Ashhar, Sarma, Raj, other? Is it feasible to drive the uBitX PAs at 24V, or is that asking for trouble? Apologies if this has already been covered; please point me to the thread. Thanks, Craig w9ctw
|
How to use an SDR for an antenna analyzer:
And a noise source that's less expensive than the one in the article, and you won't need the splitter:
|
Re: Looking forward to a build
Well done on getting your licence!?
I started with the BITX40, it's an amazing bit of kit and was perfect for my budget. I like how well it's supported too and you can go very far adding to the bare bones kit.?
I've had that now for about 6 months or so and haven't tired with it tinkering. I have just ordered a uBITX and it looks as if postage is after the 25th now, I'm happy to wait though!
I'd say start with the single band board and there's no such thing as too many radios anyway!!
73, Alex
|
Mornin' Joel:
Well, I listened on 80M and things were jumping. I don't have an antenna for 80M so I can't attest to that, but you're going to love this radio. I got the rig as a Beta tester for Ashhar, but it did come DHL. I've never had a problem with them.
Jack, W8TEE
From: Joel Caulkins <caulktel@...>
To: [email protected]
Sent: Thursday, December 14, 2017 6:13 PM
Subject: Re: [BITX20] It's alive!
Hi Jack, have you tried 75/80 meters? I'm hoping it's sensitive there as I want to use it by my bedside at night. Also, you must have chose the DHL shipping option, In hindsight I wish I had done that, I have had so many bad experiences with DHL I just decided not to ship that way:-( Twice they have lost my packages in Germany.
Joel
N6ALT
|
I already have the parts to build one of K4EAA / W8TEE¡¯s dummy load and power-to-voltage converters, but this is tempting as an even lower-cost option. What do you all think? Grease and heat sink? Oil bath?
|
My guess:
Some people don't want it, and many will want to do different implementations.? If you search this forum for AGC you'll find lots of ideas for both RX and TX processing.
|
What was the reason, that AGC has been excluded from final "factory" version of uBITX?
There is enough room on PCB and cost of parts is marginal.
Roman Bal
|
Re: Connecting Kenwood KMC 30 to bitx /uBitx
#parts
Enjoy
Fiddler on the roof - If I were a rich man? ?
On Thu, Dec 14, 2017 at 4:48 PM, John McFadden <johnamcf@...> wrote: Lawrence, Fiddler on the Roof has a song for you about tradition. :-p
Plus the PTT switch and being able to switch radios easily.?
John
|
BITX40 - frequency spectrum - Raduino irradiation - intermodulation products -
#bitx40help
Hello everybody,
while checking the ouput-signal of my BITX40, I found some nastygram signals in the frequency spectrum.
Interestingly the emission is at the begining and at the end of 40 m Band nearly clean, respectively the distance to the wanted signal is > 40dBm? - but? abt. +/- 70 kHz around 7.100 kHz.
I replaced the DDS-Wire with RG-174 Coax but without results.
Do any of you have a solution ?
73, Frank
|
toggle quoted message
Show quoted text
On 15 Dec 2017 5:46 pm, "Jean-Matthieu F5RCT via Groups.Io" <= [email protected]> wrote: Hello All,
Changing the driver level of the outpus reduce the carrier to +8.5 dBm and spurs too !
The Pi attenuators on mixers should be reduced to 2.5 dB max (390R/12R/390R)
73 de F5RCT
|
Hello All, Changing the driver level of the outpus reduce the carrier to +8.5 dBm and spurs too ! The Pi attenuators on mixers should be reduced to 2.5 dB max (390R/12R/390R) 73 de F5RCT 
|
DuWayne, I'll be following your blog to see how it works out.?
I still need to build my sig generator from your? plans...
--
Dan Reynolds -- KB9JLO
<><
|
Re: Got Mine in TWO DAYS! - Case Fits!
Yes, that is the Banggood case.? I ordered four to use for a couple of projects.
|
Re: Holy fast delivery Batman!
How do you find out when/if it shipped?
|
I have not tried it on 80M, but might try that this weekend. If I do, I'll get back in touch with you.
It did come DHL, but I didn't order it. Ashhar sent me a Beta copy, I guess, and I'm writing a "first peek" review of it.
Jack, W8TEE
From: Joel Caulkins <caulktel@...>
To: [email protected]
Sent: Thursday, December 14, 2017 6:13 PM
Subject: Re: [BITX20] It's alive!
Hi Jack, have you tried 75/80 meters? I'm hoping it's sensitive there as I want to use it by my bedside at night. Also, you must have chose the DHL shipping option, In hindsight I wish I had done that, I have had so many bad experiences with DHL I just decided not to ship that way:-( Twice they have lost my packages in Germany.
Joel
N6ALT
|
Re: Got Mine in TWO DAYS! - Case Fits!
Hi Dennis
That's the EF01 Banggood type case, not so ? Good news if so ...I have one coming over
Paul ZS2OE
|
Re: Holy fast delivery Batman!
Mine arrived today too.? I haven't even thought about a case!
|
Re: Holy fast delivery Batman!
Hmnnnnn¡. I ordered mine on the 9th and its not here yet in California. Maybe tomorrow..,,
73¡¯²õ
WERNER G VAVKEN, WB6RAW Cell: 408-375-6165
toggle quoted message
Show quoted text
On Dec 14, 2017, at 2:37 PM, Dr Fred Hambrecht < w4jle@...> wrote:
Wow, ordered my uBITX on the 10th and it arrived today!? Board is 6" wide by 5 1/2 inches deep and based on the code was checked by the big man himself.
|
#ubitx How to interpret serial number
#ubitx
Question: How do I interpret the serial number on the ?BITX??
It appears that it has 3 segments: Alpha/Numeric/alpha ?( F / 142 / h ) ?
Craig
KM4YEC
|
Good point for me Bill. Not much heard here in suburban Melb with noise everywhere and no room for a decent receive antenna - other than the local am nets
Maybe a separate rig required for me but thought it worth asking as others may benefit more.
Regards
Simon VK3ELH
|
Craig Wadsworth
Arvo W0VRA
Jean-Matthieu F5RCT
Dan Reynolds
Craig Thibodeaux