Shop OBEX P1 Docs P2 Docs Learn Events
Phone line interface — Parallax Forums

Phone line interface

ArchiverArchiver Posts: 46,084
edited 2004-04-05 14:34 in General Discussion
Hello everyone!

I built the phone line interface described in the "Basic Stamp II
Applications Notes" manual (using the 600 ohm transformer, Sidactor,
zener diodes, etc).
The DTMFOUT instruction is generating tones, but the phone system
does not recognize them - I continue to get a dial tone. I stuck a
transistor in the circuit to amplify the volume slightly, but to no
avail.
I also tried varying the DTMFOUT ontime and offtime parameters -
again no luck.

Anybody have any suggestions? I am using the BS2 chip.

Comments

  • ArchiverArchiver Posts: 46,084
    edited 2004-04-01 20:12
    Does a touch tone telephone work on the telephone line you are testing the
    BS2 circuit?
    You should use the following sequence of operations. Close the relay
    contacts to make the phone circuit in an off hook state. Wait 2 seconds for
    dial tone signal from the Central Office. After dial tone signal is heard
    then you can go into a DTMF signalling mode. The circuit does work.
    Original Message
    From: "rczapala" <rczapala@y...>
    To: <basicstamps@yahoogroups.com>
    Sent: Thursday, April 01, 2004 6:52 AM
    Subject: [noparse][[/noparse]basicstamps] Phone line interface


    > Hello everyone!
    >
    > I built the phone line interface described in the "Basic Stamp II
    > Applications Notes" manual (using the 600 ohm transformer, Sidactor,
    > zener diodes, etc).
    > The DTMFOUT instruction is generating tones, but the phone system
    > does not recognize them - I continue to get a dial tone. I stuck a
    > transistor in the circuit to amplify the volume slightly, but to no
    > avail.
    > I also tried varying the DTMFOUT ontime and offtime parameters -
    > again no luck.
    >
    > Anybody have any suggestions? I am using the BS2 chip.
    >
    >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    > Yahoo! Groups Links
    >
    >
    >
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-01 21:04
    Thanks for your reply Stephen.

    Yes, touch tone phones work. After I know the BS2 has dialed, I pick
    up the phone and there is still a dial tone. If I then hit the reset
    on the stamp board, I can here the tones over the phone, but the
    dial tone remains. If I hit one of the phone buttons, the dial tone
    stops when the phone system recognizes the tone generated by the
    phone.

    I used a transformer from Digi-Key (MT4112-ND) instead of the Jameco
    (117760) but they are both 600 ohm telephone coupling transformers.

    --- In basicstamps@yahoogroups.com, "Stephen H Chapman"
    <chapman@t...> wrote:
    > Does a touch tone telephone work on the telephone line you are
    testing the
    > BS2 circuit?
    > You should use the following sequence of operations. Close the
    relay
    > contacts to make the phone circuit in an off hook state. Wait 2
    seconds for
    > dial tone signal from the Central Office. After dial tone signal
    is heard
    > then you can go into a DTMF signalling mode. The circuit does work.
    >
    Original Message
    > From: "rczapala" <rczapala@y...>
    > To: <basicstamps@yahoogroups.com>
    > Sent: Thursday, April 01, 2004 6:52 AM
    > Subject: [noparse][[/noparse]basicstamps] Phone line interface
    >
    >
    > > Hello everyone!
    > >
    > > I built the phone line interface described in the "Basic Stamp II
    > > Applications Notes" manual (using the 600 ohm transformer,
    Sidactor,
    > > zener diodes, etc).
    > > The DTMFOUT instruction is generating tones, but the phone system
    > > does not recognize them - I continue to get a dial tone. I stuck
    a
    > > transistor in the circuit to amplify the volume slightly, but to
    no
    > > avail.
    > > I also tried varying the DTMFOUT ontime and offtime parameters -
    > > again no luck.
    > >
    > > Anybody have any suggestions? I am using the BS2 chip.
    > >
    > >
    > >
    > >
    > >
    > > To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > > from the same email address that you subscribed. Text in the
    Subject and
    > Body of the message will be ignored.
    > >
    > > Yahoo! Groups Links
    > >
    > >
    > >
    > >
    > >
    > >
    > >
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-01 21:27
    The phone system does not even listen until it is activated. You will hear
    a dial tone from the central office until then. When you push a button on a
    phone, the line is interrupted and that signals the system to start
    listening for the tones. That is why your tones are being ignored.
    jim
    http://www.geocities.com/jimforkin2003/

