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1994-11-14
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Date: Mon, 22 Aug 94 04:30:38 PDT
From: Ham-Equip Mailing List and Newsgroup <ham-equip@ucsd.edu>
Errors-To: Ham-Equip-Errors@UCSD.Edu
Reply-To: Ham-Equip@UCSD.Edu
Precedence: Bulk
Subject: Ham-Equip Digest V94 #296
To: Ham-Equip
Ham-Equip Digest Mon, 22 Aug 94 Volume 94 : Issue 296
Today's Topics:
Comapre Kenwood 78A and 79A - Please?
Does ICOM 2700 exist?
TM-733 External DTMF Control (Updated)
What is radio Cloning?
Send Replies or notes for publication to: <Ham-Equip@UCSD.Edu>
Send subscription requests to: <Ham-Equip-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Equip Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-equip".
We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: 22 Aug 1994 03:49:01 -0400
From: newstf01.cr1.aol.com!search01.news.aol.com!not-for-mail@uunet.uu.net
Subject: Comapre Kenwood 78A and 79A - Please?
To: ham-equip@ucsd.edu
In article <herbrCuwLGE.n41@netcom.com>, herbr@netcom.com (Herb Rosenberg)
writes:
* compare 'em
78A 250 CHANNELS MAX, 79A 80 CHANNELS MAX
79A DOES NOT HAVE THE ABILITY TO LOCKOUT A CHANNEL WHEN SCANNING
79A HAS BUILT IN HELP
------------------------------
Date: Mon, 22 Aug 1994 03:53:26 GMT
From: pacbell.com!att-out!nntpa!not-for-mail@decwrl.dec.com
Subject: Does ICOM 2700 exist?
To: ham-equip@ucsd.edu
Does the ICOM dual bander 2m/70cm, IC-2700 actually exist.
I've never, ever seen a posting here mentioning it.
Does anybody have one? How is it?
------------------------------
Date: 21 Aug 1994 23:47 CDT
From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!howland.reston.ans.net!swrinde!news.uh.edu!elroy.uh.edu!st3qi@network.ucsd.edu
Subject: TM-733 External DTMF Control (Updated)
To: ham-equip@ucsd.edu
Here is an update on Steve's post on the 733's External DTMF Control.
Note that this message concerns the control of the 733 via an HT, and not
the microphone of the 733.)
I found everything to work as Steve described except three things.
(1) I could not return to "stanby mode" by pressing "A#".
(2) To return the radio to normal operation, I only had to do the
"disable sequence" once, not twice.
(3) I also found that the remote DTMF control functions did not match
those found on page 81 of the manual. When in "External DTMF
control", the chart changes a little. The new chart is below.
Refer to this chart when using the TM-733 in "External DTMF Control".
1 2 3 A
T.ALT ON TONE ON CTCSS ON ENTER
4 5 6 B
T.ALT OFF TONE OFF CTCSS OFF TONE SELECT
7 8 9 C
CALL VFO MEMORY CROSS BAND?
* 0 # D
DOWN POWER LEVEL UP CANCEL
There are no "shifted" functions. Just one function per button.
After you hit "B" for TONE SELECT, press * or # to go up or down,
and same is true when in VFO mode or in MEMORY mode.
Tones 7, 8, and 9 mimic the three buttons at the top of the 733 mic.
I found hitting "C" changes the display to look like it is in cross-band
repeat mode (dots between 100KHz, 10KHz, and 1KHz digits), but the
radio does not actually cross band repeat. I've tried several things
to make it cross band repeat, but could not get it to work.
I've personally concluded that "External DTMF Control" is pretty useless.
I think if it could be used in conjunction with the cross band repeat
mode, the radio would then be a frequency agile remote base (like the 732).
Here is Steve's report (with my additions/corrections) if you missed it:
- Pick a UHF control frequency.
- Turn on the UHF DTSS function and select a tone sequence. (p. 89)
- Turn the UHF DTSS function back off.
- Press Band Select to move to the VHF band.
- Turn OFF the radio, press and hold [CONT SEL] while turning the radio
back on, then release [CONT SEL]. The S-meter scale and the DT
indicators for the UHF band will begin flashing. The LOCK indicator
will turn ON, and most front-panel keys (except PWR) will be disabled.
- To begin remote control, you should key the external radio and
press the following key sequency: "Axxx#" where "xxx" is the preset
DTSS code selected earlier.
- If the proper code is received by the 733, the beeper will sound and
the "DT" indicator will stop flashing. The radio can now be
remote-controlled, using the function chart above.
- ???? To return to standby mode, press "A#" on the remote radio. ?????
- To return the radio to normal operation, turn the radio off, then
press and hold [CONT SEL] while turning the radio back on.
Note: While you're in "External DTMF Control", key the 733's mic and
listen to the transmitted audio while pressing some DTMF tones...
and Steve thought they sounded bad while in "DTMF Feedback Mode"!!!
That's all for now!
--
Brad A. Killebrew N5LJV, EMT-B | Student of Computer Engr Technology
President, University of Houston ARC | University of Houston, Texas
Internet: st3qi@jetson.uh.edu | U of H Amateur Radio Club WB5FND
AMPRnet : n5ljv@sugarland.ampr.org | uharc@post-office.uh.edu
Packet : n5ljv@f6cnb.#setx.tx.usa.na | Box 85-T2, 4800 Calhoun, 77204-4083
AT&Tnet : 713-852-8523 Fax 852-2630 | For info, finger st3qi@jetson.uh.edu
------------------------------
Date: Mon, 22 Aug 1994 09:16:13 GMT
From: ihnp4.ucsd.edu!library.ucla.edu!csulb.edu!csus.edu!netcom.com!linley@network.ucsd.edu
Subject: What is radio Cloning?
To: ham-equip@ucsd.edu
In ye olden post hamilton@BIX.com (hamilton on BIX) spake...
>herbr@netcom.com (Herb Rosenberg) writes:
>
>>Would someone out there expalining to be what radio cloning is and why is
>>it important? Can all radios be cloned? Is this an important buying
>>consideration? Does the radio need to be modified to be clonable?
>
>The only use of the term cloning I've heard with regard to any kind
>of radio gear refers to the (very illegal!) practice of modifying a
>cellular phone so it appears (to the cellular provider) to be a
>different phone.
No no no!!! Radios like the Kenwood TH-78A and others can copy their memories
over the air into other radios of the same brand. It's useful when you have
a group of people at an event and want to set up a number of channels for
everyone to use. Too bad there's no standard data format for cloning, though.
It's a good idea but doesn't work unless everyone has the same radio.
--
Bruce James Robert Linley ---- linley@netcom.com ---- Amateur radio: KE6EQZ
=-=-=-=-=-=-=-=-=-=-=-= "This is glue. Strong stuff." =-=-=-=-=-=-=-=-=-=-=-=-=
------------------------------
End of Ham-Equip Digest V94 #296
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