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- Date: Sun, 13 Feb 94 07:01:50 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 #145
- To: Info-Hams
-
-
- Info-Hams Digest Sun, 13 Feb 94 Volume 94 : Issue 145
-
- Today's Topics:
- A is for alpha..... (2 msgs)
- Antenna Erection Aids - Thor's socks
- Copying High-Speed CW: Print or Script?
- Daily Summary of Solar Geophysical Activity for 07 February
- Daily Summary of Solar Geophysical Activity for 08 February
- Hamblaster update
- Long range digital links
- NUDE AMATEUR RADIO CL
- which is better qrp band--30 or 40?
-
- 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: 11 Feb 1994 14:34:28 GMT
- From: ucsnews!sol.ctr.columbia.edu!howland.reston.ans.net!agate!news.Brown.EDU!NewsWatcher!user@network.ucsd.edu
- Subject: A is for alpha.....
- To: info-hams@ucsd.edu
-
- In article <erik_read-100294175751@gardner2.life.uiuc.edu>,
- erik_read@qms1.life.uiuc.edu (erik read) wrote:
-
- > I have a friend who speaks english badly and does not choose words to
- > describe the letters. I think the military has a thing where they use
- > standardized, easily recognisable words, like alpha, bravo, charlie,
- > etc......
- > I myself do not know them all and I really think that this would help a
- > lot.
- > Can anyone help me? Is this the right place to be posting?
- >
- > Thanks in advance; Erik
-
-
- Alpha
- Bravo
- Charlie
- Delta
- Echo
- Foxtrot
- Golf
- Hotel
- India
- Juliette
- Kilo
- Lima
- Mike
- November
- Oscar
- Papa
- Quebec
- Romeo
- Sierra
- Tango
- Uniform
- Victor
- Whiskey
- X-Ray
- Yankee
-
- So I'm Kilo Delta One November Romeo
-
- --
- == Anthony_Pelliccio@Brown.edu (Tony Pelliccio, KD1NR)
- == Brown University Alumni & Development Computing Services
- == Box 1908, Providence, RI 02912 Tel. (401) 863-1880
- == I speak for myself, and not for Brown University. Remember that!
-
- ------------------------------
-
- Date: 11 Feb 1994 00:00:42 GMT
- From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!vixen.cso.uiuc.edu!gardner2.life.uiuc.edu!user@network.ucsd.edu
- Subject: A is for alpha.....
- To: info-hams@ucsd.edu
-
- I have a friend who speaks english badly and does not choose words to
- describe the letters. I think the military has a thing where they use
- standardized, easily recognisable words, like alpha, bravo, charlie,
- etc......
- I myself do not know them all and I really think that this would help a
- lot.
- Can anyone help me? Is this the right place to be posting?
-
- Thanks in advance; Erik
-
- ------------------------------
-
- Date: Thu, 10 Feb 1994 17:53:39 GMT
- From: netcomsv!netcom.com!greg@decwrl.dec.com
- Subject: Antenna Erection Aids - Thor's socks
- To: info-hams@ucsd.edu
-
- In article <9402091910.AA23952@rodgers.rain.com> lbrunson@rodgers.rain.COM writes:
- >certain applications. I use an old sock.
-
- 'In days of old, when hams were bold
- and sling-shots weren't perfected
- they'd put some rocks into a sock
- thus skyhooks were erected'
-
- Greg
-
- ------------------------------
-
- Date: Fri, 11 Feb 1994 20:52:50 GMT
- From: netcon!bongo!netcomsv!netcom.com!slay@locus.ucla.edu
- Subject: Copying High-Speed CW: Print or Script?
- To: info-hams@ucsd.edu
-
- : A mailing I read is involved in a comparision of the speeds of
- : printing and cursive writing. I decided to consult some experts.
- : So, all you high-speed CW ops, which do _you_ use?
-
- Cursive is definitely faster than printing. Using a keyboard is much
- faster still. The best is to copy in your head. For me, I'll use pencil
- and paper up til around 25 wpm; more likely a keyboard which is comfortable
- (for me) up til around 35-40 wpm. If you use a keyboard, at higher speeds
- you generally have to read the text of what you typed to know what you
- copied - it (the code) passes directly from your ears to you fingertips
- and doesn't stop off in the brain. ;-) For anything >40 wpm, I personally
- have to copy in my head and make notes, where possible, on paper.
