the link to the Sept. 2005 tutorial.
Regards,
Dean
Btw, did you play around with Packet Logger yet? I'd be interested to hear about your experience...
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Apr 29, 2006 7:36 AM in response to Dean Pahl

Apple just released a software update for keyborad performance for intel machines. Fine print says it improves reliability for keyboard and mouse. After installing, subjective performance of BT mouse is dramatically improved! Looks like it might not have been a BT-specific problem afterall. However, my wired mouse did do better, but now it also seems improved.

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testing bluetooth signal strength

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