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- Date: Mon, 28 Feb 94 05:43:07 PST
- 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 #218
- To: Info-Hams
-
-
- Info-Hams Digest Mon, 28 Feb 94 Volume 94 : Issue 218
-
- Today's Topics:
- ARLD011 DX news
- Cordless Phone - call setup
- Daily Summary of Solar Geophysical Activity for 23 February
- Daily Summary of Solar Geophysical Activity for 24 February
- JARGON
-
- 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: Fri, 25 Feb 1994 07:56:51 -0700
- From: ihnp4.ucsd.edu!pacbell.com!sgiblab!swrinde!cs.utexas.edu!math.ohio-state.edu!cyber2.cyberstore.ca!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@network.ucsd.edu
- Subject: ARLD011 DX news
- To: info-hams@ucsd.edu
-
- SB DX @ ARL $ARLD011
- ARLD011 DX news
-
- ZCZC AE09
- QST de W1AW
- DX Bulletin 11 ARLD011
-
- ------------------------------
-
- Date: Fri, 25 Feb 1994 18:05:41 -0600
- From: ihnp4.ucsd.edu!swrinde!gatech!asuvax!pitstop.mcd.mot.com!mcdphx!schbbs!mothost!lmpsbbs!johng.comm.mot.com!user@network.ucsd.edu
- Subject: Cordless Phone - call setup
- To: info-hams@ucsd.edu
-
- In article <thweatt.762119742@mustang3>, thweatt@rtsg.mot.com (J. T.)
- wrote:
-
- > I am interested in learning about the communications between the
- > Base and the Hand-Set in setup and tear-down of a call. If you
- > have a good technical understanding of this process, please
- > email me. Does anyone know of any good book, which explains this
- > wire-less interface? This is regarding Cordless not Cellular.
- >
- > Thanks,
- > John
-
- It is different for each manufacturer. You might just take a look at it
- over the air with a mod analyzer and storage scope. Or you could build a
- simple demodulator and run it into a logic analyzer. You could also make a
- call to some of your collegues at the Motorola consumer products camp up in
- Grayslake for more detail on the Motorola Cordless phone.
- --
- John Gilbert johng@ecs.comm.mot.com
-
- ------------------------------
-
- Date: Fri, 25 Feb 1994 13:48:38 MST
- From: ihnp4.ucsd.edu!swrinde!gatech!newsxfer.itd.umich.edu!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@network.ucsd.edu
- Subject: Daily Summary of Solar Geophysical Activity for 23 February
- To: info-hams@ucsd.edu
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- DAILY SUMMARY OF SOLAR GEOPHYSICAL ACT
-
- 23 FEBRUARY, 1994
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- (Based In-Part On SESC Observational Data)
-
-
- SOLAR AND GEOPHYSICAL ACT
- ------------------------------------------------------------
-
- !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 054, 02/23/94
- 10.7 FLUX=107.4 90-AVG=107 SSN=047 BKI=2333 2001 BAI=007
- BGND-XRAY=B2.0 FLU1=7.3E+06 FLU10=2.3E+04 PKI=2333 2232 PAI=011
- BOU-DEV=013,038,025,027,011,004,004,005 DEV-AVG=015 NT SWF=00:000
- XRAY-MAX= C1.4 @ 2051UT XRAY-MIN= A7.7 @ 0734UT XRAY-AVG= B2.9
- NEUTN-MAX= +001% @ 2320UT NEUTN-MIN= -005% @ 1015UT NEUTN-AVG= -1.5%
- PCA-MAX= +0.1DB @ 2140UT PCA-MIN= -0.3DB @ 1045UT PCA-AVG= +0.0DB
- BOUTF-MAX=55348NT @ 0336UT BOUTF-MIN=55314NT @ 1847UT BOUTF-AVG=55337NT
- GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+075,+000,+000
- GOES6-MAX=P:+123NT@ 1802UT GOES6-MIN=N:-067NT@ 0355UT G6-AVG=+096,+040,-034
- FLUXFCST=STD:105,100,100;SESC:105,100,100 BAI/PAI-FCST=010,010,005/018,015,010
- KFCST=2344 4321 2334 4321 27DAY-AP=016,016 27DAY-KP=2343 3433 4335 3221
- WARNINGS=
- ALERTS=
- !!END-DATA!!
