[time-nuts] Re: Lady Heather clock question
Hi Bill, I have no knowledge of the interfaces and functions. I am with you, the problem seem to be with the device from Lucent. I am running successful the original Trimble Tbolt I got from Tom,TvB, (thanks again Tom!) now since long years. I am happy so far with it, a good base as 10 MHz reference for all my measurement eqipment. On top I do recalibrate my PRS10 with the 1PPS output from time to time. Recently I made a new survey for the antenna position on top of my roof, essential for good results. Easy to be done thanks to the unbeatable tool from Mark Sims! I wish you good results, 73 Arnold, DK2WT Am 29.07.2021 um 14:20 schrieb B Riches via time-nuts: Hi Arnold, Loaded V5 on another PC. Did not load V6 yet. Lucent not connected. T and U change time correctly to utc. Connected Lucent - T and U would not change time. With V5 John sent a link to his working Tbolt. When first opened it has the error. T then U corrects the time. Looks like Lucent is the problem. Rebooted it and it made no difference. I have another lucent in the shop I will try. Strange. I thought that LH told Lucent to change time but now think LH does the heavy lifting from time code from Lucent since I can change tme from Johns tbolt. I am going to contact john and see if he has heard of lucent issues. Thanks for your ideas - what GPS are you using? On Wednesday, July 28, 2021, 11:44:45 PM EDT, Arnold Tibus wrote: Bill, that does sound a bit strange, for me it looks like the program does not work correct at all. When I change this way between GPS time and UTC LH does immediately switch the time these 18 secs and does continue working without a resetting comment. Did you install this version 6 (the last is v. 6.14 beta) as described? You have to have installed v 5 before and then to follow the instruction for the beta version to install on top. John, KE5FX, does provide this released v. 5 on his homepage. The readme for the settings is in general still valid. See http://www.ke5fx.com/heather/readme.htm I think in your case it will perhaps be a good idea to restart the full installation with v.5 and then proceeding as in the instruction to switch to the beta version. Mark Sims wrote:'This is just the .exe To use it you will need to have v5.0 installed and working (from ke5fx.com) and replace the v5.0 heather.exe file with this one (backup your old .exe first).' That should then work properly. I am running Win 10 pro 64 w/o any hazzle with LH 6.14. Good luck! 73 Arnold, DK2WT Am 29.07.2021 um 03:30 schrieb B Riches via time-nuts: Hi Arnold, I Tried that - hit t then u - clock program said resetting and will take a bid. Still did not work. Any other ideas? 73, Bill On Wednesday, July 28, 2021, 07:23:28 PM EDT, Arnold Tibus wrote: Bill, it is quite easy: When running LH type 'T', you will then see the list 'Reference' then hit 'U' for UTC-time. This should resolve the problem. I had the same effect before confusing on top left side is showing 'UTC ofs: 18' but this is only the information for the difference GPS/ UTC time I understand. But LH was still running with GPS-time setting. Hope this will help you. kind regards Arnold, DK2WT Am 29.07.2021 um 00:04 schrieb B Riches via time-nuts: How can a make my LH V6.1 clock show time equal to UTC time? It is 18 seconds fast = to 18 second offset. Set up: Windoze 10 simple con fig file = /3 /rx /tz=-4edst KS24361 - REF0 GPS UTC time in greenDate, Week, TOW in yellowDate 28 Jul 2021 ro Week 2160UTC ofs:18 in white When programming is running and I enter rxx/17 clock = UTC time but receiver has shut down. What am I doing wrong? Thanks for any help. 73, Bill, WA2DVUCape May, NJ ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to
[time-nuts] Re: Lady Heather clock question
Hi Arnold, Loaded V5 on another PC. Did not load V6 yet. Lucent not connected. T and U change time correctly to utc. Connected Lucent - T and U would not change time. With V5 John sent a link to his working Tbolt. When first opened it has the error. T then U corrects the time. Looks like Lucent is the problem. Rebooted it and it made no difference. I have another lucent in the shop I will try. Strange. I thought that LH told Lucent to change time but now think LH does the heavy lifting from time code from Lucent since I can change tme from Johns tbolt. I am going to contact john and see if he has heard of lucent issues. Thanks for your ideas - what GPS are you using? On Wednesday, July 28, 2021, 11:44:45 PM EDT, Arnold Tibus wrote: Bill, that does sound a bit strange, for me it looks like the program does not work correct at all. When I change this way between GPS time and UTC