- Cheers de Sandy WA6BXH/7J1ABV slay@netcom.com
-
- ------------------------------
-
- Date: Thu, 10 Feb 1994 02:14:34 MST
- From: mvb.saic.com!unogate!news.service.uci.edu!usc!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 07 February
- To: info-hams@ucsd.edu
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- DAILY SUMMARY OF SOLAR GEOPHYSICAL ACT
-
- 07 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 038, 02/07/94
- 10.7 FLUX=095.9 90-AVG=106 SSN=072 BKI=5546 6553 BAI=049
- BGND-XRAY=B1.1 FLU1=7.2E+06 FLU10=1.0E+04 PKI=4647 6553 PAI=054
- BOU-DEV=071,108,041,138,179,096,094,029 DEV-AVG=094 NT SWF=00:000
- XRAY-MAX= B8.2 @ 1415UT XRAY-MIN= A9.9 @ 1749UT XRAY-AVG= B1.7
- NEUTN-MAX= +000% @ 2325UT NEUTN-MIN= -004% @ 0830UT NEUTN-AVG= -1.7%
- PCA-MAX= +0.1DB @ 0610UT PCA-MIN= -0.3DB @ 1345UT PCA-AVG= -0.0DB
- BOUTF-MAX=55356NT @ 0209UT BOUTF-MIN=55280NT @ 1030UT BOUTF-AVG=55323NT
- GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+067,+000,+000
- GOES6-MAX=P:+137NT@ 1741UT GOES6-MIN=N:-099NT@ 0618UT G6-AVG=+089,+038,-035
- FLUXFCST=STD:097,099,102;SESC:097,099,102 BAI/PAI-FCST=025,025,020/033,025,020
- KFCST=5656 4343 4455 5333 27DAY-AP=015,020 27DAY-KP=2133 2543 4434 4433
- WARNINGS=*GSTRM
- ALERTS=**MINSTRM
- !!END-DATA!!
-
- NOTE: The Effective Sunspot Number for 06 FEB 94 was 45.0.
- The Full Kp Indices for 06 FEB 94 are: 4o 4o 3o 6o 6o 7o 5o 5o
- The 3-Hr Ap Indices for 06 FEB 94 are: 27 27 15 84 76 132 45 45
-
-
- SYNOPSIS OF ACT
- --------------------
-
- Solar activity remained very low. Region 7664 (S12W49)
- continued its growth and became a small class D group. This
- region produced several B-class events.
-
- Solar activity forecast: solar activity should become low
- with Region 7664 beginning to produce small C-class bursts. If
- the current pace of growth continues, small M-class flares
- could be observed in a few days from this region.
-
- STD: Electrons at greater than 2 MeV have become elevated. The
- enhancement began at about mid-day on the 7th. The enhancement
- appears to be approximately similar in intensity to what was observed
- at this time during the last solar rotation. If flux levels continue
- to remain strongly enhanced over the next week as occurred last
- rotation, geosynchronous satellite anomalies may be observed.
-
- Geomagnetic storm conditions continued. Mid latitudes
- experienced minor to major storm levels. High latitude
- conditions ranged between active and severe storm levels.
- The Forbush decrease noted yesterday returned to a near
- normal level.
-
- Geophysical activity forecast: the geomagnetic field
- should become predominantly active for the next three days.
- Isolated periods at minor to major storm are forecast for
- mid latitudes and isolated major to severe storm periods
- are possible for high latitudes.