-
- NOTE: The Effective Sunspot Number for 22 FEB 94 was 26.0.
- The Full Kp Indices for 22 FEB 94 are: 7o 6o 4o 5+ 4+ 3o 3- 3o
- The 3-Hr Ap Indices for 22 FEB 94 are: 140 80 27 54 34 16 11 15
- Greater than 2 MeV Electron Fluence for 23 FEB 94 is: 7.9E+08
-
-
- SYNOPSIS OF ACT
- --------------------
-
- Solar activity was low. A C1 x-ray event occurred at
- 23/0146Z and another at 23/2051Z both were optically
- uncorrelated. The three spot groups visible have been stable.
-
- Solar activity forecast: solar activity is expected to be
- low.
-
- The geomagnetic field has been at quiet to unsettled
- levels for the past 24 hours. Brief periods of minor to
- major storm levels occurred at high-latitudes.
-
- Geophysical activity forecast: the geomagnetic field is
- expected to be quiet to unsettled throughout the period.
- Intervals of nighttime substorms are possible during the
- next 24 hours.
-
- Event probabilities 24 feb-26 feb
-
- Class M 05/05/05
- Class X 01/01/01
- Proton 05/05/05
- PCAF Yellow
-
- Geomagnetic activity probabilities 24 feb-26 feb
-
- A. Middle Latitudes
- Active 25/25/15
- Minor Storm 15/15/10
- Major-Severe Storm 05/05/01
-
- B. High Latitudes
- Active 25/25/20
- Minor Storm 20/15/15
- Major-Severe Storm 10/05/05
-
- HF propagation conditions continue to gradually improve.
- Middle and low latitudes are observing predominantly normal
- conditions, while high and polar latitudes are still seeing
- periods of minor signal degradation and below-normal
- propagation due to residual night-sector substorm activity.
- Conditions should return to near-normal over the higher
- latitudes over the next 24 to 36 hours and should then remain
- normal for at least the next 48 to 72 hours.
-
-
- COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
- ========================================================
-
- REGIONS WIT
- -----------------------------------------------------------
- NMBR LOCATION LO AREA Z LL NN MAG TYPE
- 7671 N11W55 191 0290 CSO 07 009 BET
- 7675 S12E28 108 0070 CSO 05 006 BET
- 7676 N08E40 096 0010 BXO 07 002 BET
- 7669 N08W73 209 PLAGE
- 7670 N09W63 199 PLAGE
- 7674 S14W30 166 PLAGE
- 7677 N20W25 161 PLAGE
- REGIONS DUE TO RET
- NMBR LAT
- 7664 S13 036
- 7665 N03 029
-
-
- LISTING OF SOLAR ENERGETIC EVENTS FOR 23 FEBRUARY, 1994
- -------------------------------------------------------
- BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP SWF
- NO EVENTS OBSERVED
-
-
- POSSIBLE CORONAL MASS EJECTION EVENTS FOR 23 FEBRUARY, 1994
- -----------------------------------------------------------
- ISOLATED HOLES AND POLAR EXT
- EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
- 63 S20W30 S28W34 S14W54 S10W49 184 ISO POS 006 10830A
- 64 N85E86 N18W42 N85W90 N85W90 155 EXT
- 65 S26E40 S28E36 S16E21 S14E24 113 ISO POS 002 10830A
-
-
- SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz
- ------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
- 22 Feb: 0224 0237 0251 C1.2
- 0448 0453 0459 B5.8
-
-
- REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- C M X S 1 2 3 4 Total (%)
- -- -- -- -- -- -- -- -- --- ------
- Uncorrellated: 1 0 0 0 0 0 0 0 002 (100.0)
-
- Total Events: 002 optical and x-ray.
-
-
- EVENTS WIT
- ----------------------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn Sweeps/Optical Observations
- ------ ---- ---- ---- ---- -- ------ ------ ---------------------------
- NO EVENTS OBSERVED.