LH does immediately switch the time these 18 secs and does continue working without a resetting comment. Did you install this version 6 (the last is v. 6.14 beta) as described? You have to have installed v 5 before and then to follow the instruction for the beta version to install on top. John, KE5FX, does provide this released v. 5 on his homepage. The readme for the settings is in general still valid. See http://www.ke5fx.com/heather/readme.htm I think in your case it will perhaps be a good idea to restart the full installation with v.5 and then proceeding as in the instruction to switch to the beta version. Mark Sims wrote:'This is just the .exe To use it you will need to have v5.0 installed and working (from ke5fx.com) and replace the v5.0 heather.exe file with this one (backup your old .exe first).' That should then work properly. I am running Win 10 pro 64 w/o any hazzle with LH 6.14. Good luck! 73 Arnold, DK2WT Am 29.07.2021 um 03:30 schrieb B Riches via time-nuts: > Hi Arnold, > I Tried that - hit t then u - clock program said resetting and will take a > bid. Still did not work. Any other ideas? > 73, > Bill > On Wednesday, July 28, 2021, 07:23:28 PM EDT, Arnold Tibus > wrote: > > Bill, it is quite easy: > When running LH type 'T', > you will then see the list 'Reference' > then hit 'U' for UTC-time. > This should resolve the problem. > > I had the same effect before > confusing on top left side is > showing 'UTC ofs: 18' > but this is only the information > for the difference GPS/ UTC time I understand. > But LH was still running with GPS-time setting. > Hope this will help you. > > kind regards > > Arnold, DK2WT > > > Am 29.07.2021 um 00:04 schrieb B Riches via time-nuts: >> How can a make my LH V6.1 clock show time equal to UTC time? It is 18 >> seconds fast = to 18 second offset. >> Set up: >> Windoze 10 >> simple con fig file = /3 /rx /tz=-4edst >> KS24361 - REF0 GPS >> UTC time in greenDate, Week, TOW in yellowDate 28 Jul 2021 ro Week 2160UTC >> ofs:18 in white >> When programming is running and I enter rxx/17 clock = UTC time but receiver >> has shut down. >> What am I doing wrong? >> Thanks for any help. >> 73, >> Bill, WA2DVUCape May, NJ >> ___ >> time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an >> email to time-nuts-le...@lists.febo.com >> To unsubscribe, go to and follow the instructions there. >> > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an > email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an > email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there. ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: Antenna return loss
Andy, Good point, up to a point. But even if the antenna's amplifier itself has a good return loss, cheap cables like RG-174 are pure garbage and could be doing just about anything along their length. And if the bottom end connector is put on by a person without training and the correct tooling, very bad things can happen there, too. Complicating the situation is the mismatch likely to occur when one tries to power said antenna through a bias tee or whatever. Fortunately, if the right kind of splitter is used, such mismatches will occur in a "safe" location (downstream of the splitter). Nothing's ever simple ... Dana On Thu, Jul 29, 2021 at 3:42 AM Andy Talbot wrote: > Much talk about source return loss and splitters. > All active GPS antennas I've met have masses of gain at the top end, 40dB > or more. Most of the small puck ones come with several metres of RG174 > thin coax. > > This is so lossy at 1.6GHz that that several metres may have perhaps 10 - > 15dB loss. So there's your good source impedance for the splitter 20 - > 30dB RLoss without even considering the head amp itself. > > Even several metres of UR43 should have enough loss to constitute a decent > match. > > Andy > www.g4jnt.com > ___ > time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send > an email to time-nuts-le...@lists.febo.com > To unsubscribe, go to and follow the instructions there. > ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Antenna return loss
Much talk about source return loss and splitters. All active GPS antennas I've met have masses of gain at the top end, 40dB or more. Most of the small puck ones come with several metres of RG174 thin coax. This is so lossy at 1.6GHz that that several metres may have perhaps 10 - 15dB loss. So there's your good source impedance for the splitter 20 - 30dB RLoss without even considering the head amp itself. Even several metres of UR43 should have enough loss to constitute a decent match. Andy www.g4jnt.com ___ time-nuts mailing list -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.
