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100% agree Sarma. Almost any microphone will give satisfactory performance across the 300 - 2700 Hz passband used for SSB. Instead of spending huge dollars on high performance microphones, SSB

You might check on the New England qrp club site for their ?switched capacitor filter kit. It has good reviews and is about $35 I think

Ha, well, you indeed may be correct ..Since I didn't save my invoices, (maybe I didn't want to remember) and bought pieces and bits as they arrived I never kept track of exactly how much I spent ( SN

Jim, Your post made me curious. I have an early K2 that I bought and built in 1999. Looking at my invoice, and adjusting for inflation, the K2 is about $100 cheaper today (100 2018 US dollars).

This ...I measured 0.6 volts P-P on the junction or R102/R103 ...thats about 0 dbm ...Not enough for a 'level? 7 ' mixer? (more nearly a sine wave than a square wave? or kinda a sineish square

Your quote is Thomas Edison ??? Timothy E. Fidler : Engineer BE Mech(1) Auckland , NDT specialist AINDT UT /RT3 , MT2 CB #2885,? Telephone Whangarei?? 022? 691 8405 e: Engstr@...

Re 78 Fairchild Diode Data Book In the old days the manufacturers really went all out with their data books.? They wanted the designer to know exactly what he was buying and how to use the thing.?

Hey Glenn, So what were the results of adding the buffer stages?? Thanks Lyn -- *"You see, wire telegraph is a kind of a very, very long cat. You pull his tail in New York and his head is meowing in

When I finish with my homemade SA, I made a list of a few things I'm going to try. 1). Improve ground layout. I plan on taking a Dremel tool and cut a line across the ground copper flow between the PA

Hi Fabian, I really would like to help and I understand that you are not happy with the current uBITX situation. But without detailed information it’s not easy and also not much fun. I already asked

Howard, Yes, there are problems up front around the first and second IF's that create harmonics and spurs. Yes, replacing the 30mhz LPF with band specific filters could help with both spurs and

Especially it is intelligibility that we need in ssb amateur HF radios. Thanks for agreeing to my way of thinking, Michael Shreeve regards sarma vu3zmv wrote:

I didn’t see anything mentioned about this filter but I own the RTL-SDR Blog BCI filter. Filter Type: LC High Pass Filter 3 dB Cutoff: 2.5 – 2.6 MHz Attenuation: ~60dB Pass band I.L: Typically

Thankyou. I agree. The radio should be heard farther, it isn't a dancing appliance. -- Michael Shreeve N6GRG

Dynamic Mics are Great for music and performance. ?After all for speech communications limited to just 1.5? to 2.8KHz bandwidth, perhaps? any mic would suffice. we don't get FM quality or DRM

I've been sitting here on the sidelines for a while. I was hoping to have a complete solution finished by now. However, life gets in the way. I unexpectedly got 2 consulting jobs, plus my teaching job

Ed I am thinking the stock firmware is not a significant factor in CW operating.? I would suggest using a CW audio filter with the uBITX.? One candidate is the hypermite from 4stateQRP - there is at

If those issues were solved, I'm sorry I missed it.? I've seen others with the same issues.? In any case I'm glad you are going to give it a real shakedown on CW.? Please report the results of your

On Fri, Sep 21, 2018 at 02:58 PM, Jeff Omundson wrote: It is a little hard that parts become obsolete and so the projects might be difficult to build as is.? I have booth books and more even old

i have a uBitx that I want to use primarily for SOTA using a straight key and the stock 2-line display. Of all of the firmware options, which one should I?install for 2-line display and straight key