Menu

Field Strength

Search this Thread

Prev

Previous Post

Next Post

Next

#19

Report Post

Old

December 14th 03, 01:59 PM

Active8

Posts: n/a

Default

On Sun, 14 Dec 2003 12:53:20 +0000,
said...
On Sat, 13 Dec 2003 23:59:21 GMT, Active8
,invalid wrote:

clues. so you're still on that project.

Well, it's *related* to "that" project, yes.

tweak the sensitivity and get a peak at S9 on the CB radio type signal
meter I'm using for this purpose.

! Adjust the meter to get the answer you want. Ok.

Yes! I'm only interested in *relative* field strength. That's why I
asked for a "ballpark figure" to be plucked from the air. I think you
may be thinking of some fancy type of instrument like some guy
mentioned he had that cost 1500 bux.

'twas me talking to someone else.

These ham-type jobs I'm
interested in cost just pennies to make as they don't need any
absolute standard of accuracy; only a relative indication. You tweak
the meter's sensitivity control to show antenna A of the TX giving
rise to say S5 on the meter. You then change to antenna B and see if
the reading is any higher or lower. It's really as simple as that.

Yup. gave you the eqs to figure out your ballpark figure. I figured
a ballpark figure might work if you gould figure out how much
voltage appeared at your RFSM antenna. had I known you had a
reference transmitter i might have suggested checking your RFSM
reading at one location with the ref and another closer location
with the test Tx, identical readings indicating sucess or close to
it.

I'll use a distance of 6m.

Noted, thanks.

Reply With Quote

Reply With Quote

Thread Tools	Search this Thread
Show Printable Version	Search this Thread: Advanced Search
Display Modes
Switch to Linear Mode Switch to Hybrid Mode Threaded Mode

Posting Rules
Smilies are On [IMG] code is On HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Current in loading coil, EZNEC - helix	Yuri Blanarovich	Antenna	334	November 9th 04 05:45 PM
Why doesn't maximum field strength and minimum SWR occur at the same frequency?	nathan	Antenna	17	November 21st 03 12:34 AM
Modifying Lafayette SWR & Field Strength meter?	Ken	Equipment	6	September 21st 03 07:33 PM
How was antenna formula for uV/Meter Derived?	Roy Lewallen	Antenna	21	July 31st 03 09:04 AM

All times are GMT +1. The time now is 04:50 AM.

About Us

"It's about Radio"

Contact Us RadioBanter forum home Privacy Statement

Copyright © 2017