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Post by station8 on Mar 12, 2017 9:38:30 GMT
Howdy all: Next team speak meeting is march 18, 2017 at 7pm est I will be there and we can talk Jim.
Carl this would be a good show for you to record.
Anyone and everyone from part15 sites are welcome to ask me questions.
Please write your question down on a sheet of paper so you don't forget.
I will keep thing very simple in response to the questions.
I hope allot of people can join us in this discussions.
Pass the word around about the meeting.
Have a great day station 8
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Post by Deleted on Mar 12, 2017 13:08:52 GMT
The Upcoming ALPB Meeting on Mar. 18
Jeff Station8 says: "Carl this would be a good show for you to record."
Good idea Jeff! We will have our microphones and recorders on deck for a good show!
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Post by station8 on Mar 12, 2017 14:47:38 GMT
Howdy All: I have made up a discussion list to talk about at the meeting !
And if your lucky I might give some trade secret out.
Come one come all, pass the word out.
See ya later station 8
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Post by jimhenry2000 on Mar 12, 2017 22:05:21 GMT
The Upcoming ALPB Meeting on Mar. 18Jeff Station8 says: " Carl this would be a good show for you to record." Good idea Jeff! We will have our microphones and recorders on deck for a good show! |
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Post by jimhenry2000 on Mar 12, 2017 22:13:52 GMT
OK, so I can replace the coax with something like AWG #10 stranded, but unshielded, and possibly cut the length to 40 feet or a little less. Would that help? What's the best way to attach the cable to the antenna if not using coax connectors, just wrap the lead around the threaded base and solder it? Eventually I plan to put the xmtr in my enclosure and then the transmission line length will be a foot or less. Howdy: Here some more info Jim. 1) You should NOT run a 50 ohm cable at 50 foot, This is one problem. I have found in my testing going behind about 40 foot your loosing range and the rf output to the Antenna. You just can't hook up a 50 ohm cable direct to your tx without knowing The proper output impedance of the tx. This is the reason why your loosing range! With very low power you need to find ways to keep from having rf loss and It does make a big difference in what you do. I did make my sstran 5000 go 2 mile without a ground system with the antenna base was 6 foot off Ground level. So it can be done. Hop this help station 8 |
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Post by station8 on Mar 12, 2017 23:36:16 GMT
Howdy all: Jim I will answer
As for a long transmission line it is an issue and you should NOT do !
I will go into the meeting about transmission length on legal low power tx
I have done testing on this personally and you will be surprised on the results!!
As for making a connector for the antenna you could use a large ring terminal and will need a lock
Washer and a nut to make a solid connection !!
Or use an adapter that has the screw in fitting for the antenna on one end and a wire terminal
Fitting on the other end !
Now as for the 10 awg wire you can use it,BUT must keep the length short personally I would
NOT go beyond 8 inches !
Now when you set the tx up set it up anywhere from 6 to 10 feet off ground level or what ever high you feel
Comfortable with for testing purpose only !
Then do a range test driving around.
Normally when your ready to go higher on the installation you will see improvement like
Dead spots and weak area fill in.
I will be talking about this in more detail at the meeting as well
Come one and all to the APLB meeting march 18, 2017 to find out more
You will need team speak.
Have a great day station 8
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Post by jimhenry2000 on Mar 13, 2017 2:54:13 GMT
Howdy you all: Jim I'll try to answer some information for you, But I will need info from you. 1) What kind of range you want ? 4 miles? 2) How high are you ? Example 2 story house or ground level 2 story house which is approximately 150 ft. above street level. Antenna is mounted on a 25 ft.telescoping fiberglass mast on 2nd floor deck, so top of the antenna is about 45 feet above ground and about 200 ft above street level.3) Setup of your tx site ? It's in my radio workshop which is a converted 2nd floor bedroom that opens to my 2nd floor deck.I never was a fan of the 102 inch whip antenna,Its just me. If you want to use the 102 inch its fine,But you should use the internal 5000 coil Then take some solid copper wire shorter the better and hook it up to the antenna & tx And tune for max reading and should be fine. I guess I'll have to figure out how to use the internal coil.I have used stranded wire vers. Solid copper wire and got better performance out of Solid copper wire in my test ! As for the isotron I have heard different range result on that antenna with different tx So you will have to test and see what you get for range. I can tell you from experience part 15 works different then the real broadcast stuff It either works or don't work!! And you won't know your range until you do a drive test and I know this from fact after doing over 30 antenna Test with various tx test!! Now when using the antenna for the sstran 3000 on the 5000 make sure you bypass the internal Coil due to the base coil on the antenna that is your manual atu for tuning the antenna correctly! It be easy to talk on alpb team speak to help you out better. Then I could tell you everything I know. I hope this help you out more. Have a great day station 8 Thanks again for all the help. I have since switched from the coax to the AWG 10 for the antenna feed, and since I am no longer using a coax connector, have now run the external ground directly to the ground terminal on the transmitter (since my antenna mast is fiberglass the coax connector was my only outside ground point before. Now I have none.I also believe I need to move from 1660 to 1680. 1660 is pretty open during the daytime but starting in the afternoons I seem to get a good bit of interference from a foreign language station in Jersey City. I can't imagine I am interfering with them but they sure cause me a problem in the afternoon and evenings! BTW this is the outdoor enclosure I plan to use for my permanent install on the antenna. It's made by Multilink. We currently use these as fiber demarcs when installing FTTH (Fiber to the home). All openings as you can see are in the bottom of the cabinet and each slot foam enclosed. I do have some concerns though. These are always wall mounted in these applications which by itself gives some protection from the elements. Also we only use these to house passives (fiber optic cables, bulkheads, and occasionally passive filters (muxes/demuxes). In my case, housing a mast mounted active transmitter in this enclosure I'm not so sure how well it will keep moisture out. There is no rubber grommet running around the door so I'm considering running a very fine bead of silicone all around the door closure, and in addition, encasing the transmitter in a heavy duty plastic bag inside the enclosure and then again encasing the entire enclosure in another heavy duty plastic bag. I do have a heat gun and lots of heat shrink tubing, but I wonder if larger heat shrink bags might be available??