-
- NOTES:
- All times are in Universal Time (UT). Characters preceding begin, max,
- and end times are defined as: B = Before, U = Uncertain, A = After.
- All times associated with x-ray flares (ex. flares which produce
- associated x-ray bursts) refer to the begin, max, and end times of the
- x-rays. Flares which are not associated with x-ray signatures use the
- optical observations to determine the begin, max, and end times.
-
- Acronyms used to identify sweeps and optical phenomena include:
-
- II = Type II Sweep Frequency Event
- III = Type III Sweep
- IV = Type IV Sweep
- V = Type V Sweep
- Continuum = Continuum Radio Event
- Loop = Loop Prominence System,
- Spray = Limb Spray,
- Surge = Bright Limb Surge,
- EPL = Eruptive Prominence on the Limb.
-
-
- ** End of Daily Report **
-
- ------------------------------
-
- Date: Fri, 25 Feb 1994 07:59:49 MST
- From: ihnp4.ucsd.edu!pacbell.com!sgiblab!swrinde!cs.utexas.edu!math.ohio-state.edu!cyber2.cyberstore.ca!nntp.cs.ubc.ca!alberta!ve6mgs!usenet@network.ucsd.edu
- Subject: Daily Summary of Solar Geophysical Activity for 24 February
- To: info-hams@ucsd.edu
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- DAILY SUMMARY OF SOLAR GEOPHYSICAL ACT
-
- 24 FEBRUARY, 1994
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- (Based In-Part On SESC Observational Data)
-
-
- SOLAR AND GEOPHYSICAL ACT
- ------------------------------------------------------------
-
- !!BEGIN!! (1.0) S.T.D. Solar Geophysical Data Broadcast for DAY 055, 02/24/94
- 10.7 FLUX=105.0 90-AVG=107 SSN=058 BKI=1012 2122 BAI=004
- BGND-XRAY=B1.9 FLU1=5.2E+06 FLU10=1.8E+04 PKI=1112 2121 PAI=005
- BOU-DEV=000,004,009,015,010,007,010,017 DEV-AVG=009 NT SWF=00:000
- XRAY-MAX= C2.9 @ 1833UT XRAY-MIN= B1.2 @ 0729UT XRAY-AVG= B3.2
- NEUTN-MAX= +002% @ 1730UT NEUTN-MIN= -003% @ 1915UT NEUTN-AVG= -0.7%
- PCA-MAX= +0.2DB @ 2310UT PCA-MIN= -0.3DB @ 0405UT PCA-AVG= +0.0DB
- BOUTF-MAX=55348NT @ 1453UT BOUTF-MIN=55322NT @ 1852UT BOUTF-AVG=55341NT
- GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+079,+000,+000
- GOES6-MAX=P:+123NT@ 1940UT GOES6-MIN=N:-059NT@ 0612UT G6-AVG=+100,+038,-031
- FLUXFCST=STD:100,100,100;SESC:100,100,100 BAI/PAI-FCST=010,010,010/002,001,001
- KFCST=1112 2111 1113 3111 27DAY-AP=016,008 27DAY-KP=4335 3221 1233 3212
- WARNINGS=
- ALERTS=
- !!END-DATA!!
-
- NOTE: The Effective Sunspot Number for 23 FEB 94 was 38.5.
- The Full Kp Indices for 23 FEB 94 are: 2+ 3+ 3- 3o 2+ 2+ 3- 2-
- The 3-Hr Ap Indices for 23 FEB 94 are: 9 19 13 15 10 10 12 6
- Greater than 2 MeV Electron Fluence for 24 FEB 94 is: 9.1E+08
-
-
- SYNOPSIS OF ACT
- --------------------
-
- Solar activity was low. Only one C-class flare was
- observed during the period. The source was uncertain because
- only weak H-alpha emissions in the vicinity of Region 7671
- (N10W72) were time coincident with the x-rays. A new H-type
- group rotated into view near S15E77 and was assigned SESC
- Region number 7678.
