AR15.Com Archives
 Personal GPS?
MNshooter  [Team Member]
3/30/2011 10:02:45 AM
Any of you guys carry a personal gps while deployed? I leave soon and considered getting one, thanks.
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ljh824  [Team Member]
3/30/2011 10:36:51 AM
I bought a Garmin Fortrex 401 for my deployment to Afghanistan next month. Just found out I may not need it due to my ever changing mission. I'm going to bring it anyway. I like the wrist mounted platform so you have the ability to nav "hands free" for the most part. The Foretrex isn't a color screen however. Just compass, basic waypoints, nav tools, etc.
ATACORION  [Team Member]
3/30/2011 11:57:53 AM
I know pilots who carried them in there E&E bags if we went down, but now we carry the PRC-112's and the PRC 149's and those have built in GPS units and allow texting to SAR assets.
Besides my plan was always to knife the guy and steal his shit anyway, hes the reason we are on the ground right, obviously didnt do his job?
daemon734  [Team Member]
3/30/2011 1:22:33 PM
I carry a personal foretrex 401 and use it 20 times a day.
cavscouty  [Team Member]
4/2/2011 12:08:24 AM
Quite a few people with me use the foretex 301/401. It's prettty nice.
tc556guy  [Team Member]
4/2/2011 6:49:39 PM
Last time I carried a personal Magellan as a backup. This time I'll be using a 401.
Pegasus6  [Team Member]
4/3/2011 2:42:22 AM

Originally Posted By daemon734:
I carry a personal foretrex 401 and use it 20 times a day.

I used to have an Etrex. The 401 is so superior it doesn't even compare.
JJ1234567  [Member]
4/3/2011 2:29:48 PM
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.
tc556guy  [Team Member]
4/3/2011 3:43:04 PM
Originally Posted By JJ1234567:
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.


And when you're dismounted, everything the gov't might issue you is 3-4 times the size of commercially available stuff.

The PMTs were being issued wrist-mounted GPS units when iw as in Kandahar, if you were lucky enough to be in KAF when the shipments arrived.
daemon734  [Team Member]
4/3/2011 3:52:42 PM

Originally Posted By JJ1234567:
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.


Bullshit on all accounts.

1) "unsecure" GPS is issued to units all over the place. If your PL has not signed for a garmin something is wrong with your unit. Im no, tht sure how GPS signal can be "tampered with" by the enemy, that's just plain silly. if you have a locator like the RHINO's you just turn it off.
2) Everyone here has trucks, everyone also walks a lot. Redundancy is not a bad thing, especially when its your ass on the line
3) Complete fabrication. My 401 gets signal just as quick inside of a 40 ton JERRV running CREW full blast as it does out in a field. My 60CS has to be held to a window to get satttelites as it has trouble picking them up inside the truck. Not from the crew, but from the giantmetal box its in.

If my unit was giving me this info I would be scared to deploy with them.
TheFreepster  [Team Member]
4/3/2011 8:48:54 PM
got issued the ole etrex myself, worked fine
JJ1234567  [Member]
4/3/2011 10:50:38 PM
Originally Posted By daemon734:

Originally Posted By JJ1234567:
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.


Bullshit on all accounts.

1) "unsecure" GPS is issued to units all over the place. If your PL has not signed for a garmin something is wrong with your unit. Im no, tht sure how GPS signal can be "tampered with" by the enemy, that's just plain silly. if you have a locator like the RHINO's you just turn it off.
2) Everyone here has trucks, everyone also walks a lot. Redundancy is not a bad thing, especially when its your ass on the line
3) Complete fabrication. My 401 gets signal just as quick inside of a 40 ton JERRV running CREW full blast as it does out in a field. My 60CS has to be held to a window to get satttelites as it has trouble picking them up inside the truck. Not from the crew, but from the giantmetal box its in.

If my unit was giving me this info I would be scared to deploy with them.


This was info put out by 1st Army. As far as unsecured goes, they claimed that the signal could be tampered with to provide a false return and poor directions.
G23RTF  [Team Member]
4/3/2011 11:34:34 PM
Originally Posted By MNshooter:
Any of you guys carry a personal gps while deployed? I leave soon and considered getting one, thanks.


We are running in trucks, if all 4 trucks gps go down were fucked, no gps is gonna help ya....
daemon734  [Team Member]
4/4/2011 4:57:00 AM

Originally Posted By JJ1234567:
Originally Posted By daemon734:

Originally Posted By JJ1234567:
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.


Bullshit on all accounts.

