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Report of FIRST 4m expedition to JN51XX
Published on 17 December 2007 by IK0IXI

Hi guys! Wind & cold never stopped crazy people in ham radio!!

IQ0HL/0 made 14 QSOs from JN51XX, despite the cold and windy day here in ltaly.
December is tno the perfect month for outdoors operations, but 31 December is so close that our team (IK0IXI, I0LYO and IK0LZR) quickly activated for the FIRST time ( and we hope not for the last time...) this rare square on 70 MHz before that date.

We are planning more operations from there if 4m is again possible in Italy.

Special TKS to G7CNF-Nige for HF/GSM support on sked management.
73 to ALL de IQ0HL/0 Team.

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70 MHz in EI
Published on 13 November 2007 by ei2ip

70 MHz will become a general allocation in EI, as soon as some
administrative details are attended to by ComReg.

There is no need to send in an application: it will be allocated to EI Experimenters automatically.

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Published on 10 November 2007 by ct1ffu/tony

After the J5SIX/b project was successfully concluded, J5JUA have now obtained permissions to install more 2 beacons in Guiné-Bissau.

J5FOUR/B will run on 70.010 MHz CW with 20 W into a horizontal dipole,
and J5TWO/B will run 20 W into a Diamond-X510 vertical antenna.

These two new beacons will soon run from Bissau, the capital of Guiné.

Thanks again to J5JUA/CT2GQA for his support, and to CT1FJO for the keyers.

73's all from Tony CT1FFU

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1A4A on 70 MHz
Published on 17 October 2007 by Bo, OZ2M

During the operation of October 2007, the station with the callsing 1A4A will be active on 70 MHz and 144 MHz, SSB, CW, FM and WSJT. The operation will be mainly focused on 4 meters band.

The frequencies will be: 70.200 SSB – CW; 70.300 FM; 70.295 Digital modes 1A4A will be in these bands on October 25th, 26th and 27th. More info will added soon in this website.

Source: http://www.1a4a.org/dblog/articolo.asp?articolo=90

Report on Italian 70 MHz activity
Published on 21 September 2007 by Tony, I0JX
A technical report on the italian 70 MHz activity up to Sept. 15th 2007 has been prepared, and it is now freely available for download on www.space.it/70mhz Even though it is in Italian, it should not be difficult for a non-italian to get some understanding of it. The report was issued in advance with respect to the 70 MHz authorization deadline (December 31st), so as to give our Communications Ministry more time to decide on its possible extension to year 2008, or even further. On the other hand, the additional results that could be obtained waiting up to the end of this year would probably add little value to those already achieved during the past sporadic-E season. The report has been sent to our Communications Ministry by Piero Tognolatti (I0KPT) Full Professor of the Electromagnetic Fields Group and Director of the Electrical Engineering and Information Theory Department of the University of l'Aquila. In his accompanying letter, Piero stated that continuing the experiments over the next years would be justified on technical grounds. The main aims would be to get a better characterization of the sporadic-E propagation (including multi-hop with US / Canada, cross-band), as well as to verify the possible occurrence of other propagation modes, namely transequatorial starting 2008-2009, and F2 somewhat later. At that regard, in the report it was noted that the high latitude of most European countries having a 70 MHz amateur allocation is one of the major reasons why no transequatorial contacts took place, to our knowledge, during the past sunspot cycle peak years. Central and southern Italy instead lie at nearly ideal latitudes with regard to transequatorial propagation, and this will be of great help for establishing two-way contacts with South Africa, a country where the 70 MHz band can legally be used.

4 m to be continued from DL
Published on 5 September 2007 by CT1HZE
Good news from DL: Klaus, DL3YEE has got his 4 m licence today. The licence is valid from Sept. 1st to Oct. 31st. TX QRG is also 69.995 MHz. Klaus will be qrv soon from JO42GE with his 4 ele yagi.

