---------------------------------------------------------- Avionics-List Digest Archive --- Total Messages Posted Sat 11/19/05: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 06:43 AM - Re: WX-8 Stormscope (Mike) 2. 08:19 AM - Re: GPS IFR requirements (Fred Fillinger) 3. 10:45 AM - MD200-306 indicator and dual navs () ________________________________ Message 1 _____________________________________ Time: 06:43:18 AM PST US From: "Mike" Subject: RE: Avionics-List: WX-8 Stormscope --> Avionics-List message posted by: "Mike" Randy, I have not heard of the antennas being that sensitive to damage, just false indications. So I wouldn't worry too much about that issue. I would bring up the fact that the WX8 has been out of production for well over 10 maybe even 20 years, so the unit is old. I will look around for an installation manual for that unit and get back to you. Mike -----Original Message----- From: owner-avionics-list-server@matronics.com [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Brinker Subject: Re: Avionics-List: WX-8 Stormscope --> Avionics-List message posted by: "Brinker" Thanks Mike, I had heard that they need to be handled with care since it was prossible for static electricity to fry the antenna. But am not sure what handling with care means. Rubber gloves ?? Cloth gloves ? But then again if it was not handled correctly by the un-installer then it may still have a problem. I'm keeping my finger's crossed. I have had mostly good luck off of ebay but there can always be a problem and I don't want to create it. Even though the system wiring is suppose to be complete I may run into a problem figuring out the connecting wires. I do not want to reverse the polarity etc. and fry the unit. If so would you have a schematic showing the proper connections ? Thanks Randy ----- Original Message ----- From: "Mike" Subject: RE: Avionics-List: WX-8 Stormscope > --> Avionics-List message posted by: "Mike" > > Randy, > > Yes, you can put the antenna on the roof of your house if you want and > watch the storms come in. You are looking for electrical discharges in > the proper direction and intensity. It's been a long time since I used > a WX 8 but if memory serves me the colors change based on the rate of > strikes in a certain sector and the range is based on the amplitude of > the strikes. But in short, you should be able to set the unit up at > your house and check it by looking at radar returns on the TV. The WX 8 > will only show storms that have convection. No lighting, no return. As > far a putting it on another plane or vehicle, the units are very > susceptible to electric noise. It is very possible to get false > indications if the installation is not done correctly. We use a mapping > test set to find the best location on airplanes before installation. > > Mike > > Lancair Legacy > TS-11 > Kitfox > A-320 > > -----Original Message----- > From: owner-avionics-list-server@matronics.com > [mailto:owner-avionics-list-server@matronics.com] On Behalf Of Brinker > To: avionics-list@matronics.com > Subject: Avionics-List: WX-8 Stormscope > > --> Avionics-List message posted by: "Brinker" > > > Bought a WX-8 Stormscope off of ebay complete with wiring > antenna > etc. I will not be installing in my Comp 6 for a while. Question is: > Is it > possible for me to test this unit myself, maybe installing temporarily > in > another airplane or bench testing ? And what should I be looking for > when > testing ? > > Randy > > > -- > Checked by AVG Free Edition. > 11/18/2005 > > > -- > Checked by AVG Free Edition. > 11/18/2005 > > > -- Checked by AVG Free Edition. 11/18/2005 -- Checked by AVG Free Edition. 11/18/2005 ________________________________ Message 2 _____________________________________ Time: 08:19:38 AM PST US From: "Fred Fillinger" Subject: Re: Avionics-List: GPS IFR requirements --> Avionics-List message posted by: "Fred Fillinger" > --> Avionics-List message posted by: > Hello Fred, I think that you are right on target. Please let me add a few > words about complying with AC 20-138A from a recent email exchange. OC > (snip) Interesting stuff you posted, and I'll take a crack too at the FARs, for good or ill. First, I draw a distinction (as does FAA) between enroute and approach-certified GPS, where common sense should rule for our own safety, if GPS the sole approach equipment. But from an FAR standpoint, it seems: Part 91 binds us only to have "appropriate" navigation equipment for IFR, not "approved" equipment. So for a homebuilt, we buy an old ILS receiver off eBay, removed from a Mexican airplane which crashed. Our old tube-type Heathkit scope and stuff still work; we cobble a simple circuit for a test signal; make the thing seemingly work properly. We're not bound by Parts 43 and 65 re fixing it. Then we take these boxes and duct-tape 'em to the top of the panel, hot-wired to the battery. File and go shoot an approach in actual conditions of 200-1/2. This is hardly legal for type-certificated aircraft, but for a homebuilt I know of no advisory document (AIM or AC) which prohibits this as a matter of installation, even one more properly done. Except that we're not to fly recklessly and cause a problem with the above -- like buzzing a high-school soccer game at 200 AGL in the fog, 2 miles off LOC course. So 3 FAR violations -- airworthiness, appropriate, and reckless. But technically again, I don't see why -- at higher GPS minimums so far -- FAA would feel the need to inject itself into a GPS installation process in a homebuilt. So relevant here is your citing someone's experience in asking FAA to actually get involved, and where FAA got bored with the matter. And the same restriction should exist as to how we effect the installation and fly IFR with it, and cause a reckless operation problem over the kids' soccer game. Latter could merely be doing approaches with an terminal/enroute-only GPS, FAA will say. So we end up following the spirit of the AC and AIM, but no formal FAA approval. Reg, Fred F. ________________________________ Message 3 _____________________________________ Time: 10:45:41 AM PST US From: Subject: Avionics-List: MD200-306 indicator and dual navs INNOCENT GLOBAL 0.0011 1.0000 -4.4747 --> Avionics-List message posted by: Avionics-List message previously posted by: <> 11/19/2005 Hello Bill, To respond: <> 1) Not really. Early on the manufacturer felt the SL-30 was very sensitive to this calibration issue and wanted the SL-30 to be connected directly to one indicator. That was the company policy and the word they put out. As time has gone by more field experience has been gained and SL-30 modifications may also have been made. Now the experts say it is OK to connect the SL-30 along with another navigation information source to one indicator. I can dig back into my files for more specifics if you like. <