-
- Solar activity forecast: solar activity is expected to
- be low.
-
- The geomagnetic field was quiet to unsettled.
-
- Geophysical activity forecast: the geomagnetic field is
- expected to be quiet to unsettled for the next three days.
-
- Flare event probabilities 25 feb-27 feb
-
- Class M 05/05/05
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
-
- HF propagation conditions finally returned to normal over
- all regions today. Near-normal conditions are expected to
- persist over the next 72 hours, through 27 February inclusive.
-
-
- COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
- ========================================================
-
- REGIONS WIT
- -----------------------------------------------------------
- NMBR LOCATION LO AREA Z LL NN MAG TYPE
- 7671 N10W68 191 0200 DAO 06 008 BET
- 7675 S11E17 106 0030 CAO 05 007 BET
- 7676 N08E27 096 0010 BXO 04 002 BET
- 7678 S14E74 049 0070 HSX 02 001 ALPHA
- 7669 N08W86 209 PLAGE
- 7670 N09W76 199 PLAGE
- 7674 S14W43 166 PLAGE
- 7677 N20W38 161 PLAGE
- REGIONS DUE TO RET
- NMBR LAT
- 7665 N03 029
-
-
- LISTING OF SOLAR ENERGETIC EVENTS FOR 24 FEBRUARY, 1994
- -------------------------------------------------------
- BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP SWF
- NO EVENTS OBSERVED
-
-
- POSSIBLE CORONAL MASS EJECTION EVENTS FOR 24 FEBRUARY, 1994
- -----------------------------------------------------------
- ISOLATED HOLES AND POLAR EXT
- EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
- 63 S28W45 S30W48 S15W68 S08W55 186 ISO POS 006 10830A
- 64 N60W13 N15W52 N17W58 N60W28 166 EXT
- 65 S30E30 S32E27 S15E07 S09E10 114 ISO POS 004 10830A
- 66 N10W53 S05W58 N12W58 N12W58 187 ISO POS 002 10830A
-
-
- SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz
- ------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
- 23 Feb: 0137 0146 0154 C1.0
- 0250 0255 0300 B4.0
- 0324 0332 0337 B4.4
- 1433 1437 1441 B3.9
- 1520 1525 1537 C1.1
- 1746 1753 1811 B7.0
- 1924 1928 1930 B6.4
- 2043 2051 2104 C1.4
-
-
- REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- C M X S 1 2 3 4 Total (%)
- -- -- -- -- -- -- -- -- --- ------
- Uncorrellated: 3 0 0 0 0 0 0 0 008 (100.0)
-
- Total Events: 008 optical and x-ray.
-
-
- EVENTS WIT
- ----------------------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn Sweeps/Optical Observations
- ------ ---- ---- ---- ---- -- ------ ------ ---------------------------
- NO EVENTS OBSERVED.
-
- NOTES:
- All times are in Universal Time (UT). Characters preceding begin, max,
- and end times are defined as: B = Before, U = Uncertain, A = After.
- All times associated with x-ray flares (ex. flares which produce
- associated x-ray bursts) refer to the begin, max, and end times of the
- x-rays. Flares which are not associated with x-ray signatures use the
- optical observations to determine the begin, max, and end times.
-
- Acronyms used to identify sweeps and optical phenomena include:
-
- II = Type II Sweep Frequency Event
- III = Type III Sweep
- IV = Type IV Sweep
- V = Type V Sweep
- Continuum = Continuum Radio Event
- Loop = Loop Prominence System,
- Spray = Limb Spray,
- Surge = Bright Limb Surge,
- EPL = Eruptive Prominence on the Limb.
-
-
- ** End of Daily Report **
-
- ------------------------------
-
- Date: Sun, 27 Feb 1994 10:27:12 +0000
- From: ihnp4.ucsd.edu!agate!howland.reston.ans.net!pipex!demon!llondel.demon.co.uk!dave@network.ucsd.edu
- Subject: JARGON
- To: info-hams@ucsd.edu
-
- In article <1994Feb26.183908.15322@pro-haven.cts.com> phantom@pro-haven.cts.com (Tiffany Keller) writes:
- >Howdy...