My last day of operation from JO53CN on 4m will be Sept. 8th.
73s and GL
Joe, DI2AL on 4 m (DL8HCZ/CT1HZE) info@DUBUS.de

Hungarian 70 MHz Summer Experiment ends successfully
Published on 13 August 2007 by HA5PT

After the closing down of FM broadcasting stations in February, Hungarian radio amateurs were granted a 30 day experimental radio permit to study radio wave propagation in July 2007.

List of active Hungarian stations:
70M1FV, 70M1YA, 70M1XY, 70M2SX, 70M3MQ, HA4YF (Xband), 70M5HRK (operators: HG5XA and HA5TMK), 70M5PT, 70M5TI, 70M8BI2, 70M8BI, 70M8BR, 70M8MV plus beacon 70M1BVC

Summary of HA activity:

9A    24
CT     3
CT3    1
EI     4
F      1
G    135
GD     8
GI     1
GM     9
GU     1
GW    10
HA    42
I      1
LX     5
OH     1
OZ    13
S5    25
SP     1
SV     9
Please refer to detailed report with consolidated logs in Hungarian: http://holman.ehc.hu/70Mxxx_kiserlet_riport.pdf
Haros Radioclub submitted the final report on August 1 together with a request to extend the experiment period for August. Unfortunately, the National Telecom Authority rejected to grant a new licence, stating another experiment would not provide any further information for frequency allocation.
We had a great experiment and were glad to talk with many of you. During the experiment we enjoyed being part of the 4m ham radio community, and we highly appreciated that our unusual 70Mxxx station identifiers were accepted by our foreign radio friends. We are organizing to send our QSL cards direct, please wait until you get our cards, we are expecting to send out our cards by early September.
We are going to submit our experiment results to the government of Hungary, requesting a band segment to be allocated for amateur radio service in the Hungarian frequency tables. Until this goal is achieved, we are to remain QRV for cross-band contacts.

70 MHz filter modifications for FT847
Published on 12 August 2007 by G6GVI

Marc PA1O has produced two documents, covering his analysis and simulation of the RX and TX band-pass filters, and the PA output and low-pass filter circuits.

His analysis highlights errors in some of the previously published component values, and suggests corrected values.
Marc's documents also include photographs of the PCB modifications, and his measurements of efficiency and reflection coefficient.

Marc's documents can be accessed from the Technical Features section.

Is there some hope in VE for 4 m?
Published on 12 August 2007 by EI3IO
Whilst engaged on benchmarking spectrum developments around the world, I came across this reference to a consultative process in Canada last year. It seems to me it opens the door for possible 4m activity in rural areas. It will be interesting to see what our VE readers think:

"In early 2006, Industry Canada has reallocated television channels 63 (764-770 MHz) and 68 (794-790 MHz) for public safety applications and the Department will consider the eventual release of channels 64 (770-776 MHz) and 69 (790-796 MHz) once the digital transition to lower cannels of existing television stations is well underway.

As part of the same decisions the Department has agreed to consider on a case by case basis the use of television channels 2 to 59 (54-72 MHz, 76-88 MHz, 174-216 MHz, 470-608 MHz and 614-746 MHz) for Advanced Communications Services in Remote Rural Communities. Proposals will be considered if they are at sufficient distance from major population centres, broadcasting facilities and their service contours so as not to cause them interference and on the condition that they do not constrain the provision of existing and new broadcasting services."

73s and good luck

PS Hope to work you Joe when I return from ET, 23 August!

4 m in DL
Published on 10 August 2007 by CT1HZE
4m in DL: I am qrv on 4m untill the beginning of September. Any JT6M (or FSK441) skeds most welcome especially for the next days (Perseids). I TX 69.995 with the call DI2AL and can RX any other 4m QRG. Loc. JO53CN. According to the authorities there is no chance for any other 4m activity from DL again, so better take your chance now....Pse sked proposals to info@DUBUS.de - ANY EI / GJ / IS0 qrv on 4m for Perseids??
In case of any Es condx to Northern DL pse call me on the phone: ++49 40 71097158, thank you! - 73 Joe, DL8HCZ/CT1HZE