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- Date: Thu, 23 Jun 94 14:33:29 PDT
- From: Info-Hams Mailing List and Newsgroup <info-hams@ucsd.edu>
- Errors-To: Info-Hams-Errors@UCSD.Edu
- Reply-To: Info-Hams@UCSD.Edu
- Precedence: Bulk
- Subject: Info-Hams Digest V94 #698
- To: Info-Hams
-
-
- Info-Hams Digest Thu, 23 Jun 94 Volume 94 : Issue 698
-
- Today's Topics:
- "73's"
- Anyone USE DTMF Paging ? (2 msgs)
- Bitching and Moaning (2 msgs)
- Mobile Antenna Help!
- new HAMCOM interface with optical isolation
- New licensee (3 msgs)
- On-line repeater database
- Tech. Question Pool
- Waiting for License? Wait some more (2 msgs)
-
- Send Replies or notes for publication to: <Info-Hams@UCSD.Edu>
- Send subscription requests to: <Info-Hams-REQUEST@UCSD.Edu>
- Problems you can't solve otherwise to brian@ucsd.edu.
-
- Archives of past issues of the Info-Hams Digest are available
- (by FTP only) from UCSD.Edu in directory "mailarchives/info-hams".
-
- 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: 23 Jun 1994 04:36:51 GMT
- From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!wupost!bigfoot.wustl.edu!cec3!jlw3@network.ucsd.edu
- Subject: "73's"
- To: info-hams@ucsd.edu
-
- Cecil A. Moore -FT-~ (cmoore@ilx018.intel.com) wrote:
-
- : Which reminds me of how you just misused CW. "73" _cannot_ be sent over a
- : Continuous Wave, i.e. unchanging frequency, phase, and amplitude. But
- : everybody knows what you mean when you say CW even if you are misusing it...
- : same with 73.
-
- Well, actually, it is a continuous wave--unchanging frequency phase and
- amplitude--the only thing that is changed is the actual presence of the
- wave--um I think, at least. There is no modulation of the cw, suppsoedly,
- except maybe for the rise and fall times of the signal maybe. . .
-
- --jesse
-
- ------------------------------
-
- Date: Thu, 23 Jun 1994 15:49:31 GMT
- From: ncar!csn!col.hp.com!news.dtc.hp.com!hpscit.sc.hp.com!cupnews0.cup.hp.com!uppal@ames.arpa
- Subject: Anyone USE DTMF Paging ?
- To: info-hams@ucsd.edu
-
- I thought initially that the DTMF Paging feature was a useful one.
- (Enter your 3-digit code, that of the callee too and then your
- handie rings when your code is recognized. The handie also tells
- you who called). However, I am experiencing the following problems:
-
- 1. The alternate to getting paged is either sitting glued to your
- handie, or setting up some time aforehand for a QSO. If you
- do the latter, you conserve battery power since your handie
- is not on most of the time. In the paged mode, you get the
- extra convenience of not having to pre-setup a qso time.
- You do have to leave the handie on all the time and you would
- expect that current drain would be minimal until you are paged.
- Unfortunately the current drain in receive with page mode
- on is the same as normal receive regardless of who is
- on the air (your callee or Joe Q. Random).
-
- 2. The two repeaters I have tried do not pass DTMF codes. So while
- the paging works fine simplex, I have not been able to get it to work
- thru a repeater. Is there a list available of the repeaters that are
- DTMF page friendly ? (actually if I find just a couple in the Bay Area
- I'd be happy).
-
- So how do you folks use DTMF page ? Do you find it useful ?
-
- Sanjay Uppal
- NN9T
-
- ------------------------------
-
- Date: 23 Jun 1994 17:54:45 GMT
- From: ihnp4.ucsd.edu!usc!math.ohio-state.edu!magnus.acs.ohio-state.edu!csn!col.hp.com!fc.hp.com!paulc@network.ucsd.edu
- Subject: Anyone USE DTMF Paging ?
