CSI out of business

rharshberger

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I have a receiver, just no transmitters at this time, I was told that Walston can make the transmitters if you know the Freq.
 

David Schwantz

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I spoke with them today, they have no product left. They have no dealers. They could not recommend anyone making something similar.
 

Handeman

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I have a receiver, just no transmitters at this time, I was told that Walston can make the transmitters if you know the Freq.
Actually Walston has been out of business for years. Walston never actually made anything. They just relabeled and resold what was made by Wildlife Materials Inc.
You can get transmitters from them and L. L. Electronics, among other. Most work in the 148 -225 Mhz range. Ours was in the 216 range.
 

cls

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I have a receiver, just no transmitters at this time, I was told that Walston can make the transmitters if you know the Freq.

CSI xmitter was on 222.100MHz. quite rude, that is the Morse code calling frequency for hams. Doesn't matter much, there's no ham activity at rocket ranges...
 

cwbullet

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I own a mixture of LL Electronics (Radiotracking.com and CSI). I might order a Marshall in the future.

Then again, I might move the GPS.
 

ChuckH

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Yes! The nice thing about the ham radio options is that you can always DF even if the packets don't decommutate.
Unless the unit just stops transmitting mid-flight, which I have had happen. Of course this can happen with simple RDF trackers as well (seen that happen too), which is why I like redundancy.
 

cls

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nless the unit just stops transmitting mid-flight, which I have had happen.

I had several Big Red Bee GPS units. They were terrible about quitting transmit in flight, anything over 8 GS acceleration. Lost a very expensive L3 project because of that. It sent one scrambled packet right after ignition... So yeah, always use a tracker for backup.
 

rharshberger

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My ComSpec transmitters were on LPRS CH-25 = 216.6125MHz, Wildlife Materials might make that will work, have to send them an email.
 

mikec

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I had several Big Red Bee GPS units. They were terrible about quitting transmit in flight...
Were these the old ones with the Trimble GPS? The newer ones use Ublox and should be better.

Big Red Bee is still in business and still making their 450 MHz RDF product.
 

dpower

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This is a bummer, their receiver has worked well for me, and many in my club. There are probably 2-3 dozen, including a club-owned unit that we loan out to anyone who's a member.

I use L.L. Electronics XLF 6v transmitters with my Com-Spec, in the 219MHz band (no ham license required), they work great, and are small enough to easily be placed in just about any rocket. Good support too, I've talked with them over the phone regarding repair & specific frequencies. They repaired one that lawn-darted from 2000' (though it looked like a completely new unit), and I bought a 2nd so I'd always have a spare.
 
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cls

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Were these the old ones with the Trimble GPS? The newer ones use Ublox and should be better.

Big Red Bee is still in business and still making their 450 MHz RDF product.
Yes, I had the old ones, 2006ish? to 2009. They were terrible in many ways. Greg Clark refused to understand or acknowledge, even when I showed him directly (Black Rock launch, he watched, had an APRS receiver)!

The Bee Line trackers were excellent, though. Too expensive now...

Wish I had bought CSI stuff 10 years ago.
 

amarillo_rocket

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I started using LL Electronics trackers and transmitters several 6-7 years ago. I have never had an issue with their trackers or transmitters. Their prices are reasonable and reliability has been excellent. LL Electronics can handle most frequencies.
 
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