-
- Event probabilities 08 feb-10 feb
-
- Class M 05/05/05
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
-
- Geomagnetic activity probabilities 08 feb-10 feb
-
- A. Middle Latitudes
- Active 35/35/35
- Minor Storm 35/35/35
- Major-Severe Storm 20/20/20
-
- B. High Latitudes
- Active 30/30/30
- Minor Storm 40/40/40
- Major-Severe Storm 20/20/20
-
- HF propagation conditions were significantly below normal
- over almost all regions today. Strong geomagnetic and auroral
- storming produced radio blackout conditions for transpolar and
- transauroral circuits. Absorption was widespread and
- relatively strong today. The storming raised LUFs and lowered
- MUFs. MUFs were decreased by between 30 and 50 percent over
- most regions. Fair to poor propagation was observed over even
- the low latitudes. Middle latitudes saw fair to very poor
- propagation. Storming is still in progress at the present
- time, although it is expected to subside slightly, later on 08
- February. A return to near-normal conditions is not expected
- for several days yet, except over the lower latitudes where
- near-normal conditions may return on 09 February. Higher
- latitudes will require additional time to recover from this
- ionospheric storm.
-
-
- COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
- ========================================================
-
- REGIONS WIT
- -----------------------------------------------------------
- NMBR LOCATION LO AREA Z LL NN MAG TYPE
- 7664 S11W28 014 0130 DAO 09 020 BET
- 7665 N04W24 010 0020 HSX 02 002 ALPHA
- 7666 N18W08 354 0090 CSO 08 005 BET
- 7667 S08W04 350 0020 BXO 05 005 BET
- REGIONS DUE TO RET
- NMBR LAT
- 7657 N10 234
- 7652 N04 221
-
-
- LISTING OF SOLAR ENERGETIC EVENTS FOR 07 FEBRUARY, 1994
- -------------------------------------------------------
- BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP
- NONE
-
-
- POSSIBLE CORONAL MASS EJECTION EVENTS FOR 07 FEBRUARY, 1994
- -----------------------------------------------------------
- BEGIN MAX END LOCATION TYPE SIZE DUR II IV
- NO EVENTS OBSERVED
-
-
- INFERRED CORONAL HOLES. LOCATIONS VALID AT 07/2400Z
- ---------------------------------------------------
- ISOLATED HOLES AND POLAR EXT
- EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
- NO DAT
-
-
- SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz
- ------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
- 06 Feb: 0742 0747 0755 SF 7664 S10W24
- 0812 0816 0820 B5.0 SF 7664 S10W25
- 1252 1313 1328 B7.9 SF 7664 S13W30
- 1650 1654 1659 B1.6
-
-
- REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- C M X S 1 2 3 4 Total (%)
- -- -- -- -- -- -- -- -- --- ------
- Region 7664: 0 0 0 3 0 0 0 0 003 (75.0)
- Uncorrellated: 0 0 0 0 0 0 0 0 001 (25.0)
-
- Total Events: 004 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: Thu, 10 Feb 1994 03:04:36 MST
- From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!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 08 February
- To: info-hams@ucsd.edu
-
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
-
- DAILY SUMMARY OF SOLAR GEOPHYSICAL ACT
-
- 08 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 039, 02/08/94
- 10.7 FLUX=095 90-AVG=106 SSN=085 BKI=6555 6445 BAI=050
- BGND-XRAY=B1.2 FLU1=5.1E+06 FLU10=2.3E+04 PKI=6566 6455 PAI=056
- BOU-DEV=151,086,106,083,130,059,055,073 DEV-AVG=092 NT SWF=00:000
- XRAY-MAX= B7.3 @ 1614UT XRAY-MIN= A7.5 @ 0206UT XRAY-AVG= B1.8
- NEUTN-MAX= +002% @ 1325UT NEUTN-MIN= -003% @ 1105UT NEUTN-AVG= -0.5%
- PCA-MAX= +0.1DB @ 1800UT PCA-MIN= -0.2DB @ 1040UT PCA-AVG= -0.0DB
- BOUTF-MAX=55355NT @ 2359UT BOUTF-MIN=55306NT @ 1718UT BOUTF-AVG=55330NT
- GOES7-MAX=P:+000NT@ 0000UT GOES7-MIN=N:+000NT@ 0000UT G7-AVG=+058,+000,+000
- GOES6-MAX=P:+122NT@ 1521UT GOES6-MIN=N:-099NT@ 0704UT G6-AVG=+084,+041,-037
- FLUXFCST=STD:097,098,100;SESC:097,098,100 BAI/PAI-FCST=025,020,020/035,025,025
- KFCST=4455 6423 4345 4433 27DAY-AP=020,021 27DAY-KP=4434 4433 4433 5334
- WARNINGS=*GSTRM;*AURMIDWCH
- ALERTS=**MAJSTRM
- !!END-DATA!!
