scratchytcarrier

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Everything posted by scratchytcarrier

  1. Based on a post from a certain popular scanner mods site, without the author's or site's permission. This is all public knowledge anyways. Have phun. FM discriminator tap access Radio type: Rat Shack (GRE) PRO-97 or PRO-2055 0. This procedure is shown using the GRE Pro-97 handheld from Rat $hack. If you have the Pro-2055 tabletop unit the procedure is mostly the same since they are both the same radio, just packaged differently. The test point #4 used to access the baseband output is in a different spot on the 2055's motherboard but it is wired the same way. Depending on the type of jack you decide to use, you might be able to skip connecting a ground wire to a point on the board and use the metal chassis as your ground point instead, but I don't have a 2055 anymore and haven't tried it. 1. Prepare a 1/8" or 3/32" stereo or preferrably mono headphone (TRS) jack or a panel-mount RCA jack by soldering a piece of wire (signal) to a 10000 ohm 1/4 watt (brown-black-orange-gold) resistor. Solder the resistor to the "tip" terminal of the jack (as shown in the picture below). The article's original author used a Radio Shack part number 274-249 1/8" jack here and used blue and black wires for the signal and ground lines respectively. I (scratchytcarrier) used a RCA jack which provides a little more leeway with placement inside the radio housing. You will only have audio on the left channel if using a stereo patch cord and TRS socket unless you bridge the tip and ring terminals together with a small piece of wire. Solder another piece of wire (ground) to the "sleeve" terminal of the jack as shown above. After soldering, wrap all the terminals with electrical tape, shrink tube or pot them in epoxy or silicone sealer. 2. Remove the battery cover and battery holder. 3. Remove the four screws and lift the back cover off of the scanner. 4. Locate "TP4" (test point #4), which is a small wire pin. This is connected to pin 9 of the 3361 chip (this is the discriminator output, providing unfiltered baseband narrow FM audio). It's shown in the picture below with the blue wire attached. CAREFULLY solder a wire to TP4 or crimp it on if you can get a small enough pressure fitting like I did. 5. Now you'll need a place to connect the ground wire. I tinned the end of my ground wire and slipped it under a prong on one of the metal shields. Easy peasy. 6. Next, run the two wires through a hole in the chassis. The original author ran his through the lower right screw hole. For a more permanent connection, drill a hole through the plastic case to mount the jack. (See rebuttal in step #9.) 7. Replace the battery pack and the battery cover. 8. Secure the chassis with 3 screws (or all 4 if you drilled a new hole). 9. The original writeup specifies using the belt clip to hold the stereo jack as shown in the photo below: Rebuttal: this is not only ugly and unprofessional but also negates usage of the belt clip, so forget true portable operation if you do it this way. I drilled a hole in the housing just a little bit southeast of the computer jack when the radio is stood upright (shown near the bottom left in this photograph) and mounted mine there. This positions it just above the 24-pin header shown in the middle picture. 10. You're done. Plug one end of a patch cable, with an appropriate adapter if necessary, into the jack and the other end to the line input of that old dedicated XP box in the corner's sound blaster. Use a Y-splitter if you need to. Now go find a nice hot packet/DMR/P25/paging frequency, fire up your decoder software and go nutz. If you've only used the headphone jack for monitoring before then you will immediately notice the increase in performance, since you're getting nice undistorted, wideband audio straight off the demodulator IC (in other words, without the audio preamp, filtering, AGC and all that crap getting in the way. Yuck-oh, folks). You will also be able to use a data slicer if you have one (cough cough L0PHT cough cough). The baseband output, with the resistor, is effectively a standard 600mw 10K-ohm line-out port, so you could even connect it to an input on the stereo system or a tape recorder you wanted to. Note that the squelch (carrier and CTCSS) is not usable since that stage comes far after the discriminator, thus there will always be audio (including static) present on it. You will, however, obtain clear CTCSS or DCS tones from the discriminator output which can be useful e.g. for activating an automatic recording device, or keying the output side of an improvised repeater. EOF
  2. Came across an otherwise really nice one last saturday in the same place I found the answering machine. 1986 solid-state, cable-ready 36" stereo Mitsubishi (likely a Diamondtron). The huge-ass boxy remote had a "TEXT" button, so it must have had either a NABTS or WST-525 decoder (or closed captioned?). 3 stereo composite inputs in the back and mighta had an S-video on one. So obviously it was a top of the line set for its day. I didn't grab it. I have enough TVs now that I need another one about as much as I need to get testicular cancer. The grille on the back-top was smashed in (the set was still in too good of shape to have been vandalized, probably somebody dropped something heavy on it) and somebody had pillaged the AC cord. The latter isn't hard to fix but the smashed in grille is suspect since the back of the CRT may have gotten damaged/broken.
