G4FRE to G3VKV fixed station tests

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G4FRE
Posts: 197
Joined: Fri May 26, 2017 6:57 am

G4FRE to G3VKV fixed station tests

Post by G4FRE » Fri Mar 05, 2021 9:33 pm

Last Thursday night I had a 2 way fixed station real qso with G3VKV over a 26km path on 9cm

Both sets of antennas were indoors, pointing out of windows, both stations running around 5W

In the latter half of last year, G3VKV received me on all bands 144MHZ to 24GHz. We are now trying to complete 2 way qsos on all these bands. So far we have achieved 146, 437, 3402 and 10370MHz qsos The results are at my webpage http://g4fre.com/DATV_G3VKV.htm

Dave
G4FRE
Attachments
g3vkv_9cm.jpg
g3vkv_9cm.jpg (451.45 KiB) Viewed 4603 times
g4fre 3.4 at g3vkv.jpg
g4fre 3.4 at g3vkv.jpg (624.67 KiB) Viewed 4603 times
Last edited by G4FRE on Sat Apr 03, 2021 8:43 pm, edited 2 times in total.

radiogareth
Posts: 1215
Joined: Wed Jan 06, 2016 9:46 am

Re: G4FRE to G3VKV fixed station tests

Post by radiogareth » Sat Mar 06, 2021 8:55 am

I'd be interested to see/hear about the antennas you were using....
Gareth

G4FRE
Posts: 197
Joined: Fri May 26, 2017 6:57 am

Re: G4FRE to G3VKV fixed station tests

Post by G4FRE » Sat Mar 06, 2021 9:50 am

my power/antennas are on the page. Mine were all indoors!

i will update the G3VKV power/antennas when i have confirmation

The path is 30km long (IO81XV35 to IO82UC05)

Dave
G4FRE

G4FRE
Posts: 197
Joined: Fri May 26, 2017 6:57 am

Re: G4FRE to G3VKV fixed station tests

Post by G4FRE » Sat Mar 06, 2021 12:47 pm

All powers and antennas now updated

Dave
g4fre

G4FRE
Posts: 197
Joined: Fri May 26, 2017 6:57 am

G4FRE to G3VKV fixed station tests 6cms

Post by G4FRE » Wed Mar 24, 2021 6:42 pm

The 6cm path has now been completed at the second attempt after slight increase in antenna gain at both ends to overcome multipath issues

G4FRE used 5W + indoor 21dBi panel antenna+DB6NT Xverter+Portsdown/minituoner


G3VKV used 1,5W
g3vkv received at g4fre
g3vkv received at g4fre
vkv6cm.jpg (149.91 KiB) Viewed 4078 times
g4fre received at g3vkv showing indoor antenna used
g4fre received at g3vkv showing indoor antenna used
g4fre 6cms 2 way 2.jpg (613.79 KiB) Viewed 4078 times
next band 13cm
Last edited by G4FRE on Fri Apr 02, 2021 6:16 pm, edited 2 times in total.

Graham_J_G3VKV
Posts: 11
Joined: Sat Mar 20, 2021 8:41 am

Re: G4FRE to G3VKV fixed station tests

Post by Graham_J_G3VKV » Wed Mar 24, 2021 9:40 pm

Here is my end of the 5.7 setup - OBS + Pluto F5OEO + Avantek amp + Mitsubishi block amp on 146.5 feeding DB6NT transverter 1.5W - panel antenna
Minitiouner RX
Graham G3VKV

Graham_J_G3VKV
Posts: 11
Joined: Sat Mar 20, 2021 8:41 am

Re: G4FRE to G3VKV fixed station tests

Post by Graham_J_G3VKV » Thu Mar 25, 2021 9:35 am

G3VKV antenna 5.7 - picture lost on last posting - hope OK this time
Attachments
5.7 tvtr.jpg
5.7 tvtr.jpg (1.09 MiB) Viewed 4019 times

G4FRE
Posts: 197
Joined: Fri May 26, 2017 6:57 am

G4FRE to G3VKV fixed station tests 13cms

Post by G4FRE » Fri Apr 02, 2021 6:13 pm

Today we completed a QSO on 13cms. Easiest band so far, signals good enough for 4MS/s

vkv_13acm_4MHz.jpg
vkv_13acm_4MHz.jpg (149.9 KiB) Viewed 3920 times


G4FRE (10W to indoor 20db panel antenna) as received at G3VKV


g4fre_13cm 1_4MHz.jpg
g4fre_13cm 1_4MHz.jpg (788.19 KiB) Viewed 3920 times


G3VKV (12W to 40 ele Wimo antenna) as received at G4FRE


Biggest challenge was dealing with the local WiFi signals. Ended up with 20degree uptilt on the panel antenna to null them out!

G4FRE
Posts: 197
Joined: Fri May 26, 2017 6:57 am

G4FRE to G3VKV fixed station tests 23cms

Post by G4FRE » Sat Apr 03, 2021 8:42 pm

The last band to complete the sequence!
G3VKV at g4fre_23.jpg
G3VKV at g4fre_23.jpg (244.42 KiB) Viewed 3831 times

G3VKV (45W to 20 element Wimo Yagi) as received at G4FRE
g4fre at g3vkv_23_cm.jpg
g4fre at g3vkv_23_cm.jpg (699.61 KiB) Viewed 3831 times
G4FRE (8W to an 23 ele tonna on window ledge, you can just see the elements of the yagi outside the window) as received at G3VKV

Thats the completion of 2 way fixed location to fixed location DATV QSOs on 7 bands! The complete history of the qsos is recorded at http://g4fre.com/DATV_G3VKV.htm

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