blearning,
how for are you broadcasting? How high are your Tx Rx devices?
I'm trying to go less than 100'. I went home at lunch and put both devices on the front fascia so they are facing one another. Didn't help.
Then I stopped my pickup in front and roughly measure the dead spot. It's about 16' wide, give or take.
Brad
Broadcasting about 300 feet, but anywhere in between 20 and 300.
My tx is mounted on a 10' pole so 10 feet, the rx add on modules are varying heights of 2 to 6 feet.
I doctored mine a little buy mounting them in a 1000 broadband box.
here is something to try ... lay it on the ground ... with your antenna parallel with the ground ... then go to you rx and put it on the ground the same way ... this will give you sort of an ARCH UP and out ... theoretically .. more like half a bubble on the ground ...
the TX is really is omni directional except as noted, and the RX is as well. not really directional in the direct sense of the word. Sorry ...
Here is another method:
Place you RX somewhere, doesn't matter how or where.
then go back to your TX and rotate your TX until you get the best sporadic. Less sporadic is better
now go back to your RX and rotate it as well. vertically and horizontally. once you get that best .. back to your TX and tune it a little more.
If you can't get more then a couple hundred feet, I would suggest looking at the device itself. They are pretty efficient ... but since I hadn't look at the spec sheet to see the wave form and other good facts it is more or less trial and error.
You could also get a ground plane. A cookie sheet with an alligator clip on it attached to ground. Set this UNDER your transmitter / receiver. Theoretically again it should push the Wave up and out not DOWN.
Let's keep playing with them we will find the sweet spot ...