I think it's fair to discuss, which is to say question, whether
military standard ALE is the best thing to use on amateur
frequencies. It's good to make use of existing standards when
they fit the situation, but military radio is not amateur radio.
With our crowded bands, and with amateur radios
--- In digitalradio@yahoogroups.com, Wes Linscott w1...@... wrote:
The EPC PSK125 contest was in operation. Is that possibly what you were
seeing/hearing?
Wes W1LIC
Well if PSK125 signals are clicky then that's just as bad as if
it's FSK. However I was able to copy one or two of the
I was just listening on 80M - some kind of RTTY contest is on - and
I hear a bunch of normal-sounding FSK RTTY signals, and some that
are awfully clicky, like key clicks except it's FSK. I wonder what
those guys are doing wrong. Having the speech processor turned on,
perhaps? Or too-rapid
I think I have it working, but haven't heard any
signals or tried to contact anyone yet. What works
is that if I punch CONNECT the transmitter gets keyed
and I can hear signal bursts going out on the sidetone.
And I guess I am receiving audio because I'm getting a
bunch of garbage on the screen
I guess I'm hearing a Gtor QSO right now, because every now
and then I get a screen message DATA: comp=Huffman, block=1
and that sort of thing.
but I also get CONNECT (greek) TO (greek)
and DISCONNECT (greek) FROM (greek)
never have seen any intelligible text.
This is on 3585.5 KHz and has
--- In digitalradio@yahoogroups.com, Dave Ackrill dave.g0...@... wrote:
Otherwise why so much RTTY on the bands? Even AX:25 is getting a bit
long in the tooth now, but people still struggle on with it...
My belief is that all the RTTY is largely from contesting and DX
chasing. Those two
--- In digitalradio@yahoogroups.com, Alan Barrow ml9...@... wrote:
I've also observed a significant power mindset with many RTTY ops.
Bigger is better.
This pretty much comes with the territory. I've been in RTTY since
the late 1950s, and I just remembered recently that back then we all
--- In digitalradio@yahoogroups.com, Dave 'Doc' Corio dco...@... wrote:
However, there is one thing the tuner will NOT do. It will not remember
any band or frequency, until the transmitter is keyed.
Well, sure. The only thing going from the radio to the tuner is
the antenna cable, so
--- In digitalradio@yahoogroups.com, sholtofish sho...@... wrote:
I tried some connects with Andy and Skip and can confirm the sound card
version of G-TOR works with a real G-TOR modem (my KAM-XL). Throughput got up
to 200 baud and of course no errors due to the ARQ.
The GUI is basic
--- In digitalradio@yahoogroups.com, John ke5h...@... wrote:
Thanks Skip,
Unfortunately, this really does not get to the crux of my question(s). I
understand how an SSB transmitter works, but that is not really what I am
after.
What I am driving at is if like this. If I use DM780 to
--- In digitalradio@yahoogroups.com, John Becker, WØJAB w0...@... wrote:
Not really Jim
I for one never stopped using the old machines.
Therefore never had to bring em back out.
It's the only way I do RTTY here.
John, W0JAB
Cool! I have a lot of TTY machinery out in my baudy house but
--- In digitalradio@yahoogroups.com, KH6TY kh...@... wrote:
I agree Dave, and Chip64 was abandoned over here on the same basis!
I remember trying Chip64 without worrying about whether it was
legal. I got the impression it was abandoned just because it didn't
work very well compared to some
--- In digitalradio@yahoogroups.com, n9dsj n9...@... wrote:
Hi Jim,
Actually CHIP worked ok, especially on the low bands. The Virginia NTS net
used this and still may.
Worked OK, but I didn't think it worked as well as or better than
other modes that were more popular.
Jim W6JVE
--- In digitalradio@yahoogroups.com, bruce mallon wa4...@... wrote:
I remember several spredsprectum people commenting that they didn't care if
they obliterated legacy modes.
Â
They didn't happen to be in the BPL networking business, did they?
It would be interesting to try to find out how much ROS
interferes with other modes when it operates on top of them.