  3. Found in a box last saturday alongside NE 117th in Orchards with yet another television set. This one's in better shape than the one I found a couple months ago (same model). I also grabbed another GRE PRO-97 police radio from the box. Gonna discriminator tap it for 900 MHz pager snoo.., um, "digital radio service monitoring". Yeah that's it.
  4. I still have my parents' old cassette-based Phone Mate answering machine from the 80s while mother now has a very modern setup - this Panasonic "digital" thing with cordless phones, tapeless answering machine, etc., Last weekend the power went out in our area for nearly ten hours. My machine of course retained the couple of messages it had stored on its tape (a brand-new Sony C90), whereas mother ended up losing all of hers, including a rather important one of a legal nature. See, this is why you shouldn't get rid of your analog answering machine, because they don't go down when the power takes a shit!
  5. http://gbppr.dyndns.org/~gbpprorg/2600/index.html Three minutes with a search engine. This site is bizarre enough that I will not take responsibility if you end up being committed or feel like shooting yourself in the head after going there. This guy's level of insanity cannot be described in words.
  6. Was it a real honest-to-god ACTS fone or was it a COCOTized telco phortress that was programmed to operate in semi-post mode for whatever reason? (like compatibility with old switching or billing equipment that was still in place when it was COCOTized?) When you put the coin in, did you hear the red box trip? I do like the idea of the phone booth being a little closet in the back of the CO. I've only seen that one other time in my life and it was somewhere in eastern Washington or it might have even been Idaho. I think that's probably an independent-telco thing that you never would have seen Ma Bell doing if she had anything to say about it. The christmas lights are a nice nostalgic touch too. I don't think ORCHWA01DS0 has had xmas lights on it since probably U.S. West days!
  7. But I did get some nice T-carrier hum and some 2600 tweeps out of it. I called this one twice this afternoon. First time I got the music that almost talks the call down, few 2600 tweeps and it hung up, second time it rang (Argentinian ring!), couple 2600 tweeps, guy answered and spoke Spanish for a moment, hung up with 2600 and went to gateway reorder. I think I kind of like this one ;) 6843 and 9433 went to Pat Fleet CBCAD. I kind of got nostalgic for Stromberg XY days hearing that! I wouldn't be surprised by that if it's an EWSD.
