2 way radios with altimeters built

[guest]

motorola 2 1/2 mile radio has 14 weather channels,barometer,altimeter, and vibrate mode for those mission imposible jumps, I been using the for snowboarding and have just realized a need for them in base jumping. if anyone wants some info. email me, btw the alti works in 5ft increments up to 13,000 feet agl

blue skies

Richcomm@email.com

[guest]

If your reffering to the Motorola 6320's , I have two of them and found that the altimeter is not very accurate on A's . Even when I zero it at the bottom. I know from the FCC's website that my favorite local A is 720' . I have climbed to within 20 ft of the very top and the altimeter showed 660'. Not that big of a deal really , however accuracy is much more critical on lower stuff. In other words, If you zero out the alti and if the barometer changes (on the 30 or 40 minute climb) due to weather, the measurement will be false.

They do have some other really usefull options, as mentioned above, like the vibe mode and scrambling options. The NOAA weather channels are sometimes useful; there are eight, not forteen. I think you got the weather channels mixed up with the 14 FRS channels.

I also thaught the hands-free option (in conjunction with a headset) would be a good idea, but found that even with the sensitivity set to "low" that the wind can some times trigger the transmission continually, then you have to stop what your doing and reset it.

All-in-all, I think they have some great features, if you really want to analyze the weather on your jumps, but I wouldn't trust my life to the altimeter

If anyone wants to know anymore based on my experiences, feel free to email me.

-B

BASEic_1@yahoo.com

[guest]

. . . Just a quick note that all barometric altimeters will have this sort of inaccuracy. Worst part is, since it's due to variations in the weather it's not a relative error -- its absolute (meaning that the error is, say, +/- 50 ft whether the object you're measuring is 150 ft high or 3000 ft). Like anything, a barometric altitude measurement should be used in conjunction with at least two other methods. If the object you're looking at is low (you decide what that means), it should be lasered from the top, again in addition to two other methods.

Has anybody started a list of ways to measure stuff here? Would starting one constitute a breach of ethics?

With regards to the weather channels, I thought it might be worthwhile to point out that, while I've had excellent experiences with them in my home city, that's the only place (including a couple of other cities and a bunch of backcountry stuff) where I've been able to pick up a station. All of that in Canada; your mileage may vary.

[guest]

http://commerce.motorola.com/cgi-bin...20NiMH%20Radio

I have got so many emails for this if you dont get a response I'm sorry the website is listed above. with a retail of 129. i have them for 110 +about 5 bucks shipping.

I was thinking the communication,compas,weather was also helpful for those back country hikes

[Bryan]

Oh yeah, forgot to mention the compass. I find a compass useful when initially analyzing a site (only A's at this time :'( ) I use it to find the heading of one of the guy wires, then add 120deg. to find the others. On the morning of a jump I call 1-800-wxbrief to get the speed and direction for the winds in that area below 1000'.

I usually use this process just to get an idea if the site will be jumpable that morn, but ALWAYS use more direct methods to confirm jumpability when on my way to the top.

Annnnyway, the compass on the 6320's , when compared to a military analog compass , has been off by more than 20deg!! that much variation only compounds over long distances. (yes, I did cal the compass per the instructions in an interferance free area).

If I had it to do all over again, I'd buy two really cheap radios and a nice GPS unit.