- To: info-hams@ucsd.edu
-
- Sanjay Uppal (uppal@cup.hp.com) wrote:
-
- On DTMF paging...
-
- : Unfortunately the current drain in receive with page mode
- : on is the same as normal receive regardless of who is
- : on the air (your callee or Joe Q. Random).
-
- But, the battery saver should still work when no one is talking. And
- since there's no audio, the current drain should be somewhat less even
- when someone is talking.
-
- : 2. The two repeaters I have tried do not pass DTMF codes. So while
- : the paging works fine simplex, I have not been able to get it to work
- : thru a repeater. Is there a list available of the repeaters that are
- : DTMF page friendly ? (actually if I find just a couple in the Bay Area
- : I'd be happy).
-
- Don't forget that some repeaters will have a sequence to turn on pass-thru
- of DTMF tones.
-
- There are a few people around here that consistently use paging, but only
- a few (maybe 6 in all). They seem to find it useful...
-
-
- -Paul C. KG0CZ
-
- ------------------------------
-
- Date: 23 Jun 1994 18:12:34 GMT
- From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!noc.near.net!jericho.mc.com!fugu!levine@network.ucsd.edu
- Subject: Bitching and Moaning
- To: info-hams@ucsd.edu
-
- In article GAA18048@ucsd.edu, William=E.=Newkirk%Pubs%GenAv.Mlb@ns14.cca.CR.rockwell.COM () writes:
- -->>wait for licenses. ARRL VEC is now saying 16 weeks from the
- -->>time the FCC gets the paperwork. Egads! No wonder attracting
- -->
- --> some more bitching and moaning deleted for brevity....
- -->
- -->You add in about 10-15 days cycle time for the VE's and VEC'd to do their
- -->thing and you are looking at about 18-20 weeks turnaround.
-
- It's for free (the FCC/ARRL/VEs make no money from Ham applications)
- and the service is provided by volunteers, yet the masses
- continue to complain.
-
- ---
- ------------------------------------------------------------
- Bob Levine KD1GG 7J1AIS VK2GYN formerly KA1JFP
- levine@mc.com <--Internet email Phone(508) 256-1300 x247
- kd1gg@wa1phy.ma <--Packet Mail FAX(508) 256-3599
- ------------------------------------------------------------
-
- ------------------------------
-
- Date: Thu, 23 Jun 1994 11:46
- From: ihnp4.ucsd.edu!library.ucla.edu!news.mic.ucla.edu!MVS.OAC.UCLA.EDU!CSMSCST@network.ucsd.edu
- Subject: Bitching and Moaning
- To: info-hams@ucsd.edu
-
- In article <2ucjai$3nj@jericho.mc.com>,
- levine@mc.com (Bob Levine) writes:
-
- >It's for free (the FCC/ARRL/VEs make no money from Ham applications)
- >and the service is provided by volunteers, yet the masses
- >continue to complain.
- >
-
- What many new hams don't realize is what it was like before
- the volunteer (VE) system when availablity of amateur exams
- had dwindled to (in many cases) 4 exams per year in a couple
- of dozen cities -- back then, lots of hams had to travel
- overnight to take their exams, etc. etc. Makes a couple of
- extra weeks of waiting not such a big deal...
-
- -- 73 de Chris Thomas, AA6SQ (ex-WA6HTJ) (CSMSCST@MVS.OAC.UCLA.EDU)
- VE with GLAARG, ARRL
-
- ------------------------------
-
- Date: 21 Jun 1994 13:34:10 GMT
- From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!wupost!bigfoot.wustl.edu!cec3!jlw3@network.ucsd.edu
- Subject: Mobile Antenna Help!
- To: info-hams@ucsd.edu
-
- In the continuing quest to be somewhat equipped when my license finally
- comes and to continue my interest in ham radio before it wanes (I took the
- test 6 mos ago, and I'm still waiting--yes there is a reason for the delay--
- yes, I've upgraded to general and my code is nearly ready for the advanced/
- extra upgrade, and I've not even gotten my first tech-plus license), I'm
- trying to decide on a mobile antenna.
