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Date
Re: Buy in INDIA
it is easier (and probably cheaper) to buy it abroad. there are extra taxes in india. - f wrote:
By Ashhar Farhan · #60683 ·
Re: Harmonics and Relay Replacement
Would be there at significant advantage to replace all the 5 relays, or is enough to replace only the three at the PA LPFs?
By iz oos · #60682 ·
Re: Simpler spur fix
Raj, what is wrong with the stock 30mhz LPF?
By iz oos · #60681 ·
Re: Emissions allowed In Band Segments
Indeed, 60m, 4m, 1.25m and 33cm are not allowed in many countries. Il 15/ott/2018 04:41, "Curt via Groups.Io" <wb8yyy@...> ha scritto:
By iz oos · #60680 ·
Re: BITX40 problem #radiuno #parts #bitx40help #bitx40
Good morning Brian yes the raduino is connected right, it's the first thing I looked at .. It has never worked! They replaced my motherboard but nothing changed! So only the raduino is left! Before
By SaMa photo SaMa photo · #60679 ·
Re: Simpler spur fix
It is exactly the same. S+M seems the brand. To replicate my board best to use these. Thanks for locating the source. Also buy some 331 for the 30MHz LPF filter.. 4 per board. Raj
By Raj vu2zap · #60678 ·
Re: Usb lsb invertiti R3
Hi, Sometimes the calibrations are off enough to reverse the USB and LSB settings. I assume they were initially set correctly, but somehow get changed. If you hunt around in the messages you will find
By Tom, wb6b · #60677 ·
Buy in INDIA
I am travelling to India soon and would like to pick. A coupe Bitx40's any idea where I might find any near Mumbai?
By Ben Johnson · #60676 ·
Re: Emissions allowed In Band Segments
Yes USA. Direct copy of FCC part 97 Para. 305. Mike K5ESS Sent: Sunday, October 14, 2018 9:42 PM To: [email protected] Subject: Re: [BITX20] Emissions allowed In Band Segments You didn't specify which
By K5ESS · #60675 ·
Re: Emissions allowed In Band Segments
You didn't specify which nation or itu region. This looks like maybe a USA list, no 4m band etc. These nuances do vary some around the world. Curt
By Curt · #60674 ·
Re: BITX40 problem #radiuno #parts #bitx40help #bitx40
Hi Sergio, Have you got the wiring of the Raduino to the Bitx40 main board correct? The brown wire from the Raduino connects to the black wire on the main board connector and the red wire from the
By Brian · #60673 ·
Re: Harmonics and Relay Replacement
Here are snapshots for 20 and 10 meters after the relays were replaced with the Axicom components. Sorry, I didn¡¯t capture the harmonics profile at 14.2 and 28.8 Mhz before the relay change but
By Ripley · #60672 ·
Harmonics and Relay Replacement / Spurs.. ect.., an offer/request to other VKs
HI All. I believe this radio needs a set of BPFs, GIGO.... Any VKs? Glenn, with a GOOD SA and abilities? I am willing and hoping that you will accept this offer. I will be doing the LPF board, 45mhz
By Nick VK4PP · #60671 ·
Re: Harmonics and Relay Replacement
Hello All, I installed the Axicom relays in my uBITX (ver 4) test bed this afternoon and ran tests 3.8, 7.2, and 14.2 Mhz. Here are the before and after snapshots. Yellow is SSB and magenta CW. Pic #1
By Ripley · #60670 ·
Re: Harmonics and Relay Replacement
Yea but changing the relays looks like the real winner here. Joe
By Joe Puma <kd2nfc@...> · #60669 ·
Re: Harmonics and Relay Replacement
Looking at pic #2 seems to me that adding a 47nF capacitor to ground at each coil terminal as Arv hypothesized would make the uBitx a leap close to be legal compliant with respect to the harmonics.
By iz oos · #60668 ·
Re: upgrade help
Merci Laurent! This was my first attempt at upgrading the UBITX with CEC code after hacking the 40 with Allard¡¯s so your comments are very helpful. I will go back and look at that code. Finally last
By Scott McDonald · #60667 ·
Re: upgrade help
Hello Scott, it seems we ran into the same troubles :) Well, after digging a little in the code, I found that the current release set by default another display that the default 1602: to get it run,
By laurent.bury@... · #60666 ·
Re: Harmonics and Relay Replacement
Here is the second shot inside the Axicom 403 that should have been in the previous post...
By Mike Doty · #60665 ·
Re: Harmonics and Relay Replacement
For those that are following this topic, last night I "dissected" one of the Axicom 403 relays and one of the HFD27 relays.? Here are the pictures of "what's under the hood".? One shot of the HFD27
By Mike Doty · #60664 ·