- >
- > Regarding ham jargon...here's a good one you might be able to
- >use...it's XYL and it stands for ex young lady....(which I take great
- >offense to as a deragatory remark (I am not an "XYL" because I am only 22
- >years old! :-) ) The term is used to refer to one's wife...(because most
- >hams are of male gender and all...) I think I might start refering to OMs
- >(old men) as XYM and see if they like that...:-)
- >
- How about abolishing XYL and using OG (Old Girl) instead? Just think, the
- British Young Ladies Amateur Radio Association (BYLARA) could become BOGARA
- instead :-)
-
- Dave
- --
-
- *****************************************************************************
- * G4WRW @ GB7WRW.#41.GBR.EU AX25 * Start at the beginning. Go on *
- * dave@llondel.demon.co.uk Internet * until the end. Then stop. *
- * g4wrw@g4wrw.ampr.org Amprnet * (the king to the white rabbit) *
- *****************************************************************************
-
- ------------------------------
-
- Date: Sun, 27 Feb 1994 14:09:58 GMT
- From: ihnp4.ucsd.edu!swrinde!gatech!wa4mei.ping.com!ke4zv!gary@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <1994Feb24.201333.9607@arrl.org>, <1994Feb26.153307.8030@ke4zv.atl.ga.us>, <1994Feb27.012117.11788@arrl.org>
- Reply-To : gary@ke4zv.UUCP (Gary Coffman)
- Subject : Re: Medium range point-to-point digital links
-
- In article <1994Feb27.012117.11788@arrl.org> zlau@arrl.org (Zack Lau (KH6CP)) writes:
- >: >
- >: >New Alpha Gunnplexers are $48.00 from SHF Parts 7102 W. 500 S. La Porte,
- >: >IN 46350. The used (checked out) ones are $25.00 each. These should
- >: >be fine for 1 MB/s links. For more bandwidth, you can get new ones with
- >: >varactor diodes (voltage tuning) for $66 each.
- >
- >: Yeah, I have a couple, but these are just raw gunnplexer components.
- >: Kitting up a competent data transceiver runs the price up a bunch.
- >: Note for a nationwide network you need a *lot* of these transceivers,
- >: and not everyone will be a microwave guru who can whip up something
- >: out of available surplus. We're going to need standard kits, and
- >: assurance of continuing spares to maintain the network.
- >
- >Why is a microwave guru needed for gunnplexers? The only microwave
- >part is attaching the antenna, and I've not heard of anyone who
- >couldn't manage that. Granted, you probably want to mark which end
- >goes up, but this is a mistake more often made by experienced amateurs,
- >rather than ignorant newcomers :-).
-
- Ha, Ha. The problem doesn't come with mounting the gunnplexer, or
- even aiming them, the problem is making sure they're on frequency
- and making rated power, and that the detector diodes haven't gone
- south. Most hams don't have the appropriate test equipment, or the
- skills to fabricate cheap alterative test equipment. Yeah, yeah,
- a radar detector can serve as a minimal activity checker, but that's
- not good enough to set up and maintain a legal and efficient link.
-
- >: Because they are rarely where you need them. You use them when
- >: they're in the right place, and you can get site access, but
- >: tall buildings are mainly clustered in metro downtowns. That
- >: doesn't help much when you need to cross farm country to get
- >: from one metroplex to the next. Plus those building clusters
- >: really cause a lot of multipath problems, and those downtowns
- >: are generally also very high RF environments. Staying away from
- >: them is generally a win.
- >
- >I've been told that the 10 GHz equipment at 4U1UN worked quite
- >well, unlike the VHF gear that got clobbered by the RF. Are
- >there really that many sites worse than the top of the United
- >Nations Building in New York City in terms of RFI?
-
- Probably. The Peachtree Plaza in Atlanta, and the Sears Tower
- in Chicago are two for sure. Their roofs are OSHA forbidden
- zones because the RF is so intense there that it'll fry you
- like an egg if you go out without disabling the transmitters.
