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Date
Re: Designing Maritime Radio #bitx40
Hi Qonita, You're quite welcome, and Jerry covered your question very nicely in his reply. ? SSB is preferable for voice communications anyway: it's more efficient than AM (amplitude modulation)
By Chris Brewer · #43101 ·
Re: U1 fried
It appears at least a few folks have fried U1 by inserting a mono plug in the speaker jack and shorting out the audio. I¡¯d recommend only wiring up the tip connection and not the ring and then
By K5ESS · #43100 ·
Re: ubitx standoffs #parts
They are metric 3 mm. So you have to use 3mm bolts those for the supplied spacers. Most places have plastic spacers too.? Get 4-40 size ones.? Un-threaded 0.096" or 0.1" and you can use #4 sheet
By Michael Hagen · #43099 ·
Re: Speaker Jack
Are you talking about something like this? Would the Yellow wire signal act kind of like a line out at a constant level?? Does it need a cap to isolate the line from the device plugged into that
By Walter · #43098 ·
Re: Speaker Jack
I would also like to have a headphone jack and an internal speaker. How do I wire this? Bob
By Bob Bennett · #43097 ·
Re: Better Schematic
Outstanding.? I have them ordered thanks for the help ? -- 73, W9KJO Walter
By Walter · #43096 ·
Re: BITX40 carrier and low output
Clark Martin KK6ISP The instructions at <http://www.hfsignals.com/index.php/ubitx-tuneup/> make no mention of PA DRIVE. In fact this is the first time I¡¯ve seen any indication of how to adjust PA
By Clark Martin · #43095 ·
Re: BITX40 carrier and low output
Hi Allard, No, I had not tried that yet. I didn't connect this problem with a possible alignment issue. I will do that (hopefully this weekend and hopefully with help from my more technically-adept
By w2vu@... · #43094 ·
Re: ubitx standoffs #parts
The threads are M3 ¡Á 0.5.? The standoffs I have are 11 mm long with a 6 mm male threaded part.? Lots of kits on ebay.
By Arvo W0VRA · #43093 ·
uB Shipped!!
Dec 27 orderedFeb 24 PayPal Shipping AlertFeb 27 DHL delivery.... signature required Board number 084-3 LeeN8LJ
By Lee Dziekan · #43092 ·
Re: Designing Maritime Radio #bitx40
There's a band-pass filter at L1, L2, L3, it is used during both transmit and receive. You require a fairly broad passband,? but I suspect it will work fine across your 500khz. As designed, it has
By Jerry Gaffke · #43091 ·
Re: uB Shipped!!
Will do! Stop by 3930 some afternoon. We rag chew from about 2pm till the net starts at 5. Looks like I'll be running the net on Tuesdays. Vince. -- Michigan VHF Corp.
By Vince Vielhaber <vev@...> · #43090 ·
ubitx standoffs #parts
This Group is mighty nice.? I have enjoyed it tremendously for a while now and have learned from others here.? I have a question now.? I have installed my xbitx in an old junked Repeater Case, no
By R S · #43089 ·
Re: Another shipping Notification Update
Check paypal in case you just didn't get the notice. Vince. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/ http://www.metalworkingfun.com
By Vince Vielhaber <vev@...> · #43088 ·
Re: uB Shipped!!
What was your order date? Lovely, DHL's tracking is down. Vince. -- Michigan VHF Corp. http://www.nobucks.net/ http://www.CDupe.com/
By Vince Vielhaber <vev@...> · #43087 ·
Re: UBitx no audio! Could use some advise
Remove PA-PWR from the rig so the IRF510's won't be working, then try sending CW. Does the sidetone come through the speaker?? If not, you have a very simple? path from CW-TONE to the speaker to
By Jerry Gaffke · #43086 ·
Re: Results of MAX9814 in uBitx #ubitx
John, Good job! tim ab0wr "John" <passionfruit88@...> wrote:
By Tim Gorman · #43085 ·
Re: uB Shipped!!
I got payment confirmation on January 4 and still waiting for my second one to be shipped.
By Michael Baker · #43084 ·
Re: Designing Maritime Radio #bitx40
Thank you for your reply.. There is no requirement for the modulation itself, I think SSB is good enough and suitable for my project. Did one RF-Front End circuit work for both transmit and receive
By qonita.salimah@... · #43083 ·
Re: ergonomic design of front panel
Michael, I like your layout. I am considering putting the on/off switch on the back as well in order to keep it close to the power connector. I have a bit larger case than yours. I have a four pin
By Tim Gorman · #43082 ·