Tag: icom

RSGB Christmas cumulative contest

Today I operated alfresco with George M1GEO from our contest site at Kelvedon Hatch SNB. Operating as M0TAZ/P from Kelvedon Hatch SNB in JO01 we managed to operate 3 bands, 144, 70 and 50 MHz.

The contest was a RSGB Christmas Cumulative Contest and we entered as the Secret Nuclear Bunker contest group.

M0TAZ view SNB

Portable Equipment

144 MHz 9e portable tonna Gain: 13.1dBi free space

50 MHz a G0KSC designed 50/70 MHz beam Gain: 8.6dBi free space
70 Mhz a G0KSC designed 50/70 MHz beam Gain: 8.5dBi free space

The 50/70 MHz interlaced beam is interesting as it uses a single feed line, and respectable gain for a 2m boom length.

Racal 12m PU12 mast. Push up 12m mast

Mast head preamp 11 to 18 dB gain.

Power was provided by 110 Ah leisure battery

Radio Icom 7100 at 50w.

Masthead amplifier for 144 MHz provided by George M1GEO. The design was originally published in the RSGB magazine RADCOM plus  issue 1 designed by Ian White GM3SEK. The details are published on his website, detailed as the DG8 low cost, high performance preamp for 144 MHzDG8_144_mast_ampConditions seemed good to the North, allowing us to work some good DX. On 144 MHz our best DX included GM4JR in IO85 (368 km) , MI0SMK in IO64 (524 km) and GD8EXI in IO74 (429 km)

Maps showing the QSO enclosed.

144 MHz

144cc

70 MHz

70cc

50 MHz

50cc

 

Thanks to everyone we worked, from a rather chilly Kelvedon Hatch.

 

m1geo_m0taz

 

70 MHz from Bedsford Park

An afternoon in the sun looked like an ideal opportunity to work some station on 70 MHz. Bedsford park is the highest point around at the dizzy height of 100m ASL. I decided to take the 12m roach pole and Icom 7100 and the slim jim.

The portable trolly, battery and antenna.

21357384560_a979147db4_k

After setting up the radio, powered by a 90Ah leisure battery my first visitor was the local parks patrol. They have recently been kitted out with a look alike “emergency” response vehicle, complete with blue lights and checkerboard markings. We had the usual chat that started along the lines of “Have you asked permission” … (oh this isnt going so well.) I didn’t quite work out why I need to ask permission to sit in the park with a fishing pole and Icom radio, it seemed like the local dog walkers with their poop machines or the kids throwing sticks into the conker tree was just fine but thats another story. He was quite amicable once I told him I was a licensed amateur radio operator, either that or he was just confused by the term.

 

Sitting on the park bench

21357600008_0e239187d3_kAnyhow, after the passing of the parks police enforcement team. I got down to some operating, calling CQ on 70.450. It was great to hear so much activity, and I quickly worked 12 stations.

I managed to work.

M1COI – Henry- Belvedere

G3XFE – Chris – Eastbourne / Tunbridge wells

G8YNC – Peter – Alexandra Palace

G3VSJ – David – Hoddesdon

G4UAQ – Ian – Maidstone

The Slim Jim up 12m on the roach pole.

M0KSJ – Kevin – Chislehurst 21519234286_b96ad94059_k

G3VPS – Peter – East Grinstead

G3RQZ – Peter – J6 M25 Godstone

G8NDL – Ken – Swanley

G8KQA – Roger – East Sussex

G7CRQ – Adam Wallington.

 

 

 

 

 

A very enjoyable afternoon, thanks to everyone I worked 73 M0TAZ

 

Icom 7100 and WSPR 2.12

Option 1 Using WSJT-X

WSJT-X supports JT65, JT9, WSPR and JT4. This may provide better compatibility than WSPR v2.12 but essentially both can work. WSJT-X has the advantage of supporting multiple modes, and also you can set the radio control to “Ham Radio Deluxe” and let HRD provide the CAT control.

WSJT-X can be downloaded here, and provides native support for many newer radios.

Option 2 Using WSPR 2.12

I was looking on-line for resources on how to configure the Icom 7100 for use with WSPR  v2.12. The WSPR software can be downloaded free from K1JT website and runs under most version of Windows. I currently use Windows 8.1.

The problem is the Icom 7100 is not currently supported for CAT in this older software, and I was trying to get online with WSPR on 70 MHz in time for the sporadic E season.

I read online that various people had some success, but I was unable to find all of the setting on one page. After trying various options I can confirm its now working, so to assist others here is the configuration that worked for me, and I hope for you.

WSPR 2.12 Set up, firstly looking in the station parameters, set the following. You will need to select your correct COM port, and ensure CAT is ticked. Set the radio to Icom 7000 and data rate to 19200, data bits to 8, stop bits to 1. I setup the handshake to be “hardware”
Station setup

I also needed to make some changed to the radio, under SET, Connection, CIV I changed the radio address to CI-V to 70h, and checked the CI-V baud rate was 19200.

Icom setup

 

 

Using these setting I was able to connect to the radio, and PTT via CAT. This enabled me to run WSPR on 70 MHz. Good luck, hopefully this is helpful if you are trying to connect this fine radio to WSPR and hope to see you on the bands soon. 73 Dave M0TAZ.

 

© 2015 Dave, M0TAZ