- And there are microwave links at 57 Ivy that you can use to
- cook hotdogs. Even our parking deck at 1611 W Peachtree has
- 1000 watts of 24 GHz power feeding an 8 meter dish. Don't
- get in it's way. I've read that the transmitters on the top
- of the Empire State building are serious emitters too, but
- they aren't normally accessable due to the structure of the
- roof.
-
- >One of the tricks to making microwave gear resistant to
- >interference is to use horn antennas or waveguide in your
- >input circuit. They make a very low loss high pass filter.
- >The waveguide below cutoff effect is quite effective in
- >reducing low frequency interference.
-
- Sure, that helps, especially if you use *enough* waveguide. You
- need at least a 1/4 wave depth at the frequency of the *interference*
- to get meaningful attenuation. That is often in the 100 MHz region
- because of colocated FM broadcast transmitters. Remember you've got
- a simple diode detector in there that will respond to *any* RF of
- sufficient magnitude, and one of it's terminals is exposed on the
- outside of the gunnplexer. When the interference is at 10 GHz or
- higher, the waveguide doesn't act as a filter, of course, and there
- are thousands of 10 GHz emitters in LOS of a typical downtown rooftop
- from security systems and speed cops. Usually, the magnitude of that
- interference is low enough due to the narrow beam of your dish that
- you can avoid most of it, but if you're near an uplink site running
- serious power at Ku, then you're going to pick that up.
-
- >Perhaps the best cure for multipath is to go to higher frequencies
- >and use sharper antennas. Dish antennas normally have quite
- >clean patterns. You can also improve the pattern by under-
- >illuminating a dish, although this often isn't necessary.
-
- Yes, under-illuminating a larger dish can help, but you have to
- be sure your feed has low sidelobes, dipoles with reflectors don't
- hack it, and pyramidal horns aren't all that clean either. What
- you want is a circular feed horn that's precisely matched to your
- dish. Adding a "fence" to the edge of the dish can help too. We've
- got a 2 foot high fence on an 8 foot dish we use for a link. Without
- it, we get so much spill from other emitters that the picture is
- trashed.
-
- Multipath is always a concern with video because it's so visible
- as ghosting. Data is more resistant up to the point where the
- "eye" is corrupted too much for reliable slicing. Even a 0.5
- degree beam diverges. In metroplexes, we often only have a clear
- window of 100 meters or less to pass the signal. Figure out how
- far back you can get and still not illuminate those buildings.
- It's not very far, so your link can't be very long.
-
- Gary
- --
- Gary Coffman KE4ZV | You make it, | gatech!wa4mei!ke4zv!gary
- Destructive Testing Systems | we break it. | uunet!rsiatl!ke4zv!gary
- 534 Shannon Way | Guaranteed! | emory!kd4nc!ke4zv!gary
- Lawrenceville, GA 30244 | |
-
- ------------------------------
-
- Date: Sun, 27 Feb 1994 13:38:07 GMT
- From: ihnp4.ucsd.edu!swrinde!gatech!wa4mei.ping.com!ke4zv!gary@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <marcbgCLs9GF.GK9@netcom.com>, <jfhCLsBMn.7nJ@netcom.com>, <rcrw90-250294135425@waters.corp.mot.com.corp.mot.com>
- Reply-To : gary@ke4zv.atl.ga.us (Gary Coffman)
- Subject : Re: On-line Repeater Directory
-
- In article <rcrw90-250294135425@waters.corp.mot.com.corp.mot.com> rcrw90@email.mot.com (Mike Waters) writes:
- >
- >In other words "we have to make money off it" is a perfectly valid reason,
- >especially considering the man-years of effort that went into creating the
- >publication in the first place!
-
- While I don't have a problem with the League trying to make a buck off
- their publications, the "man-years" of effort that went into gathering
- the information was done by various coordinating bodies like SERA. The
- League doesn't pay a dime for the computer lists SERA furnishes to them.
-
- Let me quote what SERA says about their database in the SERA Journal.
-
- "The SERA repeater index may be published or reproduced in any form
- by any publication or electronic means to be distributed without
- charge. Appropriate credit must be given to the SERA Repeater Journal."
