HDTenEightyP/NetNews huggingface dataset:
From: nuke@reed.edu (Bill Newcomb)
Newsgroups: alt.radio.pirate
Subject: Re: Looking for 10 watt FM transmitter
Date: 27 Sep 92 00:09:56 GMT
Organization: Reed College, Portland, OR

In article <a!!pwr-.ser@netcom.com> ser@netcom.com (Steve Rubin) writes:

>I just picked up an old RCA exciter (10-15 watts).  From someone for
>$35.  Stuff is out there, its just a matter of finding it :).  Although,
>my intentions werent for a pirate station.. but still..

Oh, Jeez, I hope it wasn't an RCA BTE-15. Our station (KRRC-FM, Kommunismus
Radio Reed College, Portland, OR) had one of these up to a year before I got
here. Evidently it was a nightmare, though if you enjoy tinkering, you won't
be disappointed. Luckily we replaced it with a Collins--er, Continental.
That is a damn good exciter, even running into a mismatched load. Collins
gear has a rep for being really solid--look for it.

nuke@reed.edu
--
~/.oo
Newsgroups: alt.radio.pirate
From: Richard Zimmerman <YAQX@cornella>
Subject: Transmitter Schematic
X-Xxdate: Fri, 2 Oct 92 18: 29:20 GMT
Nntp-Posting-User: rsz1@cornell.edu
Organization: Cornell University
X-Useragent: Nuntius v1.1.1d7
Date: Fri, 2 Oct 1992 17:24:18 GMT

Does anyone know where one might obtain a schematic for a FM transmitter
with output of around 1 Watt?  I've looked at the commercially available
models and decided that I couldn't afford one.  Any information would be
greatly appriciated...

 ---Richard Zimmerman (rsz1@cornell.edu)
Newsgroups: alt.radio.pirate
From: kludge@grissom.larc.nasa.gov (Scott Dorsey)
Subject: Re: Transmitter Power
Organization: NASA Langley Research Center and Reptile Farm
Date: Wed, 30 Sep 1992 13:51:15 GMT

In article <1992Sep30.070752.2687@nmsu.edu> mmalenfa@dante.nmsu.edu (Michael Malenfant) writes:
>I was wondering, and this is probably the wrong place to ask, but...
>I was driving around and i could get they station where i dj (college, why
>i don't ask them, i don't know...) for about 15-20 miles out from the
>transmitter on a clear afternoon...the effiency rating is .537...
>what is our transmitter power???
>i don't ask there because no one would know...

Okay, there are a number of ways you can determine your power.

Since you know how far away you can hear the station, if you know what the
input sensitivity of the receiver is, you can calculate the field strength
at a given distance, and estimate the field strength at the antenna, which
you can calculate the (estimated) power from.  The accuracy of this depends
on how even your terrain is; the free-space calculations don't work at all
when you start talking about propagation in a big city with a lot of 
reflective buildings.

Since you know the efficiency rating of the transmitter, you could take
the plate current and voltage and determine the output power.  You could
even check the current on the AC input and get a jackleg estimate.

However, since you are a licensed station, you need to be keeping PeP
measurements every hour on the transmitter log.  You are doing that,
aren't you?  The FCC does require that you do so.  So you could check
the transmitter log or the forward power meter on the transmitter
(or on the reflectometer following the transmitter if it's not built-in).
--scott
From: ah157@cleveland.Freenet.Edu (Rob Henry)
Newsgroups: alt.radio.pirate
Subject: Re: HELP ME...HEP ME!
Date: 6 Oct 1992 14:58:16 GMT
Organization: Case Western Reserve University, Cleveland, Ohio (USA)
NNTP-Posting-Host: slc4.ins.cwru.edu


Well,from reading the fm 10 data sheet posted by mycal,a 70mw amp get 1.5
miles of solid coverage.
5 watts should get you considerably more.
From: wells@hpfcso.FC.HP.COM (John Wells)
Date: Mon, 28 Sep 1992 16:22:09 GMT
Subject: Re: Re: Jamming
Organization: Zanzor of the CLOUDS
Newsgroups: alt.radio.pirate

In alt.radio.pirate, collins@socrates.umd.edu (Jim C) writes:

> Legalities aside, I believe if you have a radio, you have a jammer, 
> that is (correct me, please) radio "a" is tuned to a frequency
> and radio "b" is then tuned to another frequency, radio "a" will be jammed.
> How you arrive at the frequency for radio "b", I've totally forgotten.
> Add 1600? Subtract 1600? sorry, someone will have to fill in the gaps...

