FRENCH INCREASE THEIR WORLD 47GHz RECORD ONCE MORE
F6BVA and F5CAU have done it again, just a couple of months after their October 1998 world record 47GHz contact. Gil's email says it all....From: f5cau [f5cau@wanadoo.fr] Sent: 31 December 1998 06:20 Subject: some good DX news
F6BVA and F5CAU have established a new world record on 47GHz with a two way SSB qso (report 52 both sides with QSB) over a distance of 286 km on December 26th 1998 at 15:40 local time.
F6BVA was situated at the "tour de Batere" JN12GM,
1400 m asl, temp around 5°C
and F5CAU at "Mt Ventoux" JN24PD 1500m asl, temp
3°C. The weather was sunny.
On the same day, from the same locations, they also made a full two-way ATV QSO on 24 GHz with reports of B5, slow and deep QSB.
On December 27th, F6BVA moved to the "col d'Ares" in JN12FI, F5CAU stayed at "Mont Ventoux" JN24PD, that is a distance of 303 km, they made again the 24 GHz ATV QSO with same successful results than the day before. This could be the world ATV 24GHz record .
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WORLD 47GHz RECORD SHATTERED YET AGAIN!
221 KILOMETRES ON 47GHz..
This email, received from F5CAU says it all! CONGRATULATIONS TO ALL CONCERNED...From: Gil FERAUD [f5cau@wanadoo.fr] Sent: 05 October 1998 To: g3pho@geocities.com
F6BVA and F5CAU have established a new world record on 47GHz with a two way SSB qso (report 53 both sides with a light QSB) over a distance of 221 km on October 3rd 1998 at 18 :04 GMT.
F6BVA was situated at the top of Mt Chiran JN33DU, 1900 m asl, temp around 0°C and F5CAU at the top of Mt Aigoual JN14SC 1560m asl, temp 4°C, the weather was foggy and wet.
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AUSTRALIANS SET YET ANOTHER NEW NATIONAL 24GHz RECORD..... September 1998
From: Walter Howse [howse@cleo.murdoch.edu.au] Sent: 24 September 1998On 13 September 1998, Neil Sandford VK2EI/p at North Brother (a mountain 487m asl - south of Port Macquarie NSW, Neil's new QTH) worked Walter Howse VK6KZ/p at Sealy's Lookout 310m asl (north of Coffs Harbour NSW) worked each other on 24 GHz ssb with VK2EI receiving a 53 report and VK6KZ a 4-5/3 report.
The distance involved was 157 Km - exceeding the current record of 142 Km. The equipment of each station was unchanged from earlier contacts in Western Australia. Conditions were nothing special with temperature and humidity being 24 degrees and 57% at VK6KZ and 18 degrees and 93% at VK2EI.
An unusual aspect of the contact was that to reach my portable location involved me driving 11501 Km. The direct return journey to my home QTH was 5175 Km. (Maybe those distances are a new record also for 2 QSOs - an earlier one of 81 Km was made that day).
(Webmaster's comments: Many congratulations to all involved... it's good to see the microwave flag being flow Down Under!)
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JAPANESE TAKE 24GHz WORLD RECORD AWAY FROM EUROPE!
From: Toshihiko Takamizawa [toshi@kw.netlaputa.ne.jp] Sent: 12 September 1998 14:41
Japanese 24GHzers may have made 24GHz world record.
Date : Sept 3rd 1998 07:08AM JST Distance: 402km REPORTS EXC: RS41 to RS59
Locations: JM3KMO and JR3EDZ made QSO on 24GHz. JM3KMO was on Mt. Norikura in Honshu island and JR3EDZ was on top of Mt.Tsurugi in Shikoku island.
Rig: JM3KMO Specially tuned Maki-denki UTV-24G with single FLR026FH 100mW.
JR3EDZ HB JE1AAH based with DB6NT 2 x FLR026 HPA 200mW
Ant: JM3KMO 90cm Cheveron made. JR3EDZ 60cm Cheveron made
They made confirming QSO 2hr after to complete JA's new record rule. Their talk back was 1200MHz 1W HT ... always 59!
Congrat OMs! Regards Toshi JE1AAH
--
**********************************************
* Toshihiko Takamziawa: <toshi@kw.netlaputa.ne.jp>
* http://www.netlaputa.ne.jp/~toshi ________ *
**********************************************
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UK 10GHz FREQUENCY ALLOCATION CHANGES: NEWSFLASH FROM THE RADIOCOMMUNICATIONS AGENCY:
DEPARTMENT OF TRADE AND INDUSTRY P/98/620 31 July 1998CHANGES TO AMATEUR RADIO BAND
The current frequency allocation for radio amateurs is:
10.00 - 10.15 GHz and 10.30 - 10.50 GHz for the terrestrial service; and 10.45 - 10.50 GHz for the amateur satellite service.
From 1 February, 1999, the allocation will be:
10.00 - 10.125 GHz and 10.225 - 10.475 GHz for the terrestrial service. The amateur satellite allocation will remain unchanged.
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NEW WORLD 47GHz RECORD GOES TO FRANCE , THEN TO ITALY IN THE SAME MONTH !
A remarkable series of 47GHz contacts took place at the end of May this year. The first e-mail shown below is from Gil, F5CAU, who sent it to to us not knowing that his world record was being shattered only TWO WEEKS later by the Italian group whose e-mail follows that of Gil. Read on for a most interesting experience!.....E-mail number 1: From: F5CAU <f5cau@ibm.net>
A new 47GHz word record has been established on May 15th between F6BVA/p located in JN12GM (Tour de Blatere) 1439m asl and F5CAU/p located in JN14SC (Mont Aigoual) 1567m asl, distance 193Km.
