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nic countermeasures； or ECM devices； weighed an additional three pounds。
First； Ross popped open the collapsed umbrella of the silver dish antenna； five feet in diameter。 （Amy particularly liked this； as each day progressed； she would ask Ross when she would 〃open metal flower。〃） Then Ross attached the transmitter box； plugging in the krylon…cadmium fuel cells。 Next she linked the anti…jamming modules； and finally she hooked up the miniaturized puter terminal with its tiny keyboard and three…inch video screen。
This miniature equipment was highly sophisticated。 Ross's puter had a 189K memory and all circuitry was redundant； housings were hermetically sealed and shockproof； even the keyboard was impedance…operated； so there were no moving parts to get gummed up； or admit water or dust。
And it was incredibly rugged。 Ross remembered their 〃field tests。〃 In the ERTS parking lot； technicians would throw new equipment against the wall； kick it across the concrete； and leave it in a bucket of muddy water overnight。 Anything found working the next day was certified as field…worthy。
Now； in the sunset at Moruti； she punched in code coordinates to lock the transmission to Houston； checked signal strength； and waited the six minutes until the transponders matched up。 But the little screen continued to show only gray static； with intermittent pulses of color。 That meant someone was jamming them with a 〃symphony。〃
In ERTS slang； the simplest level of electronic jamming was called 〃tuba。〃 Like a kid next door practicing his tuba； this jamming was merely annoying； it occurred within limited frequencies； and was often random or accidental； but transmissions could generally pass through it。 At the next level was 〃string quartet；〃 where multiple frequencies were jammed in an orderly fashion； next was 〃big band；〃 where the electronic music covered a wider frequency range； and finally 〃symphony；〃 where virtually the full transmission range was blocked。
Ross was now getting hit by a 〃symphony。〃 To break through demanded coordination with Houston…which she was unable to arrange…but ERTS had several prearranged routines。 She tried them one after another and finally broke the jamming with a technique called interstitial coding。 （Interstitial coding utilized the fact that even dense music had periods of silence； or interstices； lasting microseconds。 It was possible to monitor the jamming signals； identify regularities in the interstices； and then transmit in bursts during the silences。）
Ross was gratified to see the little screen glow in a multicolored image…a map of their position in the Congo。 She punched in the field position lock； and a light blinked on the screen。 Words appeared in 〃shortline；〃 the pressed language devised for small…screen imagery。 F I L D TME…POSITN CHEK； PLS CONFRM LOCL TME 18：04 H 6/17/79。 She confirmed that it was indeed just after 6 P。M。 at their location。 Immediately； overlaid lines produced a scrambled pattern as their Field Time…Position was measured against the puter simulation run in Houston before their departure。
Ross was prepared for bad news。 According to her mental calculations； they had fallen some seventy…odd hours behind their projected timeline； and some twenty…odd hours behind the consortium。
Their original plan had called for them to jump onto the slopes of Mukenko at 2 P。M。 on June 17； arriving at Zinj approximately thirty…six hours later； around midday of June 19。 This would have put them onsite nearly two days before the consortium。
However； the SAM attack forced them to jump eighty miles south of their intended drop zone。 The jungle terrain before them was varied； and they could expect to pick up time rafting on rivers； but it would still take a minimum of three days to go eighty miles。
That meant that they could no longer expect to beat the consortium to the site。 Instead of arriving forty…eight hours ahead； they would be lucky if they arrived only twenty…four hours too late。
To her surprise； the screen blinked： FILD TME…POSITN CHEK ： …09 ： 04 H WEL DUN。 They were only nine hours off their simulation timeline。
〃What does that mean？〃 Munro asked； looking at the screen。
There was only one possible conclusion。 〃Something has slowed the consortium；〃 Ross said。
On the screen they read EURO/NIP0N C0NSRTIM LEGL TRUBL GOMA AIRPRT ZAIR THEIR AIRCRFT FOUND RADIOACTIVE TUF LUK FOR THEM。
〃Travis has been working back in Houston；〃 Ross said。 She could imagine what it must have cost ERTS to put in the fix at the rural airport in Goma。 〃But it means we can still do it； if we can make up the nine hours。〃
〃We can do it；〃 Munro said。
In the light of the setting equatorial sun； Moruti camp gleamed like a cluster of dazzling jewels…a silver dish antenna； and five silver…domed tents； all reflecting the fiery sun。 Peter Elliot sat on the hilltop with Amy and stared at the rain forest spread out below them。 As night fell； the first hazy strands of mist appeared； and as the darkness deepened and water vapor condensed in the cooling air； the forest became shrouded in dense； darkening fog。
DAY 6： LIKO
June 18； 1979
1。Rain Forest
THE NEXT MORNING THEY ENTERED THE HUMID perpetual gloom of the Congo rain forest。
Munro noted the return of old feelings of oppression and claustrophobia； tinged with a strange； overpowering lassitude。 As a Congo mercenary in the 1960s； he had avoided the jungle wherever possible。 Most military engagements had occurred in open spaces…in the Belgian colonial towns； along riverbanks； beside the red dirt roads。 Nobody wanted to fight in the jungle； the mercenaries hated it； and the superstitious Sambas feared it。 When the mercenaries advanced； the rebels often fled into the bush； but they never went very far； and Munro's troops never pursued them。 They just waited for them to e out again。
Even in。 the 1960s the jungle remained terra incognita； …an unknown land with the power to hold the technology of mechanized warfare beyond its periphery。 And with good reason； Munro thought。 Men just did not belong there。 He was not pleased to be back。
Elliot； never having been in a rain forest； was fascinated。 The jungle was different …from the way he had imagined it to be。 He was totally unprepared for the scale…the gigantic trees soaring over his head； the trunks as broad as a house； the thick snaking moss…covered roots。 To move in the vast space beneath these trees was like being in a very dark cathedral： the sun was pletely blocked； and he could not get an exposure reading on his camera。
He had also expected the jungle to be much denser than it was。 Their party moved through it freely； in a surprising way it seemed barren and silent…there were occasional birdcalls and cries from monkeys； but otherwise a profound stillness settled over them。 And it was oddly monotonous： although he saw every shade of green in the foliage and the clinging creeper vines； there were few flowers or blooms。 Even the occasional orchids seemed pale and muted。
He had expected rotting decay at every turn； but that was not true either。 The ground underfoot was often firm； and the air had a neutral smell。 But it was incredibly hot； and it seemed as th