Re: [time-nuts] GPS antenna in attic?

While NPT (US) and BSPT (UK) are different, 1/2" and 3/4" variants are both 14 threads per inch and are similar enough to intermate, but are unlikely to seal. Since sealing is not a requirement here it ought to be good enough. Failing that, maybe one of our members on the continent would send yo

Re: [time-nuts] GPS antenna in attic?

In practice, I suspect what I use will be what I have on hand at the moment ;-) On 11/26/2012 9:34 PM, J. Forster wrote: You might better use RTV. I's plenty strong enough and can be taken apart if needed. -John = Unfortunately not, it's part of the molded bottom piece of the ant

Re: [time-nuts] GPS antenna in attic?

You might better use RTV. I's plenty strong enough and can be taken apart if needed. -John = > Unfortunately not, it's part of the molded bottom piece of the antenna > casing. > > On 11/26/2012 9:24 PM, Chris Albertson wrote: >> >> >> >> On Mon, Nov 26, 2012 at 5:51 PM, Peter Gottlieb >

Re: [time-nuts] GPS antenna in attic?

Unfortunately not, it's part of the molded bottom piece of the antenna casing. On 11/26/2012 9:24 PM, Chris Albertson wrote: On Mon, Nov 26, 2012 at 5:51 PM, Peter Gottlieb > wrote: The antenna I got fron Nichegeek on ebay uses British Pipe Threads! Just can

Re: [time-nuts] GPS antenna in attic?

I suppose, although interestingly there isn't anything close. It just misses one size and the next smaller one it swims in. Although with enough epoxy... OTOH, who cares, it's sitting up where nobody will look closely and it's not like it's a structural element. So your suggestion looks like

Re: [time-nuts] GPS antenna in attic?

On Mon, Nov 26, 2012 at 5:51 PM, Peter Gottlieb wrote: > The antenna I got fron Nichegeek on ebay uses British Pipe Threads! Just > can't get anything here that matches it. Perhaps I should just get a unit > with regular NPT size threads? Can anyone recommend a specific model which > works well

Re: [time-nuts] GPS antenna in attic?

On 11/26/2012 8:51 PM, Peter Gottlieb wrote: The antenna I got fron Nichegeek on ebay uses British Pipe Threads! Just can't get anything here that matches it. Perhaps I should just get a unit with regular NPT size threads? Why not just get a pipe nipple of close size, and grind off enough of

Re: [time-nuts] GPS antenna in attic?

The antenna I got fron Nichegeek on ebay uses British Pipe Threads! Just can't get anything here that matches it. Perhaps I should just get a unit with regular NPT size threads? Can anyone recommend a specific model which works well with the Thunderbolt and has such a threaded bottom? Peter

Re: [time-nuts] GPS antenna in attic?

You don't need that. Just a straight vertical pipe is perfect for a GPS antenna. All the outdoor are designed with the coax dropping straight down vertical into a pipe.All of them have a mount with pipe threads that makes a 100% waterproof connection.Lacking a mount, use a pipe flange and

Re: [time-nuts] GPS antenna in attic?

If you were going to add a pipe for coax purpose, wouldn't you want something like the electrical service inlet? They have a bit of a hook on the top to reduce water penetration. ___ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to

Re: [time-nuts] GPS antenna in attic?

quot;Discussion of precise time and frequency measurement" Sent: Monday, November 26, 2012 10:52:26 AM Subject: Re: [time-nuts] GPS antenna in attic? They are no harder than a chimney to keep leakproof unless they are flush in which case everything said is true.   You need structure and a leakpro

Re: [time-nuts] GPS antenna in attic?

They are no harder than a chimney to keep leakproof unless they are flush in which case everything said is true. You need structure and a leakproof membrane and proper flashing to redirect water Sent from my iPhone On Nov 26, 2012, at 10:38 AM, "J. Forster" wrote: > I considered that about

Re: [time-nuts] GPS antenna in attic?

The tax assessors count the vent pipes when trying to guess at numbers of bathrooms, sinks, etc. in your house. Add too many, and you could be seeing an increase in your tax bill. -Chuck Harris Stan, W1LE wrote: Or add vent pipe penetrations ~ 1.5" OD PVC pipe and put the GPS antenna on top o

Re: [time-nuts] GPS antenna in attic?