After a cautious beaming job on 10 and 24 GHz, the 47GHz SSB QSO started at 20:20 GMT with nearly constant 51-52 reports until 21:00 GMT
An another contact was made the following morning at sunset with 53-54 reports affected by a deep QSB.
Best 73 de Gil F5CAU
CONGRATULATIONS TO BOTH OPERATORS
E-mail number 2: From: Massimo Gasparotto, IK3NWV [gasmas@keycomm.it]
I send-you this message regarding microwave activity in the 47 GHz band of my station IK3NWV, located in northern-east Italy, near Vicenza. I hope this will interest some microwave amateurs but my English is not good so please make corrections!
On 31 May 1998, two stations, IK3NWV/3 (op. Max) and I3CLZ/3 (op. Luciano), both located in Mount Grappa (JN55VU - 1600 m ASL) have made a two-way cw qso with I4QIG/5 (op. Gianni), located in JN54QB (900 m ASL). IK3NWV/3 and I3CLZ/3 received a report of 519 and 419 respectively and I4QIG/5 received a report of 529/529.
The QRB was 203 km .... a new World Record for 47 GHz!
The signal was affected by strong QSB due to the bad weather conditions (clouds and fog affected Mount Grappa all the time of the qso).
IK3NWV and I3CLZ use a home-made DB6NT type transverter (second version), producing about 0.2 mW out(?), a noise figure about 7/8 dB(?) and a 40 cm prime-focus dish. The local oscillator xtal is electronically thermo-stabilized so the frequency drift after 90 seconds from power-on is very low. The performance of these two stations has rapidly improved this year due to the new version of the DB6NT transverter which increase the output power and decrease the noise figure with respect to the first version.
At the time of writing IK3NWV is experimenting a 60 cm dish with good results. This project takes more time and patience but the construction is within everybody's grasp (i.e. for a microwave amateur devoted to home-made construction).
I4QIG use a tx DB6NT with 15 mW out (MKU12LO + MKU1224 + 23-47S), a rx DB6NT with 6.6 dB NF (MKU12LO + MKU47G) and 1 meter dish antenna.
73 de Max, IK3NWV (gasmas@keycomm.it)
MANY CONGRATULATIONS TO ALL THE FRENCH AND ITALIAN STATIONS WHO HAVE DONE ALL THIS EXCELLENT 47GHz WORK...
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FRENCH SMASH THEIR 47GHz RECORD TWICE IN A MONTH!
Subject: NEW FRENCH 47 GHz RECORD
Date: 25 March1998
Greetings everyone!
The following message has been received from F5CAU:
On 22 March 1998, F6BVA/P and F5CAU/P made their first two-way contact on 47GHz between Notre Dame des Anges (JN33DG) in Department 83 and Mont Doublier (JN33KQ), Department 06.
The path length was 67 kilometres. Reports of RS59 were exchanged. These reports indicate potentional for even greater distances for future contacts.
Each operator used a DB6NT transverter giving 100 microwatts (!) feeding a 75cm dish at F6BVA and a 50cm dish at F5CAU, Gil. 24GHz was used to line up these dishes for the 47GHz contact.
A big thank you is extended to Jean, F6DER, for his invaluable help in the mechanical side of the transverter construction!
We will do even better next time!
COMMENT FROM Eric Moutet, F1GHB: Can they exceed the world record of 184km ???
AND AGAIN! ..........
If all that were not enough they made another record breaking contact on March 29th, just a week after the first record. This time F5CAU/P was located in JN33RT while F6BVA/P was in JN33BG. The contact was maintained for Some 2 hours in order to study propagation conditions. At 0800 local time the signals were +40dB above noise! As the temperature rose during the day the signals became weaker and weaker with QSB.RETURN
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NEW VK 24GHz RECORD ~ Jan. 1998
On Saturday 10 January 1998, Neil Sandford VK6BHT portable at Separation Point near Geraldton worked Walter Howse VK6KZ portable at Point Louise near Green Head (north of Perth) over a 143 Km sea path on 24 GHz ssb.Conditions were not conducive to good propagation on that band with the temperature and humidity at each end of the path being 22 degrees Celsius and 98%. Reports of 3/1 each way on ssb were exchanged along with serial numbers for the Ross Hull/ Field Day contests. There was severe qsb and maintenance of the 5 minute cycles described previously (Neil the even five minutes and Wally the odd five minutes) was vital to the contact.
Signals from VK6BHT/p were initially heard at 11.24 UTC (19.24 local just after sunset) and the contact was completed between 13.10 and 13.23.
Both stations were using about 20 mW to 570 mm diameter dishes.
The path on 10 GHz was very solid.
This contact will be claimed as a new Australian distance record exceeding the previous one of 120 Km.
Attempts prior to this contact from Jurien Bay (a 172 Km path) were unsuccessful on 24 GHz and also unsuccessful the following morning again from Jurien despite strong signals on 10 GHz.
This was the last contact between these two operators for some time as Neil has now moved to VK2 although his qth has not been finalised.
73 VK6KZ
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NEW NORTH AMERICAN 24GHz RECORD
From: "Chip Angle" <chip@anglelinear.com> To: <sbms@ham-radio.com> Subject: NA 24 GHz record Date: Sun, 6 Jul 1997 08:55:24 -0800Congratulations to Chuck, WA6EXV & Dave K6OW on setting a new
North American 24GHz distance record. Yesterday, July 7th 1997 at 1414z,
Chuck from DM06WL, Walts Point and Dave from Heaps Peak, DM14KF, set a
new distance record of 166.25 miles (267.5km corrected) using 100 milliwatt
gunns and 2 foot dishes. Signals were at times 20 dB out of the noise.
Further distances will be forthcoming we're sure.
Keep up the super effort guys!
SBMS
...and congratulations from all of us over here in the UK...wideband still rules!
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