I would suggest using Mastr II radios. They can be easily 'mixed and matched'. I would stay away from 2M. (Too much noise and congestion there in my opinion. I would instead use a UHF or High-Band radio converted to 220. Either way, you simply swap the one receiver with the other. You end up with a 10M transmitter coupled to a UHF receiver and a UHF transmitter coupled to the 10M receiver.
The correct way would be to use controllers on BOTH ends of the link. (This provides correct ID's) I have built some split sites with simply audio processing at the 10M receive end and a single controller at the other. Good quality audio is essential on the link path. I would suggest either a PLL type exciter for a 2M or 220 link TX. (Factory True FM) I have used with great success a PLL type ICOM cabled into a UHF multiplier type exciter. Doing this will allow true FM via the varactor modulator in the PLL ICOM. You need to bandwidth limit and filter the audio before applying it to the varactor though. I would suggest one of our AP-50 audio processors: http://www.repeater-builder.com/products/ap-50.html Here is an article that describes what I am talking about above: http://www.repeater-builder.com/ge/mastrII/ap-50-fm-mastr2.html At the 10M receive end, I would run discriminator audio into the processor and then straight on to the exciter. I would do your de-emphasis and such at the 10M TX (smart) end of the system. Since you are running full bandwidth audio, including any CTCSS tone, down the link, you can run a CTCSS tone decoder at the smart end that can be turned on and off by the controller. As with most things in life, there is more than one right way to do things. This is merely one of the ways. If you need someone to build the system for you, keep us in mind. http://www.repeater-builder.com/custombuilt/ Scott Scott Zimmerman Amateur Radio Call N3XCC 474 Barnett Road Boswell, PA 15531 ----- Original Message ----- From: Ed To: [email protected] Sent: Wednesday, December 27, 2006 9:21 AM Subject: [Repeater-Builder] 10 meter split site rpt, eqpt recommendations? Gentlemen With the recent licensing structure changes, 10m meters is going to be open to tech-minus ops like myself. Im kicking around ideas of a split site 10m FM rpt, with a 2 meter repeater as link / dual band core. I had a 6m rpt up back in 98-2001 that suffered from lack of use until a lightning bolt put it out of its misery. Seems more of the ops in our area have 25w 10m rigs or mobile HF rigs that have 10m FM capability then have 6 meter capability. The equipment availability, along with the longer distance the lower freqs offer makes this a project worth considering. Any suggestions of what kind of gear would be suitable for 10m repeater use? Any tips of do's and dont's for 10m? 73 Ed N3SDO ------------------------------------------------------------------------------ No virus found in this incoming message. Checked by AVG Free Edition. Version: 7.5.432 / Virus Database: 268.15.29/607 - Release Date: 12/28/2006 12:31 PM