That is, if you had a RTTY or PSK or Olivia or some other kind
of QSO going, and a ROS signal started up in overlapping
bandwidth, does the ROS signal tear up the other-mode QSO,
or
If the radio has RTTY as a mode, as does the TS-940 for
example, it means (1) there is an input on the back where
you put in a baseband signal and FSK comes out the antenna,
and (2) for receiving it will use a narrow filter and
center the filter up around 2.2 KHz. (By baseband I
mean the actualy
--- In digitalradio@yahoogroups.com, John Becker, WØJAB w0...@... wrote:
RTTY should be used in the LSB mode regardless of the band.
Well thats when you aren't using the FSK mode for RTTY; the FSK
mode does put it into LSB.
I don't use software for RTTY so I cant tell you a thing about
A minor but annoying problem I'm having is that in Windows XP
it keeps maximizing the window without being told to. I haven't
found for sure what triggers it, but just now I am monitoring
and a ROS signal came on and a second or two after the initial
tone the window maximized itself.
Yup, just
--- In digitalradio@yahoogroups.com, Vojtech bubn...@... wrote:
Both yours and Alex's graphs show superiority of TrueRTTY and MixW. I wonder
whether TrueRTTY is doing synchronous detection. This is what I plan to try
when I retire, hi.
There used to be the K6STI RITTY program which
Now I don't know about TrueTTY, but MMTTY has a number of things
you can play with in terms of the filtering and detection, so I
wonder if we could get some comparisons of those - or at least
tell us what the setup was when it was tested.
Jim W6JVE
I was listening on the top end of 75M this afternoon about 4PM
CST and heard a strange wideband signal, sounded a little bit like
rushing wind. Brought up a digital waterfall and found that it
extended from 3990.15 to 3997.85. The waterfall display was rather
blotchy, suggesting some internal
--- In digitalradio@yahoogroups.com, Mark Thompson wb9qzb_gro...@... wrote:
CSS to release The PK-232 25th Anniversary Software CD
A pre-order price of $139.95 is available at the CSS online store at
http://www.cssincorp.com.
What a deal! Just the thing to run on your 8088 PC.
I would love to have rag chews with DX stations, but in fact
I just about never answer CQs from DX stations because they
seem to automatically assume that I'm only interested in bagging
a DX QSO for DXCC or something and they terminate the contact
right away.
Jim W6JVE
--- In digitalradio@yahoogroups.com, aa777888athotmaildotcom aa777...@...
wrote:
Just send to your Winlink account. That would be your calls...@... However
note carefully the spam control features that are in effect at
http://www.winlink.org/help. You may need to add //WL2K to your
--- In digitalradio@yahoogroups.com, aa777888athotmaildotcom aa777...@...
wrote:
There are now 4 beta RMS server stations on the air. I've transferred mail
to/from the real world through one of them.
I've sent mail from radio to Internet through a couple of them.
What do you have to do to
FT-1000MP or TS-850S with DSP-100?
Jim W6JVE
But it's not ARRL vs. IARU in this case; it's FCC versus the
rest of the world. 7070 is not in a phone band in the U.S., but
is in some other countries. If it were in a phone band in the
U.S. then U.S. hams would not be able to operate digital modes
there.
I've never known if there is a standard for whether tip or
ring is left or right channel. And is left or right normally
used for the computer DSP radio software?
Thanks for the fine review.
It seems like the main thing WINMOR wants to add is the ability to
switch the data rate on its own, going faster when conditions are
good and slowing down when they are bad. This is something Clover
tried to do, but apparently was imperfectly implemented and hasn't
Is there a document?
Seems like people are falling all over one another to
participate in WINMOR testing, yet we have other ARQ schemes
that aren't getting exercised at all. I don't understand it.
Jim W6JVE
--- In digitalradio@yahoogroups.com, Rik van Riel r...@... wrote:
In my opinion, the why isn't nearly as important as the fact that
we have a problem on the band nowadays. The fixed frequency psk
kits have been built and cannot easily be changed to another
frequency.
Easily changed by
Maybe I haven't been paying attention, but what is it that
makes 3580 a sacred gathering place for PSK? Why isn't it
070 like it is on some other bands? Why can't we just QSY
to get away from W1AW?
--- In digitalradio@yahoogroups.com, vrygood10 vrygoo...@... wrote:
Hello All,
Is there any software out there that will identify and display
all hf digital signals..
I can identify some of the signals but there are many I can not..
Norman
If you're talking about amateur signals, then the
--- In digitalradio@yahoogroups.com, Rick W mrf...@... wrote:
It seems that there are only a handful of hams who have any interest in
ARQ modes for chatting.