1) "unsecure" GPS is issued to units all over the place. If your PL has not signed for a garmin something is wrong with your unit. Im no, tht sure how GPS signal can be "tampered with" by the enemy, that's just plain silly. if you have a locator like the RHINO's you just turn it off.
2) Everyone here has trucks, everyone also walks a lot. Redundancy is not a bad thing, especially when its your ass on the line
3) Complete fabrication. My 401 gets signal just as quick inside of a 40 ton JERRV running CREW full blast as it does out in a field. My 60CS has to be held to a window to get satttelites as it has trouble picking them up inside the truck. Not from the crew, but from the giantmetal box its in.

If my unit was giving me this info I would be scared to deploy with them.


This was info put out by 1st Army. As far as unsecured goes, they claimed that the signal could be tampered with to provide a false return and poor directions.


Note to self: don't ever deploy with 1st army.
FightingHellfish  [Team Member]
4/4/2011 5:03:22 AM
Originally Posted By JJ1234567:
Originally Posted By daemon734:

Originally Posted By JJ1234567:
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.


Bullshit on all accounts.

1) "unsecure" GPS is issued to units all over the place. If your PL has not signed for a garmin something is wrong with your unit. Im no, tht sure how GPS signal can be "tampered with" by the enemy, that's just plain silly. if you have a locator like the RHINO's you just turn it off.
2) Everyone here has trucks, everyone also walks a lot. Redundancy is not a bad thing, especially when its your ass on the line
3) Complete fabrication. My 401 gets signal just as quick inside of a 40 ton JERRV running CREW full blast as it does out in a field. My 60CS has to be held to a window to get satttelites as it has trouble picking them up inside the truck. Not from the crew, but from the giantmetal box its in.

If my unit was giving me this info I would be scared to deploy with them.


This was info put out by 1st Army. As far as unsecured goes, they claimed that the signal could be tampered with to provide a false return and poor directions.


The Taliban haven't made the leap from wiping their ass on a smooth rock yet (in most cases).... spoofing your Garmin might be down the road a bit.
FightingHellfish  [Team Member]
4/4/2011 5:25:55 AM
I would consider a personal GPS to be an essential gear item if you have an outside-the-wire mission, especially if you are a leader.

Lots of guys like to use wrist-mounted units, I prefer a full-sized, full-color, SD compatible receiver. I carry it in a pouch on my chest. Its not as readily available as a wrist unit, but it does more.

Get a digital map of your AO and use a utility (find it online) to make a GPS compatible map for your area.

When you go on mission make a point to save (and give a good label to) all points of interest, landmarks, CPs, ANA and ANP sites, etc. If you don't go back to the area for a while, the info will be gold when you do.

At the start of each mission, clear your "tracks". At the end of each mission, save your "tracks" and label it.... "Trail to Shitholiabad" or "ASR Clusterfuck." The next time you drive ASR Clusterfuck you can go into your saved tracks and select display 'ASR Clusterfuck' and you'll have the map info from last time displayed. Very useful if you go a lot of places, because lots of Afghan roads are unmarked, unsigned dirt trails. If you figured out ASR Clusterfuck in the daytime, you'll love that track data when its 0300 and your blacked out on a QRF call out.

You can load all the preplanned targets into your GPS as waypoints, and then when you are on patrol you can use the "Goto" arrow function to give you a pointer and distance, which will let you readily verify your preplanned targets and call a "Shift From a Known Point" mission with accuracy and in a fucking hurry.

If you get the chance to use a helicopter to recon missions, your GPS can be used as a tool to save waypoints and tracks, and then verify locations of things that you saw and photographed against map coordinates.

The ability to save 10 digit grids is also good for report writing after your mission and little things like calling nine-lines.

There are lots of other uses too.

The newer systems will work in a guntruck. The CIED systems don't block GPS.

Spend the money, get a decent system. Learn to use it. Then, when you get home, you can annoy the fuck out of your friends during hunting season by showing off all your HSLD GPS skills.
Guillotine  [Member]
4/9/2011 12:12:36 PM
Originally Posted By tc556guy:


And when you're dismounted, everything the gov't might issue you is 3-4 times the size of commercially available stuff.


wrong, all our team leaders and above were issued garmin foretrex 101s. way smaller than a DAGR.

Being the platoon's RTO I use my GPS every 20 minutes out on patrol to call in front line traces. During an 8 hour movement you do the math, I use mine a lot. The 101s are OK, but I gave mine up quick because I brought my own Garmin Etrex Legend. I love it and it fits perfectly into the issued flashbang pouch. Some guys bought the foretrex 401s which work way better than the 101s. I don't even need my GPS anymore though because I am going to be using a Harris 117G instead of the trusty ol ASIP, which has a GPS puck and wrist remote for the radio where I can access my GPS reading. The only person who carries a DAGR dismounted is our FO, but the DAGRs have nifty firemission quick calc shit. Otherwise the DAGRs stay in the trucks (which we don't use often because we are light infantry anyway).

