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Dear Hans, ??? Could you consider sending packages via a courier like DHL or TNT? It is true that there would be higher costs for buyers, but parcels would be fast and very important without loss.

Absolutely, Geoff ! 72 / 73, Bill, N4QA

Hi Chris, Several QCX 20m version builders, myself included,? found that the output filter capacitors C25 and C26 (390pF NPO ceramic) were quite lossy.? This may be due to a bad batch of capacitors

Well that proves that the LOW pass filter is doing its job then!!

Sounds easy as you only need to send data into the ?rx pin and send it to console at each newline.? Maybe do use a SoftwareSerial on another pin if rx port gets blocked by the usb console connection

Hello Kevin, what is exact your problem ? Maybe we have the same problem. I have here Arduino UNO and Arduino Mega. With UNO I cannot receive the NMEA strings correct, with Mega it works fine. -- 73

Hi Kevin You can't connect a QLG1 directly to the IC-9700 as the QLG1 is 5V TTL level and the radio is RS-232. You need to implement an level converter as the MAX232 or even easier pick up an ready

Kevin, And if you connect the IC9700 TXD you must be sure it sends TTL. If not some sort of conversion is required. A resistor/zener is the simplest way. 73 Alan G4ZFQ

Hi John See http://qrp-labs.com/faq#cal What are you using for the parameter "Cal {Time Step}"? 73 Hans G0UPL http://qrp-labs.com

[I know there is a recent thread on this topic, but I *think *I'm experiencing something different] Hi All! I'm new to the QCX and finished building my -20 a couple of weeks ago. Other than a bad

Hi Allison. As per my initial post on this topic, I will answer yes *and* yes to your first sentence above - Both the stock internal lpf and an external filter for 28 MHz are deployed. A single yes to

Is that with a 17M low pass at the output or something else? If the stock 17M filter is in place then its working so your loosing a lot? power to it likely 10-20db. FYI the output low pass filter has

Stock QCX-17 musters only 20 milliwatts output on 28001.7 kHz. Now, admittedly, that's not a whole bunch of output power...and it is only about 38 dB higher than the nearest 'noise', according to the

Thank you Krause, your English is better than some with English as a first language ;-) I have set the U3S up to do a calibration every few minutes, the oscillator must be stable because there is

Hi Dave Yes, it is and, yes, they are. Hmmm, you know, there's less than a 2x freq factor, going from 10m to 6m...wondering whether the new QSX could manage that... 72 / 73, Bill, N4QA

Bill, Is this the one you've been "abusing"??? Are all your finals still intact? I'm actually wondering what I should do with the LPF for the QCX-20 that is on order... regards, Dave N3AC wrote:

In his QCX manual, sections 7.6 & 7.7, Hans includes some very interesting info about transmitter & receiver sections' filtering, mostly featuring the xmtr lpf and the rcvr bpf circuits. Currently,

Kevin, I've no idea what you are doing, what is this IC9700? But COM ports connect RXD to TXD and TXD to RXD. Crossover. 73 Alan G4ZFQ

This post may help me with my problem. I have a IC-9700 and tried to hook up the QLG1 to it, and just like the original poster's description, the Icom did not see it. I will check out one of the

Looking for a sketch to verify the output of the QLG1 is working correctly. thanks, Kevin