    Original Message
    From: rczapala [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=ZRymlF6H48r061ao1_WcLSgz-TfICO0yy-f3xikA8pHPH4jWbhhKK_vDWCb-WoQ9mLImVw1Wc-nK]rczapala@y...[/url
    Sent: Thursday, April 01, 2004 9:53 AM
    To: basicstamps@yahoogroups.com
    Subject: [noparse][[/noparse]basicstamps] Phone line interface


    Hello everyone!

    I built the phone line interface described in the "Basic Stamp II
    Applications Notes" manual (using the 600 ohm transformer, Sidactor,
    zener diodes, etc).
    The DTMFOUT instruction is generating tones, but the phone system
    does not recognize them - I continue to get a dial tone. I stuck a
    transistor in the circuit to amplify the volume slightly, but to no
    avail.
    I also tried varying the DTMFOUT ontime and offtime parameters -
    again no luck.

    Anybody have any suggestions? I am using the BS2 chip.





    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.

    Yahoo! Groups Links
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-01 22:06
    Jim, using the DTMFOUT basic command is the same as touching a
    button on the phone - it generates a Dual-Tone Multi-Frequency sound
    the phone system recognizes. The first tone recognized by the system
    (i.e. the first button pushed) interrupts to dial tone and the
    system waits until a correct number of tones is heard.

    I'm not sure what you are trying to say?!?

    There are sixteen tone pairs, DT-MF (Dual-Tone Multi-Frequency):

    1 2 3 A - 697 Hz
    4 5 6 B - 770 Hz
    7 8 9 C - 852 Hz
    * 0 # D - 941 Hz
    Column-1 (i.e. 1,4,7,*) is 1209 Hz
    Column-2 (i.e. 2,5,8,0) is 1336 Hz
    Column-3 (i.e. 3,6,9,#) is 1477 Hz
    Column-4 (i.e. A,B,C,D) is 1633 Hz

    This is the 'touchtone', a 4x4 arrangement of four 'high'
    frequencies (columns) and four 'low' frequencies (rows). Therefore
    any button pressed will emit 2 tones to create the tone pair.

    i.e. pressing the button 6 will emit tones 770Hz and 1477Hz.


    --- In basicstamps@yahoogroups.com, "Jim Forkin" <jjf@p...> wrote:
    > The phone system does not even listen until it is activated. You
    will hear
    > a dial tone from the central office until then. When you push a
    button on a
    > phone, the line is interrupted and that signals the system to start
    > listening for the tones. That is why your tones are being ignored.
    > jim
    > http://www.geocities.com/jimforkin2003/
    >
    >
    >
    Original Message
    > From: rczapala [noparse][[/noparse]mailto:rczapala@y...]
    > Sent: Thursday, April 01, 2004 9:53 AM
    > To: basicstamps@yahoogroups.com
    > Subject: [noparse][[/noparse]basicstamps] Phone line interface
    >
    >
    > Hello everyone!
    >
    > I built the phone line interface described in the "Basic Stamp II
    > Applications Notes" manual (using the 600 ohm transformer,
    Sidactor,
    > zener diodes, etc).
    > The DTMFOUT instruction is generating tones, but the phone system
    > does not recognize them - I continue to get a dial tone. I stuck a
    > transistor in the circuit to amplify the volume slightly, but to no
    > avail.
    > I also tried varying the DTMFOUT ontime and offtime parameters -
    > again no luck.
    >
    > Anybody have any suggestions? I am using the BS2 chip.
    >
    >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the
    Subject and
    > Body of the message will be ignored.
    >
    > Yahoo! Groups Links
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-01 23:18
    I have done this stuff last week; it was working fine with me however I had
    same problem. So, I guess you need to take the serial capacitor out from the
    circuit. Also, I didn't use the Sidactor in the circuit.

