S21DX IOTA AS-140, 10-16 December 2022

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Islands on the air

Probable Frequency plan (sorry for delay – there is very unreliable internet at site)
SSB:
40m: 7155 KHz
20m: 14225 KHz
15m: 21265 KHz
10m: 28465 KHz

FT8 (FOX/Hound mode):
160m: 1836 KHz
80m: 3567 KHz
40m: 7056 KHz
30m: 10131 KHz
20m: 14090 KHz
17m: 18095 KHz
15m: 21091 KHz
12m: 24911 KHz
10m: 28091 KHz

This 2022 we are planning to activate AS-140 from “Dhal Char” island [Island may changed due to approval from authority – but it will be AS-140]. Planning Three (3) HF stations and One QO-100 station, Few more better antennas (Beam, 4 Square array, Beverage RX etc). We are planning to use a SSPA for SSB Phone if we can buy a larger (3000VA) generator.

QSL Policy:
Similar to our 2 past IOTA, we will NOT monetize QSL to fund the DX-pedition. Paper QSL will be handled by our good friend David EB7DX who acts as our QSL Manager for last 15+ years. Please check EB7DX website for more detail about QSL service. All QSO log also will be uploaded in LoTW and ClubLog immediately if not during the activation. No need for contribution for LOTW/CLUBLOG confirmation (It’s free) – but your support NOW can help us prepare better which will increase your chance of having a QSO with us in multiple bands.

Antenna firm and Rigs:

Support us to activate s21dx

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With your support we can operate more days and more QSO with better antennas. Click below button to know how you can help us which we appreciate most or make a small donation to fund the expedition through paypal or card. (JA station can paypal to fazlay.rabby-at-gmail.com)

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UPDATES and NEWS

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• Any correction please contact our QSL Manager EB7DX.
• All logs has been uploaded to ClubLog and LoTW.
• The station started emitting RF from 1800z 09th December (10 December 0000 Local time) and stopped operation on 1800Z 16 December. Completed around 10,000 QSO.
• Callsign License received from the Bangladesh Telecommunication Regulatory Commission (BTRC) [4 Dec 2022]
• The third beam antenna (Hexbeam for FT8) is now ready [27 Nov 2022].
• License fee for S21DX callsign has been deposited with the regulatory body, hope to get the permission letter in few days.
• Second Spiderbeam has been fabricated for 20/15/10m and now ready.
• OM Omi finally got his callsign S21OM, welcome to the team.
• 20/17/15m yagi antenna kit and 18m telescopic mast arrived, Thanks to Spiderbeam GmbH for supporting us.
• 8 CMC choke has been prepared.
• 18m Fiber mast arrived from Japan (Thanks JN7FAH)
• S21IT has joined the team. [26 October 2022]
• S21MK has joined the team. [24 October 2022]
• 5 Band Hexbeam Homebrew in process.[24 October 2022]
• Second spiderbeam yagi on its way – thanks to Spiderbeam for supporting us. [22 Oct 2022]
• 2x 12m aluminum telescopic mast fabricated locally, now we have 3 such pole – these will be used for 2 spiderbeam yagi and one homebrew hexbeam. [22 Oct 2022]
• Kensuke Nakajima JN7FAH sending his 18m fiber pole so the 160m antenna can be more efficient compared to our 12m pole. He is also sending us BN73 core for receive antenna. [20 Oct 2022]
• First 3 band spiderbeam yagi antenna assembled and tested. [8 Oct 2022]
• S21BK and S21TG has been selected as operator. [3 Sep 2022]
• 160m LPF filter ready as an extra.
• 40m 4 Square coupler ready.
• Kensuki San JN7FAH pursuing us to making an 160m antenna (We will try our best to get active on 160m if all goes well).
• Franz DF6QV helping us making the Hybrid Coupler for our 40m 4 square antenna.
• Making a Hybrid coupler for 40m 4 Square antenna is in progress.
• Bandpass filter for 80/40/30/20/17/15/10m are ready.
• DXWORLD-E is sending us a SSPA KIT, this SSPA will help us reach further.
• 4 Telescopic Fiber glass mast shipped by Spiderbeam.
• 4 Telescopic Fishing poles arrived from China for the VDA support boom. Additional 2 poles in transit.
• S21AM is cleaning his 3 element Beam antenna, soon it would be cleaned and refitted for testing.
• Antenna planning done. More than 8 antennas in the list. Fishing poles already ordered from China for making VDA booms.
• S21RC has applied to authority to buy an IC-7300 rig (yes, buying/importing radio need prior Govt. permission here). – *personal expense.
• Homebrewed BPF tested for 20m by S21RC, now in the process of making for other bands.

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