Jim |
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Post by station8 on Mar 13, 2017 9:46:54 GMT
Howdy all: Jim here is your answers.
As for your range with the sstran 5000 I do not know if you will get that.
I only know of 2 tx getting that range in a test and that is the procaster and the Talking House 5.0 tx.
I got 4 miles with my T.H 5.0 with the antenna 6 foot off ground and NO ground attached .
But You will have the height working for you that will help you out better.
We can tak more on team speak about this it would get to long on here for me to type.
I don't like to type allot, But will talk to you more OK.
Now as the case goes if you should get a case its UV protective and has a good gasket around the seal
And you can find these cases its just a little research and also the case should be thick with mounting
Hole attached.
Now wrapping the tx in a plastic bag then put in case I would not due personally !
Now with plastic cases what you need to be very concern about is the mounting if
You don't do it right your going to have a issue when the plastic dry rots and the tx will fall.
Now if you get a metal enclosure and find one with mounting hole on the case it will hold up for years
With out falling and take more stress in bad weather.
I can tell you guys so much more on team speak and when I do you better have pen and paper ready to write
Down and keep in your records !
Have a great day station 8
Note: I'm getting off here due to is screwing up allot again, its got to be the software
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Post by jimhenry2000 on Mar 14, 2017 4:54:35 GMT
Howdy all: Jim I will answer As for a long transmission line it is an issue and you should NOT do ! I will go into the meeting about transmission length on legal low power tx I have done testing on this personally and you will be surprised on the results!! As for making a connector for the antenna you could use a large ring terminal and will need a lock Washer and a nut to make a solid connection !! Or use an adapter that has the screw in fitting for the antenna on one end and a wire terminal Fitting on the other end ! Now as for the 10 awg wire you can use it,BUT must keep the length short personally I would NOT go beyond 8 inches ! Now when you set the tx up set it up anywhere from 6 to 10 feet off ground level or what ever high you feel Comfortable with for testing purpose only ! Then do a range test driving around. Normally when your ready to go higher on the installation you will see improvement like Dead spots and weak area fill in. I will be talking about this in more detail at the meeting as well Come one and all to the APLB meeting march 18, 2017 to find out more You will need team speak. Have a great day station 8 Station8 thanks again, but a thought just occurred to me. On one of Carl's LPH shows a fellow was touting that the Talking House was the only transmitter certified to allow 300' of transmission line between the transmitter and antenna! He claimed a 4 mile range in that circumstance. So, since each of these xmtrs are limited to 100 mw, and my signal losses amount to about 100% over a 50ft coax transmitter line, how could this Talking House be doing ANYTHING across a 300' transmission line??? |
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Post by Druid Hills Radio on Mar 14, 2017 13:47:51 GMT
Reply to Jim: The Talking House was certified with a remote antenna tuner. So in fact, the internal tuner was removed from the circuit and replaced with the "final stage" some distance away.
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Post by End80 on Mar 14, 2017 13:57:07 GMT
I have a hard time believing a 4 mile range could be legally achieved, particularly without a ground.. Maybe in some extreme circumstance, but I'd have to see it to believe it
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Post by station8 on Mar 14, 2017 14:55:35 GMT
Howdy All: let see if I can clear up some information
Now I will giving it to you straight so don't let it offend you !!!
Jim the guy with the talking house with 300 foot of cable getting 4 mile
I thinks its either a misprint or misunderstanding,You will find more information at the meeting !
Now as for end 80 and other people who think the same get your heads out of the clouds !
The problem with most of you part 15 operators your stuck in hole and can't get out.
And you need to open your minds up !!
Think about this, ham radio operator have design antennas to be used without ground like the j pole
And they work well I had one for 2 meter and got good range.
The other issue I seen with some of you part 15 operators allot of you don't try different antenna design
As well different heights and setup locations before going on the to make sure you get maximum range !
At least I can say this due to I tried it personally !
I notice with some part 15 operators they make comments to some information without doing proper back ground
Home work then challenging people about what they have accomplished !
What is about that are some of you jellious or you trying to discredited someone you don't know !
Or is it because you legal broadcaster don't want us to know how to improve are range and find way to shut the door in our face
Like little kids,You guys need to grow up !!!
You can take this up with me personally and i will give it to you straight from the horses mouth !
Please open your mind up range can be increased if done correctly without breaking the law !
Have a great day station 8
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Post by Druid Hills Radio on Mar 14, 2017 14:57:42 GMT
Wow! That was nice and friendly.
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Post by jimhenry2000 on Mar 14, 2017 16:46:07 GMT
Reply to Jim: The Talking House was certified with a remote antenna tuner. So in fact, the internal tuner was removed from the circuit and replaced with the "final stage" some distance away. So is there anything besides the ATU and antenna on that extension? It seems to me that if the transmitter is on the ground then his signal must still traverse that 300 ft. to get to the ATU and antenna. Thus I don't understand the difference in losses. |
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Post by jimhenry2000 on Mar 14, 2017 16:53:33 GMT
There is a fellow in Indianapolis claiming a 6 mile range. At least that is what he claims. I believe he is using a Pro-Caster. I have a hard time believing a 4 mile range could be legally achieved, particularly without a ground.. Maybe in some extreme circumstance, but I'd have to see it to believe |
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