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Circulator, which is a passive element allowing the passing of RF signals only in one direction, is a key element in almost any RF circuit technology. An isolator is based on a circulator, having a

Friends, I need to retune the subject preselector and was wondering if there are any procedures someone could share or point me to.? I have a HP8320B and a HP8935 to do the work with, but I could

Hi everyone, I have a large, unable to be shipped, approximately 7 foot tall open rack with 19 inch rack rails that I'm thinking about selling. Would like something a little bit smaller and enclosed

* Circulators are used all the time in LMR...Combiners have them, I've used them on conventional systems where IMD was a problem...never called them isolators in my 50+ years of LMR.. A circulator

Circulators are used all the time in LMR...Combiners have them, I've used them on conventional systems where IMD was a problem...never called them isolators in my 50+ years of LMR.. Chris

Isolators are only used on the tx side. An isolator is generally a 3 port circulator where one port is terminated. In some systems, such as radar, a circulator can be used to allow a transmitter

One of the 6 meter repeater groups in SoCal has all of the hardware mods figured out for moving the CDM1250 low band up to 54 MHz with no degradation but they don't want it put out on the net for an

People have mentioned isolator and circulator any brand better than the other? If I remember correctly.? ?The isolator are used on the TX and RX side of the repeater ports to the duplexer? The

Robert How about $1,000.00 plus shipping? Regards, Charles F. Adams Industrial Communications Co. 121 N Sitgreaves Street Easton, PA 18042 Office 610-253-1214 Cell 610-360-0050 Fax

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3qqqqdqaa21 Charles Adams Industrial Communications Co. Mobile 610-360-0050 Office 610-253-1214 cadams@... ________________________________ Sent: Tuesday, March 11, 2025 9:17:03 AM To:

Pre 1992.. before I left Detroit, one Amateur placed a 440 repeater on the side of an FM tower.. Antenna wise, He installed a pair of 4 (maybe 8) bay stacked dipoles in cardiod pattern? opposite

<-- Thanks, Wayne.? Hope I can get my hands on one! - the AL1716W did not pan out.? (I did test the monitor with a desktop computer and confirmed that the monitor does work... and was able to get

Hi Can you please share the places of the configs ? Take care 73s ct2gnh - Paulo Lobo Don Wisdom KD7WKF via groups.io <dwisdom-lists@...> escreveu (quinta, 13/03/2025 à(s)

Sounds good. Whenever I get a chance, I'll get something typed up and send it to you. Might be a little bit, my kids have a lot of school activities and they're keeping me pretty busy at the moment. I

Repeater-builder does not have the region code mod for CDMs. If you will send it to me I'll post it. The CDM Notes page at Reepater-Builder has a couple of 200 MHz CDM to 222-225 MHz conversion

Ramesh the V196WL is plug and go

I've worked at several "high power" sites in the past. I would suggest that you bring a wattmeter and dummy load to the site. Connect the wattmeter with a dummy load to the antenna feedline and you

Very true.. I once had a repeater site that was free and had a PBX phone line available but the noise was horrible. The receiver on the bench was hearing 0.2 microvolts. At the site hooked to the

At 3/13/2025 02:32 PM, you wrote: Split antennas and a circulator would have fixed the problem.. Nope: my 440 system already had separate TX & RX antennas vertically separated 60'. Circulators on