Celwave duplexer tuning instructions

As Celwave's OEM Support Manager to Motorola in Schaumburg in the 1990's, I had occasion to observe the Celwave factory personnel tune these duplexers when I was at the Celwave factory in Phoenix. I then later myself tuned, trained & instructed Motorola factory personnel of the methods necessary to tune the 5042 duplexers, who after destroying Duplexers are designed for various application based on operational frequency and utility. As an example, mobile duplexers are designed to handle low power and are very compact in size. Base station duplexers are designed to handle higher base radio power and generally designed to be mountable in standard equipment racks. FD183005: FD904510: FD906005: Rx Frequency, MHz : 1710-1785: 880-915: 890-915: Tx Frequency, MHz : 1805-1880: 925-960: 935-960: Rx Insertion loss, dB : 0.5: 1.0: 0.5 Celwave duplexer kit fdn6003a 800 mhz this item was in our rental fleet.(posted on May 5th, 2017) Cat 316193 Rfs Celwave High (29.1% similar) I planned to drill out the copper pop-rivets that hold covers same as used on Celwave duplexers and cut down tuning rods move it up 900 mhz. Uses type lc connectors for high power. This is an unused • Field tuning instructions included • Optional mounting configurations available Features After five years of development, JAG RF is proud to introduce the JRT201-H144 BpBr VHF duplexer. The JAG RF model JRT201-H144 is built using refurbished Sinclair, Celwave, dB Products, and Telewave components. Together, employing JAGRF's proprietary Try calling Motorola Parts ID at 800-422-4210, and ask for the publication number that covers HFD8461A. 73, Eric Lemmon WB6FLY "Adam T. Cately" wrote: > > Looking for tuning instructions and/or information on a Celwave > model HFD8461A preselector-thingy-do-bob - any help would be appreciated. > Direct replies are encouraged. like poorly filtered rectified AC on a regular oscilloscope. The duplexer tuning instructions mention peaking the bandpas