Question. Can I transmit into the receive port of a duplexer? Answer. With a few exceptions most duplexers will permit transmitting into either port. Many units are . Duplexers are used to simultaneously transmit and receive from a single antenna . They are three-port devices comprising a combination of transmit and. A collection of duplexer specifications. A Guide to Duplexer Specifications version Celwave / Radio Frequency Systems (RFS).

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Please mail payment in company check, certified funds or money order to: We deal with such all the time. This capacitor had failed, causing the set set to be taken out of service. Where information on band splits is known, it is reflected in this guide.

Sign up for our auction bulletin now. Very often we deal with duplexers sent to the DuplexerRepair. Depending on whether or not we have some already made up and ready in our inventory, it might take us celwavf few days to custom fabricate the loops and ship them to you.

Bring or ship the whole set to DuplexerRepair. N8NOEFeb 5, Application is trying to reconnect. The same two tuning plungers after careful cleaning and polishing.

Used Yaesu 2 Meter Repeater & Celwave Duplexer

One of the two tower legs which literally bent and folder over, in a hinge-like fashion. It is truly a work in progress. W2GLDJan 30, Share This Page Your name or email address: After you receive the invoice, you will have five 5 business days to get your payment mailed to our office, or your account will be suspended, and the item will be awarded to the backup-bidder, or re-listed. Items left on seller’s premises after this removal deadline will revert back to possession of the seller, with no refund.

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Auctions International – Auction: Town of Unadilla ITEM: Celwave Duplexer

That has celwwave a seriously hazardous situation. But have no fear — they can be converted to a -B set and meet or exceed factory performance specifications.

Item sold as-is, where-is, with no warranty written or implied. Buyer responsible for inspecting the items before placing bids, and prompt item removal within ten xuplexer business days after receipt of invoice.

Anything other than that means the set definitely needs to be converted. W2GLDFeb 5, The celsave is a critical part of many repeater systems. Top guy, which had been pulled with enough force to pull the upper part of the tower over.

SOLD – RFS/Celwave PD UHF Duplexer | QRZ Forums

When searching the markets for a pre-owned unit, it is often difficult to determine the suitability of available units to a particular application.

Tuning Plunger Removal, Inspection, and Polishing After disassembly of the old cavities, one of the many steps in the overhaul and conversion process involves dupleser the tuning plungers back in good Aged, oxidized tuning plungers BEFORE cleaning and polishing. It is also bowing and leaning very badly.

Fri, December 28 – Mon, January And, if so, why? In addition, an SWR alarm LED turns on, which remains lit until a momentary contact button is pressed, resetting the alarm condition. Earlier this week, we had to go and duplecer a little forensic inspection of a tower which was severely damaged by an electric company bushhog operator who was cutting and clearing the right-of-way.

This duplexer is currently tuned for Screenshot of the online telemetry as it appeared during an intentionally created high SWR event transmission line disconnected. Note that we highly emphasize the soldering skills issue, here, because the precision trimmer capacitors used in these duplexers are extremely sensitive to heat — including too much heat during soldering.

This tower is only about 50 feet from the utility lines running parallel to the road. The guy wires are old and extremely rusted and six of the original nine guys have broken.


The client gets a complete report of the testing, including the network analyzer graphs showing proof of performance. So is the resulting performance and ability to be accurately tuned and for that tuning to xelwave stable. Register for a free QRZ account.

It duplexed quite common for us to discover signs of overheating from the combination of the original capacitor installation, soldering, and RF heating over time mistuning, high SWR, and lightning will destroy these capacitors pretty easily.

Seller is NOT responsible for providing tools or heavy equipment to aid in removal. The bottom line dupleder this: This The curving of the tower in this photo celwwve not camera distortion. Oh well, this item has clwave sold; that you to all who had inquired and moderators, please mark this listing as sold. Interested parties, please email me directly at: When we do the full loop assembly conversion job, we clearly mark the new designator on the underside of the flange, and typically label the outside of the enclosure as well with the conversion date and the new designation number.

This is actually a delicate process, as these capacitors do not tolerate excessive heat. All sales are final. The 4-cavity models are rated at 80 dB or more of branch isolation; whereas the 6-cavity sets are rated for dB or higher isolation. We will not be the least bit surprised to get a call at any moment letting us know the tower has completely failed. QE MHz Type: