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Date
Re: Ideas for homebrew rig for digital modes on VHF/UHF
Thank you for the replies. I understand that the current digital modes are used on either FM or SSB but I assumed this was largely because that's what most hams had available. Similar to how we ended
By FC · #63131 ·
Re: Ideas for homebrew rig for digital modes on VHF/UHF
FM on the uBITx. Interesting. Not a very popular mode on HF but a good exercise in design anyway. Ill draw something up as a theoretical challenge.
By MadRadioModder · #63130 ·
Re: Ideas for homebrew rig for digital modes on VHF/UHF
Hi, That won't give the OP the FM mode. But in the Olde Days, prior to 2017, there were many mods publish to add modes to receivers that didn't have them. Mods like a BFO. Mods for a product detector
By Bill Cromwell · #63129 ·
Re: Ideas for homebrew rig for digital modes on VHF/UHF
Ergo, buy a TenTec transverter... or copy one and you are done!
By MadRadioModder · #63128 ·
Re: S-Meter in KD8CEC v 1.1 with Nextion 2.8 does not work
hi, look at this. http://www.hamskey.com/2018/05/creating-simple-s-meter-sensor-for-ubitx.html
By Uwe , DF1UB · #63127 ·
Re: Ideas for homebrew rig for digital modes on VHF/UHF
There is not something else. There are digital modes that are transmitted in FM (dmr, c4fm, dstar, aprs, winlink stuff) and others in SSB (CW, wj, fsk, ft8). In my humble opinion it would be very
By iz oos · #63126 ·
Ideas for homebrew rig for digital modes on VHF/UHF
Hello, I'd like to experiment with digital modes on VHF/UHF and don't want any potential limitation from commercial transceivers that may be available to me. I have many questions on the topic, but to
By FC · #63125 ·
Re: Harmonics and Relay Replacement
?Evan, the design is a compromise that has deficiencies that were not originally well recognized. Thanks to some persistent work by some members (I forget all their names but one reallly worked hard
By Gordon Gibby <ggibby@...> · #63124 ·
Re: Harmonics and Relay Replacement
Hi Evan, In the United States it is not the manufacturers who are responsible for your compliance (amateur radio only). It is each licensee responsible for their own compliance. It's not the rule of
By Bill Cromwell · #63123 ·
Re: PSK31
Ed Well that sounds like ubitx is doing well. Possibly psk31 signals are too scarce. Do compare signals, both pattern and width to w1aw. I am guessing the may be a different modulation scheme. Some
By Curt · #63122 ·
PSK31
finished UBIXT build CeC v 1.08 firmware. Problem? FT8 works fine 25? contacts first try SSB works ok Psk 31 The only signal I can copy is W1AW bulletin copied at 100% All other signals I cannot
By edblakephoto@... · #63121 ·
Re: Harmonics and Relay Replacement
OK, I have been following all of the ubitx threads since September, and still do not know what I must do, definitively, to insure that my rig is compliant.? I thought that I had that from this
By Evan Hand · #63120 ·
Re: Harmonics and Relay Replacement
The relays are on the other side of the board? Bob ¡ª KK5R --------------------------------------------
By Bob Lunsford · #63119 ·
Re: Harmonics and Relay Replacement
Well, the work you guys are doing is incredible. In it¡¯s difficulty I mean. It was much easier just to add a daughter board with the right sided relays! Minutes.
By Gordon Gibby <ggibby@...> · #63118 ·
Re: Harmonics and Relay Replacement
Yes, the board placement and routing could be better. Design should be improved on v5. Allison has spent months poking at uBitx's, and making careful measurements. I have not. I am curious what she
By Jerry Gaffke · #63117 ·
Re: Harmonics and Relay Replacement
On Sat, Dec 29, 2018 at 01:21 PM, Bob Lunsford wrote: I had a sudden thought... It does happen. >>>Considering Allison's wrapping the relays to get some isolation, if the relays are somewhat
By ajparent1/kb1gmx · #63116 ·
S-Meter in KD8CEC v 1.1 with Nextion 2.8 does not work
Hi, My uBITx V4 with the Nextion 2.8" is running just fine except the S-Meter. I have attached a 5k potentiometer between GND and 5V and wired the middle contact to A7. Enabled the S-Meter Checkbox, I
By uwe@... · #63115 ·
Re: uBitx microphone wire up
Mike Most of us were puzzled somewhere in putting the fine ubitx into the nice enclosure kit. I am not sure why there are 2 places to plug in the mic. I used the 4 pin connector, and wired in an old
By Curt · #63114 ·
Re: uBitx microphone wire up
First off, the electret mic/PTT combination share the ground or common wire.? The uBitx PTT is activated by pulling the input line down to the ground or common voltage.? The microphone is connected
By Evan Hand · #63113 ·
Re: Harmonics and Relay Replacement
REF: OldEngineer: Go into the wiki or back postings and look at a sample board that had been stripped of the relays. Short and simple, its a mess. Adding your proposed while it may help a few DB but
By Bob Lunsford · #63112 ·