-
- NOTE: The Effective Sunspot Number for 07 FEB 94 was 25.0.
- The Full Kp Indices for 07 FEB 94 are: 4o 6- 4+ 7- 6o 5o 5- 3o
- The 3-Hr Ap Indices for 07 FEB 94 are: 30 65 35 109 86 51 42 16
-
-
- SYNOPSIS OF ACT
- --------------------
-
- Solar activity remained very low. New Region 7668
- (N09E50) emerged rapidly and produced several optical flares
- with B-class enhancements. Region 7664 (S14W62), which was
- growing rapidly on 07 Feb, stabilized during the period. A lack
- of data is inhibiting analysis.
-
- Solar activity forecast: solar activity should become
- generally low. Region 7668 is becoming a likely candidate for
- low C-class subflares. Old Region 7654 is due at the east
- limb at the end of the period and should start to elevate
- activity levels at that time. Last rotation, Region 7654
- produced four M-class and many C-class events.
-
- The geomagnetic field was at active to major storm levels.
- Some high latitude sites experienced severe storm conditions.
- The severity of this disturbance appeared to be moderating
- toward the end of the period. More frequent active to
- unsettled k indices were observed at various observatories.
-
- Geophysical activity forecast: the geomagnetic field
- should become predominantly active for the duration of the
- forecast period. Occasional minor to major storm periods are
- likely. The coronal hole responsible for this disturbance is
- quite elongated and disturbed geomagnetic conditions should
- be expected for approximately one week.
-
- Event probabilities 09 feb-11 feb
-
- Class M 01/01/01
- Class X 01/01/01
- Proton 01/01/01
- PCAF Green
-
- Geomagnetic activity probabilities 09 feb-11 feb
-
- A. Middle Latitudes
- Active 35/35/35
- Minor Storm 35/35/35
- Major-Severe Storm 10/10/10
-
- B. High Latitudes
- Active 35/35/35
- Minor Storm 35/35/35
- Major-Severe Storm 15/15/15
-
- HF propagation conditions were disturbed over most regions
- today. A moderate ionospheric storm is in progress. MUFs are
- depressed and LUFs are raised, decreasing the available
- bandwidth and resulting in more difficult communications,
- particularly for transpolar and transauroral circuits where
- propagation has been useless for a good part of the UTC day.
- Conditions are expected to remain disturbed over the next 24 to
- 48 hours before very gradually improving. Conditions are not
- expected to return to near-normal for at least several days,
- perhaps extending beyond 5 to 7 days.
-
-
- COPIES OF JOINT USAF/NOAA SESC SOLAR GEOPHYSICAL REPORTS
- ========================================================
-
- LISTING OF SOLAR ENERGETIC EVENTS FOR 08 FEBRUARY, 1994
- -------------------------------------------------------
- BEGIN MAX END RGN LOC XRAY OP 245MHZ 10CM SWEEP
- 1044 1044 1045 160
-
-
- POSSIBLE CORONAL MASS EJECTION EVENTS FOR 08 FEBRUARY, 1994
- -----------------------------------------------------------
- BEGIN MAX END LOCATION TYPE SIZE DUR II IV
- NO EVENTS OBSERVED
-
-
- INFERRED CORONAL HOLES. LOCATIONS VALID AT 08/2400Z
- ---------------------------------------------------
- ISOLATED HOLES AND POLAR EXT
- EAST SOUTH WEST NORTH CAR TYPE POL AREA OBSN
- NO DAT
-
-
- SUMMARY OF FLARE EVENTS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- Date Begin Max End Xray Op Region Locn 2695 MHz 8800 MHz 15.4 GHz
- ------ ---- ---- ---- ---- -- ------ ------ --------- --------- ---------
- 07 Feb: 0217 0225 0231 B4.3
- 0449 0454 0459 B6.4 SF 7664 S12W39
- 0854 0858 0905 B2.4
- 1251 1257 1259 B3.9
- 1357 1414 1432 B8.2 SF 7664 S12W42
- 1404 1414 1427 B8.6
-
-
- REGION FLARE STATISTICS FOR THE PREVIOUS UTC DAY
- ------------------------------------------------
-
- C M X S 1 2 3 4 Total (%)
- -- -- -- -- -- -- -- -- --- ------
- Region 7664: 0 0 0 2 0 0 0 0 002 (33.3)
- Uncorrellated: 0 0 0 0 0 0 0 0 004 (66.7)
-
- Total Events: 006 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, 11 Feb 1994 14:04:42 GMT
- From: sgiblab!twg.com!eco.twg.com!psinntp!laidbak!tellab5!jwa@ames.arpa
- Subject: Hamblaster update
- To: info-hams@ucsd.edu
-
- The Hamblaster Update
-
- Over the past several months I posted updates about a
- DSP "The Hamblaster" that Will Torgrim (N9PEA) and myself
- are developing.
