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Re: PcSat-1 Bulletin Question
by Robert Bruninga 02 Oct '06

02 Oct '06

> I see a PcSat-1 bulletin I do not understand. > BLN2PCSAT:Aliases are R,W,Wn-N,Tn-N & ARISS > I understand ARISS. Can you tell me the meaning of the other aliases? Yes, PCSAT-1 acts just like any terrestrial APRS digipeater. So we wanted to make sure it would respond to any path that is typicallly used by terrestrial users so that all they had to do to use it was to change their frequency, and not have to also change their path. So PCSAT-1 was made to respond to all of the existing and legacy paths that are used on APRS. They are: RELAY WIDE WIDEn-N TRACEn-N and ARISS And we are seeing many people using a variet of these paths. HOWEVER, there is a problem when people use the WIDEn-N and TRACEn-N paths, since these are decremented at each hop. Thus, a WIDE2-2 packet digiepated by PCSAT-1 will appear as ...PCSAT-1,WIDE2-1 and will not indicate the PCSAT-1* until the final hop. In this case, there is only one hop and so the FINDU.COM web-page that parses all APRS traffic looking for packets via PCSAT-1 will not see them because it wont see the PCSAT-1* marker. If people want to keep track of their success on FINDU.COM ( http://pcasat.aprs.org ) then they should not use a n-N path and should change their SSID so that their station call is unique for this space application. Otherwise, as soon as they use the same station again on terrestrial APRS, then the posit via the satellite will be overwritten. Bob, WB4APR

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HITSAT 1630 UTC
by Mike Rupprecht 02 Oct '06

02 Oct '06

AOS 1630 UTC Oct 02 (JN49lr) Hit1 jr8yjt Hit2 a0301290938 Hit3 384a4c494e49474a Hit4 c1ddd1e2 Hit1 jr8yjt Hit2 a0301330528 Hit3 294b4e484d4b4749 Hit4 8bddd1e2 LOS 1639 UTC ------------------------------------------------------------------------ -------- Date: Oct, 03 Time: 01:33:05 JST HIT2 a0301330528 HIT3 294b4e484d4b4749 HIT4 8bddd1e2 Temp +X face : 116,452 °C Temp -X face : 34,779 °C Temp +Y face : 27,573 °C Temp -Y face : 41,986 °C Temp +Z face : 29,975 °C Temp -Z face : 34,779 °C Temp Transceiver: 44,388 °C Temp Battery : 39,584 °C Prim. Battery : 5,430 V Sec. Battery : 8,633 V 5 Volts : 4,951 V 5.5 Volts : 5,353 V RSSI : 0,781 V 73, Mike DK3WN

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Interdigital filters
by Andrew Rich 02 Oct '06

02 Oct '06

Anybody made interdigital filters before ? Want to make one for 1090 MHz ----------------------------------------- Andrew Rich Amateur radio callsign VK4TEC email: vk4tec(a)tech-software.net web: http://www.tech-software.net Brisbane AUSTRALIA

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AO-51 Mode L/U over West Malaysia
by Sion Chow Q. C. (9W2QC) 02 Oct '06

02 Oct '06

Hello All, This morning, 2nd October 2006 at 0945 Hours Local or 0145 Hours UTC, we had a 72 degree pass of AO-51 over West Malaysia. My father, Dr. Chow C. O., 9M2CCO and I were in the shack this morning to prepare for the pass. This would be our first attempt to test out the L band as there are no terrestrial activities on the L band locally to try it out. First of all, we started with the V/U repeater after AOS. After verifying that we could operate it normally, we gave out a few CQ calls, but unfortunately no one responded. Then we moved to the L/U repeater. My father gave out a few CQ calls, as I could not operate on this frequency. (just because I am reluctant to take the morse code test) To our surprise, with only 10 Watts of power from the ICOM IC-910H into a 16-Element Comet Yagi Antenna, gave a very clear and solid audio on the downlink. When the elevation was above 30 degrees, only 5 watts of power was needed to have a very clear downlink. However, a little more power was needed when the elevation dropped below 30 degrees. 10 watts was more than enough until about 5 degrees in elevation. But we have some surrounding tall buildings in the LOS direction anyway. To conclude our first L band test, I would say that this is a very interesting mode, and it requires less power on the uplink as compared to 2M. Maybe this is due to the fact that the 2M band is polluted with illegal operations around this region. This can be proven when AO-51 is operating without the required PL tone. Equipment used were ICOM IC-910H, 10-Element Yagi for 2M, 2x15-Element Yagi for 70CM (Unfortunately no preamp for the downlink) and 16-Element Yagi for 23 CM. All antennas are vertically polarized. The station here was also automatically tracking the antenna and Doppler and this made operating very simple. A big thank you to the command team for this very interesting mode, and will like to see it more often in the future. I have tested the V/S mode before, and am now waiting to test the L/S mode in the future. 73, Sion Chow Q. C., 9W2QC. -- No virus found in this outgoing message. Checked by AVG Free Edition. Version: 7.1.407 / Virus Database: 268.12.10/459 - Release Date: 9/29/2006

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HITSAT 0725 UTC
by Mike Rupprecht 02 Oct '06

