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Tiny GNSS Clock for the Field
5
Since RTCs aren't, and since many want to use their sBITX/zBITX in the field doing things that need accurate time, consider the 'guy with the Swiss accent'. https://youtu.be/BGb2t5FT-zw?si=uGZorbISNZTtpwk_ Andreas' project this week is a TINY GPS/ESP32 combo capable of sub-second accuracy via both WIFI and Ethernet. 73, Andy
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I just joined this group.
I ordered a zbitx a couple of weeks ago and I'm looking forward to using it.
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Today I made a conversion of the original handheld microphone purchased with sbitx, similar to the 'Meeting MIC', which I documented in the attached file. If I missed something, please feel free to ask, I will answer when I can. -- Gyula HA3HZ
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Sbitx - antenna switch - swr/power coupler - antenna Previously radio showed power and 1.0 swr on 15, 20, and 40 meters with similar readings on the off board meter. As of this morning swr on the radio and the off board meter show high SFR 2 to 3:1. Removed the radio from the antenna line and replaced it with an antenna analyzer, it shows a perfect 1:1. Another radio shows 1:1 on the radio and the off board meter. Previously, maybe a month ago I had the same problem, spent time chasing down the antenna to no avail. Then one day all was well with no intervention at or in the radio. All bands that were workable for the antenna show the same behavior today. Trouble shooting help welcomed. Tim
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Displaying/setting the network connection in SET screen on zBitx
7
When using zBitx outdoor, I use my mobile phone as a time source. Additionally I would like to use my mobile to control zBitx via web interface. Unfortunately, my smartphone does not report IP addresses of the connected devices. In case of sBitx, I can find it's IP and connect to it from the smartphone. It would be nice if zBitx could report its IP as well. Another issue is the fact that connecting to the new network requires HDMI connection. I was in a hotel, where the TV didn't offer HDMI connectivity. Thence, I couldn't connect my zBitx to the local network. Adding a possibility to set WiFi SSID and pasword in the SET screen would be a good solution. 73, Wojtek SP5DAA
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No Receive
2
Bought a Zbitx in Dayton es no receive, Hook a long wire to it es there is no change in signal or noise. Guess it's back to the booth to have a visit with Ashhar in the morning
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No FT8 bandwidth, can't make FT8 contacts
6
Been unable to make any FT8 contacts, I discovered that if I look at the received waterfall on a separate receiver the transmission begins with a normal looking bandwidth for a few seconds then drops out and looks like just a carrier, I hear the audio tones on the zBITX when transmitting, any ideas?
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I just received my zBitx, and have read the manual as well as been following this group for the past couple months. I hope to use this rig primarily on CW and perhaps a little FT8. I am aware of some serious CW issues having been noted on this group. What is the current state of usability in CW? Is there a best firmware to be using? I prefer to use an external paddle with the internal keyer and sidetone, but will a straight key or keyboard CW be better for now? Or do I just need to wait for a fix? I will power the rig with 18650 cells in the attached holder. What is the best way to turn off the rig? Remove the cells? I know that can corrupt SD cards¡ 73, Steve AK0M
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FOR SALE: zBITX
5
Going to wait for the SBITX V4. Barely used for SWL plus 4 batteries and a 2-cell charger. $230 shipped within USA.
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Hi all, from what I've understood about the timing issues with CW on zbitx, it seems that the CPU load is at least part of the problem. I personally would love an option to switch off the waterfall (either in menu or set options), because I only need it when searching for signals, but not when I have found one. Apart from that, I wonder why the binary is compiled with debug symbols and no optimization at all. I exchanged the "gcc -g" with a "gcc -O3" in the build script, and the CPU load decreased from 60-70% to 45-55% running FT8, so there is quite some optimization that can be done. Interestingly the CPU load is quite higher on CW, which is 65-70% optimized and 75-80% original (unoptimized). I guess this might be due to polling the key's GPIOs instead of handling them via interrupt (which would make the code more difficult of course). Is there a reason why the build script is not using optimization? (for development side "-g" is perfectly understandable, but for "production" side?) Maybe compiler optimization could at least contribute to the puzzle pieces for optimizing CW response. vy73, Peter DL4PIT
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Z bitx poor sensitivity
10
Hi all, I received my Zbitx a little over a week ago and have not had time to really try it out. I have noticed it seems to be very insensitive to any signals. When I switch over to my ft 817 signals are strong then immediately back to my zbitx they are either not heard or barely audible. I have varied the if control between 0 and 100 mans have gone the age options to no avail Any help would be greatly appreciated. Thank you -Sean de g0uvm
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Any particular recommendations for a base station power supply for the zBitx? I like to shop Amazon. Thanks ! Jim WB4ILP
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Order # 3869 April 2
27
HF Signals : Order Tracker Your Order #3869 Current status : Awaiting processing -------- Wish others would post order #'s if they really mean anything.
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You don't hear it from me
2
Hi QRP Labs Hans G0UPL won a zBITx from Farhan yesterday at FDIM :) :) :) It was a random giveaway, random number generator picked Hans's number :) :) :) 73 muhsin TA1MHS
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Order is ready
My zBitx has been listed as packed and ready to go. My number is 3926. Just waiting for tracking info. Thank you Jim KE0VVU
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Hello Team, Can anyone explain and assist as to why there is a defecit on FT8, a 25Khz drift between RX & TX frequency If I set my RX to 14.059 on 20M and then track on PSKreporter I can track everything going out, but there is nothing on the RX because I assume it is totally wrong. If I set my RX to 14.074 I can hear all the traffic, but nobody can hear me :-( I have found 1 site in Romania that reports me on 14.101~ so out of band. Is it something obvious that I have done wrong ? I have tried with and without my ATU-10-0A and it makes no difference. I have had similar offset issues with 10M & 15M respectively. Just looking for a little guidance. I'm very happy getting ~2500KM at 2W on a VSWR of ~1.0 - 1.1 But the config needs a little tweak me thinks! Many thanks for any help. 73, Jonn, G8DVB
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Hello to the group -- The yellow spectral display just above the waterfall has disappeared. I think the waterfall is acting a bit strange too, but that might just be noise. I have tried to adjust the IF but it does nothing to bring the spectral display back. Suggestions on how to fix this would be appreciated. Thanks -- Rick W7RNB
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zBitx log timestamps
I have a problem with the timestamps of the zBitx logbook. They are 8 hours ahead of UTC. And yes, I changed the country and timezone. The web interface shows the correct UTC and local time but still log times are 8 hours ahead. Suggestions anyone? 73 Frank PA3CNO
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Availability?
9
Is there any estimate on when the sBitx v4 and the zBitx will be available for purchase?
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Image Name
Sat 8:39am
Sat 8:39am