[time-nuts] Re: Trimble GSPDO - ISSUE
Hi there, thank you for all the information. I'm using a bullet antenna (don't remember the maker), on top of my office. Cable has 50ohm impedance (ultraflex 7) and average quality N connectors. Patch from splitter to receiver is 50ohm as well, but still using RG58, will upgrade it asap. Update on my issue: Yesterday I made some testing, removing the splitter and nothing changed (apart the samsung complaining about signal loss :) ). I removed the trimble board from its case, I gave a look to it and powered up again: well... may be a kind of magic but it works. Now the status led is blinking fast and this is the output I get from commands: UCCM >STATus - UCCM Slot STATE- 1-1. #Now ACTIVE STATUS [Master Manual] 1-2. #Before ACTIVE STATUS - [OCXO Warm] 2-1. #Reference Clock Operation [Not Used] 2-2. #Current Reference Type --- [GPS] 2-3. #Current Select Reference - [GPS 1PPS] 2-4. #Current Reference Status - [Good Accuracy & Stable] #GPS STATUS --- [Available] #Priority Level --- [LINK > GPS] #ALARM STATUS #H/W FAIL [ LINK ] #OPERATION ALARM -- [Antenna] 3-1. #PLL STATUS --- [ENABLE] 3-2. #Current PLL MODE - [OFFSET OBSERVATION MODE] UCCM >SYSTem:STATus? --- 57964-15 serial number 86854165 firmware ver 3.0.0.11-01LINK mode --- Reference Status __ Reference Outputs ___ XX Ref 8KHz 0: [LOS] XX Ref 8KHz 1: [LOS] TFOM 3FFOM 1 XX Ref 8KHz 2: [LOS] UCCM A Status[ACTIVE] XX Ref 8KHz 3: [LOS] >> GPS: [phase:-4.8E-06, settling] ACQUISITION ...[GPS 1PPS Valid] Tracking: 10 ___ Not Tracking: 0 Time PRN El Az C/N PRN El AzGPS 07:35:47 29 Jul 2021 26 73 268 45 31 22 215 37 ANT DLY 0 ns 16 45 309 42 Position 10 11 170 38 MODE Hold 29 32 77 43 25 6 141 34 LAT N 43:35:11.808 18 79 73 45 LON E 13:31:1.216 5 18 45 39 HGT +228.84 m (MSL) 23 31 143 42 27 19 281 40 UCCM >posstatus - 07/29/2021 07:36:06 - Position: LAT(N 43:35:11.808) LON(E 13:31:1.216) H( +228.84 m MSL) - Geometry: PDOP(0.0) HDOP(0.0) VDOP(0.0) num of visible sats > 10 num of sats tracked > 10 Receiver Channel State CH 0 > SateID(26) TrackMode(pos avail) SigValue(46) CH 1 > SateID(31) TrackMode(pos avail) SigValue(36) CH 2 > SateID(16) TrackMode(pos avail) SigValue(42) CH 3 > SateID(10) TrackMode(pos avail) SigValue(37) CH 4 > SateID(29) TrackMode(pos avail) SigValue(42) CH 5 > SateID(25) TrackMode(pos avail) SigValue(36) CH 6 > SateID(18) TrackMode(pos avail) SigValue(45) CH 7 > SateID(05) TrackMode(pos avail) SigValue(40) CH 8 > SateID(23) TrackMode(pos avail) SigValue(43) CH 9 > SateID(27) TrackMode(pos avail) SigValue(38) CH 10 > SateID(00) TrackMode(tracking ) SigValue( 0) CH 11 > SateID(00) TrackMode(tracking ) SigValue( 0) - Rcvr Status(1): - Antenna Voltage: 5000.00mV , Antenna Current: 0.00mA UCCM >DIAGnostic:LOG:READ:ALL? Log status: 22 entries L00:21/07/28.06:00:47 Self survey started L01:21/07/28.06:05:30 Ref Change: GPS L02:21/07/28.06:09:10 Ref Change: No reference L03:21/07/28.06:09:25 Ref Change: GPS L04:21/07/28.06:09:54 Ref Change: No reference L05:21/07/28.06:10:07 Ref Change: GPS L06:21/07/28.06:32:45 Ref Change: No reference L07:21/07/28.06:33:07 Ref Change: GPS L08:21/07/28.06:34:42 Self survey completed L09:21/07/28.06:36:13 Ref Change: No reference L10:21/07/28.06:36:25 Ref Change: GPS L11:21/07/28.06:58:13 Ref Change: No reference L12:21/07/28.06:58:25 Ref Change: GPS L13:21/07/28.07:07:27 Ref Change: No reference L14:21/07/28.07:07:43 Ref Change: GPS L15:21/07/28.07:31:43 Ref Change: No reference L16:21/07/28.07:31:55 Ref Change: GPS L17:21/07/28.08:35:59 GPS Antenna open L18:21/07/28.08:36:01 Ref Change: No reference L19:21/07/28.08:36:30 Ref Change: GPS L20:21/07/28.12:13:02 Output mode: Active L21:21/07/28.12:13:02 A/S change: Slave(HIGH) So far, so good. PS: I don't belive in magic, so I guess that some glue I used to hold the board, added some capacitive side effects.
