Thanks, Robin. I'm sure that there are plenty of XP machines still about running programs that cannot be used on later versions of Windows. I have two here to run Virtual Basic 6 for my programming bu

It's just download from that web page. I downloaded it on a Linux machine and transferred it by clean USB stick to the XP machines. Regards, Chris

All antennas interact with the ground due to ground reflection. The resulting radiation pattern depends upon many factors such as antenna height above ground, ground type, ground slope and surrounding

It certainly shouldn't be generating that level of spurs. The usual level is four very low level spurs 1 and 2 kHz either side of the DC spur but at such a low level that background noise overrides th

Cross Country Wireless is the name of the company. APRS Messenger is the name of the program written for HF APRS over PSK, GMSK and MFSK modes. The usual frequency is 10.1497 MHz, that is using a SSB

Pat, If you are talking about APRS Messenger it's always best to download it from the CCW web page: http://www.crosscountrywireless.net/aprs_messenger.htm The latest version will be posted there. Some

Hi Manfred, I'm rather surprised to see the high level of drift on your SDR-4+ receiver. I regularly use one for JT-65 and JT-9 reception on all bands including 6m. The Sentry 5 SDR transceiver protot

Hi Manfred, During manufacture we calibrate the Si570 oscillator in the receiver against our off-air frequency standard and use the CFGSR tool to save the calibration setting in the ATTiny 85 IC insid

Manfred, I'll email you with the details on shipping your receiver back to us. Regards, Chris

Jim, That sounds like the SDR program isn't communicating the frequency change with the USB driver. Can you give me more details so that I can replicate the problem please? SDR program and operating s

That sounds like a fault within the Multicoupler. I'll ship a replacement unit out to you. I would welcome it if you can send back the original when you can so that I can analyze the fault. Regards, C

Manfred, Thanks for sending back the receiver. The fault was with a decoupling capacitor on the 3.3V supply to the Si570 oscillator. This would allow RF to get into the regulator IC which caused the f

Microsoft have just released new security updates for all operating systems. Of interest to those running older systems is that they have released patches for XP and Vista for the leaked NSA tools to

After a break of a few years we have revived our Facebook page. I'll be putting some posts on there over the next few days with some unusual bits of information about our products. The Facebook page c

Mike, It was shipped back on 30th June, tracking number RN288289996GB. Regards, Chris

Cross Country Wireless have released a Mains Filter. This filter is designed to remove noise and interference on the incoming mains feed to radio equipment or high quality audio equipment. The filter

I've just been playing with FT8 on 30m and using PSK Reporter I can see my signals have been decoded in the eastern US. I'm beaconing on the 30m HF PSK APRS channel using MFSK-16 with a short beacon e

Set the dial frequency to 10.1476 MHz on USB and the tone frequency in the software to 2.1 kHz. 10147.6 + 2.1 = 10149.7 kHz. I'm beaconing so with any luck you may see the trace on the waterfall once

I can see some faint signals on the waterfall but the background noise here on 30m is too high to decode it. Regards, Chris, G4HYG-63

Hi John, Ship it back to us and I'll check it out. Regards, Chris