Garreth,
Before you tear into them and start changing things inside try putting one on
the bench and retuning it to your 440 freq. with a SA and TG. you might be
surprised at the results when your dealing with harmonics of the original
factory tuned frequenct. If you get decent results on one can then tune the
remaining cans and connect then in the original configurations and check your
results. I don't have any experience with the EMR cans but some of the other
mfg's. cans are identical compont wise internally between 2 mtr. and 440. Also
you din't mention whether your cans were Pass, Notch or Pass/Notch type.
--
Doug
N3DAB/WPRX486/WPJL709
---- "Gareth Bennett (Ihug)" <[EMAIL PROTECTED]> wrote:
=============
Hello Group,
Does anybody have a UHF EMR Corp 7" cavity filter (6567 Series) that I could
ask some dimensioned from please? Such as coupling loop dimensions etc?
I have a heap of 850 MHz 3/4 Wavelength cavities that are surplus and am
keen to investigate modifying these to 440 MHz 1/4 Wavelength cans.
Any help would be appreciated
Gareth Bennett
(Technical Services)
Signals NZ Ltd
8 Manor Place
P.O. Box 1439
Dunedin 9015
New Zealand
Phone : 03 425-0895 (64 3 425-0895)
Fax : 03 474-5251 (64 3 474-5251)
Mobile : 027 458-8377 (64 27 458-8377)
Email : [EMAIL PROTECTED]
Web : www.signals.net.nz
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