02 Oct '06

AOS 0725 UTC Oct 02 (JN49lr) Hit3 214d4d4a4e4c4b49 Hit4 c1dcd2e2 Hit1 jr8yjt Hit2 a0216261726 Hit3 284c4c4a4d49474c LOS 0731 UTC ------------------------------------------------------------------------ -------- Date: Oct, 02 Time: 16:26:17 JST HIT2 a0216261726 HIT3 284c4c4a4d49474c HIT4 c1dcd2e2 Temp +X face : 118,854 °C Temp -X face : 32,377 °C Temp +Y face : 32,377 °C Temp -Y face : 37,181 °C Temp +Z face : 29,975 °C Temp -Z face : 39,584 °C Temp Transceiver: 44,388 °C Temp Battery : 32,377 °C Prim. Battery : 7,539 V Sec. Battery : 8,594 V 5 Volts : 4,974 V 5.5 Volts : 5,353 V RSSI : 0,742 V 73, Mike DK3WN

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HITSAT 0551 UTC correction
by Mike Rupprecht 02 Oct '06

02 Oct '06

AOS 0551 UTC Oct 02 (JN49lr) Hit3 ..4d51494w4c4b49 Hit4 c1dcd1c2 Hit1 jr8yjt Hit2 a0214515026 Hit3 274b4c404d49474b Hit4 8bddd1e3 Hit1 jr8yjt Hit2 a0214554530 Hit3 2f4c.... LOS 0600 UTC ------------------------------------------------------------------------ -------- Date: Oct, 02 Time: 14:51:50 JST HIT2 a0214515026 HIT3 274b4c404d49474b HIT4 8bddd1e3 Temp +X face : 121,256 °C Temp -X face : 34,779 °C Temp +Y face : 32,377 °C Temp -Y face : 61,203 °C Temp +Z face : 29,975 °C Temp -Z face : 39,584 °C Temp Transceiver: 44,388 °C Temp Battery : 34,779 °C Prim. Battery : 5,430 V Sec. Battery : 8,633 V 5 Volts : 4,951 V 5.5 Volts : 5,377 V RSSI : 0,742 V 73, Mike DK3WN ____________ Virus checked by G DATA AntiVirusKit Version: AVK 16.10106 from 01.10.2006 Virus news: www.antiviruslab.com

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HITSAT 0551 UTC
by Mike Rupprecht 02 Oct '06

02 Oct '06

AOS 0551 UTC Oct 02 (JN49lr) Hit3 ..4d51494w4c4b49 Hit4 c1dcd1c2 Hit1 jr8yjt Hit2 a02214515026 Hit3 274b4c404d49474b Hit4 8bddd1e3 Hit1 jr8yjt Hit2 a0214554530 Hit3 2f4c.... LOS 0600 UTC ------------------------------------------------------------------------ -------- Date: Oct, 02 Time: 21:45:15 JST HIT2 a0221451502 HIT3 274b4c404d49474b HIT4 8bddd1e3 Temp +X face : 121,256 °C Temp -X face : 34,779 °C Temp +Y face : 32,377 °C Temp -Y face : 61,203 °C Temp +Z face : 29,975 °C Temp -Z face : 39,584 °C Temp Transceiver: 44,388 °C Temp Battery : 34,779 °C Prim. Battery : 5,430 V Sec. Battery : 8,633 V 5 Volts : 4,951 V 5.5 Volts : 5,377 V RSSI : 0,039 V 73, Mike DK3WN

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upgrading from my FT-726R?
by Scott Townley 02 Oct '06

02 Oct '06

I currently have/use the old FT-726R for satellite and weak-signal work. I have brick amps and mast-mounted preamps for each band. My question is: I have been considering upgrading to something more current--the usual list of suspects like the FT-736, IC-821H, IC-910H, or TS-790A (probably not the IC-970H because of $, but that depends on the findings from this msg..). At least according to the various QST reviews, I don't see a lot of separation in basic RF performance between this whole group of radios. It's clear that if I want any sort of computer control of the rig that any of the list would do, and the most recent ones have options like AF DSP, but purely from an RF perspective...the QST reviews were not much improved from the FT-726R for any radio. Particularly appalling to me was the published TX IMD of both the FT-736 and the IC-910H... So, if computer control isn't a big deal, is there really a compelling reason to change? Are the reviews flawed/overly pessimistic? The older radios were pre-phase noise testing, but none of the current rigs seem all that great in that respect anyway. What am I missing? TIA, Scott Townley NX7U Gilbert, AZ DM43di http://members.cox.net/nx7u

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HITSAT no receive
by Vincenzo Mone 01 Oct '06

01 Oct '06

Hi to the list, right now I am having a pass of HITSAT on my qth but I cannot receive anything on 437.275 CW and on 437.425 FM. I ask is that normal or I have problems? Thanks 73 de Enzo IK8OZV EasyLog 5 BetaTester EasyLog PDA BetaTester WinBollet BetaTester D.C.I. CheckPoint Regione Campania Skype: ik8ozv8520 *************************************** ***** GSM +39 338 9749786 ***** ***** SMS +39 338 9749786 ***** ***** FAX +39 328 7244294 ***** *** 2nd e-mail: vimone(a)tin.it *** ***************************************

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HITSAT
by Vincenzo Mone 01 Oct '06

01 Oct '06

Hi to the list, right now I am having a pass of HITSAT on my qth but I cannot receive anything on 437.275 CW and on 437.425 FM. I ask is that normal or I have problems? Thanks

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