From: VK7AX@VK7AX.#ULV.TAS.AUS.OC
To : ATVDIG@WW
There are 5 messages in this issue.
Topics in this digest:
1a. ATV Repeater
From: matt.kc8bew(AT)gmail.com
1b. Re: ATV Repeater
From: Mark Phillips
1c. Re: ATV Repeater
From: John K Scoggin Jr (W3JKS/AAT3BF)
1d. Re: ATV Repeater
From: Gary Altig
1e. Re: ATV Repeater
From: Rod Lane
Messages
________________________________________________________________________
1a. ATV Repeater
Posted by: "matt.kc8bew(AT)gmail.com" matt.kc8bew(AT)gmail.com web8ck
Date: Fri Jan 29, 2010 7:40 am ((PST))
Hello All,
I am the Emergency Coordinator for Muskingum County in Ohio. We are wanting
to build an ATV repeater as a deployable unit. Does anyone have any
information to help us out?
I am looking for best frequencies, equipment needed, locations to purchase
the equipment, etc. If I someone or group would be willing i woud like to
see a setup in operation if in a resonable distance from Zanesville, Ohio.
Our group was restarted a year ago and we have found our niche to get our
foot in the door with the served agencies. Now I would like to cement this
and build on it.
Thanks & 73,
Matthew, kc8bew
Messages in this topic (5)
________________________________________________________________________
1b. Re: ATV Repeater
Posted by: "Mark Phillips" g7ltt(AT)g7ltt.com kc2eni
Date: Fri Jan 29, 2010 8:09 am ((PST))
Why do you want a "deployable unit"? Your repeater will suffer the same
problems as a simplex unit when deployed at a random site in the field.
You would be better served with a repeater installed on a tower within
your coverage area and a handful of portable TV transmitters down the
bottom of 70cms. If you go higher on frequency you are going to suffer
the line-of-sight issue.
Just what exactly do you hope to offer the served agencies? It's been my
experience (I was a ham at Lockerbie and WTC) that the agencies want to
see with their own eyes and that any pictures they get must be secure in
their transmission.
Good luck with it. Let me know if I can pour any more rain on your parade :}
Mark
On 01/29/2010 07:06 AM, matt.kc8bew(AT)gmail.com wrote:
> >
> >
> > Hello All,
> > I am the Emergency Coordinator for Muskingum County in Ohio. We are
> > wanting to build an ATV repeater as a deployable unit. Does anyone have
> > any information to help us out?
> >
> > I am looking for best frequencies, equipment needed, locations to
> > purchase the equipment, etc. If I someone or group would be willing i
> > woud like to see a setup in operation if in a resonable distance from
> > Zanesville, Ohio.
> >
> > Our group was restarted a year ago and we have found our niche to get
> > our foot in the door with the served agencies. Now I would like to
> > cement this and build on it.
> >
> > Thanks & 73,
> > Matthew, kc8bew
> >
> >
Messages in this topic (5)
________________________________________________________________________
1c. Re: ATV Repeater
Posted by: "John K Scoggin Jr (W3JKS/AAT3BF)" aat3bf(AT)armymars.net jks19714
Date: Fri Jan 29, 2010 9:04 am ((PST))
I'm in the process of constructing one. It consists of a 1.2 GHz 1-watt FM
remote camera/transmitter (MobiComm on EBay) mounted on a tripod with the
matching receiver mounted atop a mast on the Mobile Communications Unit.
The MCU houses a modified Intuitive Circuits ATV 4-port controller, a 4x8
port computer-controlled audio/video switcher (we also have some short-range
2.4 GHz cameras tied-in) and a PC Electronics 70-cm AM transceiver with a
Mirage 80-watt PEP amplifier, all 19" racked-and-stacked and setup for
computer control as well as captured on DVR (Linux server). I use a pair of
circularly-polarized antennas on 23cm to reduce multi-pathing and an Olde
Antenna Labs 70cm horizontal polarized Yagi for the uplink, We can also
take the captured video from the DVR and place it on either the internal
webserver or an external site via satellite link.
I have some pictures and diagrams up on my website
<http://www.armymars.net/ArmyMARS/MCU/> . I have all of the parts; it's a
matter of having the time to get it all physically installed at this point.
73s,
john
_____________________________________
John K Scoggin, Jr. W3JKS/AAT3BF/AAM3EDE/AAA9SL
US Army Military Affiliate Radio System
Delaware Gateway Station AAB3DE
Special Consultant - Technology
Emergency Operations Officer - Delaware
"Old RADEF Officers never die, they simply decay exponentially."
