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G0TEZ > HDTV 16.10.11 01:02l 23 Lines 674 Bytes #999 (0) @ WW
BID : D10055G0TEZ
Read: GUEST
Subj: Re: KB2VXA, slot aerials etc.
Path: IZ3LSV<IK2XDE<DB0RES<ON0AR<GB7CIP
Sent: 111015/1914Z @:GB7CIP.#32.GBR.EU #:15098 [Caterham] $:D10055G0TEZ
From: G0TEZ@GB7CIP.#32.GBR.EU
To : HDTV@WW
In the UK slot aerials are used by the police at about 1GHz and by TV
transmitters who want to send mixed polarisation from a high, narrow
tower.
My nearby TV repeater Tx has some beams (vert) for local coverage and
aimed at the main Tx a tube with vertical slots, allowing horizontally
polarised reception.These are cut for high VHF and UHF band 4 it has been
there since the late 60s.
As for change of power with frequency, I suggest you type Clerk Maxwell
into your browser. It is far to long to put into a bull:
73 - Ian, G0TEZ @ GB7CIP
Message timed: 20:14 on 2011-Oct-15 BST
Message sent using WinPack-Telnet V6.80
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