Tx bandwidth and out of band signals ,
Well after picking up the toys from around the cot and tidying up the baby
finally fell asleep ,silence finally ensued, a little familiarisation with
the way the radio works may help, just because the rx dial displays a
frequency out side the allocated band, doesn't actually mean the signal is
out side the band .. its all to do with filter shape factor and the
placement of the filter .... bit like dougle asking farther ted, are all the
cows in the field the same size as his little plastic toy one... no dougle,
this ones in your hand and those are far away , right ted came the quick
reply .from a still confused dougle .
--------------------------------------------------
From: "mal hamilton" <[email protected]>
Sent: Friday, January 02, 2009 7:54 PM
To: <[email protected]>
Subject: LF: Re: Low power olivia beacon 503 khz cent freq
OM
Your transmission is outside the band limit, spreading to 504.6 khz.
I can see why OFCOM are concerned about stricter control concerning data
mode bandwidth.
g3kev
----- Original Message -----
From: "Graham" <[email protected]>
To: <[email protected]>
Sent: Friday, January 02, 2009 6:30 PM
Subject: LF: Low power olivia beacon 503 khz cent freq
Olivia 1 khz x 32 tone
centre frequency 503 khz
tx mode usb
power 30 watts tune signal
Will send for next few hours
Reports welcome
Graham
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