I guess I'm one of that handful, but right now I'm working my way
back from some lightning damage that killed two computers, among
Google for rtty12git's in BASIC and comes with the source.
--- In digitalradio@yahoogroups.com, David djm...@... wrote:
Hi Mike.
Trouble is, I'm not Mike - I just cut and pasted Mike's message
from the other group. So we need other resources to learn how
he did it.
From: m II c...@in.the.hat
Newsgroups: rec.radio.shortwave
Subject: Ham Radio Deluxe on Linux
It took a while to get it working right. there was a lot of fiddling
with the 'Wine' setup.
http://encyclopaedia-galactica.org/screenshot.png
This thing has enough bells and whistles to last a lon,
--- In digitalradio@yahoogroups.com, chas ch...@... wrote:
Rick W wrote:
What is the attraction of MixW now that we have so many other multimode
digital programs that are freely available with one program even open
source and cross platform?
73,
Rick, KV9U
Rick, nearly all
--- In digitalradio@yahoogroups.com, Simon \(HB9DRV\) simon.br...@... wrote:
FWIW with the exception of laptops I always run RAID 1 (mirror). I've had
disks die but never lost data as a result in far too many years of coding.
Note that RAID is protection against a disk failure, but not
--- In digitalradio@yahoogroups.com, Siegfried Jackstien
siegfried.jackst...@... wrote:
i like the ida of automatic changing of the modes . would act as pactor
123 .
But the reason Pactor can do that is that the sending station is
constantly getting acknowledgment packets that tell
--- In digitalradio@yahoogroups.com, Simon \(HB9DRV\) simon.br...@... wrote:
Would not WINMOR be an option here?
Well, except that WINMOR seems to be single-mindedly a message
passing mode. I wish there was some layering so that the modulation
means and the error correcting means and the
I was listening to some stuff last night on 40M, and it was clearly
500 Hz wide and about 16 discrete tones, but it was not Olivia and
I couldn't find anything else that would decode it either. Tried
Contestia and RTTYM and various settings of Thor and DominoEX.
The signals looked and sounded a
--- In digitalradio@yahoogroups.com, Mike Blazek mbla...@... wrote:
Hi, Jim:
Might have been MFSK16?
Mike N5UKZ
Nope, MFSK16 is much narrower than 500 Hz. And I tried MFSK32
with no results.
--- In digitalradio@yahoogroups.com, Andy obrien k3uka...@... wrote:
What frequency was this mode?
Oh, about 7073. There was an Olivia signal nearby, which made
it easy to see that the displays were different. Olivia looks
more random, like snowfall, whereas this signal seemed to have
a
--- In digitalradio@yahoogroups.com, ww6aa ww...@... wrote:
i am new to dig.radio and apologize for asking a question that i am sure has
been answered many times, but search came up with 1000 replies. What
software seems to be most popular @ this time
You mean today? Or last week?
--- In digitalradio@yahoogroups.com, expeditionradio expeditionra...@...
wrote:
Hi Andy,
There is no simple universal relationship between
the shift and the transmitted signal bandwidth,
However, for the particular case of binary FSK where the
shift is wide compared to the bit rate, you
--- In digitalradio@yahoogroups.com, Dave AA6YQ aa...@... wrote:
Thanks.
To repeat my first question, What's the bandwidth of an FSK signal whose
shift is 1 kHz and whose symbol rate is limited to a maximum of 300 baud?
Feel free to parametize as necessary.
Using the approximation I just
Rats! I just hit the wrong key and sent an unintended
message. Wish I could delete it. And before that I had
written a lengthy comment which Yahoo seems to have lost.
So I'll try again.
Seems like there are several aspects to ALE
One is the notion of going through a list of frequencies in
--- In digitalradio@yahoogroups.com, Andrew O'Brien k3uka...@...
wrote:
I assume that many people know already, but just in case there are
some that do not, WINMOR will not be a digital mode that your can use
for keyboard chats or QSOs, it is intended to allow you to connect
to a HF Radio
I have a friend who years ago twisted my arm to get me into
Clover. Back then the original Clover modem, the PCI-4000
was arguably more costly than the SCS modems in constant dollars.
We used to keep skeds and use it conversationally - he seemed
to really enjoy the quasi-full-duplex operation
--- In digitalradio@yahoogroups.com, W5XR w...@... wrote:
I'm asking. :)
Bob, W5XR.
