Hello all, it can be a silly question, but I'll try...
What do you think about "portable" antenna for MW? Of course with a tiny fraction of power irradiated (with a tx about 500 mW- 1W out) and 200-300 meters (at best) of rx radius...
With a car, is better a (very) short vertical antenna (1.5 - 2 meters) with a big inductor, or a magnetic loop with diameter circa 1 mt (and a lot of coil)?
I'm curious about your opinion..
Portable MW antenna?
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Portable MW antenna?
** AM is a choice of life **
** FM is only a choice of fashion **
** FM is only a choice of fashion **
Not feasible, can't bend the laws of physics.
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Sorry, did not read carefully and did not see what range you wanted. As a general rule of thumb you need a big antenna to have good range on MW band. A couple hundred meters might work with a smaller type. Antenna tuner might be usefull.
https://www.pcs.si/test/index.php?cPath=21&
With this balun you only need to add wire to make a half wave dipole.
http://www.pcs-electronics.com/test/pro ... cts_id=729
It covers well below 1.8MHz no problem.
https://www.pcs.si/test/index.php?cPath=21&
With this balun you only need to add wire to make a half wave dipole.
http://www.pcs-electronics.com/test/pro ... cts_id=729
It covers well below 1.8MHz no problem.
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Its usable under 1500 as well. We have what's there for now.
Best regards,
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
Marko - PCS Electronics
--------------------------------------------------------
Turn your PC into a FM radio station!
http://www.pcs-electronics.com
fax +386 4 2316 128
- Low Power Radio Guy
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Can't bend the laws of physics, but maybe squish them :-)
One approach to reducing the physical length of the antenna is to play with the electrical length through the use of tuned loading coils. There are losses, of course (damn physics!) but you might find a trade off you'll accept.
Commercial units from Carl the AM Antenna Guy: http://antenna18431.tripod.com/antenna.htm
and Texas Bugcatcher: http://www.texasbugcatcher.com/cata/tbcspec.htm
and some arguing about it here: http://part15.us/node/1583
and here: http://part15.us/node/876
and here: http://part15.us/node/1605
and here: http://part15.us/node/1535
More info on my blog: http://lowpowerradio.blogspot.com/2008/ ... tenna.html
Which has links to this site as well
Commercial units from Carl the AM Antenna Guy: http://antenna18431.tripod.com/antenna.htm
and Texas Bugcatcher: http://www.texasbugcatcher.com/cata/tbcspec.htm
and some arguing about it here: http://part15.us/node/1583
and here: http://part15.us/node/876
and here: http://part15.us/node/1605
and here: http://part15.us/node/1535
More info on my blog: http://lowpowerradio.blogspot.com/2008/ ... tenna.html
Which has links to this site as well