You sent the whole receiver section? (Sounding like Bluto Blutarski in Aminal House ) Whatd that cost you, if I may ask??
_____ From: Repeater-Builder@yahoogroups.com On Behalf Of [EMAIL PROTECTED] It was just an idea - at 449.55, it should still have very good sensitivity, as if it was being tuned up in the 450-470 range. My MICOR UHF Receiver was pretty deaf until I sent it to ICM and had them make a crystal to replace the other one from the other company. LJ -----Original Message----- From: N9WYS Sent: Apr 25, 2007 5:23 PM To: Repeater-Builder@yahoogroups.com Subject: RE: [Repeater-Builder] Micor RX frequency ranges? Larry, The element was re-rocked/calibrated/compensated/etc by ICM This is why I was wondering if it might be worth the effort to do the cap change to the receiver board. Mark N9WYS _____ From: Repeater-Builder@yahoogroups.com On Behalf Of larryjspammenot Who did you order the crystal from? I had a Canadian company recrystal my KXN1024A UHF MICOR receiver channel element for a 447 MHz frequency, and the companion KXN1052 MICOR transmitter channel element for a 442 MHz frequency. I never could get real good sensitivity out of the receiver, and the transmitter would not deviate more than about 2 kHz. I then sent the elements to International Crystals, and had them make a new set of crystals for the same pair of frequencies. Then, the receiver tuned right up with excellent sensitivity, and the transmitter had lots of deviation (well over +/- 5 kHz, if I needed it.) They're still in use and working great. LJ -----Original Message----- From: N9WYS Well, I just read through the article at http://www.repeater <http://www.repeater-builder.com/rbtip/uhfsensitronRX.html> -builder.com/rbtip/uhfsensitronRX.html and it says that this mod is not necessary if the freq being received is above 445 MHz... My RX freq is 449.550, but I cant get the current receiver sensitivity to tune any better than .6µV for 12dB SINAD. I'm wondering if this mod will help even though the receiver is operating close to factory specs, or if I should just chuck this receiver board in the crapper in favor of a better one, or... Any ideas? Mark - N9WYS -----Original Message----- From: Repeater-Builder@ <mailto:Repeater-Builder%40yahoogroups.com> yahoogroups.com On Behalf Of Bob M. Actually Dave, N1OFJ, who peruses this group, modified his receiver to go down to 444.475 MHz, following info he got from Kevin W3KKC. I suspect that info is on the repeater-builder site in the Motorola/Micor area, but if not, Kevin was the original source. It's the crystal multipliers that need padding, and not by much, perhaps 3-9pf. Bob M. ======
