I have been bequeathed a TrueTime XL-DC, Model 151-601-1, serial number 1671 per a sticker on the side. On the back, on the right as one faces the back, is a small sticker that says "Down Conv. Req'd" Unsurprisingly, it has arrived without an antenna. If the original antenna still exists, it is on a building roof in Ft. Collins Colorado and is likely effectively lost. (I'm in Sunnyvale, CA) HalM was kind enough to come over the other day with some antennae which we tried without success. Since then I've done a bit of web searching and come across: http://www.prostudioconnection.com/Symmetricom-TrueTime-GPS-Antenna-140-615-Downconve-p/282092173717.htm It seems to be a part that was (also) included in a larger down/up conversion product, the 140-6150. I was wondering if the naive assumption that "TrueTime down conversion is TrueTime down conversion" and the sticker on the back of the DC-XL might mean the 140-615 antenna would work with the DC-XL? thanks muchly, rick jones intrigued member of the peanut gallery

On 08/04/2016 04:10 PM, Rick Jones wrote: > I have been bequeathed a TrueTime XL-DC, Model 151-601-1, serial number > 1671 per a sticker on the side. On the back, on the right as one faces > the back, is a small sticker that says "Down Conv. Req'd" > > Unsurprisingly, it has arrived without an antenna. If the original > antenna still exists, it is on a building roof in Ft. Collins Colorado > and is likely effectively lost. (I'm in Sunnyvale, CA) > > HalM was kind enough to come over the other day with some antennae which > we tried without success. Since then I've done a bit of web searching > and come across: > > http://www.prostudioconnection.com/Symmetricom-TrueTime-GPS-Antenna-140-615-Downconve-p/282092173717.htm > > > It seems to be a part that was (also) included in a larger down/up > conversion product, the 140-6150. I was wondering if the naive > assumption that "TrueTime down conversion is TrueTime down conversion" > and the sticker on the back of the DC-XL might mean the 140-615 antenna > would work with the DC-XL? In parallel I contacted the support folks at Microsemi via their website. They were kind enough to reply to let me know that the 142-615 will not work with the downconverted XL-DC model above. They suggested that perhaps a 142-603 or 142-610 would work so I'll cast about the web some more. happy benchmarking, rick jones