For most(*) AM radios, the Local Oscillator(LO) is +455 khz above where 
the radio tunes... If radio A is set to 560 khz... radio B set to receive at
1015 khz would more than likely pickup the LO.

For most(*) FM radios, the LO is +10.7 mhz above the received frequency.... 
Radio A on 88.3 mhz would radiate a little RF at the LO frequency of 99 mhz
which radio B could pick up.

(*) The reason I say 'most' is that there are a number of receivers that use
multiple IF conversion techniques and some have odd IF conversion schemes.
In general the cheep AM/FM pocket radio will have the characteristics mentioned
above for the LO setting.

Newsgroups: alt.radio.pirate
From: asdmf@acad2.alaska.edu
Subject: HELP ME...HEP ME!
Organization: University of Alaska
Date: Mon, 5 Oct 1992 15:48:05 GMT

Does anyone know the legallities of makeing multiple 5watt transmitters on the
fm band to increase your range of operations...5watts might get you out 1mile I
was thinking that if i made enough of them i could have a radio station....

+=====================+=======================================================+
|Don Fanning          |	In a fit of Sexual Deprivation, Jim Spreads ALPO(tm)  |
|Computer Sci. Major  | on his penis and walk towards the dog.....            |
|Taco HeLL Phreak!    | **I am not a power user, just a user of POWER!**      |
|                     |              **AMIGA POWER**			      |
+=====================+=======================================================+
| University of Alaska - Anchorage......Sigh, I know, I know................. |
+=============================================================================+

..click..


Newsgroups: alt.radio.pirate
From: nuke@reed.edu (Bill Newcomb)
Subject: Re: Transmitter Power
Organization: Reed College, Portland, OR
Date: Wed, 30 Sep 1992 21:53:43 GMT

In article <1992Sep30.131859.43469@kuhub.cc.ukans.edu> whitten@kuhub.cc.ukans.edu writes:
>
>Are we sure about this.  It's my understanding that there used to be
>10 watt stations but sometime ago, FCC made them all move up to
>100 watts or turn off.  We're a 100 watt non-commercial. Yet to be
>moved around. And not required to make hourly power measurements.
>We get about double the coverage mentioned by the one fellow, (we get
>about 45 miles from the transmitter height)  Our transmitter output
>power is 130 watts with an effective radiated power of 100 watts.

I'm positive, as we are on our umpteenth special temporary authorization,
while we have been trying to move our transmitter site. No new apps for
class D are being accepted, but we were grandfathered in. You guys are class
A, notice you're between 88 & 92 MHz. The minimum power requirement for
class A is 100 watts, amended later to be allowed to be less if you cover a
certain number of listeners. 

We want to move our xmtr to a spot hig on a hill across town, on a friendly
rock station's tower. Unfortunately, the FCC has tried to back-apply the
abovementioned amendment to us, saying that although we would still only
have 10 watts TPO, we would reach too many people, and thus would be
considered class A. The class A band in Portland is stuffed, so they say we
can't do it. We are in the process of appealing.

The FCC is not keen on class D stations as a rule, and will try to bump them
up to class A when they can. maybe with cuts in federal funding to public
stations, a spot will open up in the non-com band for us. 

Until, then, at 104.1 MHz, the ten watts that shook the campus, KRRC-FM, PDX

nuke@reed.edu
--
~/.oo
Newsgroups: alt.radio.pirate
From: kludge@grissom.larc.nasa.gov (Scott Dorsey)
Subject: Re: Transmitter Power
Organization: NASA Langley Research Center and Reptile Farm
Date: Wed, 30 Sep 1992 21:05:30 GMT

In article <1992Sep30.131859.43469@kuhub.cc.ukans.edu> whitten@kuhub.cc.ukans.edu writes:
>Are we sure about this.  It's my understanding that there used to be
>10 watt stations but sometime ago, FCC made them all move up to
>100 watts or turn off.  We're a 100 watt non-commercial. Yet to be
>moved around. And not required to make hourly power measurements.