-
- I'm not willing to punch a hole in the car. In fact, I'm still a college
- student and the title is in my *parents'* name, not mine.
-
- 1) What kind of mount should I use? Mag mount? will that damage the paint
- if I take it off (I will probably keep the antenna in the trunk when not
- at use--I don't want it stolen or damaged) and put it on repeatedly? Trunk
- mount? Mirror mount is out of the question--nothing to clamp it to. I have
- a Toyota Camry. For the mag/trunk mount, how does the cable feed in? It
- seems that if it goes through a door or trunk joint, the cable will be
- pinched, at least a little, and after a while, quite a bit.
-
- 2) What kind of connector is better? NMO or UHF? What is the difference
- (In performance, or strength, etc)?
-
- 3) What does spring/coil loading do in relation to performance? Broader
- bandwidth? Is there lowered performance vs. a whip b/c of inductive losses
- or anything like that?
-
- 4) Is there any experience with ANLI Antenna Corp? They have have Model
- AT-2B Antenna "200W 1'10" Spring loaded 3/5.5 dBd. NMO (140-155/390-490 MHz)"
- that is relatively (to comet, diamond, etc) low price--$40, no mount. No
- gain reference was stated.
-
- 5) What is the opinion on Diamond's and Comet's and Larson's dualband
- antennas (I have an Icom W21AT 440/2m ht)? What is the difference b/w
- Comet's FL/SB/B series antennas? Between Diamond's SG/NR antennas? (I
- don't know too much about Larson) Are the performance gains for the
- "higher-end" antennas of a company worth the price difference for those
- more "economical"--especially when they are rated in similar power ratings
- and gain.
-
- 6) Recommendations? I am currently thinking to get the ANLI AT-2B + magmount
- for indoor use on a filing cabinet/cookie sheet because of it's short height
- --and I'd also use it as a scanner antenna when doing long (12 hour) drives.
- I'd also get a "higher performance" Diamond or Comet antenna exclusively for
- use on the car, as they are generally >3 feet long, plus mount. This would
- have to be easily removable, as drunk college kids may want such a cute
- antenna as a new addition to dorm decor! Or even sober ones. . .
-
- Thanks in advance for any help you can give--oh yeah, is Diamond's mounts
- worth the premium you pay for them?
-
- Thanks again!
-
- --jesse
-
- ------------------------------
-
- Date: Thu, 23 Jun 1994 15:06:59 GMT
- From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!news.cac.psu.edu!news.pop.psu.edu!psuvax1!news.ecn.bgu.edu!feenix.metronet.com!copeland@network.ucsd.edu
- Subject: new HAMCOM interface with optical isolation
- To: info-hams@ucsd.edu
-
- Here are two opto circuit I've been playing with for HAMCOM/JVFAX.
- They virtually eliminate all computer induced rfi. I've been using
- a five foot serial cable and twenty foot audio cable with this
- circuit and the results are truly remarkable with JVFAX.
-
- I've used the first circuit successfully, but recommend using the second.
- The first can be built with common Radio Shack parts. The second requires
- a little more uncommon LM358 and TIL181. The Radio Shack opto RECEIVER
- is only rated at 20v but used at 24v and could eventually burn out.
- It also may introduced problems since the +9v is not regulated and induces
- error into the reference op amp output ... even though it seems to work well.
-
- Perhaps some engineers out there may have some advice.
