--------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1V00000 Date: 01/25/98 From: ROY WITT Time: 10:16am \/To: BRUCE BILSON (Read 1 times) Subj: PRO-2026 tape out 24 Jan 98 13:20, Bruce Bilson said this about PRO-2026 tape out to All. BB> Where is a good point to tap the circuit of a PRO-2026 to make a BB> dedicated tape recorder output? Thanks! The external speaker jack. By using a circuit board already in existence, you can tap off the audio and start/stop the recorder at the same time with this circuit. You can obtain the board for $4 plus $1.5 shipping and handling from; FAR Circuits. 18N640 Field Court Dundee, IL. 60118 If they don't have it anymore, I've got a few lying around I'll sell for the same price.. --- T(W)itt Filter Tossed v1.13 * Origin: Moosle Beach Brothel, Moosle Beach, CA (1:202/909.13) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1W00000 Date: 01/26/98 From: SCOTT CHRISTENSEN Time: 05:04am \/To: BRUCE BILSON (Read 1 times) Subj: RE: PRO-2026 tape out Bruce Bilson writes in a message to All BB> Where is a good point to tap the circuit of a PRO-2026 to make BB> a dedicated tape recorder output? Thanks! Top of the volume control, the bottom of the control is ground. --- COUNTERPoint 2.3 * Origin: MacRefuge * 612-426-6687 * (1:282/24) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1W00001 Date: 01/26/98 From: SCOTT CHRISTENSEN Time: 05:07am \/To: ROY WITT (Read 1 times) Subj: RE: PRO-2026 tape out Roy Witt writes in a message to Bruce Bilson RW> The external speaker jack. By using a circuit board already RW> in existence, you can tap off the audio and start/stop the RW> recorder at the same time with this circuit. Yikes! That means that the volume control affects the level of the audio and you lose the speaker. You also get any distortion and noise generated in the audio stages after the volume control. --- COUNTERPoint 2.3 * Origin: MacRefuge * 612-426-6687 * (1:282/24) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1W00002 Date: 01/22/98 From: BOB MORGAN Time: 08:06am \/To: BILL JONES (Read 1 times) Subj: Used, unblocked, scanners. While doing the Macarena Bill Jones said to Wes Price: BJ> bander.com on the internet out of finland sells unblocked BJ> scanners..and they take us credit cards. I remember Radio Shack selling a scanner that went all the way up to 1.3 Ghz. Apparently they don't sell that anymore. Is it because of the upper military freqs? BJ> ! Origin: The Tradin' Post - Abilene, Tx (915) 676-2799 (1:392/1) I used to live in Abilene and actually liked it. Had some good times there. Lived on E N 13th. Bob ... Javacise: burst of motion after spilling coffee in one's lap. --- Blue Wave/Max v2.30 * Origin: Hermes BBS The Messenger Bryan Tx (409)823-4442 (1:117/110) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1X00000 Date: 01/27/98 From: ROY WITT Time: 01:10pm \/To: SCOTT CHRISTENSEN (Read 1 times) Subj: PRO-2026 tape out Hello Scott. 26 Jan 98 05:07, Scott Christensen wrote to Roy Witt: SC> Roy Witt writes in a message to Bruce Bilson SC> RW>> The external speaker jack. By using a circuit board already RW>> in existence, you can tap off the audio and start/stop the RW>> recorder at the same time with this circuit. SC> SC> Yikes! That means that the volume control affects the level of the SC> audio and you lose the speaker. You also get any distortion and noise SC> generated in the audio stages after the volume control. The question was, the "easiest" place to pick off the audio...When was the last time you opened a scanner and found places big enough for your soldering iron to work? On the above mentioned board, there's a pot to control volume to an external speaker, so I see no reason why one would lose the audio or speaker as you say. How much noise or distortion do you normally find in an FM transmission that will affect your capability to understand it? Biggest question I have: Why would you want to take a chance of destroying a $300+ radio, when you can do that with a project board? ... If you call me insane again, I'll eat your OTHER eye! * Origin: KB6PI * HAM-ECHO Moderator * San Diego, CA * (1:202/909.10) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1Y00000 Date: 01/28/98 From: SCOTT CHRISTENSEN Time: 05:40am \/To: ROY WITT (Read 2 times) Subj: RE: PRO-2026 tape out Roy Witt writes in a message to Scott Christensen SC> Roy Witt writes in a message to Bruce Bilson SC> RW>> The external speaker jack. By using a circuit board already RW>> in existence, you can tap off the audio and start/stop the RW>> recorder at the same time with this circuit. SC> SC> Yikes! That means that the volume control affects the level of the SC> audio and you lose the speaker. You also get any distortion and noise SC> generated in the audio stages after the volume control. RW> The question was, the "easiest" place to pick off the audio...When RW> was the last time you opened a scanner and found places big RW> enough for your soldering iron to work? On the above mentioned RW> board, there's a pot to control volume to an external speaker, RW> so I see no reason why one would lose the audio or speaker RW> as you say. How much noise or distortion do you normally find RW> in an FM transmission that will affect your capability to understand RW> it? Now you're changing your story. I originally said to take the audio at the top of the volume control. This is almost always an easy place to find - unless the radio has a digitally controlled audio level like some TVs and commercial 2-way radios. You suggested the earphone jack. This would work, but you would have to monitor through the recorder. You also pick up all of the noise and distortion generated in the audio output stages of the scanner. These stages tend to be quite bad for noise. The noise and distortion *I* was talking about was in the audio PA, which you can avoid, as opposed to the stuff generated in the transmitter and receiver up to the