Good morning all,

even if this setup probably won't be used by anyone I thought I'd share my findings.

I've built a couple of lindenblads following the AA2TX articles. The EZ-lindenblad for 2m and the parasitic lindenblad for 70cm. This is for a 2 week temporary location in IS0 (JM49MG). Both antennas have been made with locally available hardware, not very far from original design anyway. The biggest difference is perhaps the parasitic elements for the 70 cm one which have a 4mm diameter instead of approximately the 3mm of original design. Both antennas are on the same pole, 1.5 meters apart and not very far from the roof (< 1m the 2m one), they have however a clear sky view. Cable runs are quite long, 20m of rg-213 on both bands and no preamps. Only RHCP versions made. Rig is ft-847 with internal preamps on. In 4 days I have tried almost all LEOs (but AO-16 and AO-27 which are non operational afaik).

DO-64: never heard anything (is it operational?)

AO-51: 435.300 output can be heard at times, some callsing can be undestood, never quieting the receiver. FM uplink in europe is too crowded to attempt any try at txing. 435.150 output is much lower than the 435.300 one, only rarely it can be heard but when it's heard I can hear myself briefly from the USB uplink. Obviously no contact is possible.

SO-50: usually can't be heard, sometimes during a pass on positive QSBs the downlink can be heard very noisy and for a short time (so far only copied a full callsign).

AO-07: downlink on mode B can be heard quite easily down to 3 degrees, uplink is next to impossible (50W out of the rig, CW only of course) but probably depends on the high level of power used in europe as during a pass over the atlantic and part of brazil I could hear my own signal down to 3 degrees and I couldn't hear any other signal. No contacts have been made, so far only heard my own signal a few times and very low (maybe the 432 MHz uplink is too far out of the optimal passband of the 435 MHz lindy?)

FO-29: downlink can be heard, not very strong but workable, uplink is sometimes difficult but a lot easier than AO-07. No contacts made so far, have been calling CQ in CW for a few passes.

VO-52: downlink easy to copy as on AO-07, quite easy to hear my own CW peaking at S3 during all passes over 5 degrees, no contacts made, heard only a lot of SSB stations, this is the easier sat with this setup.

ISS: never heard any signal so far.

I think I'll go back to the homemade V/U yagi "arrow" like on next travels, that's a real performer on LEOs.

PS: the NB on FT-847 (first time using this rig) is quite uneffective, motors on the street still make an audible signal when passing by, it's attenuated but not like on all other rigs I know. Is there any fix for it?

73 Frank IS0/IZ8DWF