  8. OOOOOOOOO!!!
  9. Reposted here for everybody's convenience from http://www.binrev.com/forums/index.php?/terms/ Forum Terms & Rules Please take a moment to review these rules detailed below. If you agree with them and wish to proceed with the registration, simply click the "Register" button below. To cancel this registration, simply hit the 'back' button on your browser. Please remember that we are not responsible for any messages posted. We do not vouch for or warrant the accuracy, completeness or usefulness of any message, and are not responsible for the contents of any message. The messages express the views of the author of the message, not necessarily the views of this bulletin board. Any user who feels that a posted message is objectionable is encouraged to contact us immediately by email. We have the ability to remove objectionable messages and we will make every effort to do so, within a reasonable time frame, if we determine that removal is necessary. 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  10. Effective immediately we will be removing, without notice, any threads or posts along the lines of "can you help me 'hack into' this that or the other thing". There's been an increase in questions from new users asking for help "hacking into" other peoples' services or devices, usually for malicious reasons. It's now worn out and continues to be basically the same recycled question. This seems to mainly be a phenomenon amongst n00bs who are confused by the concept of hacking, going only on stereotypes they've been spoon-fed by the right-wing owned commercial mass media. These threads hijack the forum and no longer have a place here. You should go back and reread the terms of use file you read and agreed to when you signed up. In fact, I'll make it convenient for you: http://www.binrev.com/forums/index.php?/terms/ Hijacking peoples' social media sites, vandalizing web pages, invading private computer systems (including other peoples' cell phones) and similar illegal activities are criminal acts and have no relationship at all to hacking. This contributes nothing positive to the forum or society and only wastes everybody's time. This behavior will not be tolerated. If you are found to violate this announcement your post will be removed and you WILL be given infraction points for spamming. We are not against discussion of this issue if it pertains to products or services you personally own, for research purposes and you state explicitly so in your post, and even then you shouldn't expect much help unless you are already a well-established and trustworthy member of the site. If you are posting with the intent of causing harm to other people then you should find another site that better suits your needs. Besides, if you are determined enough and you still think you're some sort of "hacker" because of it, then you obviously know the value of doing your own independent research. Get going. Scratchytcarrier Department Head, The Binrev Anti-Spam Corps
  11. Here it is, I knew I had that text file around somewhere. It's not actually cellular at all nor is it AMPS so I guess my memory's becoming corrupted in my old age. It sounds like it should be an odd hybrid of AMPS and IDEN though it no doubt preceded the latter by at least a generation and probably also preceded the former by some length of time. I mean, they *did* get a spacecraft into orbit years before our filthy Western capitalist bureaucracy ever did, after all. I personally have yet to hear any such communications on sat frequencies but I admit I haven't really much attention to that frequency range. (I think just the sheer novelty of hearing the Brazilian pirates ("voices from far-away places" my mother recently described it) on the lower frequencies eclipsed it. Maybe someday I'll get lucky.) Source: http://www.crypto.com/misc/uhf-sats/
  12. The Big Thing, which was their original original name (not a typo) before they recorded that. My dad had the SQ (fake quad) version of their greatest hits album (which predictably the song also appeared on) which came out a few months or so before I was born.
  13. Ooh! A spindaly-doo! Somebody gave me a Red Ranger fone like that 20+ years ago. I think I may still have it. Incoming audio quality is awful but the condenser microphone in it is so clear that my mother once told me it sounded like I was sitting there next to her, and this was long distance over narrowband T-carrier yet. Did they have any switching equipment there or was it all subscriber terminals? Thanks for the pictures dude.
  14. Somewhere in 300 MHz as I recall. There are also long-range cordless (home) telephones that operate between 250 and 390 MHz. This thread speaks of them: https://forums.radioreference.com/satcom-space-satellite-monitoring-forum/309366-251-275-conus-phone-conversation.html Brands are "Senao" and "Alcon". No doubt those also get picked up by the satellites and relayed. https://www.alibaba.com/showroom/senao-long-range-cordless-phone.html https://www.alibaba.com/product-detail/SENAO-SN-358-PLUS-Long-range_50007324096.html http://www.alconphones.com/ALCON/ I just monitor with a HT and a BNC telescoping whip. Nothing really special. I'm sure a yagi would work better but a whip is all I have right now.
  15. Strange telephone systems (from a westerner's viewpoint anyways) are pretty normal for Russia. The Soviet-era 300 MHz analog cellular system in eastern Russia and Siberia is still sometimes known to get relayed across the Pacific by the aging FLTSATCOM (maybe also UFO?) birds (essentially just simple carrier-squelch FM repeaters in space that happily relay any audio they hear as long as it falls within the transponders' passbands) along with the Brazilians on 240-270 MHz... UFO 6 Tp. 20 (255.550 MHz) (Best coast) is very popular with Brazilian pirates. Shared frequency with FLTSATCOM 8 (East coast) so there's more or less nationwide coverage. Put it in your scanner before you head off for a long road trip and monitor away. It also wouldn't hurt to know how to speak Portuguese.