No, I think he's right about that (and I thank him for the correction, by
the way).  The class D license was abolished by the FCC a while back, mostly
due to lobbying from NPR.  However, there are still a few stations out there
with old 10W class D licenses that haven't been upgraded.

As far as hourly power measurements go, the old class D stations were exempt.
I believe that all A, B, and C stations are currently required to make power
measurements, but I'll have to check the rules and make sure about that.  I
do know that it's always a good idea to take power measurements on the hour
(as well as reflected power, plate current and screen voltage) since it will
permit prediction of impending transmitter failure in a lot of cases.  Even
if you are running a class D 10W station, transmitter readings are 
recommended.
--scott
Newsgroups: alt.radio.pirate
From: cixc0000@ucselx.sdsu.edu (Karyn Nelson)
Subject: Ramsey tv-6
Organization: San Diego State University Computing Services
X-Newsreader: Tin 1.1 PL4
Date: Tue, 29 Sep 1992 17:51:26 GMT


Does anyone have a list of mods for the Ramsey tv-6? This is the kit that 
takes an audio and video input, and transmits it as channel 2,3,4,5 or 6.
I am interested in getting the same type of coverage with it as people are
now able to get with their FM-10. Thanks .

							Karyn N.
From: mmalenfa@dante.nmsu.edu (Michael Malenfant)
Newsgroups: alt.radio.pirate
Subject: Transmitter Power
Date: 30 Sep 92 07:07:52 GMT
Organization: New Mexico State University, Las Cruces, NM

I was wondering, and this is probably the wrong place to ask, but...
I was driving around and i could get they station where i dj (college, why
i don't ask them, i don't know...) for about 15-20 miles out from the
transmitter on a clear afternoon...the effiency rating is .537...
what is our transmitter power???
i don't ask there because no one would know...

mmalenfant@nmsu.edu
"oh shit, we're on the air..."
From: wa2ise@cbnewsb.cb.att.com (robert.f.casey)
Newsgroups: alt.radio.pirate
Subject: first pirate TV station?
Date: 29 Sep 92 22:45:05 GMT
Organization: AT&T

Back in about 1977, some students at Syracuse University in upstate NY
put up (for a weekend) what may have been the first pirate TV station.
On channel 7, an otherwise empty channel.  "Lucky 7" if I remember
right.  (I tried to tune it in, but got a weak snowy picture).  
It was said that they played stuff like Star Trek's, movies like
"Annie Hall", and some porno.  (This was about the time VCRs were
first comming out).  
An article in the _New York Times_ was written about this station.
(No, don't remember what date).
From: whitten@kuhub.cc.ukans.edu
Newsgroups: alt.radio.pirate
Subject: Re: Transmitter Power
Date: 30 Sep 92 13:18:59 CDT
Organization: University of Kansas Academic Computing Services

In article <1992Sep30.174915.25393@reed.edu>, nuke@reed.edu (Bill Newcomb) writes:
> In article <BvE95G.BrJ@news.larc.nasa.gov> kludge@grissom.larc.nasa.gov (Scott Dorsey) writes:
>>In article <1992Sep30.070752.2687@nmsu.edu> mmalenfa@dante.nmsu.edu (Michael Malenfant) writes:
>>>what is our transmitter power???
> 
>>However, since you are a licensed station, you need to be keeping PeP
>>measurements every hour on the transmitter log.  You are doing that,
>>aren't you?  The FCC does require that you do so.  So you could check
> 
> This is not required of Class D non-commercial educational stations. If your
> station falls into this class, aside from getting bumped around the dial by
> big christian repeater stations with more money, your Transmitter power
> output is Ten watts (That's Ten Thousand Mighty Milliwatts, an' don't you
> forget it!), which is probably a bit less than your Effective radiated
> power, since most antennae have a gain factor associated with them which
> comes from no radiating power skyward or into the ground, etc.