-
- We are focusing our efforts on a packet modem that allows
- the user to improve H.F. reception by interfacing the Ham-
- blaster (a PC compatable DSP sound board) to a transceiver
- and a packet or all mode TNC. Modems/filters for RTTY,
- Packtor, Amtor are also under developement and are compatable
- with the same control panal software.
-
- Here are the latest developements
- 2-10-94
-
- Several weeks ago I mentioned that the projected cost for
- the board would be about $350.00. It was just a
- "guessestmate". It looks like it will be more in the $275.00
- range and could be as low as $250.00. This may still sound
- high compared to the Soundblaster or other sound cards, but
- you have to remember that it's made exclusivly for Ham Radio
- and it won't have the volume (sales) of other sound cards.
- I would also like to point out that it's not just software.
- It's a sound card with a DSP and a digital port that can
- interface to a TNC. The DSP is used as an improved filter
- for Packet or RTTY and other digital modes. It unless there's
- a way to interface it with Baycom, it cannot copy packet
- without a TNC.
-
-
- 1) External Power supply
-
- I think one feature that separates the Hamblaster
- from other sound boards is it's ability to run on
- an external 12 volt supply. When a filter or modem
- is loaded, You can turn off the computer and
- Hamblaster keeps on going and going and going!
-
- When it's connected to a PK-232, there's no need
- to keep the computer on in order to keep the DSP
- alive. Right now, my PK232/Hamblaster is runing
- and it's been operating for about 5 days
-
-
- 2) Adaptive (LMS) filter
-
- There's ongoing developement in this area. We are
- planing (I don't think this has been done before)
- to add controls to the LMS algorithm.
-
- 3) Soundblaster compatibility
-
- The Hamblaster IS NOT soundblaster compatible.
- It was designed that way so that it will run
- independant of other sound boards. I can still
- use my Soundblater to record sound, play music,
- load software from the CD or use the midi interface.
- At the same time, I can receive packets or use
- a DSP filter with my Ham equipment.
-
- ---
- Jack Albert Fellow Radio Hacker
- Tele (708) 378-6201
- Tellabs Operations, Inc. FAX (708) 378-4590
- 1000 Remington Blvd. jwa@tellabs.com
- Bolingbrook, IL 60440
- *
- * *
- * * *
- * * * * * * *
- * * *
- * *
- *
- THE BOWTIE FILTER
-
- ------------------------------
-
- Date: 11 Feb 94 18:55:16 GMT
- From: yale.edu!noc.near.net!news.delphi.com!BIX.com!hamilton@yale.arpa
- Subject: Long range digital links
- To: info-hams@ucsd.edu
-
- br@cs.cmu.edu (Bill Ross) writes:
-
-
- > Can any of you radio folks give me a hand with this?
-
- > I need a system capable of transmitting about 1 MegaBit per second
- > of digital data from anywhere on the planet. This would be a one-way
- > link. I'm sure this can be done, but can it be done reliably without
- > a satellite and lots of very fancy gear? If so, I have some questions:
-
- > How much might the equipment to do this cost?
