https://www.google.ca/maps/@43.7202234,-79.4851867,17z
Hi, guys....This is the results of the test that I did for Carl. Did it this morning(July12/15). Tested coverage comparison between BETS and Part 15 transmitters.
The link at the top should, I HOPE!, show my area. I'll assume it does.
The map shows the immediate area where I am in Toronto. The star, if it's there on map, will show my house(55 Rory Rd). Used measuring distance on google map to get exact distance in feet from my transmitter location to various points.
With the Decade CM-10 operating at BETS-1, in the car I start to pick up station just as I turn off Keele onto falstaff as I approach Rainbow Park(605ft). From the other end of Rory Rd I start to get signal at 700Ft. Reception is like a local station along Rory Rd between Rainbow Park and Winscome Ave.(up and down street my street). Also hear station on the off ramp from the 401 to Keele(735 ft) although weak. Station also received perfect on Falstaff (next block south of Rory Rd) from Rainbow Park to Winscome. All houses on north and south sides of street on Falstaff would get perfect even with houses in between Rory and Falstaff. Also station is heard 2 streets to the south around Grovedale and Clubine(750ft) The distance on Rory Rd between Rainbow Park and Winscome is 560ft.
Then I took portable....the Geneva World radio which could possibly be the best FM reception you can get in a portable. Started walking around area. Signal was like the car up and down Rory Rd from Rainbow Park to Winscome and on Falstaff from Rainbow Park to Winscome. Also perfect signal on portable right up to townhouse complex opposite my house on north side of Rory(240ft). With portable didn't get as far down Rory Rd the other way as the car or couldn't really receive station walking around Rainbow Park. Also couldn't hear station on portable down at Grovedale and Clubine where I did in the car. But when I am at fringe areas with the portable I can be getting station but if I move 3ft to the left or right it's lost.....the reception areas are in pockets.
Now...I set up the Wholehouse 3 same spot operating at part 15 the way it came certified. There was a significant loss in coverage. In car, comming in from Keele didn't start to hear station until down Falstaff half way down block from Rainbow Park. Couldn't receive at all on Winscome betwwen Rory Rd and Falstaff and on Rory Rd beside the park. Only received station good on Rory Rd from 4 houses up and down street and not as good on Falstaff to the south. Didn't hear at all on the off ramp from the 401 to Keele. With portable(Geneva)....received out to street, up and down rory a couple of houses and across street but signal almost faded when I walked right up to the townhouses.
Then I did what Thelegacy wanted....I put on high power setting but changed nothing else...same stock 4" rubber duck antenna and found it close to the decade. Was a toss up as to which was better.
Now these tests were done where I am broadcasting all the time from the house and I am in the basement with the transmitter at the window about 2ft above ground. I know the ground around me is absorbing a lot of the signal and not all the radiated power gets out there. Also all the houses around hinder it also. If I were on the second floor 20ft above ground I'm sure the coverage would be better.
If on the map at the left bottom you can click to see satelite view so you can get a real picture of the landscape and and all the houses in my coverage area.
Well Carl, hopes this helps with what you were trying to do.
Oh yes, the Wholehouse was in mono and tried to see if any difference in stereo or mono but seemed the same.
Mark
A little under what 500mW will do. Plus we learned the Whole House FM transmitter 3.0 is at BETS level but from what I understand a little more harmonics than the Decade. We would get 250 feet to a portable however. We might want BETS x2 but you'll get some listeners at BETS.
Mark your tests were a good followup to what I was doing before being "outed" by loud whistle blowing pointers.
The main point is that the BETS signal level does conspicuously better than 15.239.
In fact you got impressive results for having the transmitter so low in the building. The lesson from that, without doing any more tests, is that if the transmitter were up higher, it would cover more range.
The "Gaggle Map" showed the North American Continent but there was no star leading to your location. That's o.k. Your word description was clear.
If you had typed in the rest of the link (only half shaded blue), it would have come up to my house and area. You could also google my house address which I mentioned in case the map didn't post and see the area in my test area......couldn't figure out how to transfer a web page to post there so wasn't sure if would show.
Mark
I got to see that square area Roy Road and I seen keel and could tell that the transmitter was able to go a few blocks. I'm curious that if you were on the first floor what you might have gotten this far as range. Good test results though can't complain too much.
Mark, how does the range compare between the CM-10 and the MS-100?
Couldn't hear any significant difference on my broadcsast frequency of 90.7 between the two. Never touched adjustments inside the MS-100, just used as I got it assuming it was set for BETS. The CM-10 is fixed power.
Also to thelegacy....yes I'm sure the coverage would have been a little better if I could transmit from a more favorable location and also it would do better in a rural setting than in a city where more open. Would BETS go 1/4 of a mile?....maybe in the right transmit location, without a lot of buildings around and with a good quality receiver. 1/4 mile is 1320ft. I think I remember Artisan saying he heard it a kilometer away?...but I don't know how listenable. A kilometer is about a little less than 2/3 of a mile.
Mark
In that case BETS is very close to what in looking cjbh
Direct line of sight and a very sensitive car receiver (probably close to 1uv useable sensitivity) - 1 km. That was with the car parked. Signal was weak but listenable.
Driving at that distance - lots of dropouts. Strong signal up to 1/2 km (again, line of sight, that same car radio).
More typical reception was 1/4 to 1/2 km with less sensitive car radios.