From: MV Don Low (MVdonlow@hotmail.com)
Date: Mon Nov 10 2003 - 17:11:37 PST
Well congradulations, I have been haming long before Nixon as well, DAD is a
ham , so is my brother !
I grew up with Radios teletypes and had a computer long befoer most people
knew what they were.
I'll bet ya even know who Heathkit is !
And as for experience in 35 years ? Wooooo Peeeeeeeeee !
My family has of 90 years experience combined. We must know all ther is to
know NOT !
Your and my experenece are but a drop in the ocean, compared to all that
does on.
Have there been any RC incidents? I doubt either of us would be aware
(perhaps there is a $1500 plane in the ground, maybe not)
All that goes on is not reported, and all that is reported is not always ,
(IF EVER) solved.
In practice, I dount you would know about it. Since you were just driving
by (how could ya know ) ?
As for DX well, I am sure there is interference there, NO QUESTION ABOUT IT
!
As the noize floor rises because of our activity, the contacts are lost in
the trash , expecialy on QRP !
Would you suggest we run A FULL LEGAL LIMIT LINEAR just for fun ,. cause ya
can? (NOT ME)
Why not be more polite about our activities ?
Before a rule change outlaws our WIDE BAND FM RADIOS alltogether. under the
guise of efficent use of bandwidth
And do not suggest that has not been sugested and talked about, you and I
both know it has.
obviously you will do as you see fit.
I chose to "do diligence" , and avoid the obvious hazzards, for me and
others. When ever possible.
Live long a prosper one named James , May the FCC never darken your radio
tubes.
At least we agree to disagree, thats better than some, probably most !
I give you the last word !
Don Low N0UBI
----- Original Message -----
From: J
To: MV Don Low
Sent: Monday, November 10, 2003 12:53 AM
Subject: Re: [MV] Mil FM Radios 0n 51.0 MHz
You're right about the 51.0 being close to RC and DX! :-) In theory, you
are absolutely correct. In practice, I've never even heard of a single
incidence of interferance with either RC or DX, and I've been a ham since
Nixon was in the middle of the Tet Offensive in Viet Nam (1968). On
balance, I don't see a need to invest in recrystalling, retuning, and
reorganizing because of a potential problem that is so small that it hasn't
even been seen in 35 years or more.
If your club chooses to use a higher frequency, that's great. If you go
to a national event or similar, most everyone will be on 51, but that's not
a big deal. Jim
MV Don Low wrote:
50.8-51.0Radio remote control (20-kHz channels)
51.0-51.1Pacific DX window
>From http://www.arrl.org/FandES/field/regulations/bandplan.html
51.0 puts signal in there ! both ways seems bad 2 me ?
51.12-51.18Digital repeater inputs
51.62-51.98Repeater outputs (19 channels)
51.6 looks Like a litte no mans land !
Even the odd chance of putting a RC plane into the ground seems to be a bad
idea.
And I harld need quote the rules about interference.
N0UBI
----- Original Message -----
From: J
To: MV Don Low
Sent: Monday, November 10, 2003 12:19 AM
Subject: Re: [MV] Mil FM Radios 0n 51.0 MHz
Hi, Don.
Wideband FM as used by our military is +/- 15 KHz deviation. Narrowband
is +/- 5 KHz. Even the wideband deviation doesn't stray very far from 51.0.
I don't know what freq the RC crowd is on, but I suspect that their
receivers are sensitive to everything within a few MHz, which is their
problem, not ours. Most RC is up at 75 MHz, but hams are allowed to use 6m.
I can't imagine that there is a very large fraction of RC folks running on
6m. I think it would be a non-problem.
As for crystals, changing them is easy. Ordering them is not. You need
to know parallel capacitance, and should really provide a schematic to the
crystal company so they can grind the crystal so that it runs at the right
freq in your particular model of radio. Crystals aren't cheap, and take
weeks to come in, because we don't make them in the USA anymore. Virtually
all of them are made in Asia, now.
I've never heard of an actual problem encountered with using 51.0 MHz
anywhere. That's my $0.02, anyway. Take care. 73 de Jim, W7LS
MV Don Low wrote:
OK, I think i understand your argumnet. Dave can tell just "cause we have "
is not a argument I like, or listen to .
My only consern here is (as you know) we do not interfer with others.
