Luke, probably the easiest to modify would be the Micor. Unless your T73RTN is already configured for the ham band, you may have to add a turn to each of the receiver helical resonators in order to achieve good sensitivity. You may also have to pad the transmitter. Each of these is fairly simple to do.
I recently swapped out a Micor modified for packet node use with one of the ten dollar T83VBJ units I had picked up at a swap meet. The Micor receiver channel element had lost drive and I didn't want to spend $$ for a new one. I did have an inexpensive eeprom programmer that I'd purchased off ebay so I decided to program the Syntor X. This portion of the project did turn out to be rocket science as it had been years since I last programmed anything. However we learned and at this point we have three Syntor X';s in use. Two as packet node radios and one as a general purpose 16 channel ham mobile. The mobile we picked up off ebay for under $40 delivered, complete with all accessories. This has the optional RX preamp and Hand Held Control Head. For a parts source, we recently picked up a T73VBJ unit off ebay for $9.99. As far as servicing either the Micor or the Syntor X, a manual is essential in either case. I've not yet found the components in the Syntor X to be more difficult to reach than in the Micor. The transmitter duty cycle of your repeater may be a concern. Some of the clubs in our area have lost finals in their Micors and they resorted to running blowers at all times. According to reports I've read, the Syntor X finals are more robust but they could be blown if needed. As for your use, it depends on whether you plan on installing the repeater(s) in a high density RF location or not. I donno if Motorola made a Syntor X repeater model but if not then probably the Micor would be a better choice in that situation. As for the Syntor X computer control, do a google search on syntor x. 73 de Jack - N7OO ----- Original Message ----- From: Luke To: [email protected] Sent: Wednesday, February 07, 2007 6:23 PM Subject: [Repeater-Builder] Re: Motorola repeaters Maybe this will help out a bit more, the Syntor X's model numbers are T83VBJ7204AK and the Micor's Model numbers are T73RTN1190B. I hope this might help you all help me in my decision in doing this. I want to have a repeater that has some power but is reliable and will not break my pocket but is also not going to require a rocket scientist, LOL. I also heard of making the Syntor X computer controled abd I was wondering if someone could help me learn more on this as well. Maybe you all can point me in the right direction on this so maybe I can set somemore repeaters where that are very needed. --- In [email protected], "Jack Taylor" <[EMAIL PROTECTED]> wrote: > > On the other hand Jim, the Syntor X's are a newer radio with less chance of component > failure. The 100 watt VHF drawer units can be picked up for $10.00 at swapmeets > and if you have an eeprom burner you can program them yourself for an investment > of $20.00 for the two radios. Even if you have a free Micor, the channel elements would > cost more than double that price. As far as I know, performance- wise, the two models > are equal except the Micor may require re-work of the front-end helical resonators to > move a high band receiver down into the 2 meter range. Also, a high band Micor > transmitter may require some padding to get it down as well. > > Luke didn't say whether he had base or mobiles of each type, or which frequency > range they were. These factors would affect his decision. Since he has the Syntor's > already and is considering more than one repeater the less expensive out would be > to go with them and make up one or two spares. > > 73 de Jack - N7OO > > ----- Original Message ----- > From: Jim B. > To: [email protected] > Sent: Wednesday, February 07, 2007 10:57 AM > Subject: Re: [Repeater-Builder] Motorola repeaters > > > Luke wrote: > > I have obtained several Motorola Syntor X's Radios and some Motorola > > Micor's and I want to set up a couple as 2 meter repeaters but I am not > > sure wich is the best to use for this operation. I have found small > > amounts of info on both but I want more power since I have some hills > > to deal with here. Thanks, Luke. > > The Micor's. Decidedly. The Syntor's will work just fine, but (1) you > need two of them to make a repeater, where the Micor is duplexable > in-cabinet, and (2) the Syntor's are more radio then you need for a > repeater, since they are programmable to 32 channels or so, where the > Micor is crystal controlled, and putting more then one or two channels > in them starts getting expensive quick. > Make the repeater out of a Micor, and program the Syntor's as user radios! > Check out Repeater-builder.com under Motorola. > > -- > Jim Barbour > WD8CHL > > > > > Reply (via web post) | Start a new topic > Messages | Files | Photos | Links | Members > > > > > Change settings via the Web (Yahoo! ID required) > Change settings via email: Switch delivery to Daily Digest | Switch format to Traditional > Visit Your Group | Yahoo! 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