-
- ===============================================================================
-
- +9v
- |-------- +9V ________ DTR
- 9 volt batt. --------- | 1uf | |
- ----- === | |
- | | [ ] 1K [ ] 2.2K
- |-------- | |________DSR
- GND |C |
- +9v ___ |/ - C
- | \ / /\/ |
- .1 uF |\ | ----- |\-> A
- >------| |--*-----------------------|- \ |A |
- | |741 \______| |
- | | / --------RTS
- | --------|+ /
- | | |/ |
- [ ] 100K [ ] 100K |
- | | GND
- *--------------*
- | |
- +9V | |\ |
- | -----|- \ |
- | |741 \___| +4.5 REFERENCE
- 100K [ ] | /
- |-----------|+ /
- 100K [ ] |/
- |
- |
- GND
-
- ===============================================================================
-
- INFARED EMITTER INFARED DETECTOR
- (clear) (dark)
- ---------- ----------
- | | | |
- | |__ | | | |__ | |
- | | | | | | | |
- | -- | | | -- | |
- | | | | | | | |
- ---------- ----------
- | | | |
- | |
- These are available at Radio Shack as a pair for $1.99 (#276-142).
- This shows which is the Anode and which is the Cathode, not clear on
- the package.
-
- The LED and DETECTOR must be positioned right up against each other and
- exactly aligned to get maximum light transfer. The sides with the little
- lense like dots must be placed together.
-
-
- ===============================================================================
- I'd recommend this second circuit for more stability and possibly accuracy.
-
-
- RS232 connector size ----> 25 9
- +9v -- --
- |
- o +9V ----o DTR 20
- / SPST SWITCH | |
- o SW1 | |
- | R1 [ ] 1K R2 [ ] 2.2K
- 9V *-------- | |
- BATTERY | | | |----o DSR 6
- --------- --- C1 |1 TIL181 |5
- ----- --- 1UF .......................
- | | . |C U2 |C .
- * ------- . ___ |/ - .
- | . \ / /\/ | .
- GND . ----- |\-> .
- +9v . |A |A .
- | .......................
- AUDIO 100 nF 6|\ |8 |2 |4
- o------| |--*------------|- \ | |
- | | U1 \_7____| ----o RTS 4
- | 5| /
- | ----|+ / LM358 2|\
- | | |/ |4 ---|- \
- R3 [ ] R4 [ ] | | | U1 \_1___ (not used)
- GND 100K | 100K| | | 3| /
- o-----------*-------*--------*------------*---|+ / LM358
- | |/
- GND
-
-
- ===============================================================================
- | ** NOTE** |
- | After constructing, measure LM358 pin 7 with no audio on the input. |
- | It should be high (~8v), if it is low (~0v) it will drain the battery |
- | in only 20 hours or less. |
- | |
- | To correct this: Disconnect R1 from +9v and reconnect to U1 pin 7. |
- | Disconnect U1 pin 2 and reconnect to GND. |
- | |
- ===============================================================================
-
- The LM358 is a single supply opamp and can be substituted with the LM2904,
- LM158, or LM258. (The dual supply 741 can not be used as a substitute.)
-
- The opto isolator IC can be substitued for many other types. The 4N35 has
- been tested successfully. The discrete infared emitter/detector from
- Radio Shack has been tested successfully.
-
- I tried to use a darlington opto (TIL113), but couldn't get it to work.
- A darlington opto circuit would only require 1.5ma average. That would
- make battery life about 133 hours. Maybe I'll try again later.
-
- ===============================================================================
- MORE NOTES:
-
- The 9v battery could be substitued with a 9 or 12 vdc adapter. However I've
- found the clearest pictures occur when both the radio and HAMCOM are running
- off batteries ... at 6am 8).
-
- A 9v battery should last about 50 hours while audio is present (assuming 200ma
- hours for a battery). If no audio is present the battery will last 400 hours.
-
- The battery life could be a problem for people who leave HAMCOM running
- all night using the timed FAX option. Battery would only last a week.
-
- If you have any advice or knowledge that could improve this, please let
- me know.