- > How much would this equipment (the transmitter) weigh?
- > How much volume would this equipment (transmitter) occupy?
- > How much power would the transmitter require during operation?
- > How big would the antenna have to be?
-
- > If the problem is simplified to communicate within a single hemisphere,
- > does that make life alot easier?
-
- > Any information would be a great help!
- > Thanks very much!
- > Bill
-
- I think you'd have a better chance of doing this if your last name
- was Gates, not Ross. Does that help you guess what sort of cost we're
- talking about?
-
- Seriously, there's no way to do this except with a satellite or a land
- line (probably a fiber) and lots of very fancy, very expensive gear.
- There's no way at all to do this with radio. HF can often propogate
- to anywhere on the planet via skywave (bouncing off the ionosphere)
- but not reliably and there's no way anyone's going to give you the
- spectrum you need to move 1Mbit/sec that way (we're talking international
- treaty kind of limitations!) There's enough spectrum if you can use
- UHF or higher frequencies, but these are line-of-sight only, which is
- why you need a satellite.
-
- I suggest it's time to reconsider whether this is really something
- you "need". :-)
-
- Regards,
- Doug Hamilton hamilton@bix.com Ph 508-358-5715
- Hamilton Laboratories, 13 Old Farm Road, Wayland, MA 01778-3117
-
- ------------------------------
-
- Date: Fri, 11 Feb 94 10:14:56 -0800
- From: netcon!bongo!netcomsv!lavc!steven.rosenberg@locus.ucla.edu
- Subject: NUDE AMATEUR RADIO CL
- To: info-hams@ucsd.edu
-
- >Gary Davis (gdavis@griffin.uvm.edu) wrote:
- >: I heard a strange story on the CBC last evening. The report was on
- >: the increasing interest in nudism in the Winter months. To promote
- >: this festive and relaxing activity additional interests where specified.
- >
- >: There is, according to the CBC, a nudist amateur radio club.
- >
- >Is this like 'operating barefoot'? Where to they clip the HT's external
- >speaker-mike? ;->
- >
- >k4adl
- >
-
- I guess these folks have extensive experience with EME -- what's a
- little moonbounce between friends?
-
- KC6FYL
-
- ------------------------------
-
- Date: Tue, 8 Feb 1994 20:09:53 GMT
- From: netcomsv!netcom.com!slay@decwrl.dec.com
- Subject: which is better qrp band--30 or 40?
- To: info-hams@ucsd.edu
-
- mtrail@violet.berkeley.edu wrote:
- : The title says it all. Which band do you qrp'ers
- : prefer?
-
- For questions on QRP - I suggest a good source of info is the QRP reflector.
- To subscribe to the mailing list, simply send an e-mail msg to:
-
- qrp-request@think.com
-
- I can't recall if you should only enter SUBSCRIBE or also include info
- on yourself (e.g. name, call, qrp rig, etc).
- Cheers de Sandy WA6BXH/7J1ABV
-
- ------------------------------
-
- Date: 11 Feb 1994 00:07:43 GMT
- From: mvb.saic.com!unogate!news.service.uci.edu!usc!howland.reston.ans.net!news.intercon.com!udel!news.sprintlink.net!news.clark.net!andy@network.ucsd.edu
- To: info-hams@ucsd.edu
-
- References <gdavis.760825204@griffin>, <2jd6kj$mqt@clarknet.clark.net>, <mosier.83.0@fagan.uncg.edu>ews.int
- Subject : Re: Nude amateur radio clubs
-
- Stephen Mosier (mosier@fagan.uncg.edu) wrote:
- : In article <2jd6kj$mqt@clarknet.clark.net> andy@clark.net
- : (Andrew M. Cohn) writes:
-
- : >: There is, according to the CBC, a nudist amateur radio club.
- : >
- : >Is this like 'operating barefoot'? Where to they clip the HT's external
- : >speaker-mike? ;->
-
- : Where do they hang the HT??
-
- : steve
- : mosier@fagan.uncg.edu
-
- That should be obvious. ;-> -andy
-
- ------------------------------
-
- End of Info-Hams Digest V94 #145
- ******************************
-