    Foz


    >From: "rczapala" <rczapala@y...>
    >Reply-To: basicstamps@yahoogroups.com
    >To: basicstamps@yahoogroups.com
    >Subject: [noparse][[/noparse]basicstamps] Phone line interface
    >Date: Thu, 01 Apr 2004 14:52:39 -0000
    >
    >Hello everyone!
    >
    >I built the phone line interface described in the "Basic Stamp II
    >Applications Notes" manual (using the 600 ohm transformer, Sidactor,
    >zener diodes, etc).
    >The DTMFOUT instruction is generating tones, but the phone system
    >does not recognize them - I continue to get a dial tone. I stuck a
    >transistor in the circuit to amplify the volume slightly, but to no
    >avail.
    >I also tried varying the DTMFOUT ontime and offtime parameters -
    >again no luck.
    >
    >Anybody have any suggestions? I am using the BS2 chip.
    >
    >
    >
    >
    >
    >To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    >from the same email address that you subscribed. Text in the Subject and
    >Body of the message will be ignored.
    >
    >Yahoo! Groups Links
    >
    >
    >
    >
    >

    _________________________________________________________________
    MSN Toolbar provides one-click access to Hotmail from any Web page – FREE
    download! http://toolbar.msn.com/go/onm00200413ave/direct/01/
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-02 01:04
    Hi Foz.
    I tried omitting the serial capacitor and I tried using a 10
    microfarad electrolytic cap instead.
    The interesting thing is that I used a telephone recording device
    and examined the generated tones in Nero Wave Editor. The tones from
    the phone are well defined and regular - the tones from the basic
    chip are ragged and irregular - the peaks and valleys vary - looks
    like noise.
    I tried a different BS2 stamp and got the same result.
    I also tried FREQOUT commands instead of DMTFOUT - same story.

    FREQOUT 6,200,770,1336 '5
    PAUSE 50
    FREQOUT 6,200,852,1336 '8
    PAUSE 50
    FREQOUT 6,200,770,1336 '5
    etc...

    --- In basicstamps@yahoogroups.com, "Fawzi Radwan" <fradwan555@h...>
    wrote:
    >
    > I have done this stuff last week; it was working fine with me
    however I had
    > same problem. So, I guess you need to take the serial capacitor
    out from the
    > circuit. Also, I didn't use the Sidactor in the circuit.
    >
    > Foz
    >
    >
    > >From: "rczapala" <rczapala@y...>
    > >Reply-To: basicstamps@yahoogroups.com
    > >To: basicstamps@yahoogroups.com
    > >Subject: [noparse][[/noparse]basicstamps] Phone line interface
    > >Date: Thu, 01 Apr 2004 14:52:39 -0000
    > >
    > >Hello everyone!
    > >
    > >I built the phone line interface described in the "Basic Stamp II
    > >Applications Notes" manual (using the 600 ohm transformer,
    Sidactor,
    > >zener diodes, etc).
    > >The DTMFOUT instruction is generating tones, but the phone system
    > >does not recognize them - I continue to get a dial tone. I stuck a
    > >transistor in the circuit to amplify the volume slightly, but to
    no
    > >avail.
    > >I also tried varying the DTMFOUT ontime and offtime parameters -
    > >again no luck.
    > >
    > >Anybody have any suggestions? I am using the BS2 chip.
    > >
    > >
    > >
    > >
    > >
    > >To UNSUBSCRIBE, just send mail to:
    > > basicstamps-unsubscribe@yahoogroups.com
    > >from the same email address that you subscribed. Text in the
    Subject and
    > >Body of the message will be ignored.
    > >
    > >Yahoo! Groups Links
    > >
    > >
    > >
    > >
    > >
    >
    > _________________________________________________________________
    > MSN Toolbar provides one-click access to Hotmail from any Web
    page – FREE
    > download! http://toolbar.msn.com/go/onm00200413ave/direct/01/
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-02 05:31
    Here is someting for you to try. Try switching the polarity of the 2
    phone wires (Tip and Ring). I notice sometimes that on some touch
    tone phones (Cheap pieces of junk), they will exhibit the same
    problem you are experiencing. I will get a dial tone but when I press
    any buttons to dial out, it fails to "Break" dial tone. When I
    switched the polarity of the two main phone wires it then worked
    correctly.