O.K.
For START-STOP synchronization to work the receiving shaft (selector
or distributor) has to stop between characters. The Morkrum Co.
(ancestor of Teletype Corp.) had the sending and receiving
--- In digitalradio@yahoogroups.com, Vojtech Bubnik bubn...@... wrote:
Patrick, I have a proposal for one low hanging fruit project. How
about to receive RTTY in a synchronous way? I believe most SW really
generate precise synchronous RTTY, where the only variable is the
unknown stop bit
--- In digitalradio@yahoogroups.com, Patrick Lindecker f6...@...
wrote:
A synchronous RTTY under Windows is possible with a standard symbol
synchronization (with or without a PLL which can be seen as the
digital
flywheel). However, the stop bit (1.5 symbols) complicates all as
it is not
It can be awfully helpful at times to have a portable
battery powered shortwave receiver so you can listen to
the interference while you are walking around, and with
all your AC power shut off.
--- In digitalradio@yahoogroups.com, Rud Merriam k5...@... wrote:
First, I would not dismiss sound card modes. I think there is much more
that can be done with them. One of the main issues IMO is that they
don't (1) adapt to changing band conditions, and (2) don't utilize FEC
as much as is
Something I forgot to mention earlier in suggesting a Pentium with
sound card might be usable as a dedicated DSP engine - the K6STI
software absolutely required an ISA SoundBlaster. If we want to
define a new DSP engine we need some higher level of abstraction
to be able to cope with hardware
--- In digitalradio@yahoogroups.com, Graham g0...@... wrote:
but with the stability of modern rigs I dont see why the
original mfsk should not make a come back ?
The only time I had trouble with MFSK16 and frequency drift
was when I was using the Elecraft K-2 radio with its 100W
amplifier,
--- In digitalradio@yahoogroups.com, Andrew O'Brien k3uka...@...
wrote:
FYI, anyone have the full articel ?
Andy
Comparison of Performance of Digital Modulation Techniques in the
Presence of Adjacent Channel Interference
Milstein, L. Pickholtz, R. Schilling, D.
Univ. of California
--- In digitalradio@yahoogroups.com, Mark Milburn markk...@... wrote:
Yes, there are a LOT of repeats when the bands are poor. Signal
strength is not the only criteria. I don't have a technical
background to explain it or even understand it, but there are plenty
of days when a signal of S7
--- In digitalradio@yahoogroups.com, Briggs Longbothum bru...@...
wrote:
Andy, I'm not convinced at all that this is a good idea. I hate to
sound naggish and I do applaud you efforts with the good of the group
in mind, but I've had a raft of bad experiences
I agree - one of my old
--- In digitalradio@yahoogroups.com, Russell Blair
russell_blai...@... wrote:
I down loaded and installed ver.3.10 and for the life me I cant get
to work the (Compute 2.5Ghz,1.5gig of ram windows XP Pro SP3) SB
soundcard. I cant get the program to show any audio, even thou the
program shows my
The latest fldigi 3.10 is now available on the w1hkj.com web site.
--- In digitalradio@yahoogroups.com, Gmail - Kevin, Natalia, Stacey
Rochelle spar...@... wrote:
DM780 through the sound card to Kenwood TS-480S/AT, in the data socket.
When I start DM780 and look at the screen, waterfall I see the data
mode, in this case PSK31 on 14.081.5, but the radio is
This may seem too obvious, but get a pair of earphones and some
clip leads if necessary and see if you are getting audio out of
the cable that plugs into the radio. That tells you whether the
trouble is in the computer, like something to do with the
volume controls, or in the radio like the
--- In digitalradio@yahoogroups.com, Ed hucklebe...@... wrote:
I wasn't trying to flame you, but I do think you might get a
better response on manual_excha...@yahoogroups.com .
Or armyradios group, or perhaps hflink, which is for ALE-capable
radios, if it is that kind of radio.
Related to the earlier question about amateur radio ASCII,
there was also the occasion when the 60wpm limit was lifted
and 100 wpm Baudot was allowed. This too never became popular
because only the guys who had Model 28 machines could use it,
and because the shorter bit length (13 ms. versus 22
I think it would be more useful if you would announce your
plans to be operating well in advance of the time you start
up. I tend to read the group once a day, usually in the
morning, so what I learn from your message is what I could
have been doing last night, if I had not been busy with
other
--- In digitalradio@yahoogroups.com, Jose A. Amador [EMAIL PROTECTED] wrote:
but there was a GM - Microsoft
controversy that ended with a caustic reply from the GM's President
that explained it too well.