  16. Wuzzup d00dz0rz. Welcome back. FYI, some of the links in your sigblock now go to foreign parking sites of questionable integrity. Might want to change them to the most recent wayback machine capture or something. At least OSP still exists. RIP Bellsmind! :cry:
  17. It was, I just merged the two together. No worries. I wonder what happened to df99 anyways? He hasn't been on here in almost 2 years! His Ardunio "mighty wurlitzer" is a really cool idea but I couldn't get one because he only provided them in kit form (don't have time or patience to assemble and configure it myself) and the one person I know locally who is adept at that stuff is a geriatric ham radio cranktard and we're not really on speaking terms with right now. Oh well, life's like that sometimes I guess.
  18. "Yes! I got Siggy going on THEIR line! (*3-3-3* *ka-chunk*) What a way to reset a trunk."
  19. Also try https://wiki.opencaching.eu/index.php/Main_Page
  20. http://wiki.opencaching.us/index.php/Main_Page tl,dr: {propaganda alert} Opencaching is the ultimate free and open international geocache site that will not only change the way you think about and approach caching, but will be the replacement for commercial and closed geocaching.com for nearly all uses, because fuck Groundspeak. Like geocaching, opencaching maintains a database of geocaches. Unlike geocaching, opencaching does not have so-called "premium" caches (meaning: unfairly restricted to all but a specific audience of "paying customers", which runs 100% contrary to the philosophy and intentions of the hobby) thus all may participate. If anybody reading this has a so-called "premium" (read: overpriced) account on groundsneak I STRONGLY advise that you look up all the so-called "premium" (read: closed) caches for your area and repost them to opencaching so all may find them, as was the intention before the bourgeoisie elite at groundsmack got hold of Garmin's original free site and turned it into the commercial payware racket we have to put up with today. This keeps the hobby fair and free (lunch and freedom) and will ultimately render GroundSLAPP unable to profit from a traditionally not-for-profit sport, rendering them completely useless (which they pretty much are already). Oh yeah and unlike Groundsnake, Opencache also has a parameter for dead drops.
  21. Yes, I had one of those in the mid or late 90s that I used as a line monitor connected to a tape recorder on my line (recording memos and such like Steve used to do with GEORGE). I got it at a yard sale somewhere for really cheap. I'd dial the number, start the tape recorder then start the monitor by throwing a "C" at it while the other end was ringing and it'd remain up until I hung my fone up. I doubt if it still works. The line it was on got hit by lightning many years ago that took out service to the entire neighborhood for 3-4 days, let the magic smoke out of a fairly expensive Sony answering machine/900 MHz full-duplex cordless thingy and royally fucked up a 2500. Besides I have real inter boxes and computers to do fone recording with these days but it's still a phun toy.
  22. Several years ago there were a couple I found in the Vancouver area. By the time I got to them the plugs were smashed and unusable so I wasn't able to do anything with them, because people have to destroy stuff. They're still there. Opencaches: I'm proud to admit I'm in that show-no-mercy subculture of cachers that "plays for keeps". :evil:
  23. Well, you know Cognitronics machines were also known to have been used at number stations...
  24. Wow, that thing to me screams "Digital" (the brand) since it kind of sounds like one of the old DEC Talker voices from way back. Notice the loud click when it cuts in and the faint carrier (?) white noise in the background, if it's a PBX (gotta be from that blastingly loud busy signal) it must be analog equipment. Ghosts of the 1ESS? Throw a 9-9-9 at it if you really want to piss it off.
  25. NTS

    http://www.nts.net/ Is this the same NTS company that operated the COCOTs that Evan and Les played with in the 80s?