RE: [Repeater-Builder] Unidentified Micor Part
At 5/11/2010 21:07, you wrote: For those who wonder how the TFD61x2 filter can impair the transmit signal at 2m, look at the attached plots. The TFD6102 filter is electrically identical to the TFD6112, and the TFD6101 filter is electrically identical to the TFD6111. Although there will be some variation between individual filters, it is quite obvious that a commercial-band filter severely attenuates a signal at 2m. So was this filter Motorola's way of dealing with the undesired harmonic subharmonic products from the exciter? Wondering why they felt they needed a BPF, not just a LPF. Bob NO6B
Re: [Repeater-Builder] Unidentified Micor Part
It's a harmonic filter, but I don't know enough to tell you what band. Chuck WB2EDV - Original Message - From: La Rue Communications To: Repeater-Builder@yahoogroups.com Sent: Tuesday, May 11, 2010 1:19 PM Subject: [Repeater-Builder] Unidentified Micor Part Need some help here. I have a Micor Part (I think) and the Motorola Code does not bring up anything at all on Google. From my guidelines, I know that this is a VHF Filter/Duplexer Part. The code is TFD6102APR. Pic is attached; One side has Input and Output on the opposide side to its respective receptacle if anyone knows what this doohickey is, I'd really appreciate knowing. :) Thanks! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn -- No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2867 - Release Date: 05/11/10 02:26:00
Re: [Repeater-Builder] Unidentified Micor Part
Thanks Chuck. I downloaded a little article by Mike Morris that breaks down the 3-Letter 4-Digit codes. According to that sheet, it SHOULD be a VHF 144-174 with the slight possibility of reaching down into the 130 range. :) John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn - Original Message - From: Chuck Kelsey To: Repeater-Builder@yahoogroups.com Sent: Tuesday, May 11, 2010 10:30 AM Subject: Re: [Repeater-Builder] Unidentified Micor Part It's a harmonic filter, but I don't know enough to tell you what band. Chuck WB2EDV - Original Message - From: La Rue Communications To: Repeater-Builder@yahoogroups.com Sent: Tuesday, May 11, 2010 1:19 PM Subject: [Repeater-Builder] Unidentified Micor Part Need some help here. I have a Micor Part (I think) and the Motorola Code does not bring up anything at all on Google. From my guidelines, I know that this is a VHF Filter/Duplexer Part. The code is TFD6102APR. Pic is attached; One side has Input and Output on the opposide side to its respective receptacle if anyone knows what this doohickey is, I'd really appreciate knowing. :) Thanks! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn No virus found in this incoming message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2867 - Release Date: 05/11/10 02:26:00
Re: [Repeater-Builder] Unidentified Micor Part
Looks like a VHF Micor Transmitter Low Pass Filter to me. On Tue, May 11, 2010 at 10:19 AM, La Rue Communications laruec...@gmail.com wrote: Need some help here. I have a Micor Part (I think) and the Motorola Code does not bring up anything at all on Google. From my guidelines, I know that this is a VHF Filter/Duplexer Part. The code is TFD6102APR. Pic is attached; One side has Input and Output on the opposide side to its respective receptacle if anyone knows what this doohickey is, I'd really appreciate knowing. :) Thanks! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202 http://tinyurl.com/2dtngmn
RE: [Repeater-Builder] Unidentified Micor Part
John, It is a VHF bandpass filter that is found in a Micor mobile or station radio. The TFD6102A filter is found in most commercial VHF radios, and has a bandpass of 150.8-174 MHz. The optional TFD6101A filter has a bandpass of 132-150.8 MHz. It is the TLD6102A filter that causes grief for those who want to move a commercial VHF Micor down to the 2m band. Kevin Custer describes this problem here: www.repeater-builder.com/micor/micorvhfbpf.html 73, Eric Lemmon WB6FLY -Original Message- From: Repeater-Builder@yahoogroups.com [mailto:repeater-buil...@yahoogroups.com] On Behalf Of La Rue Communications Sent: Tuesday, May 11, 2010 10:20 AM To: Repeater-Builder@yahoogroups.com Subject: [Repeater-Builder] Unidentified Micor Part Need some help here. I have a Micor Part (I think) and the Motorola Code does not bring up anything at all on Google. From my guidelines, I know that this is a VHF Filter/Duplexer Part. The code is TFD6102APR. Pic is attached; One side has Input and Output on the opposite side to its respective receptacle if anyone knows what this doohickey is, I'd really appreciate knowing. :) Thanks! John Hymes La Rue Communications 10 S. Aurora Street Stockton, CA 95202