Chief Engineer
Mobile Communications Unit 37 (AAT3CAD/W3MCU)
http://www.armymars.net/ArmyMARS/MCU <http://www.armymars.net/>
ARRL Assistant Section Manager - Delaware
Email: aat3bf(AT)armymars.net
Telephone: (302) 451-5000
_____
From: Ham-ATV(AT)yahoogroups.com [mailto:Ham-ATV(AT)yahoogroups.com] On Behalf Of
matt.kc8bew(AT)gmail.com
Sent: Friday, January 29, 2010 7:06 AM
To: Ham-ATV(AT)yahoogroups.com
Subject: [Ham-ATV] ATV Repeater
Hello All,
I am the Emergency Coordinator for Muskingum County in Ohio. We are wanting
to build an ATV repeater as a deployable unit. Does anyone have any
information to help us out?
I am looking for best frequencies, equipment needed, locations to purchase
the equipment, etc. If I someone or group would be willing i woud like to
see a setup in operation if in a resonable distance from Zanesville, Ohio.
Our group was restarted a year ago and we have found our niche to get our
foot in the door with the served agencies. Now I would like to cement this
and build on it.
Thanks 73,
Matthew, kc8bew
Messages in this topic (5)
________________________________________________________________________
1d. Re: ATV Repeater
Posted by: "Gary Altig" garylaltig(AT)msn.com garylaltig
Date: Fri Jan 29, 2010 9:21 am ((PST))
DE N7UVL,
I, also, would like what ever input is available for a deployable
ATV Repeater. While we have had some limited success in that
area, there are still many issues to overcome.
-We tried using laptops for the displays instead of TV Monitors.
a more expensive way to go about this. And we tried one of those
expensive "screen ID'ers" at the Repeater location, in order to
comply with Part 97 ID Regulations. The whole package became
very expensive.
-As to why a deployable ATV Repeater, not all high places for
permanent ATV repeaters are practical at this time. Don't know if
other people have this problem, but most high locations here
require additional funds for rack space; road maintenance; tower
space; etc. And we would still have locations that could not be
served without a supplemental deployable ATV Repeater at
locations without commercial power.
-As to served agencies wanting to use their own "eyes", while
there are individuals with that concept, served agency teams
at an EOC would like to share the "view" to the "Room". At our
REOC, there is a chair; computer; telephone; and Function ID
for every "served" & Government Agency in the County. And much
of the Disaster activities are displayed on an overview screen
using "Web EOC" for visuals; status; and reporting.
-We are currently experimenting with recycled gaming equipment
to integrate an ARES Winlink/Outpost operation version that
can also feed the Web EOC System./ga
----- Original Message -----
From: Mark Phillips<mailto:g7ltt(AT)g7ltt.com>
To: Ham-ATV(AT)yahoogroups.com<mailto:Ham-ATV(AT)yahoogroups.com>
Sent: Friday, January 29, 2010 8:09 AM
Subject: Re: [Ham-ATV] ATV Repeater
Why do you want a "deployable unit"? Your repeater will suffer the same
problems as a simplex unit when deployed at a random site in the field.
You would be better served with a repeater installed on a tower within
your coverage area and a handful of portable TV transmitters down the
bottom of 70cms. If you go higher on frequency you are going to suffer
the line-of-sight issue.
Just what exactly do you hope to offer the served agencies? It's been my
experience (I was a ham at Lockerbie and WTC) that the agencies want to
see with their own eyes and that any pictures they get must be secure in
their transmission.
Good luck with it. Let me know if I can pour any more rain on your parade :}
Mark
On 01/29/2010 07:06 AM, matt.kc8bew(AT)gmail.com<mailto:matt.kc8bew%40gmail.com> wrote:
>
>
> Hello All,
> I am the Emergency Coordinator for Muskingum County in Ohio. We are
> wanting to build an ATV repeater as a deployable unit. Does anyone have
> any information to help us out?
>
> I am looking for best frequencies, equipment needed, locations to
> purchase the equipment, etc. If I someone or group would be willing i
> woud like to see a setup in operation if in a resonable distance from
> Zanesville, Ohio.
>
> Our group was restarted a year ago and we have found our niche to get
> our foot in the door with the served agencies. Now I would like to
> cement this and build on it.
>
> Thanks & 73,
> Matthew, kc8bew
>
>
Messages in this topic (5)
________________________________________________________________________
1e. Re: ATV Repeater
Posted by: "Rod Lane" laner1(AT)cox.net n1fne
Date: Fri Jan 29, 2010 4:38 pm ((PST))
One of the easiest ways to build an ATV repeater might be to do a cross-band
repeater. I'm thinking a UHF output (421.25 MHz) and 900 MHz, 1200 MHz, or
2.4 GHz input.
The down side is that simplex is a limited option. The plus side is much
less requirements for expensive duplex filtering. You could still do
simplex at the higher bands, but they're really getting point-to-point at
those frequencies, and you'd need one receiver (or downconverter) for the
UHF repeater output, and another for the higher repeater input frequencies.