-
- SERA lists 10 southeastern states in the Journal, Georgia, Tennessee,
- Kentucky, Mississippi, North Carolina, South Carolina, Virginia, West
- Virginia, and including the T-MARC coordinated repeaters in Maryland,
- Delaware, and DC. *This* is where the ARRL gets their listings for these
- states. They don't pay a dime for them, or for the man-years of effort
- that went into the coordinations and database. They don't even have the
- courtsey to give SERA credit for the information.
-
- Now like I said, I don't mind the League trying to turn a buck, but
- they've sure got a lot of gall making lawyer noises to Yee claiming
- he's ripping them off when *they* are ripping off the efforts of the
- coordinating bodies.
-
- Gary
- --
- Gary Coffman KE4ZV | You make it, | gatech!wa4mei!ke4zv!gary
- Destructive Testing Systems | we break it. | uunet!rsiatl!ke4zv!gary
- 534 Shannon Way | Guaranteed! | emory!kd4nc!ke4zv!gary
- Lawrenceville, GA 30244 | |
-
- ------------------------------
-
- Date: (null)
- From: (null)
- SB DX ARL ARLD011
- ARLD011 DX news
-
- Items in this week's bulletin are courtesy of Chod, VP2ML; The DX
- Bulletin; Bob, W5KNE; QRZ DX; the Ohio/Penn DX Bulletin, the Yankee
- Clipper Contest Club PacketCluster network and Contest Corral in
- QST. Thanks.
-
- PENGUIN ISLANDS AND WALVIS BAY. ZS0X is now active by Baldur,
- DJ6SI; Henry, DJ6JC; and V51BI. The most recent PacketCluster spots
- show much activity between 7004 and 7010 kHz from 0300 to 0500z.
- There have been some reports that the crew will stay on after the
- 28th using V5JC, V5SI and V5BI for call signs. QSL CW and SSB
- operations via DJ6SI. RTTY and OSCAR QSOs, QSL via DJ6JC. ZS9A was
- worked recently on 14226 kHz at 2015z. Both ZS9 and ZS0 will become
- territories of Namibia on March 1.
-
- AMERICAN SAMOA. Check 3522 kHz between 1130 and 1200z for
- KH8/AA6LB. East coast stations running exciter power to average
- antennas have been able to work this one.
-
- TONGA. Bob, W7TSQ, will be active for about two more weeks as
- A35SQ. He has been operating free-style around 14225 kHz between
- 1500 and 1530z. QSL to W7TSQ.
-
- FRENCH POLYNESIA. Dave, WD5N, is operating FO0HAR and will try to
- operate from the Southern Cook Islands at journey's end. QSL via
- WD5N.
-
- REVILLA GIGEDO ISLANDS. Hector, XE1BEF, and company are active as
- XF4C from Clarion Island. This all band, CW/SSB/RTTY effort should
- run until March 4. Check 3795 kHz at 0415z, 7013 between 0600 and
- 0730, 14170 at 0200 and 14260 at 0315. QSL via XE1BEF.
-
- GUANTANAMO BAY. Jim, KG4DX; Dave, WQ5Y; and Nellie, XE1CI, are
- active as KG4CB. Check 14226 kHz around 0215 and 0330z.
-
- CRYSTAL BALL. The following are some operations planned for the
- not-too-distant future.
-
- BANABA ISLAND. Nils, SM6CAS, and Mats, SM7PKK, will sign T33CS and
- T33KK from March 27 to April 5.
-
- BENIN. Ken, WA4OBO, expects to be on as TY8OBO for two weeks
- starting March 1. QSL his home call.
-
- COCOS ISLANDS. OKDXA and Young Gunners DX Foundation members are
- wrapping up plans for their May DXpedition from Mayos Island.
- Transportation has been obtained, and landing and operating
- permission have been granted. This full-scale, multi-national, 12
- operator effort will include seven stations, including dedicated
- satellite and RTTY positions. QSL via OKDXA, Box 88, Wellston OK
- 74881.
