Buongiorno Roberto qsl yr e-mail for all just coming from connect IS0GRB-4 on 40 m no problem at all 5either the band is qrm ) ere using eihter cd-live Fldigi 2.08 / PSK_ARQ 0.6 or also enable to run UBUNTU 8.10 but having problem of connect with last version of PSKmail station is : 40w icom IC706 hombe brew interface ( transfos - opto ) ant home brew vertical 10m high diam 5cm made of watering aluminium pipe 30 radials autotuning all HF range 1.8 - 30mHz with SG230 tuner see you soon on PSKmail fréquencies best regards wishes for 2009 and 73 gérard f5yd (retired radiomaritime) ----- Original Message ----- From: Roberto IS0GRB To: pskmail@xxxxxxxxxxxxx Sent: Monday, January 05, 2009 9:59 AM Subject: [pskmail] IS0GRB-4 new freq (40m 7035KHz pskfreq) Hi to all. I have updated the wiki with a new frequency of is0grb-4. The server now work on 40m 7035Khz (central pskfreq) (vfo 7036 lsb) (PSK250). Power output is about 80W, antenna is a collinear 2 element, polarization orizontal, 40m total length (10meters+10meters+20meters), direction north europe. Between the part of 10m and 20m there is a coaxial stub of 1/4 wave x 0.66 (rg-213), where in the end the central of the cable is solded with the ground. With the stub the 2 element are phased and we are the maximum irradiation of this antenna. it is possible to add others 1/2 collinear elements and increment the gain. With this 2 element the gain tested is about 4dB. |----------------dipole---------------------| -----------collinear part------------| 1/4 wave (40m) 1/4 wave (40m) 1/2 wave (40m) -------------------- | ----------------------- | ----------------------------------------- | | | coaxial stub 1/4 x 0.66 | cable of rg-213 to the radio 1/4 wave = 71 / 7.035 1/2 wave = 142 / 7.035 stub = 300 / 7.035 x 0.66 (for rg-213) Reports of reception are appreciated. Best 73 and happy 2009. Roberto IS0GRB