I considered that about 5 years ago when I reroofed. The roofing contracctor told me that anything like a skylight is very, very hard to make and keep leakproof. You really, really don't want a leaky roof. -John = > Or install a frosted dome type skylight as a radome lights the a

Re: [time-nuts] GPS antenna in attic?

Or add vent pipe penetrations ~ 1.5" OD PVC pipe and put the GPS antenna on top of the pipe. Allows for vertical position variations. and the soft rubber gland allows for changes later. Had a new roof put on last year and I added 2 each of these plumbing vent type roof penetrations. Also adde

Re: [time-nuts] GPS antenna in attic?

Or install a frosted dome type skylight as a radome lights the attic and allows for better reception Sent from my iPhone On Nov 25, 2012, at 10:15 PM, "J. Forster" wrote: > There are ways to do it w/o drilling holes. Most all houses have vent > stacks for the plumbing, typically 3 or 4 inch ca

Re: [time-nuts] GPS antenna in attic?

Hi I've spent a lot of time putting a lot of antennas in attics of many houses. I can't say any of them "didn't work". However, I never was happy with the performance of any of them. Even a poorly located outdoor antennal outperformed them. … and yes I'm a member of the "no antennas outdoors cl

Re: [time-nuts] GPS antenna in attic?

> I'm beginning to set up in my new house and planning where all my various > antennas are going to go. Being a wood frame building, I was wondering if it > was sufficient to simply mount my Thunderbolt GPS antenna high in the attic. > It > would be convenient as there is already a high qualit

Re: [time-nuts] GPS antenna in attic?

tack worked nicely. -Dave - Original Message - From: "J. Forster" To: "Discussion of precise time and frequency measurement" Sent: Sunday, November 25, 2012 7:15:05 PM Subject: Re: [time-nuts] GPS antenna in attic? There are ways to do it w/o drilling holes. M

Re: [time-nuts] GPS antenna in attic?

There are ways to do it w/o drilling holes. Most all houses have vent stacks for the plumbing, typically 3 or 4 inch cast iron or thick plastic. You can clamp a couple of feet of pipe onto one of those and run the wire to under an eve or through a gable end, adding a drip loop of course. But, if

Re: [time-nuts] GPS antenna in attic?

On Sun, Nov 25, 2012 at 8:50 AM, Peter Gottlieb wrote: > I'm beginning to set up in my new house and planning where all my various > antennas are going to go. Being a wood frame building, I was wondering if > it was sufficient to simply mount my Thunderbolt GPS antenna high in the > attic. It

Re: [time-nuts] GPS antenna in attic?

-- From: "Peter Gottlieb" Sent: Sunday, November 25, 2012 11:50 AM To: "Discussion of precise time and frequency measurement" Subject: [time-nuts] GPS antenna in attic? I'm beginning to set up in my new house and planning where all my vario

Re: [time-nuts] GPS antenna in attic?

n...@verizon.net said: > I'm beginning to set up in my new house and planning where all my various > antennas are going to go. Being a wood frame building, I was wondering if > it was sufficient to simply mount my Thunderbolt GPS antenna high in the > attic. It would be convenient as there is

Re: [time-nuts] GPS antenna in attic?

Generally, it should work most of the time, which is probably good enough to discipline your local standard. Obviously, you want it above any foil backed insulation. Generally, near the ridge would be good, as ridges don't get that much snow cover. I've had a handhelg Garmin lock up OK in a lab o

Re: [time-nuts] GPS antenna in attic?

I do not know about the Thunderbolt in particular but some GPS receivers are more sensitive than others and will work acceptably like you describe. My house has similar construction and all of my GPS receivers except maybe for my GPS18-5Hz hockey puck will operate in the attic under the asphalt sh

[time-nuts] GPS antenna in attic?

I'm beginning to set up in my new house and planning where all my various antennas are going to go. Being a wood frame building, I was wondering if it was sufficient to simply mount my Thunderbolt GPS antenna high in the attic. It would be convenient as there is already a high quality CATV lin