That's interesting, because I think it was GM that is generally
credited with inventing
I guess some people thought it was a Big Deal, but there were lots
of reasons why it didn't go anywhere.
I'd say the overriding one is that with 60 wpm Baudot RTTY the bit
length is 22 milliseconds. With 100 wpm ASCII 110 baud the bit
length is 9 milliseconds. That means 2.4 times the
--- In digitalradio@yahoogroups.com, John Becker [EMAIL PROTECTED] wrote:
I have a couple of books on RTTY dating back to the 1960's. They talk
about using TU's that can decode with only the mark or only the space
signal. This seems pretty straightforward, since the mark and space
--- In digitalradio@yahoogroups.com, Andrew O'Brien
[EMAIL PROTECTED] wrote:
I gave up on NBEMS after several hours of 20/40M beaconing. It is a
great application but heard NO one today. ALE on the other hand
proved quite active and the http://hflink.net/qso link made it easy to
see how I
I noticed last night that just added to or updated in Fedora 9 Linux
are xdemorse, xpsk31, and xlog.
I was just thinking as a purely whimsical thing, wonder if
it would be hard to use AMTOR as the communication link and
use Real Teletype machines for the keyboard and printer,
5-unit code and all.
What got me to thinking of this was that RCA used to have a
service based on their ARQ system, which
--- In digitalradio@yahoogroups.com, Howard Brown [EMAIL PROTECTED] wrote:
I worked Tony K2MO last night on 20 meters using MFSK31 and MMVARI.
This mode seems very robust. It worked through deep fading and some
horrible noise very well. Also, it is quite a bit faster than
I worked him too,
100 feet of ladder line is sort of a magic number for being
easily tunable on all the bands. One of my friends bought
a ready-made 80M dipole with 100 feet of ladder line and a
tuner; and the instructions were not to cut much if any off
the ladder line. I learned the reason for that later when I
--- In digitalradio@yahoogroups.com, Yves Dussault [EMAIL PROTECTED]
wrote:
I want to use my K2 on digital modes.
Any suggestions?
Nothing very specific...I've used a K2 on digital modes. Depending
on how old yours is, there is a modification that makes the VFO more
temperature stable, which
--- In digitalradio@yahoogroups.com, Dave Bernstein [EMAIL PROTECTED] wrote:
I don't believe that PSK31, PSK63, or RTTY are the best that can be
done on HF-- but no protocol attractive enough to displace them has
yet been developed.
I think, too, that each has its place. RTTY was once
--- In digitalradio@yahoogroups.com, Dave AA6YQ [EMAIL PROTECTED] wrote:
In seeking to displace PSK31 with a better alternative, a good place to
start is to consider PSK31's weaknesses:
A. no error detection/correction
B. simplex
C. can't convey files (messages, pictures, documents,
We conspiracy theorists can always believe that Microsoft
deliberately made Vista so bad so that there will be lots
of buyers for the next version of Windows. Gotta keep the
revenue stream flowing.
You mentioned Class B for industrial applications. Is
the intent of Class B to hold down the amount of RFI
coming out of the computer and bothering other things?
Or is it more to prevent strong RFI in the environment
from screwing up the computer?
I guess for ham radio we are concerned with both
I agree on building your own PC. I built one using a cheapie
case and power supply and it was pretty quiet. So I ordered
another case and power supply, same catalog number from the
same supplier, and what came was a bit different. The power
supply was the worst broad-band noise generator I have
--- In digitalradio@yahoogroups.com, Ian Wade [EMAIL PROTECTED] wrote:
We all know that we should use LSB for analog voice below 10MHz, but
what is the consensus for FDMDV and other digital voice modes below
10MHz: LSB or USB?
I don't use FDMDV, but for the keyboard digital modes, after a
--- In digitalradio@yahoogroups.com, Robert Chudek - K0RC [EMAIL PROTECTED]
wrote:
I started my RTTY career using 2125 and 2975 tones...
