[Repeater-Builder] EMR Corp UHF cavity filters
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 Note: This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and any copies of it from your system, and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. LFT Group Ltd reserves the right to monitor ALL e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorised
Re: [Repeater-Builder] EMR Corp UHF cavity filters
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 Note: This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and any copies of it from your system, and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. LFT Group Ltd reserves the right to monitor ALL e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorised
RE: [Repeater-Builder] EMR Corp UHF cavity filters
We tried tuning some wacom 900 MHZ band pass cavities on 440 and found ours would not tune, the center tuning stub was too long I believe. Ours could be shortened easily I don't know about EMR stuff though. tom - Original Message - From: Gareth Bennett \(Ihug\) To: Repeater-Builder@yahoogroups.com Sent: 11/8/2008 3:08:48 AM Subject: [Repeater-Builder] EMR Corp UHF cavity filters 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 Note: This message is for the named person's use only. It may contain confidential, proprietary or legally privileged information. No confidentiality or privilege is waived or lost by any mistransmission. If you receive this message in error, please immediately delete it and any copies of it from your system, and notify the sender. You must not, directly or indirectly, use, disclose, distribute, print, or copy any part of this message if you are not the intended recipient. LFT Group Ltd reserves the right to monitor ALL e-mail communications through its networks. Any views expressed in this message are those of the individual sender, except where the message states otherwise and the sender is authorised