It's handy to have UHF for the repeater output, because a simple CATV-ready
TV can tune in the UHF frequencies directly, using cable channels. As I
remember, it's in the Cable Channel 60 range. (It's been a while since I
played with it.)
You can get fairly high power ATV transmitters from off-shore sources on
eBay. There are complete packages used for UAV (Unmanned Aerial Vehicle)
ham use. Some transmitters are even up to 2 watts output. With some decent
gain antennas, some good distances could be realized.
There's lots of good information in a magazine specializing on ATV at
http://atvquarterly.com/ I've subscribed for years and there are many
do-it-yourself projects, as well as advertisements for vendors of ATV gear.
73, Rod Lane N1FNE
From: Ham-ATV(AT)yahoogroups.com [mailto:Ham-ATV(AT)yahoogroups.com] On Behalf Of
Gary Altig
Sent: Friday, January 29, 2010 12:11 PM
To: Ham-ATV(AT)yahoogroups.com
Subject: Re: [Ham-ATV] ATV Repeater
DE N7UVL,
I, also, would like what ever input is available for a deployable
ATV Repeater. While we have had some limited success in that
area, there are still many issues to overcome.
-We tried using laptops for the displays instead of TV Monitors.
a more expensive way to go about this. And we tried one of those
expensive "screen ID'ers" at the Repeater location, in order to
comply with Part 97 ID Regulations. The whole package became
very expensive.
-As to why a deployable ATV Repeater, not all high places for
permanent ATV repeaters are practical at this time. Don't know if
other people have this problem, but most high locations here
require additional funds for rack space; road maintenance; tower
space; etc. And we would still have locations that could not be
served without a supplemental deployable ATV Repeater at
locations without commercial power.
-As to served agencies wanting to use their own "eyes", while
there are individuals with that concept, served agency teams
at an EOC would like to share the "view" to the "Room". At our
REOC, there is a chair; computer; telephone; and Function ID
for every "served" & Government Agency in the County. And much
of the Disaster activities are displayed on an overview screen
using "Web EOC" for visuals; status; and reporting.
-We are currently experimenting with recycled gaming equipment
to integrate an ARES Winlink/Outpost operation version that
can also feed the Web EOC System./ga
----- Original Message -----
From: Mark Phillips <mailto:g7ltt(AT)g7ltt.com>
To: Ham-ATV(AT)yahoogroups.com
Sent: Friday, January 29, 2010 8:09 AM
Subject: Re: [Ham-ATV] ATV Repeater
Why do you want a "deployable unit"? Your repeater will suffer the same
problems as a simplex unit when deployed at a random site in the field.
You would be better served with a repeater installed on a tower within
your coverage area and a handful of portable TV transmitters down the
bottom of 70cms. If you go higher on frequency you are going to suffer
the line-of-sight issue.
Just what exactly do you hope to offer the served agencies? It's been my
experience (I was a ham at Lockerbie and WTC) that the agencies want to
see with their own eyes and that any pictures they get must be secure in
their transmission.
Good luck with it. Let me know if I can pour any more rain on your parade :}
Mark
On 01/29/2010 07:06 AM, matt.kc8bew(AT)gmail.com
<mailto:matt.kc8bew%40gmail.com> wrote:
> >
> >
> > Hello All,
> > I am the Emergency Coordinator for Muskingum County in Ohio. We are
> > wanting to build an ATV repeater as a deployable unit. Does anyone have
> > any information to help us out?
> >
> > I am looking for best frequencies, equipment needed, locations to
> > purchase the equipment, etc. If I someone or group would be willing i
> > woud like to see a setup in operation if in a resonable distance from
> > Zanesville, Ohio.
> >
> > Our group was restarted a year ago and we have found our niche to get
> > our foot in the door with the served agencies. Now I would like to
> > cement this and build on it.
> >
> > Thanks & 73,
> > Matthew, kc8bew
Messages in this topic (5)
**********************************************************
ABOVE IS A CROSS POST TO THE PACKET RADIO NETWORK IN AN
EFFORT TO PROMOTE FURTHER INTEREST IN AMATEUR TELEVISION
AND PACKET RADIO
Courtesy Tony VK7AX VK7AX(AT)VK7AX.#ULV.TAS.AUS.OC
**********************************************************
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