Buy your own GPS, it is worth it.
tc556guy  [Team Member]
4/9/2011 12:35:37 PM
Originally Posted By Guillotine:
wrong, all our team leaders and above were issued garmin foretrex 101s. way smaller than a DAGR.



Only going off my personal experience.

In '08 in Helmand we weren't issued the wrist GPS
In 09 in Kandahar some of the teams were getting wrist GPS units, can't recall the model...might have been the 101s...; ours did not. I still had my personal Magellan, and I'd been issued a DAGR by my unit when I left Kabul in early 08.

I've bought my own 401 for my next deployment.
Blackrock  [Member]
4/9/2011 9:09:49 PM
Originally Posted By daemon734:

Originally Posted By JJ1234567:
Originally Posted By daemon734:

Originally Posted By JJ1234567:
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.


Bullshit on all accounts.

1) "unsecure" GPS is issued to units all over the place. If your PL has not signed for a garmin something is wrong with your unit. Im no, tht sure how GPS signal can be "tampered with" by the enemy, that's just plain silly. if you have a locator like the RHINO's you just turn it off.
2) Everyone here has trucks, everyone also walks a lot. Redundancy is not a bad thing, especially when its your ass on the line
3) Complete fabrication. My 401 gets signal just as quick inside of a 40 ton JERRV running CREW full blast as it does out in a field. My 60CS has to be held to a window to get satttelites as it has trouble picking them up inside the truck. Not from the crew, but from the giantmetal box its in.

If my unit was giving me this info I would be scared to deploy with them.


This was info put out by 1st Army. As far as unsecured goes, they claimed that the signal could be tampered with to provide a false return and poor directions.


Note to self: don't ever deploy with 1st army.
= Soup sandwich, they did our Mob up, Dear God its a wonder anyone survived.

CAsoldier  [Team Member]
4/10/2011 10:25:06 PM
oh first army

that information will be correct eventually but you cant talk about it open source

right now, its all false. first army is gay

im really considering a 401 as well. anything we should know about the unit?
turp_dog  [Team Member]
4/26/2011 9:44:27 PM
Originally Posted By Blackrock:
Originally Posted By daemon734:

Originally Posted By JJ1234567:
Originally Posted By daemon734:

Originally Posted By JJ1234567:
We were specificly told not to bring personal GPS for 3 reasons:

1) they were not secure, and could be tampered with by the enemy
2) we are running gun trucks, and every truck has a dagger.
3) the crew systems would interrupt the signal on your unit.

dont know what you mission is so cant be too much more helpful than what we were told.


Bullshit on all accounts.

1) "unsecure" GPS is issued to units all over the place. If your PL has not signed for a garmin something is wrong with your unit. Im no, tht sure how GPS signal can be "tampered with" by the enemy, that's just plain silly. if you have a locator like the RHINO's you just turn it off.
2) Everyone here has trucks, everyone also walks a lot. Redundancy is not a bad thing, especially when its your ass on the line
3) Complete fabrication. My 401 gets signal just as quick inside of a 40 ton JERRV running CREW full blast as it does out in a field. My 60CS has to be held to a window to get satttelites as it has trouble picking them up inside the truck. Not from the crew, but from the giantmetal box its in.

If my unit was giving me this info I would be scared to deploy with them.


This was info put out by 1st Army. As far as unsecured goes, they claimed that the signal could be tampered with to provide a false return and poor directions.


Note to self: don't ever deploy with 1st army.
= Soup sandwich, they did our Mob up, Dear God its a wonder anyone survived.



Thats a fact. I think Iraq was preferable to being around those idiots at pre-mob
Chaingunzz  [Member]
4/27/2011 9:52:27 PM
As a helo pilot with 3 different GPS's in the aircraft, I can say I won't go out the door without a Foretrex 301 zip tied to my vest. I've got the PRC-112B and the 147 from Uncle Sam but one thing no one thinks about- Battery LIFE!! This also goes for your Foretrex. Bring extra batteries, and practice all the functions of whatever unit you get. When it comes time to use it is not the time to get your learn on.

As for the Haj jamming your GPS, not particularly likely- although I personally was jammed in the help in vicinity of Kabul Airfield last summer- not sure if it was intentional.

GPS coordinates being compromised- If you're putting rescue coords, those get frozen and subsequently changed the moment they are either used or even thought of being compromised.

Lastly, when the batteries fail, get out the Suunto Compass and a map and get to work It never fails to function...

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