discriminator - which little can be done to fix, except to redesign the radios. --- COUNTERPoint 2.3 * Origin: MacRefuge * 612-426-6687 * (1:282/24) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1Y00001 Date: 01/28/98 From: FRANK GLOVER Time: 09:27pm \/To: BOB MORGAN (Read 2 times) Subj: Used, unblocked, scanners. BM> I remember Radio Shack selling a scanner that went all the way up to BM> 1.3 Ghz. Apparently they don't sell that anymore. Is it because of BM> the upper military freqs? Several of their desktop scanners do. You might mean the Pro-26 handheld. No longer made, and all the handhelds in the catalog don't go that high anymore. (I know...my Pro-26 was recently stolen.) They don't have TV-FM broadcast reception either, like the 26 did. A friend at a local RS told me last year that the model had been recalled, but it wasn't clear why. I've never heard of a cellular mod for it. Mine performed just fine. I only wished it had 300 or more, rather than 200 channels. No other complaints. Frank --- Maximus 2.01wb * Origin: The Shack TOO * Mike Ward - Sysop * (716)288-5848 (1:2613/150) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1Z00000 Date: 01/29/98 From: ROY WITT Time: 08:14am \/To: SCOTT CHRISTENSEN (Read 2 times) Subj: PRO-2026 tape out Hello Scott. 28 Jan 98 05:40, Scott Christensen wrote to Roy Witt: SC> Roy Witt writes in a message to Scott Christensen SC> SC>> Roy Witt writes in a message to Bruce Bilson SC>> RW>>> The external speaker jack. By using a circuit board already RW>>> in existence, you can tap off the audio and start/stop the RW>>> recorder at the same time with this circuit. SC>> SC>> Yikes! That means that the volume control affects the level of SC>> the audio and you lose the speaker. You also get any distortion SC>> and noise generated in the audio stages after the volume control. RW>> The question was, the "easiest" place to pick off the RW>> audio...When was the last time you opened a scanner and found RW>> places big enough for your soldering iron to work? On the above RW>> mentioned board, there's a pot to control volume to an external RW>> speaker, so I see no reason why one would lose the audio or RW>> speaker as you say. How much noise or distortion do you normally RW>> find in an FM transmission that will affect your capability to RW>> understand it? SC> SC> Now you're changing your story. I originally said to take the audio SC> at the top of the volume control. This is almost always an easy place SC> to find Where do you see I've changed the story? Surely you jest. Opening a radio to look at the innards is one thing, poking around with a soldering iron is another. Even if one could see the pot, modifying the radio in lieu of merely plugging in a board made for the application is ludicrous.. Not to mention the radio is suspect in any future resale transaction... SC> - unless the radio has a digitally controlled audio level like SC> some TVs and commercial 2-way radios. SC> SC> You suggested the earphone jack. This would work, but you would have SC> to monitor through the recorder. Nope. The board I mentioned as a jack for an external speaker. Make it what you want...I use a 6" Motorola external. And, I have no problem with distortion that you alude to. It works just fine.. ... Colossol pervert! No form of sexual depravity is too low! * Origin: KB6PI * HAM-ECHO Moderator * San Diego, CA * (1:202/909.10) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F1^00000 Date: 01/30/98 From: SCOTT CHRISTENSEN Time: 06:19am \/To: ROY WITT (Read 2 times) Subj: RE: PRO-2026 tape out Roy Witt writes in a message to Scott Christensen RW> Surely you jest. Opening a radio to look at the innards is RW> one thing, poking around with a soldering iron is another. RW> Even if one could see the pot, modifying the radio in lieu RW> of merely plugging in a board made for the application is ludicrous.. RW> Not to mention the radio is suspect in any future resale transaction... Item: It's no big deal to tack a couple of wires onto the volume control. Item: How many scanners are ever resold? (As opposed to worn out or so old as to be useless and trashed?) Item: Do what you wish, I'll do it my way. --- COUNTERPoint 2.3 * Origin: MacRefuge * 612-426-6687 * (1:282/24) --------------- FIDO MESSAGE AREA==> TOPIC: 154 SCANNERS Ref: F2100000 Date: 01/29/98 From: BILL CLARK Time: 03:57am \/To: ALL (Read 2 times) Subj: Frequency Guides I'm wanting to know what the frequencies used are in the USA for scanners re mobile phone frequencies. From what i've read it seems that most scanners are blocked from those frequencies. What are they. Here in the UK, mobile phones can be forund between 800 and 820mhz and again between 890mhz and 950mhz. Heres a list of frequency allocations in the UK. 85-88mhz low band PMR mainly water, electric companys and the RAC 88-108 Broadcast 108-136 Aircraft (a.m) 136-140 Military 140-144 Outside broadcast studio links for TV and radio 144-146 2m Amateur band 146-156 Police, fire 156-163 Marine 163-173 PMR mainly Taxis, railways, ambulances, 173-176 Low power entertainers radio mics 451-453 Police hand held radios 453-459 UHF PMR mainly security firms 460-462 Low power 2 way radios 30-50mhz Military. Can anyone fill the gaps here with the following. What frequencies are the following on. Local Police using Hand Held Units________________ Local Police vehicles and HQ_________________ Fire___________________ Ambulance_________________ Taxi companys__________________ What are the following bands used for 30-50mhz 50-80mhz 80-88mhz 88-108mhz 108-136mhz 136-140mhz 140-150mhz 150-156mhz 156-163mhz 163-173mhz 173-175mhz 175-400mhz 400-450mhz 451-453mhz 453-460mhz I'm just wandering how the USA differs to the UK in frequuencies. I'm looking for relies from all areas especially Canada and also if possible Australia and New Zealand and Europe. Bill Clark. --- Spot 1.3a #1660 * Origin: email bill.clark@ukonline.co.uk (2:257/137.9)