Are we sure about this.  It's my understanding that there used to be
10 watt stations but sometime ago, FCC made them all move up to
100 watts or turn off.  We're a 100 watt non-commercial. Yet to be
moved around. And not required to make hourly power measurements.
We get about double the coverage mentioned by the one fellow, (we get
about 45 miles from the transmitter height)  Our transmitter output
power is 130 watts with an effective radiated power of 100 watts.

Regards,
Chris
90.7 KJHK, Lawrence


==============================================================================
 WHITTEN@KUHUB.CC.UKANS.EDU                  Chris Whittenburg, N0TWA
 WHITTEN@UKANVAX.bitnet              Univ. of Kansas - Electrical Engineering
==============================================================================



==============================================================================
 WHITTEN@KUHUB.CC.UKANS.EDU                  Chris Whittenburg, N0TWA
 WHITTEN@UKANVAX.bitnet              Univ. of Kansas - Electrical Engineering
==============================================================================
From: mycal@netronix.com (Mycal Johnson)
Newsgroups: alt.radio.pirate
Subject: ROLM BA1404 Data Sheet
Distribution: world
Date: Fri, 02 Oct 92 16:37:33 GMT
Organization: Netronix, Inc.


Does anyone have the ROLM BA1404 Data Sheets?  I have asked ROLM for them
buy haven't received anything.

My question is do they give examples of a crystal osc hooked up to the
BA1404?

I would like to experiment with this using a vxo.  Any Ideas pleas let me
know.

thanx,
mycal


California Ballot Recommendations -- by your pal mycal@netronix.com
-----------------------------------------------------------------------------
Prop. 155- NO   Prop. 156- NO   Prop. 157- NO   Prop. 158- NO   Prop. 159- NO
Prop. 160- YES  Prop. 161- YES  Prop. 163- YES  Prop. 164- YES  Prop. 165- YES
Prop. 166- NO   Prop. 167- NO
  Cut Government Spending, Cut Government Control, Cut Govenment period.
Newsgroups: alt.radio.pirate
From: ser@netcom.com (Steve Rubin)
Subject: Re: Looking for 10 watt FM transmitter
Organization: Netcom - Online Communication Services (408 241-9760 guest)
Date: Sat, 3 Oct 1992 14:50:33 GMT

In article <1992Sep27.000956.25268@reed.edu> nuke@reed.edu (Bill Newcomb) writes:
>In article <a!!pwr-.ser@netcom.com> ser@netcom.com (Steve Rubin) writes:
>
>>I just picked up an old RCA exciter (10-15 watts).  From someone for
>>$35.  Stuff is out there, its just a matter of finding it :).  Although,
>>my intentions werent for a pirate station.. but still..
>
>Oh, Jeez, I hope it wasn't an RCA BTE-15. Our station (KRRC-FM, Kommunismus
>Radio Reed College, Portland, OR) had one of these up to a year before I got
>here. Evidently it was a nightmare, though if you enjoy tinkering, you won't
>be disappointed. Luckily we replaced it with a Collins--er, Continental.
>That is a damn good exciter, even running into a mismatched load. Collins
>gear has a rep for being really solid--look for it.
>
>nuke@reed.edu
>--
>~/.oo

Nahh.. its a BTC-10C.  I like Collins stuff.  We had a really old Collins
console that worked right up until we got a new one (30 something years..).
This exciter has some mod's to it to make it work better.  Works for me :).

-- 
___________________________________________________________________________
Steve Rubin			    ser@netcom.com, support@netcom.com
KARA/KLIV, KJCC		            Netcom - Technical Support Staff
From: uni@acs.bu.edu (Shaen Bernhardt)
Newsgroups: alt.radio.pirate
Subject: Sorry all:
Date: 1 Oct 92 23:03:52 GMT
Organization: Boston University, Boston, MA, USA


>mycal>
>-----------------------------------------------------------------------------
>                                     ?
>Pirate Radio?  Whats that?        @ o o @                mycal@netronix.com
>                                     O
>
>                            Just Say Know to Drugs.


