[Repeater-Builder] Help in identifying
I have what I believe is a circulator/isolator that I would like to identify. It is big and heavy, meaning it measures 13W x 4 5/8H x 1 7/8D, and weighs about 15 lbs. The label says: Microwave Associates, a M/A Com company Serial: 1009 Model J-210 It has three ports, one marked INPUT another marked OUTPUT and a third on the bottom with the marking obliterated. Next to the unknown port are two other studs that look like solid ports with the center conductor soldered. The connectors are N type, which leads me to think its UHF maybe... Any way of knowing for sure? There was a paper label which has deteriorated over the years and is now nearly illegible. Looks like is says either 160 or 460 MHz, the rest is completely unreadable. I can provide photos upon request. Thanks, Mark - N9WYS
Re: [Repeater-Builder] Help in identifying
Mark Tomany wrote: I have what I believe is a circulator/isolator that I would like to identify. It is big and heavy, meaning it measures 13W x 4 5/8H x 1 7/8D, and weighs about 15 lbs. The label says: Microwave Associates, a M/A Com company Serial: 1009 Model J-210 It has three ports, one marked INPUT another marked OUTPUT and a third on the bottom with the marking obliterated. Next to the unknown port are two other studs that look like solid ports with the center conductor soldered. The connectors are N type, which leads me to think its UHF maybe... Any way of knowing for sure? There was a paper label which has deteriorated over the years and is now nearly illegible. Looks like is says either 160 or 460 MHz, the rest is completely unreadable. I can provide photos upon request. Thanks, Mark - N9WYS In 1978 Microwave Associates legally changed its name to M/A-COM, Inc. to reflect its involvement in the growing communications market. M/A-COM 1011 Pawtucket Blvd. Lowell, Massachusetts 01853 UNITED STATES Phone: 978-442-5000 Fax: 978-442-5350 For RF/Microwave Products, contact us at: Americas -- Phone: 1-800-366-2266 http://www.macom.com/psc/jsp/SearchParts.jsp - came up blank on the part number. Judging by the name still being Microwave Associates, you're going to have to find an old-timer to figure out what that thing is. Nate WY0X
Re: [Repeater-Builder] Help in identifying
If you decide you don't want/need it, I'd take it off your hands. Write me offlist if interested. Ken At 03:32 PM 11/28/2006, you wrote: I have what I believe is a circulator/isolator that I would like to identify. It is big and heavy, meaning it measures 13W x 4 5/8H x 1 7/8D, and weighs about 15 lbs. The label says: Microwave Associates, a M/A Com company Serial: 1009 Model J-210 It has three ports, one marked INPUT another marked OUTPUT and a third on the bottom with the marking obliterated. Next to the unknown port are two other studs that look like solid ports with the center conductor soldered. The connectors are N type, which leads me to think its UHF maybe... Any way of knowing for sure? There was a paper label which has deteriorated over the years and is now nearly illegible. Looks like is says either 160 or 460 MHz, the rest is completely unreadable. I can provide photos upon request. Thanks, Mark - N9WYS -- President and CTO - Arcom Communications Makers of the world famous RC210 Repeater Controller and accessories. http://www.ah6le.net/arcom/index.html Authorized Dealers for Kenwood and Telewave and we offer complete repeater packages! AH6LE/R - IRLP Node 3000 http://www.irlp.net
Re: [Repeater-Builder] Help in identifying
I work at a TV station that uses a Harris TV30L channel 4 TV transmitter. It has a circulator between the visual driver and PA. It is deeper that the one that you describe, but it uses type N fittings and is in the 70 MHz range. The connector indicates quality in this case. From the size, I would suspect 150-160 MHz range. Is there a way to retune these to a more useful frequency? 73 Glenn WB4UIV At 06:32 PM 11/28/06, you wrote: I have what I believe is a circulator/isolator that I would like to identify. It is big and heavy, meaning it measures 13W x 4 5/8H x 1 7/8D, and weighs about 15 lbs. The label says: Microwave Associates, a M/A Com company Serial: 1009 Model J-210 It has three ports, one marked INPUT another marked OUTPUT and a third on the bottom with the marking obliterated. Next to the unknown port are two other studs that look like solid ports with the center conductor soldered. The connectors are N type, which leads me to think its UHF maybe... Any way of knowing for sure? There was a paper label which has deteriorated over the years and is now nearly illegible. Looks like is says either 160 or 460 MHz, the rest is completely unreadable. I can provide photos upon request. Thanks, Mark - N9WYS Yahoo! Groups Links
