[50mhz] Cushcraft/m2 Antennas
[email protected]
[email protected]
Sun, 18 Aug 2002 09:12:36 -0500
I heave heard the saying about Cushcraft yagis "radiate poorly" and
their verticals "radiate poorly in all directions"!!!Also they have
the nickname Crunchcraft! :) Yes I have used them and still do in
some respects...but there are better antennas out there....
Any antenna that does not list Dbi or Dbd as the gain factor can be
comparing it to a piece of spaghetti!!!! Dbi will be 2.15db higher
than Dbd....so remember that in looking at gain figures...if it says
20+db gain, ask "db gain compared to WHAT"??????
Chris
WB5ITT
Stanley Wernick wrote:
>
> George: Many antenna specs listed in catalongs might be misleading
> because they give gain figures in dBi which is dB gain over an isotropic
> source in free space which is an ideal theoretical antenna not
> influenced by surrounding objects or earth. There are those who believe
> in being realistic and they list gain in dBd which means dB gain over
> a half wave dipole. If the figure says dBi it will be higher than the
> realistic gain in dBd, so if the M2 antenna lists gain at 10.5 dBd
> thren you have a winner, which is the antenna that would be better.
> Hope that makes sense.
> 73's de Stan W5ZF DM65
> Albuquerque, NM
> Good opening last night to Mexico DL44 but too short. Only worked
> XE2HWB.