-
- THAILAND. Samui Island, IOTA AS-101, may be activated by a group of
- Thailand amateurs sometime in March. This island is located off the
- Malay Peninsula North East group and has not been active for about
- two years.
-
- THIS WEEKEND ON THE RADIO. Indoor radio-sporting activities for
- this weekend include these events.
-
- The phone weekend of the CQ World Wide 160-Meter DX Contest runs
- from 2200z February 25 to 1600z February 27. Exchange signal report
- and either state, province or DX prefix/country abbreviation. Check
- page 129 and 130 of December QST for more info.
-
- IARU sister society RSGB's 7 MHz Contest is from 1500z February 26
- to 0900z February 27 on CW only between 7000 and 7030 kHz. Exchange
- RST and serial number. UK stations will also exchange a three
- letter country code. Details appear on page 128 of January QST.
-
- The French IARU member society sponsors the REF French Contest,
- phone, running from 0600z February 26 to 1800z February 27. Work
- French stations, including overseas territories and DA1 and 2 French
- military stations, on 80 through 10 meters. Exchange signal report
- and serial number. Page 130 of December QST has more particulars on
- this event.
-
- The CW weekend of the YL OM Contest runs from 1400z February 26 to
- 0200z February 28. YLs work OMs and OMs work YLs for a maximum of
- 24 hours exchanging QSO number, signal report and either state,
- province or DXCC country. More info can be found on page 127 of
- January QST.
- NNNN
- /EX
-
- ------------------------------
-
- Date: Sun, 27 Feb 1994 13:12:55 GMT
- From: ihnp4.ucsd.edu!library.ucla.edu!csulb.edu!csus.edu!netcom.com!wb8foz@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <strnlghtCLuG24.3o2@netcom.com>, <6RCrbej024n@sktb.demon.co.uk>, <wb8fozCLv42H.My0@netcom.com>
- Reply-To : wb8foz@skybridge.scl.cwru.edu (David Lesher)
- Subject : Re: CRYPTO: DoJ's new rules for access to Clipper keys
-
-
-
- (UnProfessor Sternlight) writes:
-
-
- > I remember when World War II started one of the first things the U.S.
- > Government did was seize all the transmitter coils of all the ham radio
- > operators.
-
-
- Hmm,
- I'd like someone who was licensed at the time to comment. But I once
- borrowed & read a slew of WWII _QST_ mags, and I thought the ?Dept. of
- Communications? came around with a little seal for the power switch.
- This was AFTER the interim war emergency radio service was shut down.
- THAT was quite a while after war was declared.
- --
- A host is a host from coast to coast.................wb8foz@nrk.com
- & no one will talk to a host that's close...........(v)301 56 LINUX
- Unless the host (that isn't close)....kibo# 777............pob 1433
- is busy, hung or dead..............vr....................20915-1433
-
- ------------------------------
-
- Date: Sun, 27 Feb 1994 14:59:13 GMT
- From: ihnp4.ucsd.edu!swrinde!cs.utexas.edu!howland.reston.ans.net!wupost!udel!news.sprintlink.net!wyvern!mlf@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <1994Feb25.074115.14979@bongo.tele.com>, <yV6cic5w165w@ham.almanac.bc.ca>, <CLv1qr.79I@telemax.com>intli
- Subject : Re: Nude Radio Amateurs
-
- macy@telemax.com (Macy Hallock) writes:
-
- >In article <yV6cic5w165w@ham.almanac.bc.ca> emd@ham.almanac.bc.ca writes:
- >>the difficult part is finding a place to pin on your callsign tag ... and
- >>trying to find a place to painlessly hook the speaker mike on the
- >>handheld.....
-
- >Velcro and chest hair works fine. Just don't be in _too_ much of
- >a hurry to grab that speaker mic when you hear someone call you...
-
- ok, but some men don't have much chest hair - use armpit hair instead?
- and what about women?
-
- 73, de mark, KD4GGP
- --
- "Ad Astra, Per Aspera"
-
- ------------------------------
-
- End of Info-Hams Digest V94 #218
- ******************************
-