-
- copeland@metronet.com
-
- --
- ----------------------------------------------------------------------
- | copeland@metronet.com |
- ----------------------------------------------------------------------
-
-
- --
- ----------------------------------------------------------------------
- | copeland@metronet.com |
- ----------------------------------------------------------------------
-
- ------------------------------
-
- Date: 23 Jun 1994 15:32:16 GMT
- From: ihnp4.ucsd.edu!library.ucla.edu!europa.eng.gtefsd.com!howland.reston.ans.net!vixen.cso.uiuc.edu!newsrelay.iastate.edu!news.iastate.edu!wjturner@network.ucsd.edu
- Subject: New licensee
- To: info-hams@ucsd.edu
-
- In article <2uc6nd$t9e@vixen.cso.uiuc.edu>, dhughes@prairienet.org (Dan Hughes) writes:
- |>
- |> I took my FCC technician test Sunday, March 20, and my license was issued
- |> Tuesday, March 21 (should arrive in the mail tomorrow??). That's 13 1/2
- |> weeks. ---Dan, N9XDK
- |> --
-
- WOW!! One day (20 March to 21 March) for the paperwork to go from the
- VE team to the FCC!!! This must be a new record... :)
-
- (I assume you meant Tuesday, 21 June...)
-
- ------------------------------
-
- Date: 23 Jun 1994 16:30:43 GMT
- From: ihnp4.ucsd.edu!swrinde!howland.reston.ans.net!vixen.cso.uiuc.edu!prairienet.org!dhughes@network.ucsd.edu
- Subject: New licensee
- To: info-hams@ucsd.edu
-
- I'm trying this again, this time with the correct months: Took my tech
- test Sunday, March 20, and my license was issued Tuesday, June 21. Now
- waiting anxiously each day for the mailman (or to be PC, the
- personperson). Thirteen and a half weeks from test to call assignment,
- and I have no idea when my paperwork actually arrived at Gettysburg.
- ---Dan N9XDK
- --
-
- ------------------------------
-
- Date: 23 Jun 1994 17:26:47 GMT
- From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!europa.eng.gtefsd.com!ceylon!news2.near.net!info-server.bbn.com!news!levin@network.ucsd.edu
- Subject: New licensee
- To: info-hams@ucsd.edu
-
- In article <2ucdbj$bse@vixen.cso.uiuc.edu> dhughes@prairienet.org (Dan Hughes) writes:
-
- I'm trying this again, this time with the correct months: Took my tech
- test Sunday, March 20, and my license was issued Tuesday, June 21. Now
- waiting anxiously each day for the mailman (or to be PC, the
- personperson). Thirteen and a half weeks from test to call assignment,
- and I have no idea when my paperwork actually arrived at Gettysburg.
- ---Dan N9XDK
-
- Congratulations! Don't wait too anxiously; I assume you discovered
- your call by phone. Unless they've changed more than just the
- computer program, the licenses are granted on Tuesday and printed and
- mailed on Thursday. Don't be disappointed if it doesn't actually come
- till Saturday or Monday.
-
- Best / JBL
- =
- Nets: levin@bbn.com | "Oops."
- pots: (617)873-3463 |
- ARS: KD1ON | -- Lothos
-
- ------------------------------
-
- Date: 23 Jun 1994 17:17:33 GMT
- From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!gatech!newsfeed.pitt.edu!dsinc!netnews.upenn.edu!netnews.upenn.edu!yee@network.ucsd.edu
- Subject: On-line repeater database
- To: info-hams@ucsd.edu
-
- What remains of the repeater database is availabl for ftp from
- mipgsun.mipg.upenn.edu:/pub/yee/rptr01x.Z The current version is 0.10
- I am trying to find time to put out version 0.11 It will containa a
- few more entries. As always, I am hoping to get input for additional
- entries.
-
- Unfortunately, I am unable to distribute version 0.03 any more. I believe
- that copies do exist out there though.