(sorry everyone, if I could think of another way.....)
For some reason all mail to you bounces....
Can you drop me a line?

uni@acs.bu.edu
Newsgroups: alt.radio.pirate
From: asdmf@acad2.alaska.edu
Subject: Re: HELP ME.....
Organization: University of Alaska
Date: Tue, 6 Oct 1992 19:46:24 GMT

But my question is that "Is it legal?"  I want to set up a chain of repeaters
up here in anchorage and then it will be able to transmitt an overall farther
range without breaking (maybe bending but not breaking) the law..
From: mycal@netronix.com (Mycal Johnson)
Newsgroups: alt.radio.pirate
Subject: Ramsey tv-6 
Distribution: world
Date: Wed, 30 Sep 92 16:35:12 GMT
Organization: Netronix, Inc.


In article <1992Sep29.175126.24209@ucselx.sdsu.edu> cixc0000@ucselx.sdsu.edu writes:

  > 
  > 
  > Does anyone have a list of mods for the Ramsey tv-6? This is the kit that 
  > takes an audio and video input, and transmits it as channel 2,3,4,5 or 6.
  > I am interested in getting the same type of coverage with it as people are
  > now able to get with their FM-10. Thanks .
  > 
  >                                                         Karyn N.
  > 
  > 

I have played with it a bit, and doubled the output power by replaceing
the rf-amp transistors with mrf-901's (you could use other vhf/uhf
transistors.)

I haven't checked it for range but the TV-6 puts out much more power than
the FM-10 on the order of 100mw, close to 200mw with the 901's.

6 meter ham amps could be used for the lower channels 2,3,4 maybe even 5 and
6.  And the PA-1 kit could be used too. (it is easyer to lower the freq than
increase it.)

Well if there is any other tv-6 hackers out there let us know whats up.


mycal


-----------------------------------------------------------------------------
                                     ?
Pirate Radio?  Whats that?        @ o o @                mycal@netronix.com
                                     O

                            Just Say Know to Drugs.
Newsgroups: alt.radio.pirate
From: nuke@reed.edu (Bill Newcomb)
Subject: Re: Transmitter Power
Organization: Reed College, Portland, OR
Date: Wed, 30 Sep 1992 17:49:15 GMT

In article <BvE95G.BrJ@news.larc.nasa.gov> kludge@grissom.larc.nasa.gov (Scott Dorsey) writes:
>In article <1992Sep30.070752.2687@nmsu.edu> mmalenfa@dante.nmsu.edu (Michael Malenfant) writes:
>>what is our transmitter power???

>However, since you are a licensed station, you need to be keeping PeP
>measurements every hour on the transmitter log.  You are doing that,
>aren't you?  The FCC does require that you do so.  So you could check

This is not required of Class D non-commercial educational stations. If your
station falls into this class, aside from getting bumped around the dial by
big christian repeater stations with more money, your Transmitter power
output is Ten watts (That's Ten Thousand Mighty Milliwatts, an' don't you
forget it!), which is probably a bit less than your Effective radiated
power, since most antennae have a gain factor associated with them which
comes from no radiating power skyward or into the ground, etc.

Your engineer may or may not know the entire story. I used to know for our
station, but we got bounced to a new frequency, without funds to get our
antenna retuned, and had to tune it at the bottom of our transmission line
with a stub.Now our final voltage wanders around depending on the temp and
humidity. bleh. 

nuke@reed.edu
--
~/.oo
Newsgroups: alt.radio.pirate
From: pschleck@cwis.unomaha.edu (Paul W Schleck KD3FU)
Subject: Re: FCC Regulations (a little long, but informative)
Keywords: FCC, Part 15, Part 73
Organization: University of Nebraska at Omaha
Distribution: us
Date: Fri, 2 Oct 1992 03:41:07 GMT

ornitz@kodak.kodak.com (Barry Ornitz) writes:

>Since the field-strength/power restrictions tend to be confusing to most
>people without antenna expertise, Paul Schenck, who maintains many of the
>amateur radio FAQ lists has asked me to write an article on the subject.  I
>plan to do this real soon now... it is on my list of things to do...  really...
>{don't hit me again, Paul!}.  I have verified that my computer models do
>agree with several cases where analytical solutions are possible so I hope
>to crank out the data and write the article soon (after some business trips).