That way we get no bad publicity. MilVeh and Guns attract attention, Radios
more, Just more fuel for the fire.
Ever had your truck searched ( I mean give the Locals a extensive tour or
your MilVeh's contents, that was FUN ! ROTFL)
So, with that in mind, I am not hammering you , quite the contrary I
applaud the communication, thats how we get toooo an agrement (sometimes).
Please explain how our Wide Band FM radios will not interfer with Radio
Control freqs (I shutter to think what a RC jet runing at 150MPH might do to
a human)
and why we would want to interfer with DX bands ? Yea I know 6 meters opens
seldom, but it does open up.
IT all HAM band, yep you can use it anyway the rules allow.
We chose 51.6 MHz cause it is the least dangerious (for RC) and least
interfering(with DX, Way far from TV ), and most compatable with what we
use.
If our idea is not sound, please , correct us !
I will consider the Crystal controled aggument, (pulling a cristal out and
putting anotherin , is highly Technical ) LOL .
In any case, its not to hear from others that like MivVeh and radios, and
USE EM, LEGALY 73's for now
N0UBI
----- Original Message -----
From: J
To: MV Don Low ; mil-veh@skylee.com
Sent: Sunday, November 09, 2003 8:15 PM
Subject: Re: [MV] Mil FM Radios 0n 51.0 MHz
51.0 has been the standard freq for years and years. It's so well
ingrained that to change it would take years and years, while people were
between two freqs. Besides, lots of mil radio collectors are crystal
controlled on 51.0 and would have to invest $ and knowhow to alter that. I
have not heard of any conflicts with 51.0. If we could start over from
scratch, it might make sense to choose something different. Surplus mil
radios came on 51, which is historically why we use 51. Jim W7LS
MV Don Low wrote:
Why use 51.0 MHz ? This freqency is at the edge of the radio control band,
and is also near FM DX frequencies, so please limit use of this channel to
low-powered rigs with lousy antennas
50.6 MHz that this frequency is at the edge of the "all-mode" band,
and is near the digital/packet calling channel, so please use it with
caution.
51.4 some Mil radio san not tune there at all !
http://www.qsl.net/ke6myk/greenradio/6mcallfreq.html
This is Why we chose 51.6 MHz it interferes the least with everyone, and
all Mill radios can tune to it !
IF more of us would chose to use it , We just might have a better chance to
contact another club. MilVeh DX wow
N0UBI
Don Low
----- Original Message -----
From: "Buzz" <buzz@softcom.net>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Sunday, November 09, 2003 11:23 AM
Subject: Re: [MV] Mil FM Radios
Here's a list of frequencies from the army radios group that are legal for
licensed hams.
Below is the current schedule of radio nets for use by
subscribers of the armyradios mailing list.
Armyradios net times and
Frequencies:
.........................
TACTICAL FM:
Primary FM Tactical
GUARD CHANNEL: 51.0 MHz
(includes low-power squad radios)
1st ALTERNATE FM 51.6 MHz
2nd ALTERNATE FM 51.4 MHz
3rd ALTERNATE FM 50.4 MHz
The alternate channels listed are for use when significant
band openings create significant Interference on 51.0 MHz
Buzz
On Sun, 9 Nov 2003 11:54:20 -0500, you wrote:
Howdy Folks,
Is there a common FM frequency used by mil veh collectors?
Lar
Hackettstown, NJ
===Mil-Veh is a member-supported mailing list===
To unsubscribe, send e-mail to: <mil-veh-off@mil-veh.org>
To switch to the DIGEST mode, send e-mail to <mil-veh-digest@mil-veh.org>
To reach a human, contact <ack@mil-veh.org>
===Mil-Veh is a member-supported mailing list===
To unsubscribe, send e-mail to: <mil-veh-off@mil-veh.org>
To switch to the DIGEST mode, send e-mail to <mil-veh-digest@mil-veh.org>
To reach a human, contact <ack@mil-veh.org>
===Mil-Veh is a member-supported mailing list===
To unsubscribe, send e-mail to: <mil-veh-off@mil-veh.org>
To switch to the DIGEST mode, send e-mail to <mil-veh-digest@mil-veh.org>
To reach a human, contact <ack@mil-veh.org>
This archive was generated by hypermail 2.1.4 : Sat May 07 2005 - 20:26:26 PDT