-
- --
- Medical Image Processing Group | 73 de Conway Yee, N2JWQ
- 411 Blockley Hall | EMAIL : yee@mipg.upenn.edu
- 423 Guardian Drive | TELEPHONE : 1 (215) 662-6780
- Philadelphia, PA 19104-6021 (USA) | FAX : 1 (215) 898-9145
-
- ------------------------------
-
- Date: Thu, 23 Jun 94 09:32:47 EST
- From: ihnp4.ucsd.edu!dog.ee.lbl.gov!agate!iat.holonet.net!dbot.uu.holonet.net!sysop@network.ucsd.edu
- Subject: Tech. Question Pool
- To: info-hams@ucsd.edu
-
- I2>I'm looking for the most recent tech. question pool. If anyone
- I2>can provide an electronic copy, or point me to a source
- I2>for them in print, I'd be very appreciative. Also, does
- I2>the tech no code exam include the novice exam?
-
- I2>Thanks for the help,
- I2>2575brooksr@vms.csd.mu.edu
-
- You can get the latest questions and the study Program FCCSTUDY on my
- BBS, Database of Tennessee, its free access, I have over 2100 ham
- related files on-line. The number is 901-855-4124 for up to 14400 bps
- or 901-855-4127
-
- 73 de Tim KD4PYN Sysop
-
- * 901-855-4124 14400 BPS * 901-855-4127 28800 V.FC * Running MajorBBS v.6.2 *
- * dbot.uu.holonet.net
-
- ------------------------------
-
- Date: 23 Jun 1994 05:49:54 GMT
- From: ihnp4.ucsd.edu!usc!howland.reston.ans.net!wupost!bigfoot.wustl.edu!cec3!jlw3@network.ucsd.edu
- Subject: Waiting for License? Wait some more
- To: info-hams@ucsd.edu
-
- George Guillory (guillory@blkbox.com) wrote:
- : For those of you who are lurking in the group and waiting for
- : your license, I have bad news.
-
- : I just talked to the ARRL VEC and they said that the current
- : wait is 16 weeks from the time that the FCC gets the paperwork
- : from ARRL.
-
- : The VEC manager reports that there are 16,000 license actions
- : pending at the FCC. As reported previously there ar 1 or 2
- : people processing the applications once a week.
-
- : Perhaps I should have titled this message
-
- : "DEATH OF A NEW HAM"
-
- No doubt. Now is 16 weeks for starting now or ending now? That is,
- Does it mean that if the 610 was submitted 12 weeks ago I have to wait
- another 4, or that if I submit the 610 today I have to wait 16?
-
- --jesse (27 weeks and counting)
-
- ------------------------------
-
- Date: 23 Jun 1994 05:57:47 GMT
- From: ihnp4.ucsd.edu!swrinde!gatech!howland.reston.ans.net!wupost!bigfoot.wustl.edu!cec3!jlw3@network.ucsd.edu
- Subject: Waiting for License? Wait some more
- To: info-hams@ucsd.edu
-
- I just (jlw3@cec3.wustl.edu) wrote:
- : George Guillory (guillory@blkbox.com) wrote:
-
- : : The VEC manager reports that there are 16,000 license actions
- : : pending at the FCC. As reported previously there ar 1 or 2
- : : people processing the applications once a week.
-
- : : Perhaps I should have titled this message
-
- : : "DEATH OF A NEW HAM"
-
- : No doubt. Now is 16 weeks for starting now or ending now? That is,
- : Does it mean that if the 610 was submitted 12 weeks ago I have to wait
- : another 4, or that if I submit the 610 today I have to wait 16?
-
- : --jesse (27 weeks and counting)
-
- Oh yeah, before you start emailing that 27 weeks is too long and I should
- complain, etc., I know. But I called about 2 weeks ago and the person I
- talked to said they were processing 300 applications a day. I assumed that
- was correct. Now, 16000 actions divided by 300 per day = 53.3 days, divided
- by 5 business days a week = 10.7 weeks. I still like the 12 week quote,
- but I guess reality reigns. The VEC told me (3 months ago) to call Today
- (as in 23 June) and check on the status so I'll do that again and listen to
- the recording to see the waiting time they say. . .
-
- ------------------------------
-
- End of Info-Hams Digest V94 #698
- ******************************
-