Oh sheesh!  Now everyone will *REALLY* think I am some kind of net
slave-driver/control-freak! :-)  Seriously, I asked Barry really nicely
(and just once) and he readily agreed.  Thanks for your volunteerism,
Barry!

73, Paul W. Schleck, KD3FU
               ^^^ (note spelling)

pschleck@unomaha.edu
From: rod@array.com (Rod Hofer)
Newsgroups: alt.sb.programmer
Subject: Re: Problem with SB 2.0 on 486-50.
Summary: I have similar problems with my 50 MHz - DX2
Date: 27 Sep 92 19:13:56 GMT
Organization: Array Microsystems, Colorado Springs, CO. USA



> [lwr@vax1.mankato.msus.edu] writes
>
>  This is not exactly a *programming* related question, but I don't know of a
>better group to ask this from.  A friend of mine who has a 486-50 (a DX2 I
>believe) just bought a SB 2.0 and is having problems with it.  I haven't had a
>chance to plug the SB into my 386sx-16 (which works just fine with my SB) to
>see if the card is faulty.

I have a similar problem.  I recently bought a Gateway 2000 50 MHz DX2 
machine and I transferred my SB Ver 2.0 to the new PC.  My old PC was
a 386SX-16 and the card never experienced a single problem.  However,
on the new PC I have had some problems with some programs (mostly games).
Occasionally, the sound reverts back to the PC internal speaker or just 
plain sounds bad.  When the sound reverts back to the internal speaker, 
it isn't even all of the sound sometimes.

>  I do recall, however, hearing some time ago that people with 33MHz 386 and
>486 machines were experiencing problems with SB's.  Has anyone had any
>experience with this?  My friend's card is generating a lot of noise and will
>not output the Adlib FM properly.  I'm planning on suggesting that he get an SB
>Pro if it turns out the card is not faulty and a hardware conflict is the
>problem.
>
>  Any ideas?
>
>  Chris Kraai

I haven't checked the bus speed of the new PC.  If it is quite a bit faster
this may be part of the problem.

I would also like to hear anyone's ideas on the subject.  Please E-mail
responses to rod@array.com.

Thanks,

Rod
Xref: sparky alt.sb.programmer:367 comp.sys.ibm.pc.soundcard:2332
From: jl6p+@andrew.cmu.edu (Josh S Linder)
Newsgroups: alt.sb.programmer,comp.sys.ibm.pc.soundcard
Subject: Re: PC: Reading Amiga disks - HELP!
Date: 3 Oct 92 13:54:10 GMT
 <1992Sep29.052642.13360@organpipe.uug.arizona.edu>
 <1992Sep30.172827.7814@cybernet.cse.fau.edu>
 <46uY02sP24lE01@JUTS.ccc.amdahl.com>
	<92277.164206MEB117@psuvm.psu.edu>
Distribution: comp
Organization: Freshman, CIT general, Carnegie Mellon, Pittsburgh, PA

I'm personally am waiting for IBM to read NeXT 2.88 disks; NeXTStep/486
should do this. I have Mac-In-DOS 1.0G, and it doesn't do such a hot job
(Word for Windows 2.0a has trouble importing Word for Mac 4.0D files).
Xref: sparky alt.sb.programmer:358 comp.sys.ibm.pc.soundcard:2232
From: msf@skaro.as.arizona.edu (Michael Fulbright)
Newsgroups: alt.sb.programmer,comp.sys.ibm.pc.soundcard
Subject: SBDOS v2.0 Routines available via FTP
Date: 30 Sep 92 04:52:42 GMT
Distribution: na
Organization: University of Arizona UNIX Users Group

I have finished changes to the SBDOS set of routines. These routines
will work with MSC and Borland compilers (BCC). I havent tested them
with the Borland Turbo compilers. These routines implement double
buffered DMA output and input. The routines are designed for the
SB Pro, but will work with the SB. The original code I based this
package on was very well documented, so if you want to learn how to
program the SB this package is a good start.

The file is available through ftp at

astro.as.arizona.edu [128.196.176.1]

in the directory /pub/SBDOS20. Look for the file sbdos20.zoo. This is
a ZOO 2.10 archive.

Questions can be directed to msf@as.arizona.edu.

michael fulbright
msf@as.arizona.edu