    Ted

    --- In basicstamps@yahoogroups.com, "Ron Czapala" <rczapala@y...>
    wrote:
    > Hi Foz.
    > I tried omitting the serial capacitor and I tried using a 10
    > microfarad electrolytic cap instead.
    > The interesting thing is that I used a telephone recording device
    > and examined the generated tones in Nero Wave Editor. The tones
    from
    > the phone are well defined and regular - the tones from the basic
    > chip are ragged and irregular - the peaks and valleys vary - looks
    > like noise.
    > I tried a different BS2 stamp and got the same result.
    > I also tried FREQOUT commands instead of DMTFOUT - same story.
    >
    > FREQOUT 6,200,770,1336 '5
    > PAUSE 50
    > FREQOUT 6,200,852,1336 '8
    > PAUSE 50
    > FREQOUT 6,200,770,1336 '5
    > etc...
    >
    > --- In basicstamps@yahoogroups.com, "Fawzi Radwan"
    <fradwan555@h...>
    > wrote:
    > >
    > > I have done this stuff last week; it was working fine with me
    > however I had
    > > same problem. So, I guess you need to take the serial capacitor
    > out from the
    > > circuit. Also, I didn't use the Sidactor in the circuit.
    > >
    > > Foz
    > >
    > >
    > > >From: "rczapala" <rczapala@y...>
    > > >Reply-To: basicstamps@yahoogroups.com
    > > >To: basicstamps@yahoogroups.com
    > > >Subject: [noparse][[/noparse]basicstamps] Phone line interface
    > > >Date: Thu, 01 Apr 2004 14:52:39 -0000
    > > >
    > > >Hello everyone!
    > > >
    > > >I built the phone line interface described in the "Basic Stamp II
    > > >Applications Notes" manual (using the 600 ohm transformer,
    > Sidactor,
    > > >zener diodes, etc).
    > > >The DTMFOUT instruction is generating tones, but the phone system
    > > >does not recognize them - I continue to get a dial tone. I stuck
    a
    > > >transistor in the circuit to amplify the volume slightly, but to
    > no
    > > >avail.
    > > >I also tried varying the DTMFOUT ontime and offtime parameters -
    > > >again no luck.
    > > >
    > > >Anybody have any suggestions? I am using the BS2 chip.
    > > >
    > > >
    > > >
    > > >
    > > >
    > > >To UNSUBSCRIBE, just send mail to:
    > > > basicstamps-unsubscribe@yahoogroups.com
    > > >from the same email address that you subscribed. Text in the
    > Subject and
    > > >Body of the message will be ignored.
    > > >
    > > >Yahoo! Groups Links
    > > >
    > > >
    > > >
    > > >
    > > >
    > >
    > > _________________________________________________________________
    > > MSN Toolbar provides one-click access to Hotmail from any Web
    > page – FREE
    > > download! http://toolbar.msn.com/go/onm00200413ave/direct/01/
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-02 06:07
    The fact you are not breaking dial tone with the BS2 interface means the
    Central Office did not hear your DTMF signals, or invalid digits were
    received and ignored by the CO DTMF register. Dial tone is removed from the
    line after the first digit is received in the register. A requirement of the
    transformer you selected is the winding facing the CO line should be able
    to accept 20 ma to 100 ma of line current and not have the transformer
    inductance saturate because of the DC line current.
    A requirement of the CO register for DTMF signals is to have the DTMF tone
    present for a minimum of 40 millisecond and then a interdigital 40 ms
    silent interval.
    It is necessary to use the .001uf capacitor across the transformer secondary
    to bypass the high frequency components. Hope this helps.
    Original Message
    From: "rczapala" <rczapala@y...>
    To: <basicstamps@yahoogroups.com>
    Sent: Thursday, April 01, 2004 12:04 PM
    Subject: [noparse][[/noparse]basicstamps] Re: Phone line interface