Same here, and with a pre-WW-II Super Pro receiver that would have
drifted right out the window if it had not been screwed down. And
a transmitter of the
--- In digitalradio@yahoogroups.com, tremont245 [EMAIL PROTECTED] wrote:
--- In digitalradio@yahoogroups.com, AE9K AE9K@ wrote:
Hi Dan
Go for the Digital Modes For Occassions by ZL1BPU, I have just
received this book and can't put it down. I have the other book as
well, which I feel is
--- In digitalradio@yahoogroups.com, Rick [EMAIL PROTECTED] wrote:
Andy,
What I don't understand is if you already have a suite of modes,
Pactor,
Pactor 2, and Pactor 3, then why create another mode like they did?
This is not compatible with existing packet, right? So you would
have to
--- In digitalradio@yahoogroups.com, kh6ty [EMAIL PROTECTED] wrote:
VBdigi is looking for the following files in D:\Program Files\NBEMS
directory:
emailsetup.rtf
flarq.rtf
logbook.rtf
messaging.rtf
vbdigi.rtf
vbdigisetup.rtf
Do a search for flarq.rtf and tell me where it is
--- In digitalradio@yahoogroups.com, kh6ty [EMAIL PROTECTED] wrote:
Please try creating a folder, C:\Program Files\NBEMS, copying the files
there, and see if VBdigi finds those.
No, it did not find them there either.
--- In digitalradio@yahoogroups.com, Bill McLaughlin [EMAIL PROTECTED]
wrote:
One I had trouble with the other day, was
Clover, but had not heard it in so long I had forgotten what it
sounded like.
You heard a Clover signal?! What kind of time machine do you
have there? Heard any spark
I'm trying to follow the instructions in
VBdigi under Help-Radio email setup.
I navigate to C:\NBEMS\Mail
I put the mouse pointer on the ARQout folder and
hold down the right mouse button and try to drag
it to the menu bar at the bottom of the screen, and
I get the slashed-circle not symbol.
--- In digitalradio@yahoogroups.com, kh6ty [EMAIL PROTECTED] wrote:
It is my belief that if voice of the same bandwidth were allowed
everwhere
data is allowed, the data segments of the bands would be overrun with
phone stations using DV.
We could, for the sake of argument, use that
--- In digitalradio@yahoogroups.com, Sholto Fisher [EMAIL PROTECTED] wrote:
It can also clog up our bands.
For instance I am monitoring a Pactor 2 transmission on 30m that has
been on
going for around 25 minutes so far and the latest email to go
through is
titled:
FW: Please read til
--- In digitalradio@yahoogroups.com, Charles Brabham [EMAIL PROTECTED]
wrote:
I tried it out, but had trouble with the audio not driving the
waterfall
display sufficiently to function.
You have to fiddle with a couple of numbers at the bottom of the window.
Just to the left of the QSY
This seems like a good time to mention the late Bob
Weitbrecht, W6NRM. He was for all practical purposes
totally deaf, but was able to copy CW. I never knew
if he had just enough hearing at one frequency to
hear the tone or if he felt the vibrations on the
headphones on his head. Anyway, at an
Around 2045Z Friday the 30th
Freq. 14076+1750
Mostly a steady tone, with several clicks per second, the
clicks being probably PSK transitions.
--- In digitalradio@yahoogroups.com, vk2eta [EMAIL PROTECTED] wrote:
Here is the wiki page below. Follow the download link on the left.
You will get access to two download mirrors. They include the source
and installation instructions as well if you already have linux
running.
OK, the
--- In digitalradio@yahoogroups.com, Rein Couperus [EMAIL PROTECTED] wrote:
You need pskmail version 0.5.4 to enjoy PSK250 arq.
http://pa0r.blogspirit.com
Where do you get this version if you just want the sources for
Linux, rather than Puppy or Windows? I googled for it and got
one page with
--- In digitalradio@yahoogroups.com, Rick [EMAIL PROTECTED] wrote:
I think that I have mentioned some of this before, but unless you
have a
club of some kind where interested hams join and buy in to a concept,
a numbering system may not be something that many will gravitate toward.
I'll
Why do you tell us where to get it?
--- In digitalradio@yahoogroups.com, Rick [EMAIL PROTECTED] wrote:
You are very correct that Clover II was not a very good mode,
especially
considering the price, since it was only a bit faster than Pactor I and
perhaps similar in ability to operate in weak signals.
Yet I have one friend
1 - 100 of 179 matches
Mail list logo