    > Thanks for your reply Stephen.
    >
    > Yes, touch tone phones work. After I know the BS2 has dialed, I pick
    > up the phone and there is still a dial tone. If I then hit the reset
    > on the stamp board, I can here the tones over the phone, but the
    > dial tone remains. If I hit one of the phone buttons, the dial tone
    > stops when the phone system recognizes the tone generated by the
    > phone.
    >
    > I used a transformer from Digi-Key (MT4112-ND) instead of the Jameco
    > (117760) but they are both 600 ohm telephone coupling transformers.
    >
    > --- In basicstamps@yahoogroups.com, "Stephen H Chapman"
    > <chapman@t...> wrote:
    > > Does a touch tone telephone work on the telephone line you are
    > testing the
    > > BS2 circuit?
    > > You should use the following sequence of operations. Close the
    > relay
    > > contacts to make the phone circuit in an off hook state. Wait 2
    > seconds for
    > > dial tone signal from the Central Office. After dial tone signal
    > is heard
    > > then you can go into a DTMF signalling mode. The circuit does work.
    > >
    Original Message
    > > From: "rczapala" <rczapala@y...>
    > > To: <basicstamps@yahoogroups.com>
    > > Sent: Thursday, April 01, 2004 6:52 AM
    > > Subject: [noparse][[/noparse]basicstamps] Phone line interface
    > >
    > >
    > > > Hello everyone!
    > > >
    > > > I built the phone line interface described in the "Basic Stamp II
    > > > Applications Notes" manual (using the 600 ohm transformer,
    > Sidactor,
    > > > zener diodes, etc).
    > > > The DTMFOUT instruction is generating tones, but the phone system
    > > > does not recognize them - I continue to get a dial tone. I stuck
    > a
    > > > transistor in the circuit to amplify the volume slightly, but to
    > no
    > > > avail.
    > > > I also tried varying the DTMFOUT ontime and offtime parameters -
    > > > again no luck.
    > > >
    > > > Anybody have any suggestions? I am using the BS2 chip.
    > > >
    > > >
    > > >
    > > >
    > > >
    > > > To UNSUBSCRIBE, just send mail to:
    > > > basicstamps-unsubscribe@yahoogroups.com
    > > > from the same email address that you subscribed. Text in the
    > Subject and
    > > Body of the message will be ignored.
    > > >
    > > > Yahoo! Groups Links
    > > >
    > > >
    > > >
    > > >
    > > >
    > > >
    > > >
    >
    >
    >
    >
    > To UNSUBSCRIBE, just send mail to:
    > basicstamps-unsubscribe@yahoogroups.com
    > from the same email address that you subscribed. Text in the Subject and
    Body of the message will be ignored.
    >
    > Yahoo! Groups Links
    >
    >
    >
    >
    >
    >
    >
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-02 20:45
    Thanks for your reply Ted. I swapped the transformer with one from
    RadioShack and it works fine now!
    - Ron

    --- In basicstamps@yahoogroups.com, "Ted Ham" <tedhamii@h...> wrote:
    >
    > Here is someting for you to try. Try switching the polarity of
    the 2
    > phone wires (Tip and Ring). I notice sometimes that on some touch
    > tone phones (Cheap pieces of junk), they will exhibit the same
    > problem you are experiencing. I will get a dial tone but when I
    press
    > any buttons to dial out, it fails to "Break" dial tone. When I
    > switched the polarity of the two main phone wires it then worked
    > correctly.
    >
    > Ted
    >
    > --- In basicstamps@yahoogroups.com, "Ron Czapala" <rczapala@y...>
    > wrote:
    > > Hi Foz.
    > > I tried omitting the serial capacitor and I tried using a 10
    > > microfarad electrolytic cap instead.
    > > The interesting thing is that I used a telephone recording
    device
    > > and examined the generated tones in Nero Wave Editor. The tones
    > from
    > > the phone are well defined and regular - the tones from the
    basic
    > > chip are ragged and irregular - the peaks and valleys vary -
    looks
    > > like noise.
    > > I tried a different BS2 stamp and got the same result.
    > > I also tried FREQOUT commands instead of DMTFOUT - same story.
    > >
    > > FREQOUT 6,200,770,1336 '5
    > > PAUSE 50
    > > FREQOUT 6,200,852,1336 '8
    > > PAUSE 50
    > > FREQOUT 6,200,770,1336 '5
    > > etc...
    > >
    > > --- In basicstamps@yahoogroups.com, "Fawzi Radwan"
    > <fradwan555@h...>
    > > wrote:
    > > >
    > > > I have done this stuff last week; it was working fine with me
    > > however I had
    > > > same problem. So, I guess you need to take the serial
    capacitor
    > > out from the
    > > > circuit. Also, I didn't use the Sidactor in the circuit.
    > > >
    > > > Foz
    > > >
    > > >
    > > > >From: "rczapala" <rczapala@y...>
    > > > >Reply-To: basicstamps@yahoogroups.com
    > > > >To: basicstamps@yahoogroups.com
    > > > >Subject: [noparse][[/noparse]basicstamps] Phone line interface
    > > > >Date: Thu, 01 Apr 2004 14:52:39 -0000
    > > > >
    > > > >Hello everyone!
    > > > >
    > > > >I built the phone line interface described in the "Basic
    Stamp II
    > > > >Applications Notes" manual (using the 600 ohm transformer,
    > > Sidactor,
    > > > >zener diodes, etc).
    > > > >The DTMFOUT instruction is generating tones, but the phone
    system
    > > > >does not recognize them - I continue to get a dial tone. I
    stuck
    > a
    > > > >transistor in the circuit to amplify the volume slightly, but
    to
    > > no
    > > > >avail.
    > > > >I also tried varying the DTMFOUT ontime and offtime
    parameters -
    > > > >again no luck.
    > > > >
    > > > >Anybody have any suggestions? I am using the BS2 chip.
    > > > >
    > > > >
    > > > >
    > > > >
    > > > >
    > > > >To UNSUBSCRIBE, just send mail to:
    > > > > basicstamps-unsubscribe@yahoogroups.com
    > > > >from the same email address that you subscribed. Text in the
    > > Subject and
    > > > >Body of the message will be ignored.
    > > > >
    > > > >Yahoo! Groups Links
    > > > >
    > > > >
    > > > >
    > > > >
    > > > >
    > > >
    > > >
    _________________________________________________________________
    > > > MSN Toolbar provides one-click access to Hotmail from any Web
    > > page – FREE
    > > > download! http://toolbar.msn.com/go/onm00200413ave/direct/01/
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-02 22:30
    EXCUSE CAPS

    COMMERCIAL DAA (DATA ACCESS ARAINGMENT) WITH FCC APPROVAL.

    CHEEPEST I HAVE FOUND IS FOLLOWING. ABOUT $40 & S&H

    http://www.broadcastboxes.com/mpc-2.html

    BY CIRCUIT WERKES IN FLORIDA

    INSTRUCTIONS AND DRAWINGS AVAILABLE ON THEIR WEB SITE.

    73
    SPENCE
    K4KEP
  • ArchiverArchiver Posts: 46,084
    edited 2004-04-05 14:34
    Spence,

    I was, also, interested in a DAA, but for wireless phones. Do you know
    of any helpful web sites?

    Thanks, John

    On 2 Apr 2004 at 16:30, BOYD S.(SPENCE) MINER wrote:

    EXCUSE CAPS

    COMMERCIAL DAA (DATA ACCESS ARAINGMENT) WITH FCC APPROVAL.

    CHEEPEST I HAVE FOUND IS FOLLOWING. ABOUT $40 & S&H

    http://www.broadcastboxes.com/mpc-2.html

    BY CIRCUIT WERKES IN FLORIDA

    INSTRUCTIONS AND DRAWINGS AVAILABLE ON THEIR WEB SITE.

    73
    SPENCE
    K4KEP





    To UNSUBSCRIBE, just send mail to:
    basicstamps-unsubscribe@yahoogroups.com
    from the same email address that you subscribed. Text in the Subject and Body
    of the message will be ignored.

    Yahoo! Groups Links
Sign In or Register to comment.